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Conserved domains on  [gi|442628730|ref|NP_001260663|]
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dynamin associated protein 160, isoform G [Drosophila melanogaster]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
184-279 1.74e-42

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


:

Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 149.74  E-value: 1.74e-42
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    184 EWAVQAAQKRKYTQVFNANDRTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMAGE 263
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730    264 KIPVTLPQEWVPPNLR 279
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
7-101 1.46e-38

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


:

Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 138.56  E-value: 1.46e-38
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730      7 AWAVTPRERLKYQEQFRALQP-QAGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLRGM 85
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730     86 DVPKVLPPSLLSSLTG 101
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
945-1002 1.68e-31

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 117.05  E-value: 1.68e-31
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKV 1002
Cdd:cd11839     1 IAQVIAPFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVKL 58
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1029-1081 1.33e-30

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 114.44  E-value: 1.33e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11840     1 QVIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNGQTGLFPSNYVEP 53
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
783-834 2.43e-30

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 113.66  E-value: 2.43e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11838     1 EYIALYPYESNEPGDLTFNAGDVILVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
678-732 1.28e-28

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 108.98  E-value: 1.28e-28
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11836     1 KYRALYAFEARNPDEISFQPGDIIQVDESQVAEPGWLAGELKGKTGWFPANYVEK 55
SMC_prok_B super family cl37069
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
372-619 1.40e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


The actual alignment was detected with superfamily member TIGR02168:

Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.03  E-value: 1.40e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQE----ELERQLQRQReiemekEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERV 447
Cdd:TIGR02168  676 RREIEELEEKIEELEekiaELEKALAELR------KELEELEEELEQLRKELEELSRQISALRKDLARLEAEVEQLEERI 749
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 LKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:TIGR02168  750 AQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKALREALDELRAELTLLNEEAANLRERLESL 829
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASG-------AALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITK 600
Cdd:TIGR02168  830 ERRIAATErrledleEQIEELSEDIESLAAEIEELEELIEELESELEALLNERASLEEALALLRSELEELSEELRELESK 909
                          250
                   ....*....|....*....
gi 442628730   601 CEDLYKEYDVQRTSVLELK 619
Cdd:TIGR02168  910 RSELRRELEELREKLAQLE 928
 
Name Accession Description Interval E-value
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
184-279 1.74e-42

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 149.74  E-value: 1.74e-42
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    184 EWAVQAAQKRKYTQVFNANDRTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMAGE 263
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730    264 KIPVTLPQEWVPPNLR 279
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
7-101 1.46e-38

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 138.56  E-value: 1.46e-38
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730      7 AWAVTPRERLKYQEQFRALQP-QAGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLRGM 85
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730     86 DVPKVLPPSLLSSLTG 101
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
945-1002 1.68e-31

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 117.05  E-value: 1.68e-31
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKV 1002
Cdd:cd11839     1 IAQVIAPFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVKL 58
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1029-1081 1.33e-30

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 114.44  E-value: 1.33e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11840     1 QVIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNGQTGLFPSNYVEP 53
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
783-834 2.43e-30

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 113.66  E-value: 2.43e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11838     1 EYIALYPYESNEPGDLTFNAGDVILVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
678-732 1.28e-28

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 108.98  E-value: 1.28e-28
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11836     1 KYRALYAFEARNPDEISFQPGDIIQVDESQVAEPGWLAGELKGKTGWFPANYVEK 55
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
195-261 1.57e-24

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 97.68  E-value: 1.57e-24
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  195 YTQVFNANDRTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMA 261
Cdd:cd00052     1 YDQIFRSLDPDGDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
18-83 9.88e-24

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 95.36  E-value: 9.88e-24
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   18 YQEQFRALQPQ-AGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLR 83
Cdd:cd00052     1 YDQIFRSLDPDgDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1029-1079 1.50e-20

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 86.05  E-value: 1.50e-20
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|..
gi 442628730   1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN-GLSGLFPSNYV 1079
Cdd:smart00326    4 QVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGrGKEGLFPSNYV 55
SH3_9 pfam14604
Variant SH3 domain;
1032-1079 2.55e-17

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 76.50  E-value: 2.55e-17
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 442628730  1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEESEDGWWEGINTGRTGLVPANYV 48
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
780-833 8.50e-16

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 72.57  E-value: 8.50e-16
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730    780 DVEYYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGS-RTGMFPSNYVQ 833
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKsDDGWWKGRLGRgKEGLFPSNYVE 56
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
372-619 1.40e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.03  E-value: 1.40e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQE----ELERQLQRQReiemekEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERV 447
Cdd:TIGR02168  676 RREIEELEEKIEELEekiaELEKALAELR------KELEELEEELEQLRKELEELSRQISALRKDLARLEAEVEQLEERI 749
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 LKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:TIGR02168  750 AQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKALREALDELRAELTLLNEEAANLRERLESL 829
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASG-------AALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITK 600
Cdd:TIGR02168  830 ERRIAATErrledleEQIEELSEDIESLAAEIEELEELIEELESELEALLNERASLEEALALLRSELEELSEELRELESK 909
                          250
                   ....*....|....*....
gi 442628730   601 CEDLYKEYDVQRTSVLELK 619
Cdd:TIGR02168  910 RSELRRELEELREKLAQLE 928
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
191-275 3.07e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.41  E-value: 3.07e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   191 QKRKYTQVFNANDrTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMAGE--KIPVT 268
Cdd:pfam12763    8 EIKKYWEIFSGLK-PENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNiaDVPDE 86

                   ....*..
gi 442628730   269 LPQEWVP 275
Cdd:pfam12763   87 LPDWLVP 93
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
12-98 3.99e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.02  E-value: 3.99e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    12 PRERLKYQEQFRALQPQAGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLRGM--DVPK 89
Cdd:pfam12763    6 EWEIKKYWEIFSGLKPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNiaDVPD 85

                   ....*....
gi 442628730    90 VLPPSLLSS 98
Cdd:pfam12763   86 ELPDWLVPG 94
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
942-1001 1.91e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 68.72  E-value: 1.91e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    942 RSEIAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgRRRQIGWFPATYVK 1001
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRL----GRGKEGLFPSNYVE 56
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
675-731 3.67e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.56  E-value: 3.67e-14
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730    675 GFVKYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEIN-GHTGWFPESYVE 731
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITV-LEKS-DDGWWKGRLGrGKEGLFPSNYVE 56
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
342-620 7.62e-13

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 73.05  E-value: 7.62e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  342 AELDRRRKIMEDQqrkereererkereeadkREKAR-----------LEAE------RKQQEELERQLQRQREIEMEKEE 404
Cdd:COG1196   196 GELERQLEPLERQ------------------AEKAEryrelkeelkeLEAEllllklRELEAELEELEAELEELEAELEE 257
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  405 QRKrELEAKEAARKELEKQRQQewEQARIAEMNAQ---KEREQERVLKQKAHNTQlnvELSTLNEKIKELSQRICDTRAG 481
Cdd:COG1196   258 LEA-ELAELEAELEELRLELEE--LELELEEAQAEeyeLLAELARLEQDIARLEE---RRRELEERLEELEEELAELEEE 331
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  482 VTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQ 561
Cdd:COG1196   332 LEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAEEELEELAEELLEALRAAAELAAQLEELEEAEEA 411
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  562 IKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKY 620
Cdd:COG1196   412 LLERLERLEEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLELLAELLE 470
SH3_9 pfam14604
Variant SH3 domain;
681-731 1.37e-12

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 63.02  E-value: 1.37e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730   681 AVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITV--IEESEDGWWEGINTGRTGLVPANYVE 49
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
341-648 7.76e-11

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 66.30  E-value: 7.76e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKarlEAERKQQEELERQLQRQREIE---MEKEEQRKRELEAKEAAR 417
Cdd:pfam17380  326 QAEMDRQAAIYAEQERMAMERERELERIRQEERKR---ELERIRQEEIAMEISRMRELErlqMERQQKNERVRQELEAAR 402
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   418 KE--LEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGvtnvktviDGMRTQ 495
Cdd:pfam17380  403 KVkiLEEERQRKIQQQKVEMEQIRAEQEEARQREVRRLEEERAREMERVRLEEQERQQQVERLRQQ--------EEERKR 474
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   496 RDTSMSEMSQLKARIKEQNAKLLQLTQE---RAKWEAKSKASGAalggENAQQEQLNAAFAHKQliiNQIKDKVENISKE 572
Cdd:pfam17380  475 KKLELEKEKRDRKRAEEQRRKILEKELEerkQAMIEEERKRKLL----EKEMEERQKAIYEEER---RREAEEERRKQQE 547
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   573 IESKKEdINTNDVQMSELKAELSAL---------ITKCEDLYKEYDV--QRTSVLELKYNRKNE-------------TSV 628
Cdd:pfam17380  548 MEERRR-IQEQMRKATEERSRLEAMereremmrqIVESEKARAEYEAttPITTIKPIYRPRISEyqppdveshmirfTTQ 626
                          330       340
                   ....*....|....*....|
gi 442628730   629 SSAWDTGSSSAWEETGTTVT 648
Cdd:pfam17380  627 SPEWATPSPATWNPEWNTVT 646
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
785-829 4.20e-10

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 56.06  E-value: 4.20e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 442628730   785 IAAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGT-IGSRTGMFPS 829
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLeKSEDGWWKGRnKGGKEGLIPS 47
PTZ00121 PTZ00121
MAEBL; Provisional
330-638 4.31e-10

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 64.39  E-value: 4.31e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELER----QLQRQREIEMEKEEQ 405
Cdd:PTZ00121 1572 AEEDKNMALRKAEEAKKAEEARIEEVMKLYEEEKKMKAEEAKKAEEAKIKAEELKKAEEEKkkveQLKKKEAEEKKKAEE 1651
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  406 RKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRIcdtragvtnv 485
Cdd:PTZ00121 1652 LKKAEEENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKEAEEAKKAEELKKKEAEEKKKAEEL---------- 1721
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  486 ktvidgmRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERakwEAKSKASGAALGGENAQQEQLNAAFAhkqLIINQIKDK 565
Cdd:PTZ00121 1722 -------KKAEEENKIKAEEAKKEAEEDKKKAEEAKKDE---EEKKKIAHLKKEEEKKAEEIRKEKEA---VIEEELDEE 1788
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  566 VENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLY----KEYDVQRTSVLE-------LKYNRKNETSVSSAWDT 634
Cdd:PTZ00121 1789 DEKRRMEVDKKIKDIFDNFANIIEGGKEGNLVINDSKEMEdsaiKEVADSKNMQLEeadafekHKFNKNNENGEDGNKEA 1868

                  ....
gi 442628730  635 GSSS 638
Cdd:PTZ00121 1869 DFNK 1872
SH3_9 pfam14604
Variant SH3 domain;
948-1001 4.15e-09

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 53.39  E-value: 4.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 442628730   948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVK 1001
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEESEDGWWEGIN--TGRT---GLVPANYVE 49
ClassIIa_HDAC5_Gln-rich-N cd10164
Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This ...
383-450 2.48e-05

Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This family consists of the glutamine-rich domain of histone deacetylase 5 (HDAC5). It belongs to a superfamily that consists of the glutamine-rich N-terminal helical extension to certain Class IIa histone deacetylases (HDACs), including HDAC4, HDAC5 and HDCA9; it is missing from HDAC7. This domain confers responsiveness to calcium signals and mediates interactions with transcription factors and cofactors, and it is able to repress transcription independently of the HDAC C-terminal, zinc-dependent catalytic domain. It has many intra- and inter-helical interactions which are possibly involved in reversible assembly and disassembly of proteins. HDACs regulate diverse cellular processes through enzymatic deacetylation of histone as well as non-histone proteins, in particular deacetylating N(6)-acetyl-lysine residues.


Pssm-ID: 197400 [Multi-domain]  Cd Length: 97  Bit Score: 44.04  E-value: 2.48e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  383 KQQEELERQL------------QRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:cd10164    17 KQQQQLQKQLlfaefqkqhehlTRQHEVQLQKHLKVRAELFSEQQQQEILAAKRQQELEQQRKREQQRQEELEKQRLEQQ 96
Spc7 smart00787
Spc7 kinetochore protein; This domain is found in cell division proteins which are required ...
372-538 4.96e-03

Spc7 kinetochore protein; This domain is found in cell division proteins which are required for kinetochore-spindle association.


Pssm-ID: 197874 [Multi-domain]  Cd Length: 312  Bit Score: 40.39  E-value: 4.96e-03
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    372 KREKARLEAE-----------RKQQEELERQLQRQREIEMEKEEQRKRELeakEAARKELEKQRQQeweqariaemNAQK 440
Cdd:smart00787  157 KEDYKLLMKElellnsikpklRDRKDALEEELRQLKQLEDELEDCDPTEL---DRAKEKLKKLLQE----------IMIK 223
                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    441 EREQERVLKQKAhntQLNVELSTLNEKIKELSQRIcdtrAGVTNVKTVIDGMrtqrdtSMSEMSQLKARikeqnaklLQL 520
Cdd:smart00787  224 VKKLEELEEELQ---ELESKIEDLTNKKSELNTEI----AEAEKKLEQCRGF------TFKEIEKLKEQ--------LKL 282
                           170
                    ....*....|....*...
gi 442628730    521 TQERAKWeAKSKASGAAL 538
Cdd:smart00787  283 LQSLTGW-KITKLSGNTL 299
PRK13709 PRK13709
conjugal transfer nickase/helicase TraI; Provisional
235-442 6.38e-03

conjugal transfer nickase/helicase TraI; Provisional


Pssm-ID: 237478 [Multi-domain]  Cd Length: 1747  Bit Score: 40.93  E-value: 6.38e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  235 LSDIDGDGRLNCDEFILAMFLcEKAMAGEKIPVTLPQEwvppNLRKIKSRPGSvsGVVSRPGSQPASRHASVSSqSGVGV 314
Cdd:PRK13709 1550 LRGFSGEGRVKGSEDAQFVAL-QGSRNGESLLADNMQD----GVRIARDNPDS--GVVVRIAGEGRPWNPGAIT-GGRVW 1621
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  315 VDADPTAGLPGQTSFEDKRKENYVKGQAELDRRRKiMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQR 394
Cdd:PRK13709 1622 GDIPDNSVQPGAGNGEPVTAEVLAQRQAEEAIRRE-TERRADEIVRKMAENKPDLPDGKTEQAVRDIAGQERDRAAISER 1700
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  395 QREIEMEKEEQRKRELEA-KEAARKELEKQRQQEWEQARIAEMnaQKER 442
Cdd:PRK13709 1701 EAALPESVLREPQREREAvREVARENLLRERLQQMERDMVRDL--QKEK 1747
MARTX_Nterm NF012221
MARTX multifunctional-autoprocessing repeats-in-toxin holotoxin N-terminal region; This model ...
370-550 9.67e-03

MARTX multifunctional-autoprocessing repeats-in-toxin holotoxin N-terminal region; This model describes the N-terminal 1900 amino acids of MARTX family multifunctional-autoprocessing repeats-in-toxin holotoxins, which contain both repeat regions that facilitate their entry into eukaryotic target cells, and multiple effector domains.


Pssm-ID: 467957 [Multi-domain]  Cd Length: 1848  Bit Score: 40.20  E-value: 9.67e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  370 ADKRekaRLEAERKQQ----EELERQLQRQREIEMEKEEQRKRE--LEAKEAARKELEKQRQ---QEWEQARIAEMNAQK 440
Cdd:NF012221 1569 ADRQ---RLEQEKQQQlaaiSGSQSQLESTDQNALETNGQAQRDaiLEESRAVTKELTTLAQgldALDSQATYAGESGDQ 1645
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  441 EREQ--ERVLKQKahNTQLNVELSTLNEKIKELSQRICDTRagvTNVKTVIdgmrtqrdtSMSEMSQLKArikEQNAKLL 518
Cdd:NF012221 1646 WRNPfaGGLLDRV--QEQLDDAKKISGKQLADAKQRHVDNQ---QKVKDAV---------AKSEAGVAQG---EQNQANA 1708
                         170       180       190
                  ....*....|....*....|....*....|..
gi 442628730  519 QLTQERAKWEAKSKASGAALGGENAQQEQLNA 550
Cdd:NF012221 1709 EQDIDDAKADAEKRKDDALAKQNEAQQAESDA 1740
 
Name Accession Description Interval E-value
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
184-279 1.74e-42

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 149.74  E-value: 1.74e-42
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    184 EWAVQAAQKRKYTQVFNANDRTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMAGE 263
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730    264 KIPVTLPQEWVPPNLR 279
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
7-101 1.46e-38

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 138.56  E-value: 1.46e-38
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730      7 AWAVTPRERLKYQEQFRALQP-QAGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLRGM 85
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 442628730     86 DVPKVLPPSLLSSLTG 101
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
945-1002 1.68e-31

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 117.05  E-value: 1.68e-31
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKV 1002
Cdd:cd11839     1 IAQVIAPFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVKL 58
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1029-1081 1.33e-30

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 114.44  E-value: 1.33e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11840     1 QVIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNGQTGLFPSNYVEP 53
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
783-834 2.43e-30

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 113.66  E-value: 2.43e-30
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11838     1 EYIALYPYESNEPGDLTFNAGDVILVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
678-732 1.28e-28

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 108.98  E-value: 1.28e-28
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11836     1 KYRALYAFEARNPDEISFQPGDIIQVDESQVAEPGWLAGELKGKTGWFPANYVEK 55
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
941-1003 1.15e-26

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212926  Cd Length: 65  Bit Score: 103.66  E-value: 1.15e-26
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  941 KRSEIAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKVL 1003
Cdd:cd11993     1 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLL 63
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
195-261 1.57e-24

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 97.68  E-value: 1.57e-24
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  195 YTQVFNANDRTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMA 261
Cdd:cd00052     1 YDQIFRSLDPDGDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
18-83 9.88e-24

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 95.36  E-value: 9.88e-24
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   18 YQEQFRALQPQ-AGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLR 83
Cdd:cd00052     1 YDQIFRSLDPDgDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
SH3_Intersectin2_4 cd11994
Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
945-1003 1.04e-21

Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212927  Cd Length: 59  Bit Score: 89.22  E-value: 1.04e-21
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKVL 1003
Cdd:cd11994     1 IAQVTTAYVASGVEQLSLSPGQLILILKKNSSGWWLGELQARGKKRQKGWFPASHVKLL 59
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
784-833 1.34e-21

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 88.91  E-value: 1.34e-21
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11992     2 YIALYPYSSSEPGDLTFNEGEEILVTQKDGEWWTGSIEDRTGIFPSNYVR 51
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
784-833 7.76e-21

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 86.58  E-value: 7.76e-21
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11991     2 YVAMYTYESNEQGDLTFQQGDVILVTKKDGDWWTGTVGDKTGVFPSNYVR 51
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1029-1079 1.50e-20

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 86.05  E-value: 1.50e-20
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|..
gi 442628730   1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN-GLSGLFPSNYV 1079
Cdd:smart00326    4 QVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGrGKEGLFPSNYV 55
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1029-1079 2.34e-20

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 85.42  E-value: 2.34e-20
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11996     2 QVIAMYDYTANNEDELSFSKGQLINVLNKDDPDWWQGEINGVTGLFPSNYV 52
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
1029-1078 7.22e-20

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 83.67  E-value: 7.22e-20
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGL-SGLFPSNY 1078
Cdd:cd00174     1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELNGGrEGLFPANY 51
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1029-1079 1.99e-19

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 82.69  E-value: 1.99e-19
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11995     2 QVIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNGQVGLFPSNYV 52
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
679-732 2.06e-19

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 82.74  E-value: 2.06e-19
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11987     2 YRALYPFEARSHDEITIQPGDIVMVDESQTGEPGWLGGELKGKTGWFPANYAEK 55
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
1029-1079 1.57e-17

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 77.36  E-value: 1.57e-17
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11826     1 KVVALYDYTADKDDELSFQEGDIIYVTKKNDDGWYEGVLNGVTGLFPGNYV 51
SH3_9 pfam14604
Variant SH3 domain;
1032-1079 2.55e-17

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 76.50  E-value: 2.55e-17
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 442628730  1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEESEDGWWEGINTGRTGLVPANYV 48
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
1029-1079 1.26e-16

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 74.66  E-value: 1.26e-16
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11877     1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWEGTLNGKTGWFPSNYV 51
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
676-732 2.54e-16

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 74.14  E-value: 2.54e-16
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  676 FVKYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11988     1 LVNYRALYPFEARNHDEMSFNAGDIIQVDEKTVGEPGWLYGSFQGNFGWFPCNYVEK 57
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
1032-1079 4.36e-16

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 73.22  E-value: 4.36e-16
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11827     4 ALYAYDAQDTDELSFNEGDIIEILKEDPSGWWTGRLRGKEGLFPGNYV 51
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
1032-1079 5.10e-16

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 73.15  E-value: 5.10e-16
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11823     4 ALYSYTANREDELSLQPGDIIEVHEKQDDGWWLGELNGKKGIFPATYV 51
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
780-833 8.50e-16

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 72.57  E-value: 8.50e-16
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730    780 DVEYYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGS-RTGMFPSNYVQ 833
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKsDDGWWKGRLGRgKEGLFPSNYVE 56
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
372-619 1.40e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.03  E-value: 1.40e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQE----ELERQLQRQReiemekEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERV 447
Cdd:TIGR02168  676 RREIEELEEKIEELEekiaELEKALAELR------KELEELEEELEQLRKELEELSRQISALRKDLARLEAEVEQLEERI 749
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 LKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:TIGR02168  750 AQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKALREALDELRAELTLLNEEAANLRERLESL 829
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASG-------AALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITK 600
Cdd:TIGR02168  830 ERRIAATErrledleEQIEELSEDIESLAAEIEELEELIEELESELEALLNERASLEEALALLRSELEELSEELRELESK 909
                          250
                   ....*....|....*....
gi 442628730   601 CEDLYKEYDVQRTSVLELK 619
Cdd:TIGR02168  910 RSELRRELEELREKLAQLE 928
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
1032-1079 1.40e-15

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 71.60  E-value: 1.40e-15
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11874     4 VLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGKLNGKVGVFPSNFV 51
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
1032-1079 1.55e-15

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 71.56  E-value: 1.55e-15
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11772     4 ALYDYEAQHPDELSFEEGDLLYISDKSDPNWWKATCGGKTGLIPSNYV 51
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1029-1081 2.06e-15

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 71.12  E-value: 2.06e-15
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11805     1 RVQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWKGELRGRVGIFPANYVQP 53
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
191-275 3.07e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.41  E-value: 3.07e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   191 QKRKYTQVFNANDrTRSGYLTGSQARGVLVQSKLPQVTLAQIWTLSDIDGDGRLNCDEFILAMFLCEKAMAGE--KIPVT 268
Cdd:pfam12763    8 EIKKYWEIFSGLK-PENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNiaDVPDE 86

                   ....*..
gi 442628730   269 LPQEWVP 275
Cdd:pfam12763   87 LPDWLVP 93
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
12-98 3.99e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.02  E-value: 3.99e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    12 PRERLKYQEQFRALQPQAGFVTGAQAKGFFLQSQLPPLILGQIWALADTDSDGKMNINEFSIACKLINLKLRGM--DVPK 89
Cdd:pfam12763    6 EWEIKKYWEIFSGLKPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNiaDVPD 85

                   ....*....
gi 442628730    90 VLPPSLLSS 98
Cdd:pfam12763   86 ELPDWLVPG 94
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
1031-1079 5.49e-15

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 70.14  E-value: 5.49e-15
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11959     3 VALYDYQAADDDEISFDPDDIITNIEMIDEGWWRGVCRGKYGLFPANYV 51
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
1031-1076 6.75e-15

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 69.54  E-value: 6.75e-15
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 442628730  1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN-GLSGLFPS 1076
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLEKSEDGWWKGRNKgGKEGLIPS 47
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
1029-1079 8.06e-15

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 69.59  E-value: 8.06e-15
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11964     2 KVRAIYDFEAAEDNELTFKAGDIITILDDSDPNWWKGETPQGTGLFPSNFV 52
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
1029-1081 1.23e-14

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 68.92  E-value: 1.23e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11875     1 KARVLFDYEAENEDELTLREGDIVTILSKDceDKGWWKGELNGKRGVFPDNFVEP 55
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1030-1081 1.89e-14

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 68.70  E-value: 1.89e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11950     2 VRALYDFEALEDDELGFNSGDVIEVLDSSNPSWWKGRLHGKLGLFPANYVAP 53
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
942-1001 1.91e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 68.72  E-value: 1.91e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    942 RSEIAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgRRRQIGWFPATYVK 1001
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRL----GRGKEGLFPSNYVE 56
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
783-831 2.09e-14

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 68.26  E-value: 2.09e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTI-GSRTGMFPSNY 831
Cdd:cd00174     1 YARALYDYEAQDDDELSFKKGDIITVLEKdDDGWWEGELnGGREGLFPANY 51
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
1029-1081 2.34e-14

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 68.16  E-value: 2.34e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGEL-NGLSGLFPSNYVGP 1081
Cdd:cd11837     1 TATALYPWRAKKENHLSFAKGDIITVLEQQE-MWWFGELeGGEEGWFPKSYVKE 53
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
675-731 3.67e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.56  E-value: 3.67e-14
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730    675 GFVKYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEIN-GHTGWFPESYVE 731
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITV-LEKS-DDGWWKGRLGrGKEGLFPSNYVE 56
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
1029-1079 7.53e-14

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 66.72  E-value: 7.53e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11820     2 KVRALYDFEAAEDNELTFKAGEIITVLDDSDPNWWKGSNHRGEGLFPANFV 52
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
1030-1079 1.57e-13

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 65.82  E-value: 1.57e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGL-SGLFPSNYV 1079
Cdd:cd11825     2 VKALYDYRAQRPDELSFCKHAIITNVEKEDGGWWRGDYGGKkQKWFPANYV 52
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
1029-1079 1.71e-13

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 65.80  E-value: 1.71e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGR--DEPEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11767     1 VVVALYPFTGENDEELSFEKGERLEIIEKpeDDPDWWKARnALGTTGLVPRNYV 54
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1033-1079 1.85e-13

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 65.69  E-value: 1.85e-13
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1033 LYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12057     5 LFPYEAQNEDELTIKEGDIVTLISKDciDAGWWEGELNGRRGVFPDNFV 53
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1030-1081 2.59e-13

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 65.25  E-value: 2.59e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11949     2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWKGACHGQTGMFPRNYVTP 53
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1030-1081 2.88e-13

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 65.21  E-value: 2.88e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11951     2 VQAQYDFSAEDPSQLSFRRGDIIEVLDCPDPNWWRGRISGRVGFFPRNYVHP 53
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
1030-1079 2.88e-13

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 65.22  E-value: 2.88e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL-NGLSGLFPSNYV 1079
Cdd:cd11812     2 VVALYDYTANRSDELTIHRGDIIRVLYKDNDNWWFGSLvNGQQGYFPANYV 52
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
1029-1078 3.29e-13

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 64.83  E-value: 3.29e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVL-GRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11778     1 YVEALYDYEAQGDDEISIRVGDRIAVIrGDDGSGWTYGEINGVKGLFPTSY 51
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
332-597 3.48e-13

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 74.32  E-value: 3.48e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   332 KRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKReKARLEAERKQ---QEELERQLQRQREIEMEKEEQRKR 408
Cdd:TIGR02168  232 LRLEELREELEELQEELKEAEEELEELTAELQELEEKLEELR-LEVSELEEEIeelQKELYALANEISRLEQQKQILRER 310
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   409 ------ELEAKEAARKELEKQRQQewEQARIAEMNAQKEREQERVLKQKAhntqlnvELSTLNEKIKELSQRICDTRAGV 482
Cdd:TIGR02168  311 lanlerQLEELEAQLEELESKLDE--LAEELAELEEKLEELKEELESLEA-------ELEELEAELEELESRLEELEEQL 381
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   483 TNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQE-----RAKWEAKSKASGAALGGENAQQEQLNAAFAHKQl 557
Cdd:TIGR02168  382 ETLRSKVAQLELQIASLNNEIERLEARLERLEDRRERLQQEieellKKLEEAELKELQAELEELEEELEELQEELERLE- 460
                          250       260       270       280
                   ....*....|....*....|....*....|....*....|
gi 442628730   558 iinqikDKVENISKEIESKKEDINTNDVQMSELKAELSAL 597
Cdd:TIGR02168  461 ------EALEELREELEEAEQALDAAERELAQLQARLDSL 494
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
783-833 4.10e-13

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 64.75  E-value: 4.10e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEG---EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11842     1 KAVALYDFAGEQPGDLAFQKGDIITILKKSDsqnDWWTGRIGGREGIFPANYVE 54
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1032-1079 5.48e-13

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 64.46  E-value: 5.48e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12056     6 ALFHYEGTNEDELDFKEGEIILIISKDtgEPGWWKGELNGKEGVFPDNFV 55
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
945-999 5.62e-13

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 64.41  E-value: 5.62e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakgrRRQIGWFPATY 999
Cdd:cd00174     1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELN----GGREGLFPANY 51
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1030-1079 5.64e-13

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 64.47  E-value: 5.64e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11961     2 AKALYDYDAAEDNELSFFENDKIINIEFVDDDWWLGECHGSRGLFPSNYV 51
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
342-620 7.62e-13

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 73.05  E-value: 7.62e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  342 AELDRRRKIMEDQqrkereererkereeadkREKAR-----------LEAE------RKQQEELERQLQRQREIEMEKEE 404
Cdd:COG1196   196 GELERQLEPLERQ------------------AEKAEryrelkeelkeLEAEllllklRELEAELEELEAELEELEAELEE 257
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  405 QRKrELEAKEAARKELEKQRQQewEQARIAEMNAQ---KEREQERVLKQKAHNTQlnvELSTLNEKIKELSQRICDTRAG 481
Cdd:COG1196   258 LEA-ELAELEAELEELRLELEE--LELELEEAQAEeyeLLAELARLEQDIARLEE---RRRELEERLEELEEELAELEEE 331
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  482 VTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQ 561
Cdd:COG1196   332 LEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAEEELEELAEELLEALRAAAELAAQLEELEEAEEA 411
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  562 IKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKY 620
Cdd:COG1196   412 LLERLERLEEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLELLAELLE 470
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
785-833 8.73e-13

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 63.97  E-value: 8.73e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11840     3 IALFPYTAQNEDELSFQKGDIINVLSKDdPDWWRGELNGQTGLFPSNYVE 52
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
1029-1079 8.86e-13

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 63.82  E-value: 8.86e-13
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11873     1 EVIVEFDYDAEEPDELTLKVGDIITNVKKMEEGWWEGTLNGKRGMFPDNFV 51
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
372-604 1.09e-12

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 72.66  E-value: 1.09e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKA--RLEA-----ERKQ--QEELERQ---LQRQREIEmekeeQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQ 439
Cdd:COG1196   173 RKEEAerKLEAteenlERLEdiLGELERQlepLERQAEKA-----ERYRELKEELKELEAELLLLKLRELEAELEELEAE 247
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  440 KEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDtsmsemsQLKARIKEQNAKLLQ 519
Cdd:COG1196   248 LEELEAELEELEAELAELEAELEELRLELEELELELEEAQAEEYELLAELARLEQDIA-------RLEERRRELEERLEE 320
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  520 LTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALIT 599
Cdd:COG1196   321 LEEELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAEEELEELAEELLEALRAAAELAA 400

                  ....*
gi 442628730  600 KCEDL 604
Cdd:COG1196   401 QLEEL 405
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
1029-1079 1.34e-12

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 63.08  E-value: 1.34e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDII-SVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11882     1 RARALYACKAEDESELSFEPGQIItNVQPSDEPGWLEGTLNGRTGLIPENYV 52
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
1029-1079 1.36e-12

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 63.19  E-value: 1.36e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG-ELNGLSGLFPSNYV 1079
Cdd:cd11960     1 RARALYDYQAADDTEISFDPGDIITDIEQIDEGWWRGtGPDGTYGLFPANYV 52
SH3_9 pfam14604
Variant SH3 domain;
681-731 1.37e-12

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 63.02  E-value: 1.37e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730   681 AVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITV--IEESEDGWWEGINTGRTGLVPANYVE 49
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
1032-1079 1.86e-12

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 62.76  E-value: 1.86e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11836     4 ALYAFEARNPDEISFQPGDIIQVDESQvaEPGWLAGELKGKTGWFPANYV 53
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1032-1076 3.52e-12

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 62.03  E-value: 3.52e-12
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE----WWRGELNGLSGLFPS 1076
Cdd:cd11762     4 ALYDYEAQSDEELSFPEGAIIRILRKDDNGvddgWWEGEFNGRVGVFPS 52
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
375-604 3.56e-12

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 70.86  E-value: 3.56e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   375 KARLEAERKQQEELERQLQRQREiEMEKEEQRKRELeakEAARKELEKQRQQewEQARIAEMNAQKEREQERVLKQKAHN 454
Cdd:TIGR02168  718 RKELEELSRQISALRKDLARLEA-EVEQLEERIAQL---SKELTELEAEIEE--LEERLEEAEEELAEAEAEIEELEAQI 791
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   455 TQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKAS 534
Cdd:TIGR02168  792 EQLKEELKALREALDELRAELTLLNEEAANLRERLESLERRIAATERRLEDLEEQIEELSEDIESLAAEIEELEELIEEL 871
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   535 GAALGGENAQQEQLNAAfahkqliINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDL 604
Cdd:TIGR02168  872 ESELEALLNERASLEEA-------LALLRSELEELSEELRELESKRSELRRELEELREKLAQLELRLEGL 934
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
1029-1080 3.85e-12

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 62.01  E-value: 3.85e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd11824     1 KYSVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTVERNGQKGLVPGTYLE 52
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1029-1079 4.39e-12

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 61.97  E-value: 4.39e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11781     1 KARALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYEGEHNGRVGIFPASYV 51
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1030-1079 4.96e-12

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 61.97  E-value: 4.96e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDE--PEWWR-GELNGLSGLFPSNYV 1079
Cdd:cd11904     3 VQALYPFSSSNDEELNFEKGEVMDVIEKPEndPEWWKcRKANGQVGLVPKNYV 55
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1029-1079 6.08e-12

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 61.51  E-value: 6.08e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11766     1 PAVVKFNYEAQREDELSLRKGDRVLVLEKSSDGWWRGECNGQVGWFPSNYV 51
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
1031-1081 6.13e-12

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 61.28  E-value: 6.13e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11838     3 IALYPYESNEPGDLTFNAGDVILVTKKDG-EWWTGTIGDRTGIFPSNYVRP 52
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
1030-1082 7.97e-12

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 61.17  E-value: 7.97e-12
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGPF 1082
Cdd:cd12060     4 VKARFNFKQTNEDELSVCKGDIIYVTRVEEGGWWEGTLNGKTGWFPSNYVREI 56
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1031-1079 1.00e-11

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 60.83  E-value: 1.00e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDE-PEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11804     3 VAKHDFKATAEDELSFKKGSILKVLNMEDdPNWYKAELDGKEGLIPKNYI 52
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
1031-1079 1.15e-11

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 60.62  E-value: 1.15e-11
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12073     4 VALYDYQGEGDDEISFDPQETITDIEMVDEGWWKGTCHGHRGLFPANYV 52
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
1030-1079 1.19e-11

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 60.51  E-value: 1.19e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLG-RDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11843     2 VRALYDYEGQESDELSFKAGDILTKLEeEDEQGWCKGRLDGRVGLYPANYV 52
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
331-619 1.26e-11

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 69.20  E-value: 1.26e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  331 DKRKENYVKGQAELDRRRKIMEDQQRKEReereRKEREEADKREKARLEAERKQQEELE-----RQLQRQREIEMEKEEQ 405
Cdd:COG1196   238 EAELEELEAELEELEAELEELEAELAELE----AELEELRLELEELELELEEAQAEEYEllaelARLEQDIARLEERRRE 313
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  406 RKRELEAKEAARKELEKQRQQewEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNV 485
Cdd:COG1196   314 LEERLEELEEELAELEEELEE--LEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAEEELEELAEELLEA 391
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  486 ktvidgmRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDK 565
Cdd:COG1196   392 -------LRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLEL 464
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  566 VENISKEIESKKEDINTNDVQMSELKAELSALitkcEDLYKEYDVQRTSVLELK 619
Cdd:COG1196   465 LAELLEEAALLEAALAELLEELAEAAARLLLL----LEAEADYEGFLEGVKAAL 514
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
678-731 1.31e-11

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 60.41  E-value: 1.31e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQnaEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11877     1 LVRAKFNFEGTNEDELSFDKGDIITVTQVV--EGGWWEGTLNGKTGWFPSNYVK 52
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
1027-1079 1.57e-11

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 60.41  E-value: 1.57e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1027 LDKVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11972     2 LEKVVAIYDYTKDKEDELSFQEGAIIYVIKKNDDGWYEGVMNGVTGLFPGNYV 54
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
786-833 1.58e-11

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 60.10  E-value: 1.58e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEG---EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11841     4 ALYSFEGQQPCDLSFQAGDRITVLTRTDsqfDWWEGRLRGRVGIFPANYVS 54
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
1031-1079 1.63e-11

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 60.02  E-value: 1.63e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN-GLSGLFPSNYV 1079
Cdd:cd11819     3 KALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGVNAkGQKGLFPANYV 52
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
678-729 1.80e-11

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 59.78  E-value: 1.80e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGH-TGWFPESY 729
Cdd:cd00174     1 YARALYDYEAQDDDELSFKKGDIITV-LEKD-DDGWWEGELNGGrEGLFPANY 51
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1029-1078 2.01e-11

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 60.02  E-value: 2.01e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNG---LSGLFPSNY 1078
Cdd:cd11821     1 RVRALYDCQADNDDELTFSEGEIIVVTGEEDDEWWEGHIEGdpsRRGVFPVSF 53
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
376-607 2.09e-11

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 68.56  E-value: 2.09e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   376 ARLEAERKQQEELERQL-QRQREIemekeEQRKRELEAKEAARKELEKQRQQEWE------QARIAEMNAQ--------- 439
Cdd:TIGR02169  237 RQKEAIERQLASLEEELeKLTEEI-----SELEKRLEEIEQLLEELNKKIKDLGEeeqlrvKEKIGELEAEiaslersia 311
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   440 -KEREQERVLKQKAhntQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQL-------KARIK 511
Cdd:TIGR02169  312 eKERELEDAEERLA---KLEAEIDKLLAEIEELEREIEEERKRRDKLTEEYAELKEELEDLRAELEEVdkefaetRDELK 388
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   512 EQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELK 591
Cdd:TIGR02169  389 DYREKLEKLKREINELKRELDRLQEELQRLSEELADLNAAIAGIEAKINELEEEKEDKALEIKKQEWKLEQLAADLSKYE 468
                          250
                   ....*....|....*.
gi 442628730   592 AELSALITKCEDLYKE 607
Cdd:TIGR02169  469 QELYDLKEEYDRVEKE 484
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
1032-1079 2.14e-11

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 59.97  E-value: 2.14e-11
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11803     5 ALYDFEPENEGELGFKEGDIITLTNQIDENWYEGMVNGQSGFFPVNYV 52
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
1030-1078 2.37e-11

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 59.52  E-value: 2.37e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNY 1078
Cdd:cd11845     2 YVALYDYEARTDDDLSFKKGDRLQILDDSDGDWWLARHlsTGKEGYIPSNY 52
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
379-621 2.53e-11

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 67.74  E-value: 2.53e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   379 EAERKQQE--ELERQLQR-QREIEMEKEEQRK---------RELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQER 446
Cdd:TIGR04523  233 NIEKKQQEinEKTTEISNtQTQLNQLKDEQNKikkqlsekqKELEQNNKKIKELEKQLNQL--KSEISDLNNQKEQDWNK 310
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   447 VLK-----QKAHNTQLNVELSTLNEKIKELSQRICDtragvtnvktvidgMRTQRDTSMSEMSQLKARIKEQNAKLLQLT 521
Cdd:TIGR04523  311 ELKselknQEKKLEEIQNQISQNNKIISQLNEQISQ--------------LKKELTNSESENSEKQRELEEKQNEIEKLK 376
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   522 QERA--KWEAKS-KASGAALGGENAQQEQLNaafahkQLIINQIKDKVEN---ISKEIESKKEDINTNDVQMSELKAELS 595
Cdd:TIGR04523  377 KENQsyKQEIKNlESQINDLESKIQNQEKLN------QQKDEQIKKLQQEkelLEKEIERLKETIIKNNSEIKDLTNQDS 450
                          250       260
                   ....*....|....*....|....*...
gi 442628730   596 ALITKCEDL--YKEYDVQRTSVLELKYN 621
Cdd:TIGR04523  451 VKELIIKNLdnTRESLETQLKVLSRSIN 478
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
786-834 2.59e-11

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 59.74  E-value: 2.59e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11827     4 ALYAYDAQDTDELSFNEGDIIEILKEDPSgWWTGRLRGKEGLFPGNYVEK 53
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
1030-1079 2.75e-11

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 59.71  E-value: 2.75e-11
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGR--DEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11841     2 VTALYSFEGQQPCDLSFQAGDRITVLTRtdSQFDWWEGRLRGRVGIFPANYV 53
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1033-1079 3.40e-11

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 59.21  E-value: 3.40e-11
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 442628730 1033 LYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12054     6 LFEYVPQNEDELELKVGDIIDINEEVEEGWWSGTLNGKSGLFPSNFV 52
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
784-832 3.41e-11

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 59.24  E-value: 3.41e-11
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gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11772     2 FRALYDYEAQHPDELSFEEGDLLYISdKSDPNWWKATCGGKTGLIPSNYV 51
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
1030-1079 3.47e-11

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 59.31  E-value: 3.47e-11
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12061     2 VRAKFNFQQTNEDELSFSKGDVIHVTRVEEGGWWEGTHNGRTGWFPSNYV 51
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
786-834 3.69e-11

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 59.18  E-value: 3.69e-11
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gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11805     4 ALYDFNPQEPGELEFRRGDIITVLDSSDPdWWKGELRGRVGIFPANYVQP 53
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1031-1079 4.61e-11

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 58.75  E-value: 4.61e-11
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gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12052     3 IVEFDYKAQHEDELTITVGDIITKIKKDDGGWWEGEIKGRRGLFPDNFV 51
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
1029-1079 4.73e-11

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 58.88  E-value: 4.73e-11
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11963     3 KVRALYDFEAVEDNELTFKHGEIIIVLDDSDANWWKGENHRGVGLFPSNFV 53
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1032-1079 4.78e-11

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 58.85  E-value: 4.78e-11
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gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12055     4 VAFSYLPQNEDELELKVGDIIEVVGEVEEGWWEGVLNGKTGMFPSNFI 51
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1030-1078 5.77e-11

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 58.64  E-value: 5.77e-11
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11817     2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAEWSRGRLNGREGIFPRAF 50
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
341-648 7.76e-11

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 66.30  E-value: 7.76e-11
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gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKarlEAERKQQEELERQLQRQREIE---MEKEEQRKRELEAKEAAR 417
Cdd:pfam17380  326 QAEMDRQAAIYAEQERMAMERERELERIRQEERKR---ELERIRQEEIAMEISRMRELErlqMERQQKNERVRQELEAAR 402
                           90       100       110       120       130       140       150       160
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gi 442628730   418 KE--LEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGvtnvktviDGMRTQ 495
Cdd:pfam17380  403 KVkiLEEERQRKIQQQKVEMEQIRAEQEEARQREVRRLEEERAREMERVRLEEQERQQQVERLRQQ--------EEERKR 474
                          170       180       190       200       210       220       230       240
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gi 442628730   496 RDTSMSEMSQLKARIKEQNAKLLQLTQE---RAKWEAKSKASGAalggENAQQEQLNAAFAHKQliiNQIKDKVENISKE 572
Cdd:pfam17380  475 KKLELEKEKRDRKRAEEQRRKILEKELEerkQAMIEEERKRKLL----EKEMEERQKAIYEEER---RREAEEERRKQQE 547
                          250       260       270       280       290       300       310       320
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gi 442628730   573 IESKKEdINTNDVQMSELKAELSAL---------ITKCEDLYKEYDV--QRTSVLELKYNRKNE-------------TSV 628
Cdd:pfam17380  548 MEERRR-IQEQMRKATEERSRLEAMereremmrqIVESEKARAEYEAttPITTIKPIYRPRISEyqppdveshmirfTTQ 626
                          330       340
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gi 442628730   629 SSAWDTGSSSAWEETGTTVT 648
Cdd:pfam17380  627 SPEWATPSPATWNPEWNTVT 646
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
680-731 7.76e-11

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 58.46  E-value: 7.76e-11
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gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11882     3 RALYACKAEDESELSFEPGQIIT-NVQPSDEPGWLEGTLNGRTGLIPENYVE 53
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
1033-1081 9.03e-11

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 58.25  E-value: 9.03e-11
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gi 442628730 1033 LYPYKAQNDDELSFDKDDIISVLgRDEPE---WWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12142     5 LFDYNPVAPDELALKKGDVIEVI-SKETEdegWWEGELNGRRGFFPDNFVMP 55
SH3_srGAP4 cd11956
Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, ...
1031-1079 9.50e-11

Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, is highly expressed in hematopoietic cells and may play a role in lymphocyte differentiation. It is able to stimulate the GTPase activity of Rac1, Cdc42, and RhoA. In the nervous system, srGAP4 has been detected in differentiating neurites and may be involved in axon and dendritic growth. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212889 [Multi-domain]  Cd Length: 55  Bit Score: 57.93  E-value: 9.50e-11
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gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11956     5 VACFDYTGRTAQELSFKRGDVLLLHSKASSDWWRGEHNGMRGLIPHKYI 53
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
1030-1079 1.06e-10

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 58.08  E-value: 1.06e-10
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGL-FPSNYV 1079
Cdd:cd11970     6 VKALFDYKAQREDELTFTKNAIIQNVEKQEGGWWRGDYGGKKQLwFPSNYV 56
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1032-1079 1.07e-10

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 57.76  E-value: 1.07e-10
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gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11786     4 ALYNYEGKEPGDLSFKKGDIILLRKRIDENWYHGECNGKQGFFPASYV 51
SH3_ASPP cd11807
Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of ...
1030-1080 1.12e-10

Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of proteins bind to important regulators of apoptosis (p53, Bcl-2, and RelA) and cell growth (APCL, PP1). They share similarity at their C-termini, where they harbor a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain. Vertebrates contain three members of the family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2 activate the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73), while iASPP is an oncoprotein that specifically inhibits p53-induced apoptosis. The expression of ASPP proteins is altered in tumors; ASPP1 and ASPP2 are downregulated whereas iASPP is upregulated is some cancer types. ASPP proteins also bind and regulate protein phosphatase 1 (PP1), and this binding is competitive with p53 binding. The SH3 domain and the ANK repeats of ASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212741 [Multi-domain]  Cd Length: 57  Bit Score: 57.77  E-value: 1.12e-10
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGR---DEPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd11807     3 VYALFDYEAENGDELSFREGDELTVLRKgddDETEWWWARLNDKEGYVPRNLLG 56
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
1029-1079 1.15e-10

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 58.11  E-value: 1.15e-10
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11971     1 KVVAIYDYSKDKDDELSFMEGAIIYVIKKNDDGWYEGVCNGVTGLFPGNYV 51
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
945-1001 1.25e-10

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 57.71  E-value: 1.25e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd11877     1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWEGTLNGK-----TGWFPSNYVK 52
SH3_Lyn cd12004
Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of ...
785-836 1.31e-10

Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lyn is expressed in B lymphocytes and myeloid cells. It exhibits both positive and negative regulatory roles in B cell receptor (BCR) signaling. Lyn, as well as Fyn and Blk, promotes B cell activation by phosphorylating ITAMs (immunoreceptor tyr activation motifs) in CD19 and in Ig components of BCR. It negatively regulates signaling by its unique ability to phosphorylate ITIMs (immunoreceptor tyr inhibition motifs) in cell surface receptors like CD22 and CD5. Lyn also plays an important role in G-CSF receptor signaling by phosphorylating a variety of adaptor molecules. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212937 [Multi-domain]  Cd Length: 56  Bit Score: 57.70  E-value: 1.31e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGT--IGSRTGMFPSNYVQKAD 836
Cdd:cd12004     3 VALYPYDGIHEDDLSFKKGEKLKVIEEHGEWWKARslTTKKEGFIPSNYVAKVN 56
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
785-833 1.37e-10

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 57.33  E-value: 1.37e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11826     3 VALYDYTADKDDELSFQEGDIIYVTKKNDDgWYEGVLNGVTGLFPGNYVE 52
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
372-597 1.61e-10

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 65.47  E-value: 1.61e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRqqeweqARIAEMNAQKEREQERVLKQK 451
Cdd:TIGR02169  712 SDASRKIGEIEKEIEQLEQEEEKLKERLEELEEDLSSLEQEIENVKSELKELE------ARIEELEEDLHKLEEALNDLE 785
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   452 AHNT-----QLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAK 526
Cdd:TIGR02169  786 ARLShsripEIQAELSKLEEEVSRIEARLREIEQKLNRLTLEKEYLEKEIQELQEQRIDLKEQIKSIEKEIENLNGKKEE 865
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730   527 WEAKSKASGAALggenaqqEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSAL 597
Cdd:TIGR02169  866 LEEELEELEAAL-------RDLESRLGDLKKERDELEAQLRELERKIEELEAQIEKKRKRLSELKAKLEAL 929
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1031-1079 1.64e-10

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 57.42  E-value: 1.64e-10
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11816     3 VARFDFEGEQEDELSFSEGDVITLKEYVGEEWAKGELNGKIGIFPLNFV 51
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1032-1078 1.72e-10

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 57.11  E-value: 1.72e-10
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11818     4 ALYDFTGENEDELSFKAGDIITELESIDEEWMSGELRGKSGIFPKNF 50
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
1032-1079 1.86e-10

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 57.29  E-value: 1.86e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1032 ALYPYKAQNDD-ELSFDKDDIISVLGRDEP-----EWWRGEL-NGLSGLFPSNYV 1079
Cdd:cd11771     4 ALYDFTPENPEmELSLKKGDIVAVLSKTDPlgrdsEWWKGRTrDGRIGWFPSNYV 58
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
1029-1081 1.93e-10

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 57.12  E-value: 1.93e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12046     1 QVVALFSYEASQPEDLEFQKGDVILVLSKVNEDWLEGQCKGKIGIFPSAFVED 53
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
376-619 2.00e-10

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 65.08  E-value: 2.00e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   376 ARLEAERKQQEELERQLQR-QREIEMEKEEQRKRE--LEAKEAARKELEKQ---RQQEWE--QARIAEMNAQKEREQERV 447
Cdd:TIGR02168  232 LRLEELREELEELQEELKEaEEELEELTAELQELEekLEELRLEVSELEEEieeLQKELYalANEISRLEQQKQILRERL 311
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 lkqkahnTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLtqeRAKW 527
Cdd:TIGR02168  312 -------ANLERQLEELEAQLEELESKLDELAEELAELEEKLEELKEELESLEAELEELEAELEELESRLEEL---EEQL 381
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASGAALGGENAQQEQLNAAFAHKQliinQIKDKVENISKEIESKKEDINTNdvQMSELKAELSALITKCEDLYKE 607
Cdd:TIGR02168  382 ETLRSKVAQLELQIASLNNEIERLEARLE----RLEDRRERLQQEIEELLKKLEEA--ELKELQAELEELEEELEELQEE 455
                          250
                   ....*....|..
gi 442628730   608 YDVQRTSVLELK 619
Cdd:TIGR02168  456 LERLEEALEELR 467
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
785-833 2.32e-10

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 56.91  E-value: 2.32e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11996     4 IAMYDYTANNEDELSFSKGQLINVLNKDDpDWWQGEINGVTGLFPSNYVK 53
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
1029-1079 2.43e-10

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 56.84  E-value: 2.43e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:pfam07653    1 YGRVIFDYVGTDKNGLTLKKGDVVKVLGKDNDGWWEGETGGRVGLVPSTAV 51
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
783-834 2.78e-10

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 56.74  E-value: 2.78e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11833     1 TYVALYKFKPQENEDLEMRPGDKITLLDDSNEdWWKGKIEDRVGFFPANFVQR 53
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
951-1002 2.85e-10

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 56.58  E-value: 2.85e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  951 PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgrRRQIGWFPATYVKV 1002
Cdd:cd11823     7 SYTANREDELSLQPGDIIEVHEKQDDGWWLGEL-----NGKKGIFPATYVEE 53
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
784-833 2.88e-10

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 56.75  E-value: 2.88e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE------WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11876     2 WTALFDYDARGEDELTLRRGQPVEVLSKDAAvsgdegWWTGKIGDKVGIFPSNYVA 57
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
1029-1079 3.00e-10

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 56.66  E-value: 3.00e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEP--EWWRGELNGLSGLFPSNYV 1079
Cdd:cd11842     1 KAVALYDFAGEQPGDLAFQKGDIITILKKSDSqnDWWTGRIGGREGIFPANYV 53
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
783-832 3.32e-10

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 56.46  E-value: 3.32e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYV 832
Cdd:cd11986     1 YFVALYRFKALEKDDLDFHPGERITVIDDSNEeWWRGKIGEKTGYFPMNFI 51
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
372-609 3.38e-10

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 64.70  E-value: 3.38e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQ---------EELERQLQRQREIEMEKEE-----QRKRELEAKEAARKELEKQRQQEWEQARIAEMN 437
Cdd:TIGR02169  171 KKEKALEELEEVEEnierldliiDEKRQQLERLRREREKAERyqallKEKREYEGYELLKEKEALERQKEAIERQLASLE 250
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   438 AQKEREQERVLKQKAHNTQLNVELSTLNEKIKEL-SQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKeqnak 516
Cdd:TIGR02169  251 EELEKLTEEISELEKRLEEIEQLLEELNKKIKDLgEEEQLRVKEKIGELEAEIASLERSIAEKERELEDAEERLA----- 325
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   517 llQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKqliinqiKDKVENISKEIESKKEDINTNDVQMSELKAELSA 596
Cdd:TIGR02169  326 --KLEAEIDKLLAEIEELEREIEEERKRRDKLTEEYAEL-------KEELEDLRAELEEVDKEFAETRDELKDYREKLEK 396
                          250
                   ....*....|...
gi 442628730   597 LITKCEDLYKEYD 609
Cdd:TIGR02169  397 LKREINELKRELD 409
SH3_Sla1p_1 cd11773
First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1032-1078 3.59e-10

First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212707 [Multi-domain]  Cd Length: 57  Bit Score: 56.66  E-value: 3.59e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS-------GLFPSNY 1078
Cdd:cd11773     4 ALYDYEPQTEDELTIQEDDILYLLEKSDDDWWKVKLKVNSsdddepvGLVPATY 57
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
1031-1081 3.91e-10

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 56.11  E-value: 3.91e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11856     3 VAIADYEAQGDDEISLQEGEVVEVLEKNDSGWWYVRKGDKEGWVPASYLEP 53
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
785-829 4.20e-10

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 56.06  E-value: 4.20e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 442628730   785 IAAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGT-IGSRTGMFPS 829
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLeKSEDGWWKGRnKGGKEGLIPS 47
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
679-731 4.26e-10

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 56.11  E-value: 4.26e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11803     3 CRALYDFEPENEGELGFKEGDIIT--LTNQIDENWYEGMVNGQSGFFPVNYVE 53
PTZ00121 PTZ00121
MAEBL; Provisional
330-638 4.31e-10

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 64.39  E-value: 4.31e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELER----QLQRQREIEMEKEEQ 405
Cdd:PTZ00121 1572 AEEDKNMALRKAEEAKKAEEARIEEVMKLYEEEKKMKAEEAKKAEEAKIKAEELKKAEEEKkkveQLKKKEAEEKKKAEE 1651
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  406 RKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRIcdtragvtnv 485
Cdd:PTZ00121 1652 LKKAEEENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKEAEEAKKAEELKKKEAEEKKKAEEL---------- 1721
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  486 ktvidgmRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERakwEAKSKASGAALGGENAQQEQLNAAFAhkqLIINQIKDK 565
Cdd:PTZ00121 1722 -------KKAEEENKIKAEEAKKEAEEDKKKAEEAKKDE---EEKKKIAHLKKEEEKKAEEIRKEKEA---VIEEELDEE 1788
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  566 VENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLY----KEYDVQRTSVLE-------LKYNRKNETSVSSAWDT 634
Cdd:PTZ00121 1789 DEKRRMEVDKKIKDIFDNFANIIEGGKEGNLVINDSKEMEdsaiKEVADSKNMQLEeadafekHKFNKNNENGEDGNKEA 1868

                  ....
gi 442628730  635 GSSS 638
Cdd:PTZ00121 1869 DFNK 1872
SH3_9 pfam14604
Variant SH3 domain;
786-833 5.21e-10

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 55.70  E-value: 5.21e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 442628730   786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEEsEDGWWEGINTGRTGLVPANYVE 49
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
678-731 5.35e-10

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 55.93  E-value: 5.35e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd12142     1 YCRVLFDYNPVAPDELALKKGDVIEVISKETEDEGWWEGELNGRRGFFPDNFVM 54
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
786-832 5.43e-10

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 55.78  E-value: 5.43e-10
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11877     4 AKFNFEGTNEDELSFDKGDIITVTQVvEGGWWEGTLNGKTGWFPSNYV 51
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
330-597 5.44e-10

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 63.92  E-value: 5.44e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRE 409
Cdd:TIGR02168  697 EKALAELRKELEELEEELEQLRKELEELSRQISALRKDLARLEAEVEQLEERIAQLSKELTELEAEIEELEERLEEAEEE 776
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   410 LEAKEAARKELEKQRQQ---EWEQAR--IAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTN 484
Cdd:TIGR02168  777 LAEAEAEIEELEAQIEQlkeELKALReaLDELRAELTLLNEEAANLRERLESLERRIAATERRLEDLEEQIEELSEDIES 856
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   485 VKTVIDGMRTQRDTSMSE-------MSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQL 557
Cdd:TIGR02168  857 LAAEIEELEELIEELESEleallneRASLEEALALLRSELEELSEELRELESKRSELRRELEELREKLAQLELRLEGLEV 936
                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....*...
gi 442628730   558 IINQIKDKV--------ENISKEIESKKEDINTNDVQMSELKAELSAL 597
Cdd:TIGR02168  937 RIDNLQERLseeysltlEEAEALENKIEDDEEEARRRLKRLENKIKEL 984
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
326-551 5.92e-10

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 63.80  E-value: 5.92e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  326 QTSFEDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQ 405
Cdd:COG1196   280 ELELEEAQAEEYELLAELARLEQDIARLEERRRELEERLEELEEELAELEEELEELEEELEELEEELEEAEEELEEAEAE 359
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  406 RKRELEAKEAARKELEkQRQQEWEQARIAEMNAQKEREQERvlkqkAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNV 485
Cdd:COG1196   360 LAEAEEALLEAEAELA-EAEEELEELAEELLEALRAAAELA-----AQLEELEEAEEALLERLERLEEELEELEEALAEL 433
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  486 KTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAA 551
Cdd:COG1196   434 EEEEEEEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLEA 499
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
784-834 6.17e-10

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 55.72  E-value: 6.17e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11985     2 YVALYKFLPQENNDLPLQPGDRVMVVDDSNEdWWKGKSGDRVGFFPANFVQR 53
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
372-619 6.33e-10

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 63.50  E-value: 6.33e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAErkqQEELERQL-QRQREIEMEKEE------------QRKRELEAKEAARKELEKQRQQEWEQARIAemNA 438
Cdd:TIGR04523  348 KKELTNSESE---NSEKQRELeEKQNEIEKLKKEnqsykqeiknleSQINDLESKIQNQEKLNQQKDEQIKKLQQE--KE 422
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   439 QKEREQERVLKQkahNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLL 518
Cdd:TIGR04523  423 LLEKEIERLKET---IIKNNSEIKDLTNQDSVKELIIKNLDNTRESLETQLKVLSRSINKIKQNLEQKQKELKSKEKELK 499
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   519 QLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENI----------------SKEIESKKEDINT 582
Cdd:TIGR04523  500 KLNEEKKELEEKVKDLTKKISSLKEKIEKLESEKKEKESKISDLEDELNKDdfelkkenlekeidekNKEIEELKQTQKS 579
                          250       260       270
                   ....*....|....*....|....*....|....*..
gi 442628730   583 NDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELK 619
Cdd:TIGR04523  580 LKKKQEEKQELIDQKEKEKKDLIKEIEEKEKKISSLE 616
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
945-999 6.64e-10

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 55.75  E-value: 6.64e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATY 999
Cdd:cd11883     1 VVVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSGKVKRGWFPSNY 55
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
681-731 6.93e-10

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 55.50  E-value: 6.93e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11840     4 ALFPYTAQNEDELSFQKGDIINV-LSKD-DPDWWRGELNGQTGLFPSNYVE 52
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
681-731 7.01e-10

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 55.43  E-value: 7.01e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQnaEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11823     4 ALYSYTANREDELSLQPGDIIEVHEKQ--DDGWWLGELNGKKGIFPATYVE 52
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
1032-1079 7.21e-10

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 55.44  E-value: 7.21e-10
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11796     4 VLQDLSAQLDEELDLREGDVVTITGILDKGWFRGELNGRRGIFPEGFV 51
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
1026-1082 7.60e-10

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 55.80  E-value: 7.60e-10
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1026 ILDKVIALYPYKAQNDDELSFDKDDIISVLGRDEPE-----WWRG--ELNGLSGLFPSNYVGPF 1082
Cdd:cd11790     1 VLYKVRATHDYTAEDTDELTFEKGDVILVIPFDDPEeqdegWLMGvkESTGCRGVFPENFTERI 64
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
1030-1081 8.36e-10

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 55.41  E-value: 8.36e-10
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGR---DEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11884     2 VVAVRAYITRDQTLLSFHKGDVIKLLPKegpLDPGWLFGTLDGRSGAFPKEYVQP 56
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
341-540 8.53e-10

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 63.03  E-value: 8.53e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKEL 420
Cdd:COG1196   324 ELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAEEELEELAEELLEALRAAAELAAQLE 403
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  421 EKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSM 500
Cdd:COG1196   404 ELEEAEEALLERLERLEEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELL 483
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|
gi 442628730  501 SEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGG 540
Cdd:COG1196   484 EELAEAAARLLLLLEAEADYEGFLEGVKAALLLAGLRGLA 523
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
329-619 9.26e-10

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 62.77  E-value: 9.26e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  329 FEDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKarLEAERKQQEELE--RQLQRQREIEMEKEEQR 406
Cdd:PRK03918  176 RRIERLEKFIKRTENIEELIKEKEKELEEVLREINEISSELPELREE--LEKLEKEVKELEelKEEIEELEKELESLEGS 253
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  407 KRELEAKeaaRKELEKQRqqEWEQARIAEMNAQKEREQErvLKQKAhntQLNVELSTLNEKIKELSQRIcdtRAGVTNVK 486
Cdd:PRK03918  254 KRKLEEK---IRELEERI--EELKKEIEELEEKVKELKE--LKEKA---EEYIKLSEFYEEYLDELREI---EKRLSRLE 320
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  487 TVIDGMRTQrdtsMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALggenAQQEQLNaafAHKQLIINQIKDKV 566
Cdd:PRK03918  321 EEINGIEER----IKELEEKEERLEELKKKLKELEKRLEELEERHELYEEAK----AKKEELE---RLKKRLTGLTPEKL 389
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  567 ENISKEIESKKEDINTndvQMSELKAELSALITKCEDLykeydvqRTSVLELK 619
Cdd:PRK03918  390 EKELEELEKAKEEIEE---EISKITARIGELKKEIKEL-------KKAIEELK 432
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
1030-1081 1.03e-09

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 55.09  E-value: 1.03e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE--LNGLSGLFPSNYVGP 1081
Cdd:cd11783     2 YVALYPYKPQKPDELELRKGEMYTVTEKCQDGWFKGTslRTGQSGVFPGNYVQP 55
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1031-1081 1.06e-09

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 55.02  E-value: 1.06e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11992     3 IALYPYSSSEPGDLTFNEGEEILVTQKDG-EWWTGSIEDRTGIFPSNYVRP 52
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
1031-1079 1.09e-09

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 55.10  E-value: 1.09e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11809     3 TAQFDYTGRSERELSFKKGDSLTLYRQVSDDWWRGQLNGQDGLVPHKYI 51
SH3_ASPP1 cd11954
Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates ...
1030-1080 1.09e-09

Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). In addition, it functions in the cytoplasm to regulate the nuclear localization of the transcriptional cofactors YAP and TAZ by inihibiting their phosphorylation; YAP and TAZ are important regulators of cell expansion, differentiation, migration, and invasion. ASPP1 is downregulated in breast tumors expressing wild-type p53. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP1 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212887 [Multi-domain]  Cd Length: 57  Bit Score: 55.03  E-value: 1.09e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRD---EPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd11954     3 VYALWDYEAQNADELSFQEGDAITILRRKddsETEWWWARLNDKEGYVPKNLLG 56
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
1030-1078 1.16e-09

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 54.98  E-value: 1.16e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS-----GLFPSNY 1078
Cdd:cd11883     2 VVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSgkvkrGWFPSNY 55
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
946-1002 1.18e-09

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 55.04  E-value: 1.18e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGElqakgRRRQIGWFPATYVKV 1002
Cdd:cd11781     2 ARALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYEGE-----HNGRVGIFPASYVEI 53
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
681-732 1.37e-09

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 54.94  E-value: 1.37e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11830     4 ARYDFCARDMRELSLKEGDVVKI-YNKKGQQGWWRGEINGRIGWFPSTYVEE 54
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
786-834 1.39e-09

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 54.69  E-value: 1.39e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12061     4 AKFNFQQTNEDELSFSKGDVIHVTRVEeGGWWEGTHNGRTGWFPSNYVRE 53
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
1032-1081 1.46e-09

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 54.77  E-value: 1.46e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD-----EPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12059     4 AVFDYEASAEDELTLRRGDRVEVLSKDsavsgDEGWWTGKINDRVGIFPSNYVTS 58
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
678-733 1.69e-09

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 54.52  E-value: 1.69e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730   678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYVEKL 733
Cdd:pfam07653    1 YGRVIFDYVGTDKNGLTLKKGDVVKV-LGKDND-GWWEGETGGRVGLVPSTAVEEI 54
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
330-513 1.71e-09

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 62.06  E-value: 1.71e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   330 EDKRKENYVKGQAELDRRRKIMED------QQRKEREERERKEREEADKREKARLEAERK------QQEELERQLQRQRE 397
Cdd:pfam17380  386 ERQQKNERVRQELEAARKVKILEEerqrkiQQQKVEMEQIRAEQEEARQREVRRLEEERAremervRLEEQERQQQVERL 465
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   398 IEMEKEEQRKR-ELEAKEAARKELEKQRQ-------QEWEQARIAEMNAQKEREQERVLKQKA---HNTQLNVELSTLNE 466
Cdd:pfam17380  466 RQQEEERKRKKlELEKEKRDRKRAEEQRRkilekelEERKQAMIEEERKRKLLEKEMEERQKAiyeEERRREAEEERRKQ 545
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*..
gi 442628730   467 KIKELSQRICDTRAGVTNVKTVIDGMRTQRDTsmseMSQLKARIKEQ 513
Cdd:pfam17380  546 QEMEERRRIQEQMRKATEERSRLEAMEREREM----MRQIVESEKAR 588
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
1030-1076 1.76e-09

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 54.56  E-value: 1.76e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPE---WWRGELNGLSGLFPS 1076
Cdd:cd11894     2 VKALYDYEGQTDDELSFPEGAIIRILNKENQDddgFWEGEFNGRIGVFPS 51
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
372-550 1.86e-09

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 61.88  E-value: 1.86e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQR-KRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:COG1196   340 EELEEELEEAEEELEEAEAELAEAEEALLEAEAELaEAEEELEELAEELLEALRAAAELAAQLEELEEAEEALLERLERL 419
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  451 KAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLT-QERAKWEA 529
Cdd:COG1196   420 EEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAaRLLLLLEA 499
                         170       180
                  ....*....|....*....|.
gi 442628730  530 KSKASGAALGGENAQQEQLNA 550
Cdd:COG1196   500 EADYEGFLEGVKAALLLAGLR 520
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
1032-1081 1.87e-09

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 54.44  E-value: 1.87e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD-----EPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11876     4 ALFDYDARGEDELTLRRGQPVEVLSKDaavsgDEGWWTGKIGDKVGIFPSNYVAP 58
SH3_Blk cd12009
Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of ...
783-832 1.92e-09

Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. It is expressed specifically in B-cells and is involved in pre-BCR (B-cell receptor) signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212942 [Multi-domain]  Cd Length: 54  Bit Score: 54.44  E-value: 1.92e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGT--IGSRTGMFPSNYV 832
Cdd:cd12009     1 CVIAQYDFVPSNERDLQLKKGEKLQVLKSDGEWWLAKslTTGKEGYIPSNYV 52
RIB43A pfam05914
RIB43A; This family consists of several RIB43A-like eukaryotic proteins. Ciliary and flagellar ...
378-463 1.93e-09

RIB43A; This family consists of several RIB43A-like eukaryotic proteins. Ciliary and flagellar microtubules contain a specialized set of protofilaments, termed ribbons, that are composed of tubulin and several associated proteins. RIB43A was first characterized in the unicellular biflagellate, Chlamydomonas reinhardtii although highly related sequences are present in several higher eukaryotes including humans. The function of this protein is unknown although the structure of RIB43A and its association with the specialized protofilament ribbons and with basal bodies is relevant to the proposed role of ribbons in forming and stabilising doublet and triplet microtubules and in organizing their three-dimensional structure. Human RIB43A homologs could represent a structural requirement in centriole replication in dividing cells.


Pssm-ID: 461780 [Multi-domain]  Cd Length: 372  Bit Score: 60.68  E-value: 1.93e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   378 LEAERKQQEE--LERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREqervlkQKAHNT 455
Cdd:pfam05914  275 LKEIRKEQEQqrEEKERRREEEKQRDAEWDRQRLELARAALLLEREQQRLRRELRRQLDEENLQLAQE------QKARQE 348

                   ....*...
gi 442628730   456 QLNVELST 463
Cdd:pfam05914  349 YLNKEVYT 356
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
681-731 1.94e-09

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 54.25  E-value: 1.94e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDII-LVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11884     4 AVRAYITRDQTLLSFHKGDVIkLLPKEGPLDPGWLFGTLDGRSGAFPKEYVQ 55
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1029-1079 2.05e-09

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 54.28  E-value: 2.05e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11990     1 KAQALCSWTAKKDNHLNFSKNDIITVLEQQE-NWWFGEVHGGRGWFPKSYV 50
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1032-1079 2.15e-09

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 54.49  E-value: 2.15e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11988     6 ALYPFEARNHDEMSFNAGDIIQVDEKTvgEPGWLYGSFQGNFGWFPCNYV 55
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
946-1002 2.28e-09

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 54.28  E-value: 2.28e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKT--DSGWWEGELQakGRRrqiGWFPATYVKV 1002
Cdd:cd11875     2 ARVLFDYEAENEDELTLREGDIVTILSKDceDKGWWKGELN--GKR---GVFPDNFVEP 55
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1029-1079 2.34e-09

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 54.26  E-value: 2.34e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRD-EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11946     2 EAIAKYDFKATADDELSFKRGDILKVLNEEcDQNWYKAELNGKDGFIPKNYI 53
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
681-732 2.39e-09

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 54.26  E-value: 2.39e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEpGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11978     5 ARYDFCARDMRELSLLKGDVVKIYTKMSTN-GWWRGEVNGRVGWFPSTYVEE 55
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
1030-1081 2.59e-09

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 53.93  E-value: 2.59e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11806     2 YVAIADFVATDDSQLSFESGDKLLVLRKPSVDWWWAEHNGCCGYIPASHLHQ 53
SH3_SGSM3 cd11813
Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called ...
1032-1079 2.78e-09

Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called Merlin-associated protein (MAP), RUN and SH3 domain-containing protein (RUSC3), RUN and TBC1 domain-containing protein 3 (RUTBC3), Rab GTPase-activating protein 5 (RabGAP5), or Rab GAP-like protein (RabGAPLP). It is expressed ubiquitously and functions as a regulator of small G protein RAP- and RAB-mediated neuronal signaling. It is involved in modulating NGF-mediated neurite outgrowth and differentiation. It also interacts with the tumor suppressor merlin and may play a role in the merlin-associated suppression of cell growth. SGSM3 contains TBC, SH3, and RUN domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212747  Cd Length: 53  Bit Score: 54.04  E-value: 2.78e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11813     4 ALLDFERHDDDELGFRKNDIITIISQKDEHCWVGELNGLRGWFPAKFV 51
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
947-1000 3.03e-09

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 54.01  E-value: 3.03e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKT--DSGWWEGELQakGRRrqiGWFPATYV 1000
Cdd:cd12142     3 RVLFDYNPVAPDELALKKGDVIEVISKEteDEGWWEGELN--GRR---GFFPDNFV 53
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1032-1079 3.31e-09

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 53.57  E-value: 3.31e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11989     4 ALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYV 50
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
786-833 3.31e-09

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 53.52  E-value: 3.31e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11786     4 ALYNYEGKEPGDLSFKKGDIILLRKRIDEnWYHGECNGKQGFFPASYVQ 52
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
1032-1081 3.51e-09

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 53.79  E-value: 3.51e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD-----EPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12058     4 ALYDYEASGEDELSLRRGDVVEVLSQDaavsgDDGWWAGKIRHRLGIFPANYVTR 58
CCDC66 pfam15236
Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil ...
305-456 3.62e-09

Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil domain-containing protein 66 (CCDC) refers to a protein domain found in eukaryotes, and is approximately 160 amino acids in length. CCDC66 protein is detected mainly in the inner segments of photoreceptors in many vertebrates including mice and humans. It has been found in dogs, that a mutation in the CCDC66 gene causes generalized progressive retinal atrophy (gPRA). This shows that the protein encoded for by this gene is vital for healthy vision and guards against photoreceptor cell degeneration. The structure of CCDC66 proteins includes a heptad repeat pattern which contains at least one coiled-coil domain. There are at least two or more alpha-helices which form a cable-like structure.


Pssm-ID: 434558 [Multi-domain]  Cd Length: 154  Bit Score: 56.73  E-value: 3.62e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   305 SVSSQSGVGVVDADPTaglpgQTSFEDKRKENYVKGQ------AEL----DRRRKIMEDQQRKEREErerkereeADKRE 374
Cdd:pfam15236    4 KVVSPDDVESLQSSSR-----MSAMTNSQKTSFLRGQnalldpAQLeereRKRQKALEHQNAIKKQL--------EEKER 70
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   375 KARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEaaRKELEKQRQQEWEQA-RIAEMNAQKEREQERV--LKQK 451
Cdd:pfam15236   71 QKKLEEERRRQEEQEEEERLRREREEEQKQFEEERRKQKE--KEEAMTRKTQALLQAmQKAQELAQRLKQEQRIreLAEK 148

                   ....*
gi 442628730   452 AHNTQ 456
Cdd:pfam15236  149 GHDTS 153
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1031-1081 3.74e-09

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 53.63  E-value: 3.74e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE--LNGLSGLFPSNYVGP 1081
Cdd:cd11784     3 VALHSYSAHRPEELELQKGEGVRVLGKFQEGWLRGLslVTGRVGIFPSNYVSP 55
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
680-734 3.89e-09

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 53.47  E-value: 3.89e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYVEKLE 734
Cdd:cd12060     5 KARFNFKQTNEDELSVCKGDIIYV--TRVEEGGWWEGTLNGKTGWFPSNYVREIK 57
SH3_9 pfam14604
Variant SH3 domain;
948-1001 4.15e-09

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 53.39  E-value: 4.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 442628730   948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVK 1001
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEESEDGWWEGIN--TGRT---GLVPANYVE 49
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
786-833 4.19e-09

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 53.49  E-value: 4.19e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11874     4 VLFSYTPQNEDELELKVGDTIEVLGEVEEgWWEGKLNGKVGVFPSNFVK 52
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
680-733 4.44e-09

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 53.48  E-value: 4.44e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  680 QAVYEFNARNAEEITFVPGDI--ILVPLEQNaepgWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11920     4 RAVYDFKAQTSKELSFKKGDTvyILRKIDQN----WYEGEHHGRVGIFPISYVEKL 55
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
784-833 4.74e-09

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 53.14  E-value: 4.74e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTI-GSRTGMFPSNYVQ 833
Cdd:cd11837     2 ATALYPWRAKKENHLSFAKGDIITVLEQQEMWWFGELeGGEEGWFPKSYVK 52
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
783-832 5.19e-09

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 53.12  E-value: 5.19e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNYV 832
Cdd:cd11875     1 KARVLFDYEAENEDELTLREGDIVTILSKDCEdkgWWKGELNGKRGVFPDNFV 53
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
341-597 5.22e-09

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 60.47  E-value: 5.22e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKRE-KARLEAERKQQEELERQLQR-QREIEMEKEEQRK--RELEAKEAA 416
Cdd:TIGR02169  694 QSELRRIENRLDELSQELSDASRKIGEIEKEIEQlEQEEEKLKERLEELEEDLSSlEQEIENVKSELKEleARIEELEED 773
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   417 RKELEKQ--------RQQEWEQARiAEMNAQKEREQERVLKQKAHNTQLN---VELSTLNEKIKELSQRICDTRAGVTNV 485
Cdd:TIGR02169  774 LHKLEEAlndlearlSHSRIPEIQ-AELSKLEEEVSRIEARLREIEQKLNrltLEKEYLEKEIQELQEQRIDLKEQIKSI 852
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   486 KTVIDGMRTQrdtsmseMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDK 565
Cdd:TIGR02169  853 EKEIENLNGK-------KEELEEELEELEAALRDLESRLGDLKKERDELEAQLRELERKIEELEAQIEKKRKRLSELKAK 925
                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....*
gi 442628730   566 VENISKEI-----------ESKKEDINTNDVQMS--ELKAELSAL 597
Cdd:TIGR02169  926 LEALEEELseiedpkgedeEIPEEELSLEDVQAElqRVEEEIRAL 970
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1032-1079 5.26e-09

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 53.02  E-value: 5.26e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11929     5 ALCNYRGHNPGDLKFNKGDVILLRRQLDENWYLGEINGVSGIFPASSV 52
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
783-832 6.45e-09

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 52.85  E-value: 6.45e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE------WWTGTIGSRTGMFPSNYV 832
Cdd:cd12059     1 VWTAVFDYEASAEDELTLRRGDRVEVLSKDSAvsgdegWWTGKINDRVGIFPSNYV 56
SH3_Fyn_Yrk cd12006
Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) ...
1031-1081 6.76e-09

Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) are members of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Fyn, together with Lck, plays a critical role in T-cell signal transduction by phosphorylating ITAM (immunoreceptor tyr activation motif) sequences on T-cell receptors, ultimately leading to the proliferation and differentiation of T-cells. In addition, Fyn is involved in the myelination of neurons, and is implicated in Alzheimer's and Parkinson's diseases. Yrk has been detected only in chickens. It is primarily found in neuronal and epithelial cells and in macrophages. It may play a role in inflammation and in response to injury. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212939 [Multi-domain]  Cd Length: 56  Bit Score: 52.74  E-value: 6.76e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWW--RGELNGLSGLFPSNYVGP 1081
Cdd:cd12006     4 VALYDYEARTEDDLSFHKGEKFQILNSSEGDWWeaRSLTTGETGYIPSNYVAP 56
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
341-550 7.71e-09

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 60.08  E-value: 7.71e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQqrkereererKEREEADKREKAR-LEAERKQQEELERQLQRQREiEMEKEEQRKRELEAKEAARKE 419
Cdd:TIGR02169  317 LEDAEERLAKLEAE----------IDKLLAEIEELEReIEEERKRRDKLTEEYAELKE-ELEDLRAELEEVDKEFAETRD 385
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   420 LEKQRQQEWEQA--RIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRD 497
Cdd:TIGR02169  386 ELKDYREKLEKLkrEINELKRELDRLQEELQRLSEELADLNAAIAGIEAKINELEEEKEDKALEIKKQEWKLEQLAADLS 465
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|...
gi 442628730   498 TSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNA 550
Cdd:TIGR02169  466 KYEQELYDLKEEYDRVEKELSKLQRELAEAEAQARASEERVRGGRAVEEVLKA 518
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
948-1002 7.89e-09

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 52.65  E-value: 7.89e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVKV 1002
Cdd:cd11873     4 VEFDYDAEEPDELTLKVGDIITNVKKMEEGWWEGTL--NGKR---GMFPDNFVKV 53
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
786-832 8.18e-09

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 52.64  E-value: 8.18e-09
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11964     5 AIYDFEAAEDNELTFKAGDIITILdDSDPNWWKGETPQGTGLFPSNFV 52
SH3_ASPP2 cd11953
Src Homology 3 (SH3) domain of Apoptosis Stimulating of p53 protein 2; ASPP2 is the full ...
1030-1080 8.34e-09

Src Homology 3 (SH3) domain of Apoptosis Stimulating of p53 protein 2; ASPP2 is the full length form of the previously-identified tumor supressor, p53-binding protein 2 (p53BP2). ASPP2 activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). It plays a central role in regulating apoptosis and cell growth; ASPP2-deficient mice show postnatal death. Downregulated expression of ASPP2 is frequently found in breast tumors, lung cancer, and diffuse large B-cell lymphoma where it is correlated with a poor clinical outcome. ASPP2 contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP2 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212886 [Multi-domain]  Cd Length: 57  Bit Score: 52.65  E-value: 8.34e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGR---DEPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd11953     3 VYALWDYEGESDDELSFKEGDCMTILRRedeDETEWWWARLNDKEGYVPRNLLG 56
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
784-831 8.81e-09

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 52.20  E-value: 8.81e-09
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWW------TGtigsRTGMFPSNY 831
Cdd:cd11845     2 YVALYDYEARTDDDLSFKKGDRLQILDDsDGDWWlarhlsTG----KEGYIPSNY 52
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
372-607 9.78e-09

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 59.65  E-value: 9.78e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQEELERQLQRQ-REIEMEKEEQRKR----------------ELEAKEAAR----KELEKQRQQEWEQ 430
Cdd:TIGR04523  390 ESQINDLESKIQNQEKLNQQKDEQiKKLQQEKELLEKEierlketiiknnseikDLTNQDSVKeliiKNLDNTRESLETQ 469
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   431 ARIAEMNAQKER-EQERVLKQKAHNTQlnvELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKAR 509
Cdd:TIGR04523  470 LKVLSRSINKIKqNLEQKQKELKSKEK---ELKKLNEEKKELEEKVKDLTKKISSLKEKIEKLESEKKEKESKISDLEDE 546
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   510 IKEQNAKL---------LQLTQERAKWEAKSKASgaalggENAQQEqlnaafahKQLIINQIKDKVENISKEIESKKEDI 580
Cdd:TIGR04523  547 LNKDDFELkkenlekeiDEKNKEIEELKQTQKSL------KKKQEE--------KQELIDQKEKEKKDLIKEIEEKEKKI 612
                          250       260       270
                   ....*....|....*....|....*....|
gi 442628730   581 NTNDVQMSELKAE---LSALITKCEDLYKE 607
Cdd:TIGR04523  613 SSLEKELEKAKKEnekLSSIIKNIKSKKNK 642
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
678-731 1.09e-08

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 52.35  E-value: 1.09e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11875     1 KARVLFDYEAENEDELTLREGDIVTILSKDCEDKGWWKGELNGKRGVFPDNFVE 54
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1031-1081 1.11e-08

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 52.29  E-value: 1.11e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11991     3 VAMYTYESNEQGDLTFQQGDVILVTKKDG-DWWTGTVGDKTGVFPSNYVRP 52
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1034-1079 1.13e-08

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 52.34  E-value: 1.13e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 442628730 1034 YPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11901     8 FNYTAEREDELSLVKGTKVIVMEKCSDGWWRGSYNGQVGWFPSNYV 53
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
372-596 1.20e-08

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 58.24  E-value: 1.20e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRK---RELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQERVL 448
Cdd:COG4942    23 AEAEAELEQLQQEIAELEKELAALKKEEKALLKQLAaleRRIAALARRIRALEQELAAL--EAELAELEKEIAELRAELE 100
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  449 KQKAhntqlnvELSTLNEKIKELSQRicDTRAGVTNVKTVIDGMRtqRDTSMSEMSQ-LKARIKEQNAKLLQLTQERAKW 527
Cdd:COG4942   101 AQKE-------ELAELLRALYRLGRQ--PPLALLLSPEDFLDAVR--RLQYLKYLAPaRREQAEELRADLAELAALRAEL 169
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  528 EAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSA 596
Cdd:COG4942   170 EAERAELEALLAELEEERAALEALKAERQKLLARLEKELAELAAELAELQQEAEELEALIARLEAEAAA 238
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
680-732 1.21e-08

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 52.25  E-value: 1.21e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11976     3 KARYDFCARDRSELSLKEGDIIKI-LNKKGQQGWWRGEIYGRVGWFPANYVEE 54
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
947-997 1.22e-08

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 51.82  E-value: 1.22e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730   947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgRRRQIGWFPA 997
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLEKSEDGWWKGRN----KGGKEGLIPS 47
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
952-1000 1.38e-08

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 51.88  E-value: 1.38e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYV 1000
Cdd:cd11766     8 YEAQREDELSLRKGDRVLVLEKSSDGWWRGECNG-----QVGWFPSNYV 51
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
786-833 1.47e-08

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 51.76  E-value: 1.47e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11961     4 ALYDYDAAEDNELSFFENDKIINIEfVDDDWWLGECHGSRGLFPSNYVE 52
SH3_Tec_like cd11768
Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed ...
1029-1079 1.51e-08

Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed in hepatocellular carcinoma) subfamily is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar proteins. They are cytoplasmic (or nonreceptor) tyr kinases containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation. In addition, some members contain the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. Tec kinases are expressed mainly by haematopoietic cells, although Tec and Bmx are also found in endothelial cells. B-cells express Btk and Tec, while T-cells express Itk, Txk, and Tec. Collectively, Tec kinases are expressed in a variety of myeloid cells such as mast cells, platelets, macrophages, and dendritic cells. Each Tec kinase shows a distinct cell-type pattern of expression. The function of Tec kinases in lymphoid cells have been studied extensively. They play important roles in the development, differentiation, maturation, regulation, survival, and function of B-cells and T-cells. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212702 [Multi-domain]  Cd Length: 54  Bit Score: 51.89  E-value: 1.51e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG-ELNGLSGLFPSNYV 1079
Cdd:cd11768     1 IVVALYDFQPIEPGDLPLEKGEEYVVLDDSNEHWWRArDKNGNEGYIPSNYV 52
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
786-834 1.51e-08

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 51.70  E-value: 1.51e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11820     5 ALYDFEAAEDNELTFKAGEIITVLDDSDPnWWKGSNHRGEGLFPANFVTA 54
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
947-1003 1.52e-08

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 51.82  E-value: 1.52e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKK--TDSGWWEGELQakGRRrqiGWFPATYVKVL 1003
Cdd:cd12057     3 KVLFPYEAQNEDELTIKEGDIVTLISKdcIDAGWWEGELN--GRR---GVFPDNFVKLL 56
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1031-1079 1.56e-08

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 51.74  E-value: 1.56e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLG-RDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11948     3 VALYSFQATESDELPFQKGDILKILNmEDDQNWYKAELQGREGYIPKNYI 52
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
678-733 2.25e-08

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 51.56  E-value: 2.25e-08
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gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILV-----PLEQnaEPGWLAG--EINGHTGWFPESYVEKL 733
Cdd:cd11790     4 KVRATHDYTAEDTDELTFEKGDVILVipfddPEEQ--DEGWLMGvkESTGCRGVFPENFTERI 64
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
947-1002 2.35e-08

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 51.26  E-value: 2.35e-08
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gi 442628730  947 QVIA--PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVKV 1002
Cdd:cd11840     1 QVIAlfPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNG-----QTGLFPSNYVEP 53
SH3_Yes cd12007
Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src ...
1031-1081 2.42e-08

Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. c-Yes kinase is the cellular homolog of the oncogenic protein (v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma viruses. It displays functional overlap with other Src subfamily members, particularly Src. It also shows some unique functions such as binding to occludins, transmembrane proteins that regulate extracellular interactions in tight junctions. Yes also associates with a number of proteins in different cell types that Src does not interact with, like JAK2 and gp130 in pre-adipocytes, and Pyk2 in treated pulmonary vein endothelial cells. Although the biological function of Yes remains unclear, it appears to have a role in regulating cell-cell interactions and vesicle trafficking in polarized cells. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212940 [Multi-domain]  Cd Length: 58  Bit Score: 51.57  E-value: 2.42e-08
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gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWW--RGELNGLSGLFPSNYVGP 1081
Cdd:cd12007     4 VALYDYEARTTEDLSFKKGERFQIINNTEGDWWeaRSIATGKNGYIPSNYVAP 56
SH3_iASPP cd11952
Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called ...
1030-1080 2.43e-08

Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called RelA-associated inhibitor (RAI), is an oncoprotein that inhibits the apoptotic transactivation potential of p53. It is upregulated in human breast cancers expressing wild-type p53, in acute leukemias regardless of the p53 mutation status, as well as in ovarian cancer where it is associated with poor patient outcome and chemoresistance. iASPP is also a binding partner and negative regulator of p65RelA, which promotes cell proliferation and inhibits apoptosis; p65RelA has the opposite effect on cell growth compared to the p53 family. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of iASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212885 [Multi-domain]  Cd Length: 56  Bit Score: 51.47  E-value: 2.43e-08
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd11952     3 VYALWDYSAEFPDELSFKEGDMVTVLRKDgeGTDWWWASLCGREGYVPRNYFG 55
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
946-1002 2.54e-08

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 51.21  E-value: 2.54e-08
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gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVKV 1002
Cdd:cd11786     2 AKALYNYEGKEPGDLSFKKGDIILLRKRIDENWYHGECNGK-----QGFFPASYVQV 53
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
1031-1079 2.63e-08

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 51.09  E-value: 2.63e-08
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gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPE-WWRGELNGLSGLFPSNYV 1079
Cdd:cd11830     3 KARYDFCARDMRELSLKEGDVVKIYNKKGQQgWWRGEINGRIGWFPSTYV 52
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
1029-1081 2.72e-08

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 51.10  E-value: 2.72e-08
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gi 442628730 1029 KVIALYPYKAQNDDELSFDK-DDIISVLGRDEPEWWRGEL-NGLSGLFPSNYVGP 1081
Cdd:cd11998     2 RVRALYDYDGQEQDELSFKAgDELTKLEDEDEQGWCKGRLdSGQVGLYPANYVEP 56
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
1030-1079 2.72e-08

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 50.99  E-value: 2.72e-08
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNG-LSGLFPSNYV 1079
Cdd:cd11969     2 VKALYDYRAKRSDELSFCKGALIHNVSKETGGWWKGDYGGkVQHYFPSNYV 52
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
946-1003 2.72e-08

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 51.06  E-value: 2.72e-08
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gi 442628730   946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVKVL 1003
Cdd:pfam07653    2 GRVIFDYVGTDKNGLTLKKGDVVKVLGKDNDGWWEGET--GGRV---GLVPSTAVEEI 54
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
680-732 2.75e-08

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 50.88  E-value: 2.75e-08
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gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQnaEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11827     3 KALYAYDAQDTDELSFNEGDIIEILKED--PSGWWTGRLRGKEGLFPGNYVEK 53
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
680-731 2.82e-08

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 51.24  E-value: 2.82e-08
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gi 442628730  680 QAVYEFNARNAEEITFVPGDII-LVPLEQNA-EPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11762     3 RALYDYEAQSDEELSFPEGAIIrILRKDDNGvDDGWWEGEFNGRVGVFPSLVVE 56
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
788-833 2.93e-08

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 51.05  E-value: 2.93e-08
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gi 442628730  788 YPYESAEEGDLSFSAGEMVMVIKKE---GEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12057     6 FPYEAQNEDELTIKEGDIVTLISKDcidAGWWEGELNGRRGVFPDNFVK 54
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
680-730 2.93e-08

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 50.98  E-value: 2.93e-08
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gi 442628730  680 QAVYEFNA-RNAEEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11829     3 RTLYAFTGeQHQQGLSFEAGELIRV--LQAPDGGWWEGEKDGLRGWFPASYV 52
SH3_RIM-BP_3 cd12013
Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs ...
1029-1079 2.96e-08

Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212946  Cd Length: 61  Bit Score: 51.23  E-value: 2.96e-08
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gi 442628730 1029 KVIALYPYKAQ----NDD---ELSFDKDDIISVLGR-DEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12013     1 RMVALFDYDPResspNVDaevELSFRAGDIITVFGEmDEDGFYYGELNGQRGLVPSNFL 59
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
784-834 2.99e-08

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 51.10  E-value: 2.99e-08
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gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11856     2 YVAIADYEAQGDDEISLQEGEVVEVLEKnDSGWWYVRKGDKEGWVPASYLEP 53
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1032-1078 2.99e-08

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 51.15  E-value: 2.99e-08
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gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11987     4 ALYPFEARSHDEITIQPGDIVMVDESQtgEPGWLGGELKGKTGWFPANY 52
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
786-834 3.07e-08

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 51.16  E-value: 3.07e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12060     6 ARFNFKQTNEDELSVCKGDIIYVTRvEEGGWWEGTLNGKTGWFPSNYVRE 55
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
786-833 3.09e-08

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 50.99  E-value: 3.09e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11949     4 ALFDFDPQEDGELGFRRGDFIEVMdNSDPNWWKGACHGQTGMFPRNYVT 52
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
681-731 3.46e-08

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 50.80  E-value: 3.46e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  681 AVYEFNARNAEEITFVPGDIILV--PLEQNaepgWLAGEINGHTGWFPESYVE 731
Cdd:cd11781     4 ALYPFKAQSAKELSLKKGDIIYIrrQIDKN----WYEGEHNGRVGIFPASYVE 52
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
680-732 3.55e-08

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 50.70  E-value: 3.55e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11805     3 QALYDFNPQEPGELEFRRGDIITV--LDSSDPDWWKGELRGRVGIFPANYVQP 53
CALCOCO1 pfam07888
Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are ...
331-649 3.62e-08

Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are similar to the coiled-coil transcriptional coactivator protein coexpressed by Mus musculus (CoCoA/CALCOCO1). This protein binds to a highly conserved N-terminal domain of p160 coactivators, such as GRIP1, and thus enhances transcriptional activation by a number of nuclear receptors. CALCOCO1 has a central coiled-coil region with three leucine zipper motifs, which is required for its interaction with GRIP1 and may regulate the autonomous transcriptional activation activity of the C-terminal region.


Pssm-ID: 462303 [Multi-domain]  Cd Length: 488  Bit Score: 57.21  E-value: 3.62e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   331 DKRKENYVKGQAELDRRRKIM---------------EDQQRKEREERERKEREEADKREKARLEAERKQQE----ELE-- 389
Cdd:pfam07888   58 EKEKERYKRDREQWERQRRELesrvaelkeelrqsrEKHEELEEKYKELSASSEELSEEKDALLAQRAAHEarirELEed 137
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   390 ------RQLQRQREIEMEKEEQRK--RELEAKEAARKELEKQRQQEWEQAR------------IAEMNAQKEREQERV-- 447
Cdd:pfam07888  138 iktltqRVLERETELERMKERAKKagAQRKEEEAERKQLQAKLQQTEEELRslskefqelrnsLAQRDTQVLQLQDTItt 217
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 LKQK---AHntQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKL----LQL 520
Cdd:pfam07888  218 LTQKlttAH--RKEAENEALLEELRSLQERLNASERKVEGLGEELSSMAAQRDRTQAELHQARLQAAQLTLQLadasLAL 295
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   521 TQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINqiKDKVENISKEIESKKEDiNTNDVQMSELKAELSALITK 600
Cdd:pfam07888  296 REGRARWAQERETLQQSAEADKDRIEKLSAELQRLEERLQ--EERMEREKLEVELGREK-DCNRVQLSESRRELQELKAS 372
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|....
gi 442628730   601 CEDLYKEYDVQRTSVLEL-----KYNRKNETSVSSAWDTGSSSAWEETGTTVTD 649
Cdd:pfam07888  373 LRVAQKEKEQLQAEKQELleyirQLEQRLETVADAKWSEAALTSTERPDSPLSD 426
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
946-1000 3.68e-08

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 50.80  E-value: 3.68e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYV 1000
Cdd:cd11793     2 VQCVHAYTAQQPDELTLEEGDVVNVLRKMPDGWYEGERLRDGER---GWFPSSYT 53
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
785-834 3.76e-08

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 50.66  E-value: 3.76e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12052     3 IVEFDYKAQHEDELTITVGDIITKIKKDdGGWWEGEIKGRRGLFPDNFVRE 53
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
785-833 4.06e-08

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 50.39  E-value: 4.06e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK--EGeWWTGTI-GSRTGMFPSNYVQ 833
Cdd:cd11819     3 KALYDYQAAEDNEISFVEGDIITQIEQidEG-WWLGVNaKGQKGLFPANYVE 53
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
371-625 4.37e-08

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 57.44  E-value: 4.37e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAERKQQEELERQLQRQREIEmEKEEQRKRELEAKEAARKELEK---QRQQEWEQARIAEmnaqKEREQERV 447
Cdd:pfam17380  291 EKFEKMEQERLRQEKEEKAREVERRRKLE-EAEKARQAEMDRQAAIYAEQERmamERERELERIRQEE----RKRELERI 365
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   448 LKQK-AHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQ-LTQERA 525
Cdd:pfam17380  366 RQEEiAMEISRMRELERLQMERQQKNERVRQELEAARKVKILEEERQRKIQQQKVEMEQIRAEQEEARQREVRrLEEERA 445
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   526 KWEAKSKASgaalggENAQQEQLNAAfahKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALI---TKCE 602
Cdd:pfam17380  446 REMERVRLE------EQERQQQVERL---RQQEEERKRKKLELEKEKRDRKRAEEQRRKILEKELEERKQAMIeeeRKRK 516
                          250       260
                   ....*....|....*....|...
gi 442628730   603 DLYKEYDVQRTSVLELKYNRKNE 625
Cdd:pfam17380  517 LLEKEMEERQKAIYEEERRREAE 539
PTZ00121 PTZ00121
MAEBL; Provisional
330-607 4.52e-08

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 57.84  E-value: 4.52e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAELDRRR----KIMEDQQRKEREERERKEREEAD---------KREKARLEAERKQQEELERQLQRQR 396
Cdd:PTZ00121 1480 EEAKKADEAKKKAEEAKKKadeaKKAAEAKKKADEAKKAEEAKKADeakkaeeakKADEAKKAEEKKKADELKKAEELKK 1559
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  397 EIEMEKEEQRKRELEAKEAARKELEKQRQQewEQARIAEMNAQKEREQervlKQKAHNTQLNVELSTLNEKIKELSQric 476
Cdd:PTZ00121 1560 AEEKKKAEEAKKAEEDKNMALRKAEEAKKA--EEARIEEVMKLYEEEK----KMKAEEAKKAEEAKIKAEELKKAEE--- 1630
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  477 dtragvtnVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAfAHKQ 556
Cdd:PTZ00121 1631 --------EKKKVEQLKKKEAEEKKKAEELKKAEEENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKE-AEEA 1701
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  557 LIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKE 607
Cdd:PTZ00121 1702 KKAEELKKKEAEEKKKAEELKKAEEENKIKAEEAKKEAEEDKKKAEEAKKD 1752
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
1031-1079 4.57e-08

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 50.29  E-value: 4.57e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11986     3 VALYRFKALEKDDLDFHPGERITVIDDSNEEWWRGKIGEKTGYFPMNFI 51
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
680-733 4.62e-08

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 50.45  E-value: 4.62e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQnaEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd12061     3 RAKFNFQQTNEDELSFSKGDVIHVTRVE--EGGWWEGTHNGRTGWFPSNYVREI 54
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
681-731 4.65e-08

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 50.50  E-value: 4.65e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILvPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11843     4 ALYDYEGQESDELSFKAGDILT-KLEEEDEQGWCKGRLDGRVGLYPANYVE 53
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
784-832 4.98e-08

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 50.32  E-value: 4.98e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE------WWTGTIGSRTGMFPSNYV 832
Cdd:cd12058     2 WTALYDYEASGEDELSLRRGDVVEVLSQDAAvsgddgWWAGKIRHRLGIFPANYV 56
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
1029-1079 5.27e-08

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 50.40  E-value: 5.27e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPE-WWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11763     1 KVRALYDFDSQPSGELSLRAGEVLTITRQDVGDgWLEGRnSRGEVGLFPSSYV 53
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
952-1000 6.24e-08

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 50.32  E-value: 6.24e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKT-----DSGWWEGELqakgrRRQIGWFPATYV 1000
Cdd:cd12058     8 YEASGEDELSLRRGDVVEVLSQDaavsgDDGWWAGKI-----RHRLGIFPANYV 56
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
783-829 6.70e-08

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 49.74  E-value: 6.70e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPS 829
Cdd:cd11832     1 YFIAVKSYSPQEEGEISLHKGDRVKVLSiGEGGFWEGSVRGRTGWFPS 48
SH3_Sho1p cd11855
Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called ...
1029-1079 6.90e-08

Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called SSU81 (Suppressor of SUA8-1 mutation), is a yeast membrane protein that regulates adaptation to high salt conditions by activating the HOG (high-osmolarity glycerol) pathway. High salt concentrations lead to the localization to the membrane of the MAPKK Pbs2, which is then activated by the MAPKK Ste11 and in turn, activates the MAPK Hog1. Pbs2 is localized to the membrane though the interaction of its PxxP motif with the SH3 domain of Sho1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212789 [Multi-domain]  Cd Length: 55  Bit Score: 50.11  E-value: 6.90e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1029 KVIALYPYKAQNDD--ELSFDKDDIISVLGrDEPEWWRGEL-NGLSGLFPSNYV 1079
Cdd:cd11855     1 RARALYPYDASPDDpnELSFEKGEILEVSD-TSGKWWQARKsNGETGICPSNYL 53
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1032-1079 6.90e-08

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 50.01  E-value: 6.90e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11920     5 AVYDFKAQTSKELSFKKGDTVYILRKIDQNWYEGEHHGRVGIFPISYV 52
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
952-1001 6.90e-08

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 50.07  E-value: 6.90e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd12061     8 FQQTNEDELSFSKGDVIHVTRVEEGGWWEGTHNGR-----TGWFPSNYVR 52
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
784-833 6.91e-08

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 50.01  E-value: 6.91e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGT-IGSRTGMFPSNYVQ 833
Cdd:cd11849     2 YRALYDFKSAEPNTLSFSEGETFLLLERSNAhWWLVTnHSGETGYVPANYVK 53
MAD pfam05557
Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint ...
382-619 7.48e-08

Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint (Mitotic arrest deficient or MAD) proteins. The mitotic spindle checkpoint monitors proper attachment of the bipolar spindle to the kinetochores of aligned sister chromatids and causes a cell cycle arrest in prometaphase when failures occur. Multiple components of the mitotic spindle checkpoint have been identified in yeast and higher eukaryotes. In S.cerevisiae, the existence of a Mad1-dependent complex containing Mad2, Mad3, Bub3 and Cdc20 has been demonstrated.


Pssm-ID: 461677 [Multi-domain]  Cd Length: 660  Bit Score: 56.67  E-value: 7.48e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   382 RKQQEELERQL-QRQREIeMEKEEQRKR---ELEAKEAARK---ELEKQRQQEWeQARIAEMNAQKEREQERVLKQKAHN 454
Cdd:pfam05557    1 RAELIESKARLsQLQNEK-KQMELEHKRariELEKKASALKrqlDRESDRNQEL-QKRIRLLEKREAEAEEALREQAELN 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   455 TQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRD-------TSMSEMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:pfam05557   79 RLKKKYLEALNKKLNEKESQLADAREVISCLKNELSELRRQIQraelelqSTNSELEELQERLDLLKAKASEAEQLRQNL 158
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASGAA------LGGENAQQEQlnaafahKQLIINQIKDKVENIS---KEIESKKEDI---NTNDVQMSELKAELS 595
Cdd:pfam05557  159 EKQQSSLAEAeqrikeLEFEIQSQEQ-------DSEIVKNSKSELARIPeleKELERLREHNkhlNENIENKLLLKEEVE 231
                          250       260
                   ....*....|....*....|....*
gi 442628730   596 ALITKcedLYKEYDVQRTSV-LELK 619
Cdd:pfam05557  232 DLKRK---LEREEKYREEAAtLELE 253
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
785-833 7.63e-08

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 49.95  E-value: 7.63e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11995     4 IGMYDYTAQNDDELAFSKGQIINVLNKEDpDWWKGELNGQVGLFPSNYVK 53
SH3_GRAP2_N cd11947
N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1032-1079 7.64e-08

N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also have roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212880 [Multi-domain]  Cd Length: 52  Bit Score: 49.79  E-value: 7.64e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11947     4 GKFDFTASGEDELSFKKGDVLKILSSDD-IWFKAELNGEEGYVPKNFV 50
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1032-1079 7.65e-08

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 49.92  E-value: 7.65e-08
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11928     5 ALYSYEGKEPGDLKFNKGDIIILRRKVDENWYHGELNGCHGFLPASYI 52
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
678-732 7.85e-08

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 49.62  E-value: 7.85e-08
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIIlvpleQNAEP---GWLAG--EINGHTGWFPESYVEK 732
Cdd:cd11789     1 RYRAMYDYAAADDDEVSFQEGDVI-----INVEIiddGWMEGtvQRTGQSGMLPANYVEL 55
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
678-733 8.10e-08

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 50.00  E-value: 8.10e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAG--EINGHTGWFPESYVEKL 733
Cdd:cd11934     4 RYRAVYDYNAADEDEVSFQDGDTIVNV--QQIDDGWMYGtvERTGDTGMLPANYVEAI 59
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
784-834 8.20e-08

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 49.57  E-value: 8.20e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVM-VIKKEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11873     2 VIVEFDYDAEEPDELTLKVGDIITnVKKMEEGWWEGTLNGKRGMFPDNFVKV 53
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
681-732 9.88e-08

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 49.63  E-value: 9.88e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11977     5 ARYNFAARDMRELSLREGDVVRIYSRIGGDQGWWKGETNGRIGWFPSTYVEE 56
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
786-833 9.99e-08

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 49.34  E-value: 9.99e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11843     4 ALYDYEGQESDELSFKAGDILTKLEEEDEqgWCKGRLDGRVGLYPANYVE 53
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
1029-1079 1.01e-07

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 49.65  E-value: 1.01e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL-----NGLSGLFPSNYV 1079
Cdd:cd11887     3 KVKALYPYESDHEDDLNFDVGQLITVTEEEDADWYFGEYvdsngNTKEGIFPKNFV 58
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
784-834 1.04e-07

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 49.57  E-value: 1.04e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11766     2 AVVKFNYEAQREDELSLRKGDRVLVLEKSSDgWWRGECNGQVGWFPSNYVTE 53
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
1031-1079 1.05e-07

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 49.42  E-value: 1.05e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11833     3 VALYKFKPQENEDLEMRPGDKITLLDDSNEDWWKGKIEDRVGFFPANFV 51
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
785-834 1.10e-07

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 49.65  E-value: 1.10e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGT----IGSR-TGMFPSNYVQK 834
Cdd:cd11887     5 KALYPYESDHEDDLNFDVGQLITVTEEEdADWYFGEyvdsNGNTkEGIFPKNFVEV 60
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
678-732 1.14e-07

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 49.29  E-value: 1.14e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQnAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11824     1 KYSVLYDYTAQEDDELSISKGDVVAV-IEK-GEDGWWTVERNGQKGLVPGTYLEK 53
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
680-729 1.15e-07

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 49.42  E-value: 1.15e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESY 729
Cdd:cd11778     3 EALYDYEAQGDDEISIRVGDRIAV-IRGDDGSGWTYGEINGVKGLFPTSY 51
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
1032-1079 1.18e-07

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 49.18  E-value: 1.18e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11927     5 ALYNYEGKEPGDLKFSKGDIIILRRQVDENWYHGEVNGIHGFFPTNFV 52
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
1032-1081 1.19e-07

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 49.22  E-value: 1.19e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG--ELNGLSGLFPSNYVGP 1081
Cdd:cd11780     4 ALYSYTPQNEDELELREGDIVYVMEKCDDGWFVGtsERTGLFGTFPGNYVAR 55
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
678-731 1.19e-07

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 49.25  E-value: 1.19e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGE-INGHTGWFPESYVE 731
Cdd:cd11763     1 KVRALYDFDSQPSGELSLRAGEVLTI-TRQDVGDGWLEGRnSRGEVGLFPSSYVE 54
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
680-730 1.21e-07

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 49.41  E-value: 1.21e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQnAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11951     3 QAQYDFSAEDPSQLSFRRGDIIEV-LDC-PDPNWWRGRISGRVGFFPRNYV 51
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
947-1002 1.28e-07

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 49.21  E-value: 1.28e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  947 QVIAPYE--ATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVKV 1002
Cdd:cd11996     2 QVIAMYDytANNEDELSFSKGQLINVLNKDDPDWWQGEING-----VTGLFPSNYVKM 54
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
786-832 1.29e-07

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 49.25  E-value: 1.29e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11963     6 ALYDFEAVEDNELTFKHGEIIIVLDdSDANWWKGENHRGVGLFPSNFV 53
SH3_Yes cd12007
Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src ...
783-836 1.37e-07

Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. c-Yes kinase is the cellular homolog of the oncogenic protein (v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma viruses. It displays functional overlap with other Src subfamily members, particularly Src. It also shows some unique functions such as binding to occludins, transmembrane proteins that regulate extracellular interactions in tight junctions. Yes also associates with a number of proteins in different cell types that Src does not interact with, like JAK2 and gp130 in pre-adipocytes, and Pyk2 in treated pulmonary vein endothelial cells. Although the biological function of Yes remains unclear, it appears to have a role in regulating cell-cell interactions and vesicle trafficking in polarized cells. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212940 [Multi-domain]  Cd Length: 58  Bit Score: 49.26  E-value: 1.37e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTG-TIGS-RTGMFPSNYVQKAD 836
Cdd:cd12007     2 IFVALYDYEARTTEDLSFKKGERFQIINNtEGDWWEArSIATgKNGYIPSNYVAPAD 58
SH3_FCHSD1_2 cd11895
Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain ...
1032-1076 1.41e-07

Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212828  Cd Length: 58  Bit Score: 49.19  E-value: 1.41e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE----WWRGELNGLSGLFPS 1076
Cdd:cd11895     4 ALYSYTGQSPEELSFPEGALIRLLPRAQDGvddgFWRGEFGGRVGVFPS 52
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
676-732 1.46e-07

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 48.80  E-value: 1.46e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  676 FVKYQavYEfnARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11766     3 VVKFN--YE--AQREDELSLRKGDRVLV-LEKSSD-GWWRGECNGQVGWFPSNYVTE 53
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
371-470 1.54e-07

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 51.97  E-value: 1.54e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKREleakEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:pfam05672    8 DAEEAARILAEKRRQAREQREREEQERLEKEEEERLRKE----ELRRRAEEERARREEEARRLEEERRREEEERQRKAEE 83
                           90       100
                   ....*....|....*....|.
gi 442628730   451 KAH-NTQLNVELSTLNEKIKE 470
Cdd:pfam05672   84 EAEeREQREQEEQERLQKQKE 104
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
372-553 1.63e-07

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 55.54  E-value: 1.63e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKrELEAKEAARKELEKQRQ-----QEWEQARiAEMnAQKEREQER 446
Cdd:COG4717    74 KELEEELKEAEEKEEEYAELQEELEELEEELEELEA-ELEELREELEKLEKLLQllplyQELEALE-AEL-AELPERLEE 150
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  447 VLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTV-IDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERA 525
Cdd:COG4717   151 LEERLEELRELEEELEELEAELAELQEELEELLEQLSLATEEeLQDLAEELEELQQRLAELEEELEEAQEELEELEEELE 230
                         170       180
                  ....*....|....*....|....*...
gi 442628730  526 KWEAKSKAsgAALGGENAQQEQLNAAFA 553
Cdd:COG4717   231 QLENELEA--AALEERLKEARLLLLIAA 256
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
784-832 1.67e-07

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 48.86  E-value: 1.67e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11982     3 FMAVKPYQSQAEGEISLSKGEKIKVLSvGEGGFWEGQVKGRVGWFPSDCV 52
SH3_Noxa1_C cd12047
C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox ...
1029-1081 1.67e-07

C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox and is a cytosolic subunit of the nonphagocytic NADPH oxidase complex Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Noxa1 is co-expressed with Nox1 in colon, stomach, uterus, prostate, and vascular smooth muscle cells, consistent with its regulatory role. It does not interact with p40phox, unlike p67phox, making Nox1 activity independent of p40phox, unlike Nox2. Noxa1 contains TPR, PB1, and C-terminal SH3 domains, but lacks the central SH3 domain that is present in p67phox. The TPR domain binds activated GTP-bound Rac. The C-terminal SH3 domain binds the polyproline motif found at the C-terminus of Noxo1, a homolog of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212980  Cd Length: 53  Bit Score: 48.66  E-value: 1.67e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12047     1 RMVAQHDYSAQGPEDLEFSQGDTIDILSEVNQEWLEGHCDGRIGIFPKCFAVR 53
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
1032-1079 1.72e-07

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 48.79  E-value: 1.72e-07
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gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD-EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11976     4 ARYDFCARDRSELSLKEGDIIKILNKKgQQGWWRGEIYGRVGWFPANYV 52
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
952-1001 1.77e-07

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 48.74  E-value: 1.77e-07
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gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVK 1001
Cdd:cd12052     8 YKAQHEDELTITVGDIITKIKKDDGGWWEGEI--KGRR---GLFPDNFVR 52
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1029-1079 1.83e-07

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 48.80  E-value: 1.83e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNG---LSGLFPSNYV 1079
Cdd:cd11966     1 RVKALYNCVADNPDELTFSEGEIIIVDGEEDKEWWIGHIDGeptRRGAFPVSFV 54
SH3_Sla1p_2 cd11774
Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1029-1079 1.84e-07

Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212708 [Multi-domain]  Cd Length: 52  Bit Score: 48.62  E-value: 1.84e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS-GLFPSNYV 1079
Cdd:cd11774     1 QAKALYDYDKQTEEELSFNEGDTLDVYDDSDSDWILVGFNGTQfGFVPANYI 52
SH3_PACSIN3 cd11997
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); ...
1029-1079 1.86e-07

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); PACSIN 3 or Syndapin III (Synaptic dynamin-associated protein III) is expressed ubiquitously and regulates glucose uptake in adipocytes through its role in GLUT1 trafficking. It also modulates the subcellular localization and stimulus-specific function of the cation channel TRPV4. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212930 [Multi-domain]  Cd Length: 56  Bit Score: 48.80  E-value: 1.86e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDK-DDIISVLGRDEPEWWRGEL-NGLSGLFPSNYV 1079
Cdd:cd11997     3 RVRALYDYTGQEADELSFKAgEELLKIGEEDEQGWCKGRLlSGRIGLYPANYV 55
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
680-730 1.86e-07

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 48.67  E-value: 1.86e-07
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gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd12056     5 KALFHYEGTNEDELDFKEGEIILIISKDTGEPGWWKGELNGKEGVFPDNFV 55
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1034-1079 2.04e-07

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 48.85  E-value: 2.04e-07
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gi 442628730 1034 YPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11902     7 FAYVAEREDELSLVKGSRVTVMEKCSDGWWRGSYNGQIGWFPSNYV 52
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
678-730 2.05e-07

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 48.79  E-value: 2.05e-07
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gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11964     2 KVRAIYDFEAAEDNELTFKAGDIITIL--DDSDPNWWKGETPQGTGLFPSNFV 52
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
1030-1081 2.10e-07

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 48.52  E-value: 2.10e-07
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGR-DE---PEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11800     2 YYALYTFEARSPGELSVTEGQVVTVLEKhDLkgnPEWWLVEDRGKQGYVPSNYLAK 57
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
678-730 2.12e-07

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 48.52  E-value: 2.12e-07
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gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpgWLAGEI-NGHTGWFPESYV 730
Cdd:cd11837     1 TATALYPWRAKKENHLSFAKGDIITV-LEQQEM--WWFGELeGGEEGWFPKSYV 51
SH3_Nck2_3 cd11903
Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1030-1079 2.26e-07

Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212836 [Multi-domain]  Cd Length: 59  Bit Score: 48.51  E-value: 2.26e-07
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gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDE--PEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11903     3 VQTLYPFSSVTEEELNFEKGETMEVIEKPEndPEWWKCKnSRGQVGLVPKNYV 55
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
679-731 2.38e-07

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 48.45  E-value: 2.38e-07
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gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNaePGWLAGEINGHTGWFPESYVE 731
Cdd:cd11772     2 FRALYDYEAQHPDELSFEEGDLLYISDKSD--PNWWKATCGGKTGLIPSNYVE 52
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
952-1001 2.40e-07

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 48.46  E-value: 2.40e-07
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gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGrrrqiGWFPATYVK 1001
Cdd:cd12060    10 FKQTNEDELSVCKGDIIYVTRVEEGGWWEGTLNGKT-----GWFPSNYVR 54
SH3_GRAF2 cd12065
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also ...
1029-1079 2.44e-07

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also called Rho GTPase activating protein 10 (ARHGAP10) or PS-GAP, is a GAP with activity towards Cdc42 and RhoA. It regulates caspase-activated p21-activated protein kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34, leading to its stabilization and decrease of cell death. It is highly expressed in skeletal muscle, and is involved in alpha-catenin recruitment at cell-cell junctions. GRAF2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212998 [Multi-domain]  Cd Length: 54  Bit Score: 48.44  E-value: 2.44e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDII-SVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12065     1 KAKAVYPCEAEHSSELSFEVGAIFeDVTLSREPGWLEGTLNGKRGLIPENYV 52
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
678-731 2.45e-07

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 48.47  E-value: 2.45e-07
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gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYVE 731
Cdd:cd11826     1 KVVALYDYTADKDDELSFQEGDIIYV-TKKNDD-GWYEGVLNGVTGLFPGNYVE 52
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
1029-1079 2.84e-07

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 48.15  E-value: 2.84e-07
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gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11828     1 LAEALWDHVTMDPEELGFKAGDVIEVLDMSDKDWWWGSIRDEEGWFPASFV 51
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
680-731 2.85e-07

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 48.13  E-value: 2.85e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11786     3 KALYNYEGKEPGDLSFKKGDIIL--LRKRIDENWYHGECNGKQGFFPASYVQ 52
SH3_Lyn cd12004
Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of ...
1030-1079 2.96e-07

Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lyn is expressed in B lymphocytes and myeloid cells. It exhibits both positive and negative regulatory roles in B cell receptor (BCR) signaling. Lyn, as well as Fyn and Blk, promotes B cell activation by phosphorylating ITAMs (immunoreceptor tyr activation motifs) in CD19 and in Ig components of BCR. It negatively regulates signaling by its unique ability to phosphorylate ITIMs (immunoreceptor tyr inhibition motifs) in cell surface receptors like CD22 and CD5. Lyn also plays an important role in G-CSF receptor signaling by phosphorylating a variety of adaptor molecules. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212937 [Multi-domain]  Cd Length: 56  Bit Score: 48.07  E-value: 2.96e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLgRDEPEWWRGE--LNGLSGLFPSNYV 1079
Cdd:cd12004     2 VVALYPYDGIHEDDLSFKKGEKLKVI-EEHGEWWKARslTTKKEGFIPSNYV 52
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
786-832 2.97e-07

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 48.28  E-value: 2.97e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11950     4 ALYDFEALEDDELGFNSGDVIEVLdSSNPSWWKGRLHGKLGLFPANYV 51
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
784-834 3.07e-07

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 48.08  E-value: 3.07e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEM---VMVIkKEGeWWTGTIgSRT---GMFPSNYVQK 834
Cdd:cd11789     2 YRAMYDYAAADDDEVSFQEGDViinVEII-DDG-WMEGTV-QRTgqsGMLPANYVEL 55
SH3_ARHGAP32_33 cd11835
Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; ...
1035-1079 3.07e-07

Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; Members of this family contain N-terminal PX and Src Homology 3 (SH3) domains, a central Rho GAP domain, and C-terminal extensions. RhoGAPs (or ARHGAPs) bind to Rho proteins and enhance the hydrolysis rates of bound GTP. ARHGAP32 is also called RICS, PX-RICS, p250GAP, or p200RhoGAP. It is a Rho GTPase-activating protein for Cdc42 and Rac1, and is implicated in the regulation of postsynaptic signaling and neurite outgrowth. PX-RICS, a variant of RICS that contain PX and SH3 domains, is the main isoform expressed during neural development. It is involved in neural functions including axon and dendrite extension, postnatal remodeling, and fine-tuning of neural circuits during early brain development. ARHGAP33, also called sorting nexin 26 or TCGAP (Tc10/CDC42 GTPase-activating protein), is widely expressed in the brain where it is involved in regulating the outgrowth of axons and dendrites and is regulated by the protein tyrosine kinase Fyn. It is translocated to the plasma membrane in adipocytes in response to insulin and may be involved in the regulation of insulin-stimulated glucose transport. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212769 [Multi-domain]  Cd Length: 54  Bit Score: 48.21  E-value: 3.07e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1035 PYKAQNDDELSFDKDDIISVL---GRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11835     7 RYTAQAPDELSLEVGDIVSVIdmpPPEESTWWRGKKGFQVGFFPSECV 54
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
680-726 3.18e-07

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 47.97  E-value: 3.18e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 442628730   680 QAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGE-INGHTGWFP 726
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIV-LEKS-EDGWWKGRnKGGKEGLIP 46
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
781-833 3.21e-07

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 48.47  E-value: 3.21e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  781 VEYYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11972     2 LEKVVAIYDYTKDKEDELSFQEGAIIYVIKKNDDgWYEGVMNGVTGLFPGNYVE 55
SH3_ASAP1 cd11965
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1029-1079 3.63e-07

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 1; ASAP1 is also called DDEF1 (Development and Differentiation Enhancing Factor 1), AMAP1, centaurin beta-4, or PAG2. an Arf GTPase activating protein (GAP) with activity towards Arf1 and Arf5 but not Arf6. However, it has been shown to bind GTP-Arf6 stably without GAP activity. It has been implicated in cell growth, migration, and survival, as well as in tumor invasion and malignancy. It binds paxillin and cortactin, two components of invadopodia which are essential for tumor invasiveness. It also binds focal adhesion kinase (FAK) and the SH2/SH3 adaptor CrkL. ASAP1 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212898 [Multi-domain]  Cd Length: 57  Bit Score: 48.08  E-value: 3.63e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGL---SGLFPSNYV 1079
Cdd:cd11965     1 RVKTIYDCQADNDDELTFVEGEVIIVTGEEDQEWWIGHIEGQperKGVFPVSFV 54
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
783-834 3.86e-07

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 48.07  E-value: 3.86e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKE-GE--WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11987     1 YYRALYPFEARSHDEITIQPGDIVMVDESQtGEpgWLGGELKGKTGWFPANYAEK 55
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
375-448 3.99e-07

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 54.19  E-value: 3.99e-07
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 442628730   375 KARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEakeaaRKELEKQRQQEWEQARIAEMNAQKEREQERVL 448
Cdd:pfam15709  393 KQRLEEERQRQEEEERKQRLQLQAAQERARQQQEEFR-----RKLQELQRKKQQEEAERAEAEKQRQKELEMQL 461
SH3_SH3RF3_3 cd11925
Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1031-1081 4.19e-07

Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212858  Cd Length: 57  Bit Score: 47.68  E-value: 4.19e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE--LNGLSGLFPSNYVGP 1081
Cdd:cd11925     4 LALYAYKPQKNDELELRKGEMYRVIEKCQDGWFKGTslRTGVSGVFPGNYVTP 56
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
782-832 4.20e-07

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 47.90  E-value: 4.20e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  782 EYYIAAYPYESAEEGDLSFSAGEMVMVIKKE-GE--WWTGTIGSRTGMFPSNYV 832
Cdd:cd12056     2 EYCKALFHYEGTNEDELDFKEGEIILIISKDtGEpgWWKGELNGKEGVFPDNFV 55
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
681-731 4.25e-07

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 47.67  E-value: 4.25e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNaePGWLAGEINGHTGWFPESYVE 731
Cdd:cd11996     5 AMYDYTANNEDELSFSKGQLINVLNKDD--PDWWQGEINGVTGLFPSNYVK 53
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
1031-1079 4.26e-07

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 47.71  E-value: 4.26e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPE-WWRGELNGLSGLFPSNYV 1079
Cdd:cd11978     4 IARYDFCARDMRELSLLKGDVVKIYTKMSTNgWWRGEVNGRVGWFPSTYV 53
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
680-731 4.27e-07

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 47.72  E-value: 4.27e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGE--INGHTGWFPESYVE 731
Cdd:cd11793     3 QCVHAYTAQQPDELTLEEGDVVNV-LRKMPD-GWYEGErlRDGERGWFPSSYTE 54
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
371-630 4.40e-07

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 54.21  E-value: 4.40e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAERKQQEELERQ--------LQRQREIEMEKEEQRKRELEAKEAARKE---------LEKQRQQEW----- 428
Cdd:pfam02463  168 KRKKKEALKKLIEETENLAELiidleelkLQELKLKEQAKKALEYYQLKEKLELEEEyllyldylkLNEERIDLLqellr 247
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   429 -EQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLK 507
Cdd:pfam02463  248 dEQEEIESSKQEIEKEEEKLAQVLKENKEEEKEKKLQEEELKLLAKEEEELKSELLKLERRKVDDEEKLKESEKEKKKAE 327
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   508 ARIKEQNAKLLQLTQERAKWEAKS------KASGAALGGENAQQEQLNAAFAHK--QLIINQIKDKVENISKEIESKKED 579
Cdd:pfam02463  328 KELKKEKEEIEELEKELKELEIKReaeeeeEEELEKLQEKLEQLEEELLAKKKLesERLSSAAKLKEEELELKSEEEKEA 407
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730   580 INTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKNETSVSS 630
Cdd:pfam02463  408 QLLLELARQLEDLLKEEKKEELEILEEEEESIELKQGKLTEEKEELEKQEL 458
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
1029-1079 4.41e-07

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 47.70  E-value: 4.41e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1029 KVIALYPYKAQNDDELSF-DKDDIISVLGRDEpEWWRG--ELNGLSGLFPSNYV 1079
Cdd:cd11789     1 RYRAMYDYAAADDDEVSFqEGDVIINVEIIDD-GWMEGtvQRTGQSGMLPANYV 53
SH3_CRK_N cd11758
N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
782-834 4.49e-07

N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The N-terminal SH3 domain of CRK binds a number of target proteins including DOCK180, C3G, SOS, and cABL. The CRK family includes two alternatively spliced protein forms, CRKI and CRKII, that are expressed by the CRK gene, and the CRK-like (CRKL) protein, which is expressed by a distinct gene (CRKL). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212692 [Multi-domain]  Cd Length: 55  Bit Score: 47.74  E-value: 4.49e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  782 EYYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTG--TIGsRTGMFPSNYVQK 834
Cdd:cd11758     1 EYVRALFDFPGNDDEDLPFKKGEILTVIRKPEEqWWNArnSEG-KTGMIPVPYVEK 55
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
372-563 4.67e-07

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 54.29  E-value: 4.67e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERK----QQEELERQLQRQRE----IEMEKEEQRKR------ELEAKEAARKELEKQR---QQEWEQAR-- 432
Cdd:TIGR02168  308 RERLANLERQLEeleaQLEELESKLDELAEelaeLEEKLEELKEElesleaELEELEAELEELESRLeelEEQLETLRsk 387
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   433 IAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRIcdTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKE 512
Cdd:TIGR02168  388 VAQLELQIASLNNEIERLEARLERLEDRRERLQQEIEELLKKL--EEAELKELQAELEELEEELEELQEELERLEEALEE 465
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|..
gi 442628730   513 QNAKLLQLTQERAKWEAKSKASGAALGG-ENAQQEQLNAAFAHKQLIINQIK 563
Cdd:TIGR02168  466 LREELEEAEQALDAAERELAQLQARLDSlERLQENLEGFSEGVKALLKNQSG 517
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
947-1002 4.82e-07

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 47.64  E-value: 4.82e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  947 QVIAPYE--ATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVKV 1002
Cdd:cd11995     2 QVIGMYDytAQNDDELAFSKGQIINVLNKEDPDWWKGELNG-----QVGLFPSNYVKL 54
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
783-833 4.91e-07

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 47.71  E-value: 4.91e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE----WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11884     1 YVVAVRAYITRDQTLLSFHKGDVIKLLPKEGPldpgWLFGTLDGRSGAFPKEYVQ 55
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
786-833 4.93e-07

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 47.49  E-value: 4.93e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11951     4 AQYDFSAEDPSQLSFRRGDIIEVLDCpDPNWWRGRISGRVGFFPRNYVH 52
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
681-731 5.04e-07

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 47.41  E-value: 5.04e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIIlVPLEQNAEpGWLAGEINGHTGWFPESYVE 731
Cdd:cd11959     4 ALYDYQAADDDEISFDPDDII-TNIEMIDE-GWWRGVCRGKYGLFPANYVE 52
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
786-833 5.13e-07

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 47.64  E-value: 5.13e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11927     5 ALYNYEGKEPGDLKFSKGDIIILRRQVDEnWYHGEVNGIHGFFPTNFVQ 53
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
946-1000 5.15e-07

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 47.41  E-value: 5.15e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgrRRQIGWFPATYV 1000
Cdd:cd11827     2 CKALYAYDAQDTDELSFNEGDIIEILKEDPSGWWTGRL-----RGKEGLFPGNYV 51
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
786-833 5.16e-07

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 47.34  E-value: 5.16e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11823     4 ALYSYTANREDELSLQPGDIIEVHeKQDDGWWLGELNGKKGIFPATYVE 52
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
681-731 5.17e-07

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 47.49  E-value: 5.17e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVE 731
Cdd:cd12046     4 ALFSYEASQPEDLEFQKGDVILVLSKVNED--WLEGQCKGKIGIFPSAFVE 52
SH3_CSK cd11769
Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr ...
1029-1079 5.22e-07

Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr kinase containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, CSK is translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. CSK catalyzes the tyr phosphorylation of the regulatory C-terminal tail of Src kinases, resulting in their inactivation. It is expressed in a wide variety of tissues and plays a role, as a regulator of Src, in cell proliferation, survival, and differentiation, and consequently, in cancer development and progression. In addition, CSK also shows Src-independent functions. It is a critical component in G-protein signaling, and plays a role in cytoskeletal reorganization and cell migration. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212703 [Multi-domain]  Cd Length: 57  Bit Score: 47.68  E-value: 5.22e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDE-PEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11769     3 ECIAKYNFNGASEEDLPFKKGDILTIVAVTKdPNWYKAKnKDGREGMIPANYV 55
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
949-1001 5.22e-07

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 47.62  E-value: 5.22e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  949 IAPYE--ATSTEQLSLTRGQLIMI-RKKTDSGWWEGELQakGRrrqIGWFPATYVK 1001
Cdd:cd11830     3 KARYDfcARDMRELSLKEGDVVKIyNKKGQQGWWRGEIN--GR---IGWFPSTYVE 53
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
948-1001 5.39e-07

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 47.25  E-value: 5.39e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWegELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11856     4 AIADYEAQGDDEISLQEGEVVEVLEKNDSGWW--YVRKGDKE---GWVPASYLE 52
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
958-1000 5.44e-07

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 47.51  E-value: 5.44e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 442628730  958 EQLSLTRGQLIMIRKKTDSGWWEGElqAKGRRrqiGWFPATYV 1000
Cdd:cd11829    15 QGLSFEAGELIRVLQAPDGGWWEGE--KDGLR---GWFPASYV 52
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
680-733 6.17e-07

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 47.20  E-value: 6.17e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd12057     3 KVLFPYEAQNEDELTIKEGDIVTLISKDCIDAGWWEGELNGRRGVFPDNFVKLL 56
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
783-832 6.31e-07

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 47.07  E-value: 6.31e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNYV 832
Cdd:cd12142     1 YCRVLFDYNPVAPDELALKKGDVIEVISKETEdegWWEGELNGRRGFFPDNFV 53
SH3_Cyk3p-like cd11889
Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 ...
1029-1079 6.46e-07

Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 (Cyk3 or Cyk3p) is a component of the actomyosin ring independent cytokinesis pathway in yeast. It interacts with Inn1 and facilitates its recruitment to the bud neck, thereby promoting cytokinesis. Cyk3p contains an N-terminal SH3 domain and a C-terminal transglutaminase-like domain. The Cyk3p SH3 domain binds to the C-terminal proline-rich region of Inn1. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212822  Cd Length: 53  Bit Score: 47.11  E-value: 6.46e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNYV 1079
Cdd:cd11889     1 KVKAVYSWAGETEGDLGFLEGDLIEVLSIGDGSWWSGKLrrNGAEGIFPSNFV 53
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
946-1001 6.68e-07

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 46.98  E-value: 6.68e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSgWWEGELqakgRRRQIGWFPATYVK 1001
Cdd:cd11837     2 ATALYPWRAKKENHLSFAKGDIITVLEQQEM-WWFGEL----EGGEEGWFPKSYVK 52
SH3_BAIAP2L2 cd11914
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; ...
693-733 6.93e-07

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The related proteins, BAIAP2L1 and IRSp53, function as regulators of membrane dynamics and the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212847 [Multi-domain]  Cd Length: 59  Bit Score: 47.12  E-value: 6.93e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 442628730  693 ITFVPGDII--LVPLEQNaepGWLAGEINGHT--GWFPESYVEKL 733
Cdd:cd11914    18 LRFNRGDIItvLVPEARN---GWLYGKLEGSSrqGWFPEAYVKAL 59
SH3_Brk cd11847
Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called ...
784-832 6.98e-07

Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called PTK6; Brk is a cytoplasmic (or non-receptor) PTK with limited homology to Src kinases. It has been found to be overexpressed in a majority of breast tumors. It plays roles in normal cell differentiation, proliferation, survival, migration, and cell cycle progression. Brk substrates include RNA-binding proteins (SLM-1/2, Sam68), transcription factors (STAT3/5), and signaling molecules (Akt, paxillin, IRS-4). Src kinases in general contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr; they are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation site. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212781 [Multi-domain]  Cd Length: 58  Bit Score: 47.17  E-value: 6.98e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSR------TGMFPSNYV 832
Cdd:cd11847     2 YKALWDFKARGDEELSFQAGDQFRIAERSGDWWTALKLDRaggvvaQGFVPNNYL 56
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
372-528 7.10e-07

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 53.77  E-value: 7.10e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQ-REIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:COG4913   308 EAELERLEARLDALREELDELEAQiRGNGGDRLEQLEREIERLERELEERERRRARLEALLAALGLPLPASAEEFAALRA 387
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  451 KAHN--TQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQN----------AKLL 518
Cdd:COG4913   388 EAAAllEALEEELEALEEALAEAEAALRDLRRELRELEAEIASLERRKSNIPARLLALRDALAEALgldeaelpfvGELI 467
                         170
                  ....*....|
gi 442628730  519 QLTQERAKWE 528
Cdd:COG4913   468 EVRPEEERWR 477
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
456-614 7.14e-07

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 51.46  E-value: 7.14e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  456 QLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQ---------LTQERAK 526
Cdd:COG1579    21 RLEHRLKELPAELAELEDELAALEARLEAAKTELEDLEKEIKRLELEIEEVEARIKKYEEQLGNvrnnkeyeaLQKEIES 100
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  527 WEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDIntnDVQMSELKAELSALITKC-EDLY 605
Cdd:COG1579   101 LKRRISDLEDEILELMERIEELEEELAELEAELAELEAELEEKKAELDEELAEL---EAELEELEAEREELAAKIpPELL 177

                  ....*....
gi 442628730  606 KEYDVQRTS 614
Cdd:COG1579   178 ALYERIRKR 186
SH3_UBASH3 cd11791
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called ...
1032-1079 7.25e-07

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called TULA (T cell Ubiquitin LigAnd) family of proteins; UBASH3 or TULA proteins are also referred to as Suppressor of T cell receptor Signaling (STS) proteins. They contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. In some vertebrates, there are two TULA family proteins, called UBASH3A (also called TULA or STS-2) and UBASH3B (also called TULA-2 or STS-1), which show partly overlapping as well as distinct functions. UBASH3B is widely expressed while UBASH3A is only found in lymphoid cells. UBASH3A facilitates apoptosis induced in T cells through its interaction with the apoptosis-inducing factor AIF. UBASH3B is an active phosphatase while UBASH3A is not. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212725 [Multi-domain]  Cd Length: 59  Bit Score: 47.30  E-value: 7.25e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISV----LGRDEPEWWRG--ELNGLSGLFPSNYV 1079
Cdd:cd11791     4 VLYPYTPQEEDELELVPGDYIYVspeeLDSSSDGWVEGtsWLTGCSGLLPENYT 57
SH3_CASS4 cd12000
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member 4; ...
1032-1081 7.36e-07

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member 4; CASS4, also called HEPL (HEF1-EFS-p130Cas-like), localizes to focal adhesions and plays a role in regulating FAK activity, focal adhesion integrity, and cell spreading. It is most abundant in blood cells and lung tissue, and is also found in high levels in leukemia and ovarian cell lines. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212933  Cd Length: 57  Bit Score: 47.18  E-value: 7.36e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE---WWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12000     5 ALYDNKADCSDELAFRRGDILTVLEQNVPGsegWWKCLLHGRQGLAPANRLQL 57
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
681-730 7.75e-07

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 46.74  E-value: 7.75e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11812     4 ALYDYTANRSDELTIHRGDIIRV-LYKDNDNWWFGSLVNGQQGYFPANYV 52
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
783-834 8.17e-07

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 46.82  E-value: 8.17e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 442628730   783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTIGSRTGMFPSNYVQK 834
Cdd:pfam07653    1 YGRVIFDYVGTDKNGLTLKKGDVVKVLGKDnDGWWEGETGGRVGLVPSTAVEE 53
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
949-1001 8.29e-07

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 46.94  E-value: 8.29e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  949 IAPYE--ATSTEQLSLTRGQLIMIRKKTDS-GWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd11978     4 IARYDfcARDMRELSLLKGDVVKIYTKMSTnGWWRGEVNGR-----VGWFPSTYVE 54
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
784-834 8.50e-07

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 46.98  E-value: 8.50e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11824     2 YSVLYDYTAQEDDELSISKGDVVAVIEKGEDgWWTVERNGQKGLVPGTYLEK 53
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
1032-1079 8.62e-07

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 46.74  E-value: 8.62e-07
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKA-QNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11829     4 TLYAFTGeQHQQGLSFEAGELIRVLQAPDGGWWEGEKDGLRGWFPASYV 52
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
947-1001 8.80e-07

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 46.69  E-value: 8.80e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRrrqIGWFPATYVK 1001
Cdd:cd11785     3 RVIVPYPPQSEAELELKEGDIVFVHKKREDGWFKGTLQRTGK---TGLFPGSFVE 54
CAF-1_p150 pfam11600
Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide ...
332-451 8.93e-07

Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide subunit of CAF-1, which functions in depositing newly synthesized and acetylated histones H3/H4 into chromatin during DNA replication and repair. CAF-1_p150 includes the HP1 interaction site, the PEST, KER and ED interacting sites. CAF-1_p150 interacts directly with newly synthesized and acetylated histones through the acidic KER and ED domains. The PEST domain is associated with proteins that undergo rapid proteolysis.


Pssm-ID: 402959 [Multi-domain]  Cd Length: 164  Bit Score: 50.07  E-value: 8.93e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   332 KRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERkQQEELERQLQRQREIEmEKEEQRKRELE 411
Cdd:pfam11600    1 RRSQKSVQSQEEKEKQRLEKDKERLRRQLKLEAEKEEKERLKEEAKAEKER-AKEEARRKKEEEKELK-EKERREKKEKD 78
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|.
gi 442628730   412 AKEAARK-ELEKQRQQEWEQARIAEMNAQKEREQERVLKQK 451
Cdd:pfam11600   79 EKEKAEKlRLKEEKRKEKQEALEAKLEEKRKKEEEKRLKEE 119
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1029-1079 9.22e-07

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 46.76  E-value: 9.22e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPE-WWRGELNGLSGLFPSNYV 1079
Cdd:cd12053     1 EYIVEYDYDAVHEDELTIRVGEIIRNVKKLEEEgWLEGELNGRRGMFPDNFV 52
SH3_CRK_N cd11758
N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
1029-1079 9.64e-07

N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The N-terminal SH3 domain of CRK binds a number of target proteins including DOCK180, C3G, SOS, and cABL. The CRK family includes two alternatively spliced protein forms, CRKI and CRKII, that are expressed by the CRK gene, and the CRK-like (CRKL) protein, which is expressed by a distinct gene (CRKL). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212692 [Multi-domain]  Cd Length: 55  Bit Score: 46.59  E-value: 9.64e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11758     2 YVRALFDFPGNDDEDLPFKKGEILTVIRKPEEQWWNARnSEGKTGMIPVPYV 53
SH3_Alpha_Spectrin cd11808
Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red ...
1029-1079 9.66e-07

Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red blood cell membrane skeleton and is important in erythropoiesis and membrane biogenesis. It is a flexible, rope-like molecule composed of two subunits, alpha and beta, which consist of many spectrin-type repeats. Alpha and beta spectrin associate to form heterodimers and tetramers; spectrin tetramer formation is critical for red cell shape and deformability. Defects in alpha spectrin have been associated with inherited hemolytic anemias including hereditary spherocytosis (HSp), hereditary elliptocytosis (HE), and hereditary pyropoikilocytosis (HPP). Alpha spectrin contains a middle SH3 domain and a C-terminal EF-hand binding motif in addition to multiple spectrin repeats. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212742 [Multi-domain]  Cd Length: 53  Bit Score: 46.71  E-value: 9.66e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11808     1 CVVALYDYQEKSPREVSMKKGDILTLLNSSNKDWWKVEVNDRQGFVPAAYV 51
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
372-578 9.70e-07

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 52.46  E-value: 9.70e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQE----ELERQLqRQREIEMEKEEQRKRELEAKEAA-RKELEKQRQQEWEQARIAEMNAQKEREQer 446
Cdd:COG4942    47 KKEEKALLKQLAALErriaALARRI-RALEQELAALEAELAELEKEIAElRAELEAQKEELAELLRALYRLGRQPPLA-- 123
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  447 VLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDtsmsEMSQLKARIKEQNAKLLQLTQERAK 526
Cdd:COG4942   124 LLLSPEDFLDAVRRLQYLKYLAPARREQAEELRADLAELAALRAELEAERA----ELEALLAELEEERAALEALKAERQK 199
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  527 WEAKSkasgaalggeNAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKE 578
Cdd:COG4942   200 LLARL----------EKELAELAAELAELQQEAEELEALIARLEAEAAAAAE 241
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
680-731 9.92e-07

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 46.76  E-value: 9.92e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11949     3 QALFDFDPQEDGELGFRRGDFIEVM--DNSDPNWWKGACHGQTGMFPRNYVT 52
SH3_GRAF cd12064
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also ...
1029-1079 9.95e-07

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also called Rho GTPase activating protein 26 (ARHGAP26), Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with activity towards RhoA and Cdc42 and is only weakly active towards Rac1. It influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase (FAK), which is a critical component of integrin signaling. It is essential for the major clathrin-independent endocytic pathway mediated by pleiomorphic membranes. GRAF contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212997  Cd Length: 56  Bit Score: 46.65  E-value: 9.95e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDII-SVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12064     2 KAKALYACKAEHDSELSFTAGTVFdNVHPSQEPGWLEGTLNGKTGLIPENYV 53
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
786-833 9.96e-07

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 46.52  E-value: 9.96e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11882     4 ALYACKAEDESELSFEPGQIITNVQPSDEpgWLEGTLNGRTGLIPENYVE 53
SH3_Fyn_Yrk cd12006
Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) ...
784-832 1.00e-06

Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) are members of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Fyn, together with Lck, plays a critical role in T-cell signal transduction by phosphorylating ITAM (immunoreceptor tyr activation motif) sequences on T-cell receptors, ultimately leading to the proliferation and differentiation of T-cells. In addition, Fyn is involved in the myelination of neurons, and is implicated in Alzheimer's and Parkinson's diseases. Yrk has been detected only in chickens. It is primarily found in neuronal and epithelial cells and in macrophages. It may play a role in inflammation and in response to injury. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212939 [Multi-domain]  Cd Length: 56  Bit Score: 46.58  E-value: 1.00e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTG---TIGSrTGMFPSNYV 832
Cdd:cd12006     3 FVALYDYEARTEDDLSFHKGEKFQILNSsEGDWWEArslTTGE-TGYIPSNYV 54
SH3_GRAF2 cd12065
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also ...
678-731 1.00e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also called Rho GTPase activating protein 10 (ARHGAP10) or PS-GAP, is a GAP with activity towards Cdc42 and RhoA. It regulates caspase-activated p21-activated protein kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34, leading to its stabilization and decrease of cell death. It is highly expressed in skeletal muscle, and is involved in alpha-catenin recruitment at cell-cell junctions. GRAF2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212998 [Multi-domain]  Cd Length: 54  Bit Score: 46.52  E-value: 1.00e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGdIILVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd12065     1 KAKAVYPCEAEHSSELSFEVG-AIFEDVTLSREPGWLEGTLNGKRGLIPENYVE 53
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
370-452 1.01e-06

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 52.50  E-value: 1.01e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  370 ADKREKARLEAERKQQEELERQL---QRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQER 446
Cdd:PRK09510   75 KRAEEQRKKKEQQQAEELQQKQAaeqERLKQLEKERLAAQEQKKQAEEAAKQAALKQKQAEEAAAKAAAAAKAKAEAEAK 154

                  ....*.
gi 442628730  447 VLKQKA 452
Cdd:PRK09510  155 RAAAAA 160
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
948-1000 1.05e-06

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 46.55  E-value: 1.05e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRrrqIGWFPATYV 1000
Cdd:cd11826     4 ALYDYTADKDDELSFQEGDIIYVTKKNDDGWYEGVL--NGV---TGLFPGNYV 51
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
372-617 1.06e-06

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 53.14  E-value: 1.06e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREiEMEKEEQRKRELEAKE-AARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:PRK03918  175 KRRIERLEKFIKRTENIEELIKEKEK-ELEEVLREINEISSELpELREELEKLEKEVKELEELKEEIEELEKELESLEGS 253
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  451 KAhntqlnvelsTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDtSMSEMSQLKARIKEQNAKLLQLTQERAKWEAK 530
Cdd:PRK03918  254 KR----------KLEEKIRELEERIEELKKEIEELEEKVKELKELKE-KAEEYIKLSEFYEEYLDELREIEKRLSRLEEE 322
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  531 SkasgaalggeNAQQEQLNAAfAHKQLIINQIKDKVENISKEIESKKEDINTND------VQMSELKAELSAL-ITKCED 603
Cdd:PRK03918  323 I----------NGIEERIKEL-EEKEERLEELKKKLKELEKRLEELEERHELYEeakakkEELERLKKRLTGLtPEKLEK 391
                         250
                  ....*....|....
gi 442628730  604 LYKEYDVQRTSVLE 617
Cdd:PRK03918  392 ELEELEKAKEEIEE 405
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
952-1001 1.07e-06

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 46.56  E-value: 1.07e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakGRRRQiGWFPATYVK 1001
Cdd:cd11825     8 YRAQRPDELSFCKHAIITNVEKEDGGWWRGDY---GGKKQ-KWFPANYVE 53
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
783-834 1.08e-06

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 46.60  E-value: 1.08e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK---EG--EWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11800     1 YYYALYTFEARSPGELSVTEGQVVTVLEKhdlKGnpEWWLVEDRGKQGYVPSNYLAK 57
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
952-1002 1.10e-06

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 46.47  E-value: 1.10e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYVKV 1002
Cdd:cd11805     8 FNPQEPGELEFRRGDIITVLDSSDPDWWKGEL--RGRV---GIFPANYVQP 53
SH3_CAS cd11844
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins ...
1032-1077 1.11e-06

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes including migration, chemotaxis, apoptosis, differentiation, and progenitor cell function. They mediate the signaling of integrins at focal adhesions where they localize, and thus, regulate cell invasion and survival. Over-expression of these proteins is implicated in poor prognosis, increased metastasis, and resistance to chemotherapeutics in many cancers such as breast, lung, melanoma, and glioblastoma. CAS proteins have also been linked to the pathogenesis of inflammatory disorders, Alzheimer's, Parkinson's, and developmental defects. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. Vertebrates contain four CAS proteins: BCAR1 (or p130Cas), NEDD9 (or HEF1), EFS (or SIN), and CASS4 (or HEPL). The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212778  Cd Length: 56  Bit Score: 46.57  E-value: 1.11e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE---WWRGELNGLSGLFPSN 1077
Cdd:cd11844     4 ALYDNVAESPDELAFRRGDILTVLEQNTAGlegWWLCSLRGRQGIAPGN 52
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
785-833 1.16e-06

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 46.26  E-value: 1.16e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11959     3 VALYDYQAADDDEISFDPDDIITNIEMIDEgWWRGVCRGKYGLFPANYVE 52
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
681-731 1.18e-06

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 46.49  E-value: 1.18e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQnaEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11995     5 GMYDYTAQNDDELAFSKGQIINVLNKE--DPDWWKGELNGQVGLFPSNYVK 53
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
1027-1079 1.19e-06

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 46.56  E-value: 1.19e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730 1027 LDKVIAlyPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNG-----LSGLFPSNYV 1079
Cdd:cd11839     1 IAQVIA--PFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQArgkkrQIGWFPANYV 56
SH3_Lck cd12005
Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of ...
785-834 1.23e-06

Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lck is expressed in T-cells and natural killer cells. It plays a critical role in T-cell maturation, activation, and T-cell receptor (TCR) signaling. Lck phosphorylates ITAM (immunoreceptor tyr activation motif) sequences on several subunits of TCRs, leading to the activation of different second messenger cascades. Phosphorylated ITAMs serve as binding sites for other signaling factor such as Syk and ZAP-70, leading to their activation and propagation of downstream events. In addition, Lck regulates drug-induced apoptosis by interfering with the mitochondrial death pathway. The apototic role of Lck is independent of its primary function in T-cell signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212938 [Multi-domain]  Cd Length: 54  Bit Score: 46.36  E-value: 1.23e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTG---TIGSRtGMFPSNYVQK 834
Cdd:cd12005     3 VALYSYEPSHDGDLGFEKGEKLRILEQSGEWWKAqslTTGQE-GFIPFNFVAK 54
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
785-833 1.23e-06

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 46.36  E-value: 1.23e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12073     4 VALYDYQGEGDDEISFDPQETITDIEMVDEgWWKGTCHGHRGLFPANYVE 53
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
950-1002 1.24e-06

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 46.50  E-value: 1.24e-06
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  950 APYEATSTEQ---LSLTRGQLIMIRKKTD-----SGWWegelqaKGRRR--QIGWFPATYVKV 1002
Cdd:cd11771     4 ALYDFTPENPemeLSLKKGDIVAVLSKTDplgrdSEWW------KGRTRdgRIGWFPSNYVEV 60
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
294-512 1.25e-06

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 52.63  E-value: 1.25e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  294 RPGSQPASRHASVSSQSGVGVVDADPTAGLPGQTSFEDkrkenyVKGQAELDRRRKIMEDQQRKEREERERKEREEADKR 373
Cdd:COG1196   583 RARAALAAALARGAIGAAVDLVASDLREADARYYVLGD------TLLGRTLVAARLEAALRRAVTLAGRLREVTLEGEGG 656
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  374 EKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAH 453
Cdd:COG1196   657 SAGGSLTGGSRRELLAALLEAEAELEELAERLAEEELELEEALLAEEEEERELAEAEEERLEEELEEEALEEQLEAEREE 736
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  454 NTQLNVE------------------LSTLNEKIKELSQRIcdTRAGVTN---------VKTVIDGMRTQRDTSMSEMSQL 506
Cdd:COG1196   737 LLEELLEeeelleeealeelpeppdLEELERELERLEREI--EALGPVNllaieeyeeLEERYDFLSEQREDLEEARETL 814

                  ....*.
gi 442628730  507 KARIKE 512
Cdd:COG1196   815 EEAIEE 820
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
378-600 1.26e-06

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 52.72  E-value: 1.26e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   378 LEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQarIAEMNAQKEREQERVLKQKAHNTQL 457
Cdd:TIGR04523  459 LDNTRESLETQLKVLSRSINKIKQNLEQKQKELKSKEKELKKLNEEKKELEEK--VKDLTKKISSLKEKIEKLESEKKEK 536
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   458 NVELSTLNEKIKELsqricDTRAGVTNVKTVIDG-------MRTQRDTSMSEMSQLKARIKEQNA--------------K 516
Cdd:TIGR04523  537 ESKISDLEDELNKD-----DFELKKENLEKEIDEknkeieeLKQTQKSLKKKQEEKQELIDQKEKekkdlikeieekekK 611
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   517 LLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSA 596
Cdd:TIGR04523  612 ISSLEKELEKAKKENEKLSSIIKNIKSKKNKLKQEVKQIKETIKEIRNKWPEIIKKIKESKTKIDDIIELMKDWLKELSL 691

                   ....
gi 442628730   597 LITK 600
Cdd:TIGR04523  692 HYKK 695
PRK12704 PRK12704
phosphodiesterase; Provisional
374-533 1.29e-06

phosphodiesterase; Provisional


Pssm-ID: 237177 [Multi-domain]  Cd Length: 520  Bit Score: 52.47  E-value: 1.29e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  374 EKARLEAERKQQEEL----ERQLQRQREIEMEKEEqRKRELEAKEaaRKELEKQRQQEWEQARIAEMNAQKEREQERVLK 449
Cdd:PRK12704   45 EEAKKEAEAIKKEALleakEEIHKLRNEFEKELRE-RRNELQKLE--KRLLQKEENLDRKLELLEKREEELEKKEKELEQ 121
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  450 QKAHNTQLNVELSTLNEKIKELSQRIcdtrAGVTN--VKTVIdgmrtqrdtsmseMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:PRK12704  122 KQQELEKKEEELEELIEEQLQELERI----SGLTAeeAKEIL-------------LEKVEEEARHEAAVLIKEIEEEAKE 184

                  ....*.
gi 442628730  528 EAKSKA 533
Cdd:PRK12704  185 EADKKA 190
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
691-730 1.36e-06

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 46.19  E-value: 1.36e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 442628730  691 EEITFVPGDIILVplEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11796    14 EELDLREGDVVTI--TGILDKGWFRGELNGRRGIFPEGFV 51
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
373-525 1.41e-06

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 52.61  E-value: 1.41e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  373 REKARLEAERKQQEELERQLQRQREiEMEKEEQRKRELEAKEAA----RKELEKQRQQEwEQARIAEMNAQKEREQERvL 448
Cdd:COG4913   278 RAALRLWFAQRRLELLEAELEELRA-ELARLEAELERLEARLDAlreeLDELEAQIRGN-GGDRLEQLEREIERLERE-L 354
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  449 KQKAHNtqlnveLSTLNEKIKELSQRICDTRAGVT----NVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQER 524
Cdd:COG4913   355 EERERR------RARLEALLAALGLPLPASAEEFAalraEAAALLEALEEELEALEEALAEAEAALRDLRRELRELEAEI 428

                  .
gi 442628730  525 A 525
Cdd:COG4913   429 A 429
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
1031-1076 1.53e-06

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 45.89  E-value: 1.53e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPS 1076
Cdd:cd11832     3 IAVKSYSPQEEGEISLHKGDRVKVLSIGEGGFWEGSVRGRTGWFPS 48
SH3_ITK cd11908
Src Homology 3 domain of Interleukin-2-inducible T-cell Kinase; ITK (also known as Tsk or Emt) ...
1030-1079 1.55e-06

Src Homology 3 domain of Interleukin-2-inducible T-cell Kinase; ITK (also known as Tsk or Emt) is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. ITK is expressed in T-cells and mast cells, and is important in their development and differentiation. Of the three Tec kinases expressed in T-cells, ITK plays the predominant role in T-cell receptor (TCR) signaling. It is activated by phosphorylation upon TCR crosslinking and is involved in the pathway resulting in phospholipase C-gamma1 activation and actin polymerization. It also plays a role in the downstream signaling of the T-cell costimulatory receptor CD28, the T-cell surface receptor CD2, and the chemokine receptor CXCR4. In addition, ITK is crucial for the development of T-helper(Th)2 effector responses. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212841 [Multi-domain]  Cd Length: 56  Bit Score: 46.16  E-value: 1.55e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWR-GELNGLSGLFPSNYV 1079
Cdd:cd11908     3 VIALYDYQTNDPQELALRYNEEYHLLDSSEIHWWRvQDKNGHEGYVPSSYL 53
SH3_GRAF3 cd12066
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is ...
680-733 1.56e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is also called Rho GTPase activating protein 42 (ARHGAP42) or ARHGAP10-like. Though its function has not been characterized, it may be a GAP with activity towards RhoA and Cdc42, based on its similarity to GRAF and GRAF2. It contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212999  Cd Length: 55  Bit Score: 46.21  E-value: 1.56e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFvPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd12066     3 KAMYSCKAEHSHELSF-PQGAIFSNVYPSVEPGWLKATYEGKTGLVPENYVVFL 55
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
786-833 1.60e-06

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 46.07  E-value: 1.60e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11928     5 ALYSYEGKEPGDLKFNKGDIIILRRKVDEnWYHGELNGCHGFLPASYIQ 53
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
786-834 1.65e-06

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 46.14  E-value: 1.65e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12055     4 VAFSYLPQNEDELELKVGDIIEVVGEvEEGWWEGVLNGKTGMFPSNFIKE 53
PTZ00121 PTZ00121
MAEBL; Provisional
329-612 1.65e-06

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 52.45  E-value: 1.65e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  329 FEDKRKENyvKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARlEAERKQQEELERQLQRQREIEmekEEQRKR 408
Cdd:PTZ00121 1100 AEEAKKTE--TGKAEEARKAEEAKKKAEDARKAEEARKAEDARKAEEAR-KAEDAKRVEIARKAEDARKAE---EARKAE 1173
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  409 ELEAKEAARKELEKQRQQEW---EQARIAE--MNAQKEREQERVLK----------QKAHNTQLNVELSTLNEKIKELSQ 473
Cdd:PTZ00121 1174 DAKKAEAARKAEEVRKAEELrkaEDARKAEaaRKAEEERKAEEARKaedakkaeavKKAEEAKKDAEEAKKAEEERNNEE 1253
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  474 RICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAK----LLQLTQERAKWEAKSKASGAALGGENAQQ--EQ 547
Cdd:PTZ00121 1254 IRKFEEARMAHFARRQAAIKAEEARKADELKKAEEKKKADEAKkaeeKKKADEAKKKAEEAKKADEAKKKAEEAKKkaDA 1333
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  548 LNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQR 612
Cdd:PTZ00121 1334 AKKKAEEAKKAAEAAKAEAEAAADEAEAAEEKAEAAEKKKEEAKKKADAAKKKAEEKKKADEAKK 1398
SH3_BTK cd11906
Src Homology 3 domain of Bruton's tyrosine kinase; BTK is a cytoplasmic (or nonreceptor) tyr ...
1029-1079 1.65e-06

Src Homology 3 domain of Bruton's tyrosine kinase; BTK is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain with proline-rich and zinc-binding regions. Btk is expressed in B-cells, and a variety of myeloid cells including mast cells, platelets, neutrophils, and dendrictic cells. It interacts with a variety of partners, from cytosolic proteins to nuclear transcription factors, suggesting a diversity of functions. Stimulation of a diverse array of cell surface receptors, including antigen engagement of the B-cell receptor (BCR), leads to PH-mediated membrane translocation of Btk and subsequent phosphorylation by Src kinase and activation. Btk plays an important role in the life cycle of B-cells including their development, differentiation, proliferation, survival, and apoptosis. Mutations in Btk cause the primary immunodeficiency disease, X-linked agammaglobulinaemia (XLA) in humans. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212839 [Multi-domain]  Cd Length: 55  Bit Score: 45.97  E-value: 1.65e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG-ELNGLSGLFPSNYV 1079
Cdd:cd11906     2 KVVALYDYTPMNAQDLQLRKGEEYVILEESNLPWWRArDKNGREGYIPSNYV 53
SH3_UBASH3 cd11791
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called ...
679-732 1.68e-06

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called TULA (T cell Ubiquitin LigAnd) family of proteins; UBASH3 or TULA proteins are also referred to as Suppressor of T cell receptor Signaling (STS) proteins. They contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. In some vertebrates, there are two TULA family proteins, called UBASH3A (also called TULA or STS-2) and UBASH3B (also called TULA-2 or STS-1), which show partly overlapping as well as distinct functions. UBASH3B is widely expressed while UBASH3A is only found in lymphoid cells. UBASH3A facilitates apoptosis induced in T cells through its interaction with the apoptosis-inducing factor AIF. UBASH3B is an active phosphatase while UBASH3A is not. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212725 [Multi-domain]  Cd Length: 59  Bit Score: 46.14  E-value: 1.68e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILV-PLEQNAEP-GWLAG--EINGHTGWFPESYVEK 732
Cdd:cd11791     2 LRVLYPYTPQEEDELELVPGDYIYVsPEELDSSSdGWVEGtsWLTGCSGLLPENYTEK 59
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
952-1000 1.69e-06

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 46.18  E-value: 1.69e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYV 1000
Cdd:cd11901    10 YTAEREDELSLVKGTKVIVMEKCSDGWWRGSYNG-----QVGWFPSNYV 53
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1031-1079 1.70e-06

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 46.02  E-value: 1.70e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11815     3 VVLHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYRGKCKNTTGIFPANHV 51
CCDC34 pfam13904
Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several ...
373-470 1.70e-06

Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several conserved tryptophan residues. The function is not known.


Pssm-ID: 464032 [Multi-domain]  Cd Length: 221  Bit Score: 50.09  E-value: 1.70e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   373 REKARLEAERKQQEELE-----RQLQRQREIEMEKEEQRKREleAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERV 447
Cdd:pfam13904   42 RKLEGLKLERQPLEAYEnwlaaKQRQRQKELQAQKEEREKEE--QEAELRKRLAKEKYQEWLQRKARQQTKKREESHKQK 119
                           90       100
                   ....*....|....*....|...
gi 442628730   448 LKQKAHNTQLNVELSTLNEKIKE 470
Cdd:pfam13904  120 AAESASKSLAKPERKVSQEEAKE 142
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1029-1079 1.75e-06

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 45.80  E-value: 1.75e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11782     1 EARAKYNFNADTGVELSFRKGDVITLTRRVDENWYEGRIGGRQGIFPVSYV 51
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
681-731 1.79e-06

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 45.77  E-value: 1.79e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIIlVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11819     4 ALYDYQAAEDNEISFVEGDII-TQIEQIDEGWWLGVNAKGQKGLFPANYVE 53
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
676-731 1.87e-06

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 46.12  E-value: 1.87e-06
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  676 FVKyqAVYEFNARNAE-EITFVPGDIILV-----PLEQNAEpgWLAGEI-NGHTGWFPESYVE 731
Cdd:cd11771     1 FCR--ALYDFTPENPEmELSLKKGDIVAVlsktdPLGRDSE--WWKGRTrDGRIGWFPSNYVE 59
ERM_helical pfam20492
Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related ...
377-473 1.91e-06

Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related proteins, ezrin, radixin and moesin. Ezrin was first identified as a constituent of microvilli, radixin as a barbed, end-capping actin-modulating protein from isolated junctional fractions, and moesin as a heparin binding protein. A tumour suppressor molecule responsible for neurofibromatosis type 2 (NF2) is highly similar to ERM proteins and has been designated merlin (moesin-ezrin-radixin-like protein). ERM molecules contain 3 domains, an N-terminal globular domain, an extended alpha-helical domain and a charged C-terminal domain (pfam00769). Ezrin, radixin and merlin also contain a polyproline linker region between the helical and C-terminal domains. The N-terminal domain is highly conserved and is also found in merlin, band 4.1 proteins and members of the band 4.1 superfamily, designated the FERM domain. ERM proteins crosslink actin filaments with plasma membranes. They co-localize with CD44 at actin filament plasma membrane interaction sites, associating with CD44 via their N-terminal domains and with actin filaments via their C-terminal domains. This is the alpha-helical domain, which is involved in intramolecular masking of protein-protein interaction sites, regulating the activity of this proteins.


Pssm-ID: 466641 [Multi-domain]  Cd Length: 120  Bit Score: 47.99  E-value: 1.91e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   377 RLEAERKQQeELERQLQ------RQREIEMEKEEQRKRELEAK----EAARKELEKQRQQ-EWEQARIAEMNAQKEREQE 445
Cdd:pfam20492    1 REEAEREKQ-ELEERLKqyeeetKKAQEELEESEETAEELEEErrqaEEEAERLEQKRQEaEEEKERLEESAEMEAEEKE 79
                           90       100
                   ....*....|....*....|....*...
gi 442628730   446 rvlkqkahntQLNVELSTLNEKIKELSQ 473
Cdd:pfam20492   80 ----------QLEAELAEAQEEIARLEE 97
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
786-833 1.96e-06

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 45.71  E-value: 1.96e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11803     5 ALYDFEPENEGELGFKEGDIITLTNQIDEnWYEGMVNGQSGFFPVNYVE 53
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
1029-1081 1.97e-06

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 45.98  E-value: 1.97e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd11870     1 QVVALHRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGHSDGRVGIFPKCFVVP 53
SH3_RIM-BP_2 cd12012
Second Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs ...
1031-1079 2.14e-06

Second Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212945  Cd Length: 62  Bit Score: 46.13  E-value: 2.14e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730 1031 IALYPYKAQ----NDD----ELSFDKDDIISVLG-RDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12012     3 VALFDYDPLtmspNPDaaeeELPFKEGQLIKVYGdKDADGFYLGEINGRRGLVPCNMV 60
PTZ00121 PTZ00121
MAEBL; Provisional
330-625 2.18e-06

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 52.07  E-value: 2.18e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAEldRRRKIMEDQQRKEREERERKEREEADKREKA----RLEAERKQQEELERQLQRQR---EIEMEK 402
Cdd:PTZ00121 1402 EDKKKADELKKAAA--AKKKADEAKKKAEEKKKADEAKKKAEEAKKAdeakKKAEEAKKAEEAKKKAEEAKkadEAKKKA 1479
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  403 EEQRKRElEAK---EAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKqKAHNTQLNVELSTLNEKIKELSQRICDTR 479
Cdd:PTZ00121 1480 EEAKKAD-EAKkkaEEAKKKADEAKKAAEAKKKADEAKKAEEAKKADEAK-KAEEAKKADEAKKAEEKKKADELKKAEEL 1557
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  480 AGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQnaKLLQLTQERAKWEAKSKASGAalggENAQQEQLNAafahkqlii 559
Cdd:PTZ00121 1558 KKAEEKKKAEEAKKAEEDKNMALRKAEEAKKAEE--ARIEEVMKLYEEEKKMKAEEA----KKAEEAKIKA--------- 1622
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  560 NQIKdKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKNE 625
Cdd:PTZ00121 1623 EELK-KAEEEKKKVEQLKKKEAEEKKKAEELKKAEEENKIKAAEEAKKAEEDKKKAEEAKKAEEDE 1687
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
785-831 2.26e-06

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 45.55  E-value: 2.26e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNY 831
Cdd:cd11817     3 VALYDFTGETEEDLSFQRGDRILVTEHlDAEWSRGRLNGREGIFPRAF 50
SH3_Blk cd12009
Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of ...
1030-1081 2.38e-06

Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. It is expressed specifically in B-cells and is involved in pre-BCR (B-cell receptor) signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212942 [Multi-domain]  Cd Length: 54  Bit Score: 45.58  E-value: 2.38e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEpEWW--RGELNGLSGLFPSNYVGP 1081
Cdd:cd12009     2 VIAQYDFVPSNERDLQLKKGEKLQVLKSDG-EWWlaKSLTTGKEGYIPSNYVAR 54
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
1032-1081 2.47e-06

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 45.75  E-value: 2.47e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG--ELNGLSGLFPSNYVGP 1081
Cdd:cd11916     6 ALYSYAPQNDDELELRDGDIVDVMEKCDDGWFVGtsRRTKQFGTFPGNYVKL 57
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
1030-1079 2.54e-06

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 45.40  E-value: 2.54e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLgRDEPE-WWRGE--LNGLSGLFPSNYV 1079
Cdd:cd11793     2 VQCVHAYTAQQPDELTLEEGDVVNVL-RKMPDgWYEGErlRDGERGWFPSSYT 53
MAD pfam05557
Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint ...
334-624 2.57e-06

Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint (Mitotic arrest deficient or MAD) proteins. The mitotic spindle checkpoint monitors proper attachment of the bipolar spindle to the kinetochores of aligned sister chromatids and causes a cell cycle arrest in prometaphase when failures occur. Multiple components of the mitotic spindle checkpoint have been identified in yeast and higher eukaryotes. In S.cerevisiae, the existence of a Mad1-dependent complex containing Mad2, Mad3, Bub3 and Cdc20 has been demonstrated.


Pssm-ID: 461677 [Multi-domain]  Cd Length: 660  Bit Score: 51.67  E-value: 2.57e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   334 KENYVKGQAELDRRRKIMEDQQRKEREERErkereeaDKREKAR--LEAERKQQEELERQLQRQreiEMEKEEQRKRELE 411
Cdd:pfam05557   67 AEEALREQAELNRLKKKYLEALNKKLNEKE-------SQLADARevISCLKNELSELRRQIQRA---ELELQSTNSELEE 136
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   412 AKEaaRKELEKQRQQEWEQaRIAEMNAQKEreqervlkqkahntqlnvELSTLNEKIKELSQRICDTRAGVTNVKTVidg 491
Cdd:pfam05557  137 LQE--RLDLLKAKASEAEQ-LRQNLEKQQS------------------SLAEAEQRIKELEFEIQSQEQDSEIVKNS--- 192
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   492 mrTQRDTSMSEMSQLKARIKEQNAKL-------LQLTQERAKWEAK------SKASGAALGGENAQ-QEQLNaafAHKQL 557
Cdd:pfam05557  193 --KSELARIPELEKELERLREHNKHLnenienkLLLKEEVEDLKRKlereekYREEAATLELEKEKlEQELQ---SWVKL 267
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   558 IINQIKDKV--ENISKEIES-KKEDINTNDvQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKN 624
Cdd:pfam05557  268 AQDTGLNLRspEDLSRRIEQlQQREIVLKE-ENSSLTSSARQLEKARRELEQELAQYLKKIEDLNKKLKR 336
SH3_PEX13_eumet cd11864
Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and ...
680-731 2.58e-06

Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and is required for protein import into the peroxisomal matrix and membrane. It is an integral membrane protein that is essential for the localization of PEX14 and the import of proteins containing the peroxisome matrix targeting signals, PTS1 and PTS2. Mutations of the PEX13 gene in humans lead to a wide range of peroxisome biogenesis disorders (PBDs), the most severe of which is known as Zellweger syndrome (ZS), a severe multisystem disorder characterized by hypotonia, psychomotor retardation, and neuronal migration defects. PEX13 contains two transmembrane regions and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212798  Cd Length: 58  Bit Score: 45.70  E-value: 2.58e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILV-PLE-QNAEPGW-LAGEINGHTGWFPESYVE 731
Cdd:cd11864     3 RAEYDFVAESEDELSFRAGDKLRLaPKElQPRVRGWlLATVDGQKIGLVPANYVK 57
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
347-445 2.62e-06

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 51.49  E-value: 2.62e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   347 RRKIMEDQQRKEreererkereeadKREKARLEAERKQQEELERQL--QRQREIEMEKEE----QRKRELeAKEAARKEL 420
Cdd:pfam15709  429 RRKLQELQRKKQ-------------QEEAERAEAEKQRQKELEMQLaeEQKRLMEMAEEErleyQRQKQE-AEEKARLEA 494
                           90       100
                   ....*....|....*....|....*
gi 442628730   421 EKQRQQEWEQARIAEMNAQKEREQE 445
Cdd:pfam15709  495 EERRQKEEEAARLALEEAMKQAQEQ 519
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
339-451 2.71e-06

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 48.50  E-value: 2.71e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   339 KGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEM---EKEEQRKRELEAKEA 415
Cdd:pfam05672   27 REREEQERLEKEEEERLRKEELRRRAEEERARREEEARRLEEERRREEEERQRKAEEEAEEReqrEQEEQERLQKQKEEA 106
                           90       100       110
                   ....*....|....*....|....*....|....*....
gi 442628730   416 ---ARKELEKQRQqewEQARIaemnAQKErEQERVLKQK 451
Cdd:pfam05672  107 eakAREEAERQRQ---EREKI----MQQE-EQERLERKK 137
SH3_Sho1p cd11855
Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called ...
786-833 2.78e-06

Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called SSU81 (Suppressor of SUA8-1 mutation), is a yeast membrane protein that regulates adaptation to high salt conditions by activating the HOG (high-osmolarity glycerol) pathway. High salt concentrations lead to the localization to the membrane of the MAPKK Pbs2, which is then activated by the MAPKK Ste11 and in turn, activates the MAPK Hog1. Pbs2 is localized to the membrane though the interaction of its PxxP motif with the SH3 domain of Sho1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212789 [Multi-domain]  Cd Length: 55  Bit Score: 45.49  E-value: 2.78e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEE--GDLSFSAGEMVMVIKKEGEWWTGTIGS-RTGMFPSNYVQ 833
Cdd:cd11855     4 ALYPYDASPDdpNELSFEKGEILEVSDTSGKWWQARKSNgETGICPSNYLQ 54
SH3_EFS cd12003
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1032-1079 2.95e-06

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Embryonal Fyn-associated Substrate; EFS is also called HEFS, CASS3 (Cas scaffolding protein family member 3) or SIN (Src-interacting protein). It was identified based on interactions with the Src kinases, Fyn and Yes. It plays a role in thymocyte development and acts as a negative regulator of T cell proliferation. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212936  Cd Length: 62  Bit Score: 45.65  E-value: 2.95e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE---WWRGELNGLSGLFPSNYV 1079
Cdd:cd12003     5 ALYDNAAESPEELSFRRGDVLMVLKREHGSlpgWWLCSLHGQQGIAPANRL 55
SH3_Src cd12008
Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or ...
784-832 2.96e-06

Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or non-receptor) PTK and is the vertebrate homolog of the oncogenic protein (v-Src) from Rous sarcoma virus. Together with other Src subfamily proteins, it is involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. Src also play a role in regulating cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Elevated levels of Src kinase activity have been reported in a variety of human cancers. Several inhibitors of Src have been developed as anti-cancer drugs. Src is also implicated in acute inflammatory responses and osteoclast function. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212941 [Multi-domain]  Cd Length: 56  Bit Score: 45.49  E-value: 2.96e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGS--RTGMFPSNYV 832
Cdd:cd12008     2 FVALYDYESRTETDLSFKKGERLQIVNNtEGDWWLAHSLTtgQTGYIPSNYV 53
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
372-646 3.08e-06

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 50.67  E-value: 3.08e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQERVLKQK 451
Cdd:COG4372     9 GKARLSLFGLRPKTGILIAALSEQLRKALFELDKLQEELEQLREELEQAREELEQL--EEELEQARSELEQLEEELEELN 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  452 AHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKS 531
Cdd:COG4372    87 EQLQAAQAELAQAQEELESLQEEAEELQEELEELQKERQDLEQQRKQLEAQIAELQSEIAEREEELKELEEQLESLQEEL 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  532 KASGAALGGENAQ--QEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYD 609
Cdd:COG4372   167 AALEQELQALSEAeaEQALDELLKEANRNAEKEEELAEAEKLIESLPRELAEELLEAKDSLEAKLGLALSALLDALELEE 246
                         250       260       270
                  ....*....|....*....|....*....|....*..
gi 442628730  610 VQRTSVLELKYNRKNETSVSSAWDTGSSSAWEETGTT 646
Cdd:COG4372   247 DKEELLEEVILKEIEELELAILVEKDTEEEELEIAAL 283
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
945-1001 3.11e-06

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 45.08  E-value: 3.11e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKKTDS--GWWEGELqakgrRRQIGWFPATYVK 1001
Cdd:cd11841     1 EVTALYSFEGQQPCDLSFQAGDRITVLTRTDSqfDWWEGRL-----RGRVGIFPANYVS 54
SH3_GRAF cd12064
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also ...
678-733 3.14e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also called Rho GTPase activating protein 26 (ARHGAP26), Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with activity towards RhoA and Cdc42 and is only weakly active towards Rac1. It influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase (FAK), which is a critical component of integrin signaling. It is essential for the major clathrin-independent endocytic pathway mediated by pleiomorphic membranes. GRAF contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212997  Cd Length: 56  Bit Score: 45.49  E-value: 3.14e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  678 KYQAVYEFNARNAEEITFVPGdIILVPLEQNAEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd12064     2 KAKALYACKAEHDSELSFTAG-TVFDNVHPSQEPGWLEGTLNGKTGLIPENYVEFL 56
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
329-627 3.14e-06

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 51.51  E-value: 3.14e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   329 FEDKRKENYVKGQAELDRRRKIMEdqQRKEREERERKEREEADK-------------REKARLEAERKQQEELERQLQRQ 395
Cdd:pfam02463  168 KRKKKEALKKLIEETENLAELIID--LEELKLQELKLKEQAKKAleyyqlkekleleEEYLLYLDYLKLNEERIDLLQEL 245
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   396 REIEMEKEEQRKRELEAKEA--------ARKELEKQRQQEWEQARIAEMNAQ--KEREQERVLKQKAHNtQLNVELSTLN 465
Cdd:pfam02463  246 LRDEQEEIESSKQEIEKEEEklaqvlkeNKEEEKEKKLQEEELKLLAKEEEElkSELLKLERRKVDDEE-KLKESEKEKK 324
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   466 EKIKELSQRIcDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLK---ARIKEQNAKLLQLTQERAKWEAKSKASGAALGGEN 542
Cdd:pfam02463  325 KAEKELKKEK-EEIEELEKELKELEIKREAEEEEEEELEKLQeklEQLEEELLAKKKLESERLSSAAKLKEEELELKSEE 403
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   543 AQQEQLNAAFAHKQLIINQIKDKVEniSKEIESKKEDINTNDVQMSELKAELSALITKcEDLYKEYDVQRTSVLELKYNR 622
Cdd:pfam02463  404 EKEAQLLLELARQLEDLLKEEKKEE--LEILEEEEESIELKQGKLTEEKEELEKQELK-LLKDELELKKSEDLLKETQLV 480

                   ....*
gi 442628730   623 KNETS 627
Cdd:pfam02463  481 KLQEQ 485
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
946-1001 3.16e-06

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 45.38  E-value: 3.16e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqAKGrrrQIGWFPATYVK 1001
Cdd:cd11819     2 AKALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGVN-AKG---QKGLFPANYVE 53
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
679-731 3.20e-06

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 45.38  E-value: 3.20e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIIlvpleQNAEP---GWLAGEI--NGHTGWFPESYVE 731
Cdd:cd11935     3 YRAMYDYSAQDEDEVSFRDGDYI-----VNVQPideGWMYGTVqrTGRTGMLPANYIE 55
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1031-1079 3.24e-06

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 45.17  E-value: 3.24e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11962     3 VVLYDYEKDEDNEIELVEGEIVTNIEMVDEDWWMGTnSKGESGLFPSNYV 52
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
678-731 3.26e-06

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 45.03  E-value: 3.26e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQnaEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11990     1 KAQALCSWTAKKDNHLNFSKNDIITV-LEQ--QENWWFGEVHGGRGWFPKSYVK 51
SH3_Vinexin_3 cd11918
Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain ...
1032-1081 3.27e-06

Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212851 [Multi-domain]  Cd Length: 58  Bit Score: 45.33  E-value: 3.27e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG--ELNGLSGLFPSNYVGP 1081
Cdd:cd11918     6 AVYQYRPQNEDELELREGDRVDVMQQCDDGWFVGvsRRTQKFGTFPGNYVAP 57
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
786-833 3.55e-06

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 45.08  E-value: 3.55e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK--EGeWWTGTIGS-RTGMFPSNYVQ 833
Cdd:cd11960     4 ALYDYQAADDTEISFDPGDIITDIEQidEG-WWRGTGPDgTYGLFPANYVE 53
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
678-732 3.63e-06

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 45.01  E-value: 3.63e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDII--LVPLEQNaepGWLAGE--INGHTGWFPESYVEK 732
Cdd:cd11779     2 RVKALYPHAAGGETQLSFEEGDVItlLGPEPRD---GWHYGEneRSGRRGWFPIAYTEP 57
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
680-731 3.64e-06

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 44.93  E-value: 3.64e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11929     4 KALCNYRGHNPGDLKFNKGDVIL--LRRQLDENWYLGEINGVSGIFPASSVE 53
SH3_p47phox_1 cd12021
First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called ...
947-1001 3.72e-06

First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the first SH3 domain (or N-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212954 [Multi-domain]  Cd Length: 53  Bit Score: 44.95  E-value: 3.72e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGrrrqiGWFPATYVK 1001
Cdd:cd12021     3 RAIADYEKSSKSEMALKTGDVVEVVEKSENGWWFCQLKAKR-----GWVPASYLE 52
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
952-1000 3.86e-06

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 45.20  E-value: 3.86e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKT-----DSGWWEGELQAKgrrrqIGWFPATYV 1000
Cdd:cd11876     8 YDARGEDELTLRRGQPVEVLSKDaavsgDEGWWTGKIGDK-----VGIFPSNYV 56
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
375-625 3.90e-06

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 50.29  E-value: 3.90e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  375 KARLEAERKQQEELERQLQRQREiEMEKEEQRKRELEAK--------EAARKELEKQRQQEWE-QARIAEMNAQKEREQE 445
Cdd:COG4372    51 REELEQAREELEQLEEELEQARS-ELEQLEEELEELNEQlqaaqaelAQAQEELESLQEEAEElQEELEELQKERQDLEQ 129
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  446 RVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKtvidgmRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERA 525
Cdd:COG4372   130 QRKQLEAQIAELQSEIAEREEELKELEEQLESLQEELAALE------QELQALSEAEAEQALDELLKEANRNAEKEEELA 203
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  526 KWEAKSKASGAALGGENAQQEQLNAAfAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLY 605
Cdd:COG4372   204 EAEKLIESLPRELAEELLEAKDSLEA-KLGLALSALLDALELEEDKEELLEEVILKEIEELELAILVEKDTEEEELEIAA 282
                         250       260
                  ....*....|....*....|
gi 442628730  606 KEYDVQRTSVLELKYNRKNE 625
Cdd:COG4372   283 LELEALEEAALELKLLALLL 302
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
1032-1080 4.02e-06

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 45.18  E-value: 4.02e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLG-RD---EPEWWRGELNGLSGLFPSNYVG 1080
Cdd:cd12141     4 AVYTFKARSPNELSVSANQRVRILEfSDltgNKEWWLAEANGQKGYVPSNYIR 56
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
945-1000 4.07e-06

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 45.08  E-value: 4.07e-06
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKK----TDSGWWEGELQAKgrrrqIGWFPATYV 1000
Cdd:cd11762     1 LVRALYDYEAQSDEELSFPEGAIIRILRKddngVDDGWWEGEFNGR-----VGVFPSLVV 55
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
946-1002 4.16e-06

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 45.02  E-value: 4.16e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVKV 1002
Cdd:cd11874     2 CKVLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGKLNGK-----VGVFPSNFVKE 53
rad50 TIGR00606
rad50; All proteins in this family for which functions are known are involvedin recombination, ...
381-609 4.22e-06

rad50; All proteins in this family for which functions are known are involvedin recombination, recombinational repair, and/or non-homologous end joining.They are components of an exonuclease complex with MRE11 homologs. This family is distantly related to the SbcC family of bacterial proteins.This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University).


Pssm-ID: 129694 [Multi-domain]  Cd Length: 1311  Bit Score: 51.20  E-value: 4.22e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   381 ERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKEL-EKQRQQEWEQARIAEMNAQKEREQERVLKQK--AHNTQL 457
Cdd:TIGR00606  710 KLKSTESELKKKEKRRDEMLGLAPGRQSIIDLKEKEIPELrNKLQKVNRDIQRLKNDIEEQETLLGTIMPEEesAKVCLT 789
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   458 NVE-LSTLNEKIKELSQRI---------CDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKW 527
Cdd:TIGR00606  790 DVTiMERFQMELKDVERKIaqqaaklqgSDLDRTVQQVNQEKQEKQHELDTVVSKIELNRKLIQDQQEQIQHLKSKTNEL 869
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   528 EAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKE 607
Cdd:TIGR00606  870 KSEKLQIGTNLQRRQQFEEQLVELSTEVQSLIREIKDAKEQDSPLETFLEKDQQEKEELISSKETSNKKAQDKVNDIKEK 949

                   ..
gi 442628730   608 YD 609
Cdd:TIGR00606  950 VK 951
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
786-834 4.42e-06

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 44.93  E-value: 4.42e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11976     4 ARYDFCARDRSELSLKEGDIIKILNKKGQqgWWRGEIYGRVGWFPANYVEE 54
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
1028-1079 4.49e-06

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 45.02  E-value: 4.49e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1028 DKVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12076     1 EKYTVIYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIRYQGKEGWAPASYL 52
SH3_RIM-BP cd11851
Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding ...
1029-1081 4.53e-06

Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212785  Cd Length: 62  Bit Score: 45.00  E-value: 4.53e-06
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYK----AQNDD---ELSFDKDDIISVLG-RDEPEWWRGELNGL-SGLFPSNYVGP 1081
Cdd:cd11851     1 LMVALYDYNpetmSPNDDpeeELSFHAGDVVRVYGpMDEDGFYYGELEGGrKGLVPSNFVQE 62
SH3_UBASH3B cd11936
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein B; UBASH3B, ...
680-732 4.56e-06

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein B; UBASH3B, also called Suppressor of T cell receptor Signaling (STS)-1 or T cell Ubiquitin LigAnd (TULA)-2 is an active phosphatase that is expressed ubiquitously. The phosphatase activity of UBASH3B is essential for its roles in the suppression of TCR signaling and the regulation of EGFR. It also interacts with Syk and functions as a negative regulator of platelet glycoprotein VI signaling. TULA proteins contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212869  Cd Length: 62  Bit Score: 45.03  E-value: 4.56e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILV-PLEQNA-EPGWLAGE--INGHTGWFPESYVEK 732
Cdd:cd11936     5 QVIYPYTPQNDDELELVPGDYIFMsPMEQTStSEGWIYGTslTTGCSGLLPENYITK 61
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
785-832 4.61e-06

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 44.71  E-value: 4.61e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTIGSRTGMFPSNYV 832
Cdd:cd11816     3 VARFDFEGEQEDELSFSEGDVITLKEYVGeEWAKGELNGKIGIFPLNFV 51
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
370-550 4.66e-06

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 50.72  E-value: 4.66e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   370 ADKREKARLEAERK----------QQEELERqlQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWE--QARIAEMN 437
Cdd:pfam15709  340 AERAEMRRLEVERKrreqeeqrrlQQEQLER--AEKMREELELEQQRRFEEIRLRKQRLEEERQRQEEEErkQRLQLQAA 417
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   438 AQKEREQERVLKQKAHNTQLNVELSTLN------EKIKELSQRICDTRagvtnvktvidgmrtQRDTSMSEMSQLKARIK 511
Cdd:pfam15709  418 QERARQQQEEFRRKLQELQRKKQQEEAEraeaekQRQKELEMQLAEEQ---------------KRLMEMAEEERLEYQRQ 482
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....
gi 442628730   512 EQNAkllqltQERAKWEAKSK----ASGAALGGENA-QQEQLNA 550
Cdd:pfam15709  483 KQEA------EEKARLEAEERrqkeEEAARLALEEAmKQAQEQA 520
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
338-573 4.70e-06

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 51.12  E-value: 4.70e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   338 VKGQAELDRRRKIMEDQQRKEREERErkereeadKREKARLEAERKQQEELERQLqRQREIEMEKEEQRKRELEA----- 412
Cdd:TIGR00618  619 RKLQPEQDLQDVRLHLQQCSQELALK--------LTALHALQLTLTQERVREHAL-SIRVLPKELLASRQLALQKmqsek 689
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   413 -----------------KEAARKELEKQRQ-QEWEQA---RIAEMNAQ---------------KEREQERVLKQKAHNTQ 456
Cdd:TIGR00618  690 eqltywkemlaqcqtllRELETHIEEYDREfNEIENAsssLGSDLAARedalnqslkelmhqaRTVLKARTEAHFNNNEE 769
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   457 LNVELSTLNEK---IKELSQRICDTRAGVTNVKTVIDGMRTQRD-----------TSMSEMSQLKARIKEQNAKLLQLTQ 522
Cdd:TIGR00618  770 VTAALQTGAELshlAAEIQFFNRLREEDTHLLKTLEAEIGQEIPsdedilnlqceTLVQEEEQFLSRLEEKSATLGEITH 849
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|.
gi 442628730   523 ERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEI 573
Cdd:TIGR00618  850 QLLKYEECSKQLAQLTQEQAKIIQLSDKLNGINQIKIQFDGDALIKFLHEI 900
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
785-833 4.81e-06

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 44.95  E-value: 4.81e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIG--SRTGMFPSNYVQ 833
Cdd:cd11924     4 VAQYTFKGDLEVELSFRKGEHICLIRKvNENWYEGRITgtGRQGIFPASYVQ 55
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
948-1001 4.96e-06

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 44.64  E-value: 4.96e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGrrrqiGWFPATYVK 1001
Cdd:cd12076     5 VIYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIRYQGKE-----GWAPASYLK 53
SH3_iASPP cd11952
Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called ...
781-831 5.03e-06

Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called RelA-associated inhibitor (RAI), is an oncoprotein that inhibits the apoptotic transactivation potential of p53. It is upregulated in human breast cancers expressing wild-type p53, in acute leukemias regardless of the p53 mutation status, as well as in ovarian cancer where it is associated with poor patient outcome and chemoresistance. iASPP is also a binding partner and negative regulator of p65RelA, which promotes cell proliferation and inhibits apoptosis; p65RelA has the opposite effect on cell growth compared to the p53 family. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of iASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212885 [Multi-domain]  Cd Length: 56  Bit Score: 44.92  E-value: 5.03e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  781 VEYYIAAYPYESAEEgdLSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNY 831
Cdd:cd11952     2 VVYALWDYSAEFPDE--LSFKEGDMVTVLRKDGEgtdWWWASLCGREGYVPRNY 53
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
681-731 5.15e-06

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 44.70  E-value: 5.15e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIIlVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11960     4 ALYDYQAADDTEISFDPGDII-TDIEQIDEGWWRGTGPDGTYGLFPANYVE 53
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
680-732 5.19e-06

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 44.64  E-value: 5.19e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEI--NGHT---GWFPESYVEK 732
Cdd:cd11839     3 QVIAPFTATAENQLSLAVGQLVLV--RKKSPSGWWEGELqaRGKKrqiGWFPANYVKL 58
SH3_p47phox_2 cd12022
Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also ...
784-834 5.37e-06

Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212955 [Multi-domain]  Cd Length: 53  Bit Score: 44.44  E-value: 5.37e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK--EGeWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12022     2 YITIKAYTAVEEDELTLLEGEAIEVIHKllDG-WWVVRKGEVTGYFPSMYLQK 53
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
321-608 5.57e-06

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 50.74  E-value: 5.57e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   321 AGLPGQTSFEDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEReeaDKREKARLEAERKQQEELerqlqrQREIEM 400
Cdd:TIGR00618  532 RGEQTYAQLETSEEDVYHQLTSERKQRASLKEQMQEIQQSFSILTQC---DNRSKEDIPNLQNITVRL------QDLTEK 602
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   401 EKEEQRKRELEAKeaaRKELEKQRQQEWEQARIAEMNAQKEREQErvlkqKAHNTQLNVELSTLNEKIKELSQRICDTRA 480
Cdd:TIGR00618  603 LSEAEDMLACEQH---ALLRKLQPEQDLQDVRLHLQQCSQELALK-----LTALHALQLTLTQERVREHALSIRVLPKEL 674
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   481 G--VTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENA------------QQE 546
Cdd:TIGR00618  675 LasRQLALQKMQSEKEQLTYWKEMLAQCQTLLRELETHIEEYDREFNEIENASSSLGSDLAAREDalnqslkelmhqART 754
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730   547 QLNA-AFAHKQ-----LIINQIKDKVENISKEIESKKEDINTNDVQMSELKAE--------LSALITKCEDLYKEY 608
Cdd:TIGR00618  755 VLKArTEAHFNnneevTAALQTGAELSHLAAEIQFFNRLREEDTHLLKTLEAEigqeipsdEDILNLQCETLVQEE 830
SH3_SH3RF1_3 cd11926
Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ...
1031-1081 5.58e-06

Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212859 [Multi-domain]  Cd Length: 55  Bit Score: 44.57  E-value: 5.58e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNYVGP 1081
Cdd:cd11926     3 VAIYPYTPRKEDELELRKGEMFLVFERCQDGWFKGTSmhTSKIGVFPGNYVAP 55
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
952-1001 5.59e-06

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 44.55  E-value: 5.59e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  952 YEATSTEQLSLTRGQLIMI-RKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd11976     8 FCARDRSELSLKEGDIIKIlNKKGQQGWWRGEIYGR-----VGWFPANYVE 53
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
952-1000 5.66e-06

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 44.61  E-value: 5.66e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYV 1000
Cdd:cd11902     9 YVAEREDELSLVKGSRVTVMEKCSDGWWRGSYNG-----QIGWFPSNYV 52
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
946-1002 5.84e-06

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 44.40  E-value: 5.84e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGElQAKGRRrqiGWFPATYVKV 1002
Cdd:cd11962     2 AVVLYDYEKDEDNEIELVEGEIVTNIEMVDEDWWMGT-NSKGES---GLFPSNYVEL 54
SH3_srGAP1-3 cd11955
Src homology 3 domain of Slit-Robo GTPase Activating Proteins 1, 2, and 3; srGAP1, also called ...
1031-1079 5.90e-06

Src homology 3 domain of Slit-Robo GTPase Activating Proteins 1, 2, and 3; srGAP1, also called Rho GTPase-Activating Protein 13 (ARHGAP13), is a Cdc42- and RhoA-specific GAP and is expressed later in the development of central nervous system tissues. srGAP2 is expressed in zones of neuronal differentiation. It plays a role in the regeneration of neurons and axons. srGAP3, also called MEGAP (MEntal disorder associated GTPase-Activating Protein), is a Rho GAP with activity towards Rac1 and Cdc42. It impacts cell migration by regulating actin and microtubule cytoskeletal dynamics. The association between srGAP3 haploinsufficiency and mental retardation is under debate. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212888 [Multi-domain]  Cd Length: 53  Bit Score: 44.55  E-value: 5.90e-06
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11955     3 IAKFDYVGRSARELSFKKGASLLLYHRASDDWWEGRHNGIDGLVPHQYI 51
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
784-833 6.18e-06

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 44.60  E-value: 6.18e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTI--GSRTGMFPSNYVQ 833
Cdd:cd11934     5 YRAVYDYNAADEDEVSFQDGDTIVNVQQIDDgWMYGTVerTGDTGMLPANYVE 57
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
680-729 6.20e-06

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 44.58  E-value: 6.20e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGHT-----GWFPESY 729
Cdd:cd11883     3 VALYDFTPKSKNQLSFKAGDIIYV-LNKD-PSGWWDGVIISSSgkvkrGWFPSNY 55
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
678-732 6.21e-06

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 44.64  E-value: 6.21e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYVEK 732
Cdd:cd12076     2 KYTVIYPYTARDQDEINLEKGAVVEV-IQKNLE-GWWKIRYQGKEGWAPASYLKK 54
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
789-834 6.26e-06

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 44.64  E-value: 6.26e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  789 PYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSR-----TGMFPSNYVQK 834
Cdd:cd11839     7 PFTATAENQLSLAVGQLVLVRKKSPSgWWEGELQARgkkrqIGWFPANYVKL 58
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
783-834 6.34e-06

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 44.23  E-value: 6.34e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTG--TIGSRtGMFPSNYVQK 834
Cdd:cd11770     1 LYEALSDFQAEQEGDLSFKKGEVLRIIsKRADGWWLAenSKGNR-GLVPKTYLKV 54
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
785-833 6.58e-06

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 44.63  E-value: 6.58e-06
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                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11971     3 VAIYDYSKDKDDELSFMEGAIIYVIKKNDDgWYEGVCNGVTGLFPGNYVE 52
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
678-733 6.58e-06

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 44.63  E-value: 6.58e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11971     1 KVVAIYDYSKDKDDELSFMEGAIIYV-IKKN-DDGWYEGVCNGVTGLFPGNYVESI 54
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
949-997 6.74e-06

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 44.23  E-value: 6.74e-06
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gi 442628730  949 IAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGelQAKGRrrqIGWFPA 997
Cdd:cd11982     6 VKPYQSQAEGEISLSKGEKIKVLSVGEGGFWEG--QVKGR---VGWFPS 49
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
680-731 7.03e-06

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 44.44  E-value: 7.03e-06
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gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvpleqNAE---PGWLAGEINGHTGWFPESYVE 731
Cdd:cd11961     3 KALYDYDAAEDNELSFFENDKII-----NIEfvdDDWWLGECHGSRGLFPSNYVE 52
SH3_Src cd12008
Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or ...
1031-1081 7.31e-06

Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or non-receptor) PTK and is the vertebrate homolog of the oncogenic protein (v-Src) from Rous sarcoma virus. Together with other Src subfamily proteins, it is involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. Src also play a role in regulating cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Elevated levels of Src kinase activity have been reported in a variety of human cancers. Several inhibitors of Src have been developed as anti-cancer drugs. Src is also implicated in acute inflammatory responses and osteoclast function. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212941 [Multi-domain]  Cd Length: 56  Bit Score: 44.33  E-value: 7.31e-06
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gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE--LNGLSGLFPSNYVGP 1081
Cdd:cd12008     3 VALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHslTTGQTGYIPSNYVAP 55
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
331-475 7.42e-06

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 48.38  E-value: 7.42e-06
                          10        20        30        40        50        60        70        80
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gi 442628730  331 DKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEAD-KREKARLEAE----RKQQEELERQLQR----------Q 395
Cdd:COG1579    16 DSELDRLEHRLKELPAELAELEDELAALEARLEAAKTELEDlEKEIKRLELEieevEARIKKYEEQLGNvrnnkeyealQ 95
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  396 REIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAhntQLNVELSTLNEKIKELSQRI 475
Cdd:COG1579    96 KEIESLKRRISDLEDEILELMERIEELEEELAELEAELAELEAELEEKKAELDEELA---ELEAELEELEAEREELAAKI 172
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
681-731 7.48e-06

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 44.34  E-value: 7.48e-06
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gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11842     4 ALYDFAGEQPGDLAFQKGDIITILKKSDSQNDWWTGRIGGREGIFPANYVE 54
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
784-832 7.60e-06

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 44.17  E-value: 7.60e-06
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gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11984     3 FIAVKAYSPQGEGEIQLNRGERVKVLSiGEGGFWEGTVKGRTGWFPADCV 52
SH3_PACSIN3 cd11997
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); ...
786-833 7.66e-06

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); PACSIN 3 or Syndapin III (Synaptic dynamin-associated protein III) is expressed ubiquitously and regulates glucose uptake in adipocytes through its role in GLUT1 trafficking. It also modulates the subcellular localization and stimulus-specific function of the cation channel TRPV4. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212930 [Multi-domain]  Cd Length: 56  Bit Score: 44.18  E-value: 7.66e-06
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                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGS-RTGMFPSNYVQ 833
Cdd:cd11997     6 ALYDYTGQEADELSFKAGEELLKIGEEDEqgWCKGRLLSgRIGLYPANYVE 56
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
680-729 7.66e-06

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 44.23  E-value: 7.66e-06
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                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEING---HTGWFPESY 729
Cdd:cd11821     3 RALYDCQADNDDELTFSEGEIIVVTGEEDDE--WWEGHIEGdpsRRGVFPVSF 53
DUF4659 pfam15558
Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins ...
374-451 8.03e-06

Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins in this family are typically between 427 and 674 amino acids in length. There are two completely conserved residues (D and I) that may be functionally important.


Pssm-ID: 464768 [Multi-domain]  Cd Length: 374  Bit Score: 49.26  E-value: 8.03e-06
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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERQL-----QRQREIEMEK-------EEQRKRELEAKEAARKE---------LEKQRQQEWEQAR 432
Cdd:pfam15558   36 ELRRRDQKRQETLERERRLllqqsQEQWQAEKEQrkarlgrEERRRADRREKQVIEKEsrwreqaedQENQRQEKLERAR 115
                           90
                   ....*....|....*....
gi 442628730   433 IAEMnaQKEREQERVLKQK 451
Cdd:pfam15558  116 QEAE--QRKQCQEQRLKEK 132
SH3_CSK cd11769
Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr ...
785-834 8.22e-06

Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr kinase containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, CSK is translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. CSK catalyzes the tyr phosphorylation of the regulatory C-terminal tail of Src kinases, resulting in their inactivation. It is expressed in a wide variety of tissues and plays a role, as a regulator of Src, in cell proliferation, survival, and differentiation, and consequently, in cancer development and progression. In addition, CSK also shows Src-independent functions. It is a critical component in G-protein signaling, and plays a role in cytoskeletal reorganization and cell migration. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212703 [Multi-domain]  Cd Length: 57  Bit Score: 44.22  E-value: 8.22e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIK--KEGEWWTG-TIGSRTGMFPSNYVQK 834
Cdd:cd11769     5 IAKYNFNGASEEDLPFKKGDILTIVAvtKDPNWYKAkNKDGREGMIPANYVQK 57
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
678-732 8.58e-06

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 43.78  E-value: 8.58e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11856     1 SYVAIADYEAQGDDEISLQEGEVVEV-LEKN-DSGWWYVRKGDKEGWVPASYLEP 53
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
783-833 8.64e-06

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 44.02  E-value: 8.64e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12046     1 QVVALFSYEASQPEDLEFQKGDVILVLSKvNEDWLEGQCKGKIGIFPSAFVE 52
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
785-831 8.66e-06

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 44.19  E-value: 8.66e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRT-----GMFPSNY 831
Cdd:cd11883     3 VALYDFTPKSKNQLSFKAGDIIYVLNKdPSGWWDGVIISSSgkvkrGWFPSNY 55
SH3_Tks5_1 cd12074
First Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
948-1000 8.75e-06

First Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the first SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213007 [Multi-domain]  Cd Length: 53  Bit Score: 43.93  E-value: 8.75e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWW---EGELQakgrrrqiGWFPATYV 1000
Cdd:cd12074     4 VVSNYEKQENSEISLQAGEVVDVIEKNESGWWfvsTAEEQ--------GWVPATYL 51
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
786-833 8.84e-06

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 43.93  E-value: 8.84e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-----WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11762     4 ALYDYEAQSDEELSFPEGAIIRILRKDDNgvddgWWEGEFNGRVGVFPSLVVE 56
SH3_FCHSD_1 cd11761
First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1029-1079 9.23e-06

First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212695 [Multi-domain]  Cd Length: 57  Bit Score: 43.89  E-value: 9.23e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN--GLSGLFPSNYV 1079
Cdd:cd11761     3 TCKVLYSYEAQRPDELTITEGEELEVIEDGDGDGWVKARNksGEVGYVPENYL 55
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
678-732 9.32e-06

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 43.99  E-value: 9.32e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11820     2 KVRALYDFEAAEDNELTFKAGEIITVL--DDSDPNWWKGSNHRGEGLFPANFVTA 54
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
678-734 9.44e-06

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 44.06  E-value: 9.44e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILvPLEQNAEPGWLAGEINGHTGWFPESYVEKLE 734
Cdd:cd12053     1 EYIVEYDYDAVHEDELTIRVGEIIR-NVKKLEEEGWLEGELNGRRGMFPDNFVKEIK 56
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
374-454 9.49e-06

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 49.15  E-value: 9.49e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKE--------LEKQRQQEWEQARIAEMNAQKEREQE 445
Cdd:pfam13868  108 ERIQEEDQAEAEEKLEKQRQLREEIDEFNEEQAEWKELEKEEEREEderileylKEKAEREEEREAEREEIEEEKEREIA 187

                   ....*....
gi 442628730   446 RVLKQKAHN 454
Cdd:pfam13868  188 RLRAQQEKA 196
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
952-1003 9.80e-06

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 43.80  E-value: 9.80e-06
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVKVL 1003
Cdd:cd11919     9 FKAQTLKELPLQKGDIVYIYKQIDQNWYEGEHHGR-----VGIFPRSYIELL 55
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
785-834 1.00e-05

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 43.77  E-value: 1.00e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11830     3 KARYDFCARDMRELSLKEGDVVKIYNKKGQqgWWRGEINGRIGWFPSTYVEE 54
DDRGK pfam09756
DDRGK domain; This is a family of proteins of approximately 300 residues, found in plants and ...
379-452 1.02e-05

DDRGK domain; This is a family of proteins of approximately 300 residues, found in plants and vertebrates. They contain a highly conserved DDRGK motif.


Pssm-ID: 370664 [Multi-domain]  Cd Length: 188  Bit Score: 47.34  E-value: 1.02e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730   379 EAERKQQEELERQlQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEwEQARIAEMNAQKE----REQERVLKQKA 452
Cdd:pfam09756    5 AKKRAKLELKEAK-RQQREAEEEEREEREKLEEKREEEYKEREEREEEA-EKEKEEEERKQEEeqerKEQEEYEKLKS 80
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
1029-1081 1.09e-05

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 43.85  E-value: 1.09e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGrDEPE--WWRGEL--NGLSGLFPSNYVGP 1081
Cdd:cd11779     2 RVKALYPHAAGGETQLSFEEGDVITLLG-PEPRdgWHYGENerSGRRGWFPIAYTEP 57
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
370-625 1.16e-05

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 48.37  E-value: 1.16e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  370 ADKREKARLEAERKQQEELERQLQRQREiemEKEEQrKRELEAKeaaRKELEKQRQQEWEQARiaEMNAQKEREQERVLK 449
Cdd:COG1340     5 ELSSSLEELEEKIEELREEIEELKEKRD---ELNEE-LKELAEK---RDELNAQVKELREEAQ--ELREKRDELNEKVKE 75
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  450 QKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTV---IDGMRTQRDTS----------MSEMSQLKARIK----- 511
Cdd:COG1340    76 LKEERDELNEKLNELREELDELRKELAELNKAGGSIDKLrkeIERLEWRQQTEvlspeeekelVEKIKELEKELEkakka 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  512 -EQNAKLLQLTQERAKWEAKSKASGAALG--GENAQQeqlnaafAHKQLIinQIKDKVENISKEIESKKEDINTNDVQMS 588
Cdd:COG1340   156 lEKNEKLKELRAELKELRKEAEEIHKKIKelAEEAQE-------LHEEMI--ELYKEADELRKEADELHKEIVEAQEKAD 226
                         250       260       270
                  ....*....|....*....|....*....|....*..
gi 442628730  589 ELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKNE 625
Cdd:COG1340   227 ELHEEIIELQKELRELRKELKKLRKKQRALKREKEKE 263
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
679-732 1.19e-05

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 43.64  E-value: 1.19e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVEK 732
Cdd:cd11833     2 YVALYKFKPQENEDLEMRPGDKITLLDDSNED--WWKGKIEDRVGFFPANFVQR 53
DUF4200 pfam13863
Domain of unknown function (DUF4200); This family is found in eukaryotes. It is a coiled-coil ...
378-475 1.22e-05

Domain of unknown function (DUF4200); This family is found in eukaryotes. It is a coiled-coil domain of unknwon function.


Pssm-ID: 464003 [Multi-domain]  Cd Length: 119  Bit Score: 45.64  E-value: 1.22e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   378 LEAERKQQEELERQLQRQR-EIEMEKEEQRKREleakeaarKELEKQRQQEWEQAR-----IAEMNAQKEREQERVLKQK 451
Cdd:pfam13863    1 LLEKKREMFLVQLALDAKReEIERLEELLKQRE--------EELEKKEQELKEDLIkfdkfLKENDAKRRRALKKAEEET 72
                           90       100
                   ....*....|....*....|....
gi 442628730   452 AHNTQLNVELSTLNEKIKELSQRI 475
Cdd:pfam13863   73 KLKKEKEKEIKKLTAQIEELKSEI 96
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
319-609 1.23e-05

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 49.65  E-value: 1.23e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  319 PTAGLPGQTSFEDKRKEnyvkgQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELerqLQRQREI 398
Cdd:PRK02224  460 PVEGSPHVETIEEDRER-----VEELEAELEDLEEEVEEVEERLERAEDLVEAEDRIERLEERREDLEEL---IAERRET 531
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  399 EMEKEEQrkreLEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKahntqlnveLSTLNEKIKELsQRICDT 478
Cdd:PRK02224  532 IEEKRER----AEELRERAAELEAEAEEKREAAAEAEEEAEEAREEVAELNSK---------LAELKERIESL-ERIRTL 597
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  479 RAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNakllqltqERaKWEAKSKASGAALggENAQQEQLNAAFAHKQLI 558
Cdd:PRK02224  598 LAAIADAEDEIERLREKREALAELNDERRERLAEKR--------ER-KRELEAEFDEARI--EEAREDKERAEEYLEQVE 666
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  559 --INQIKDKVENISKEIESKKEDINtndvQMSELKAELSALITKCEDLYKEYD 609
Cdd:PRK02224  667 ekLDELREERDDLQAEIGAVENELE----ELEELRERREALENRVEALEALYD 715
SH3_SKAP1-like cd11866
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This ...
1032-1079 1.26e-05

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This subfamily is composed of SKAP1, SKAP2, and similar proteins. SKAP1 and SKAP2 are immune cell-specific adaptor proteins that play roles in T- and B-cell adhesion, respectively, and are thus important in the migration of T- and B-cells to sites of inflammation and for movement during T-cell conjugation with antigen-presenting cells. Both SKAP1 and SKAP2 bind to ADAP (adhesion and degranulation-promoting adaptor protein), among many other binding partners. They contain a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212800  Cd Length: 53  Bit Score: 43.57  E-value: 1.26e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGR--DEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11866     4 GLWDCSGNEPDELSFKRGDLIYIISKeyDSFGWWVGELNGKVGLVPKDYL 53
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
681-731 1.31e-05

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 43.65  E-value: 1.31e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11948     4 ALYSFQATESDELPFQKGDILKI-LNMEDDQNWYKAELQGREGYIPKNYIK 53
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
947-1001 1.33e-05

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 43.64  E-value: 1.33e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIA--PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd12046     1 QVVAlfSYEASQPEDLEFQKGDVILVLSKVNEDWLEGQCKGK-----IGIFPSAFVE 52
SH3_Lck cd12005
Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of ...
1030-1079 1.37e-05

Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lck is expressed in T-cells and natural killer cells. It plays a critical role in T-cell maturation, activation, and T-cell receptor (TCR) signaling. Lck phosphorylates ITAM (immunoreceptor tyr activation motif) sequences on several subunits of TCRs, leading to the activation of different second messenger cascades. Phosphorylated ITAMs serve as binding sites for other signaling factor such as Syk and ZAP-70, leading to their activation and propagation of downstream events. In addition, Lck regulates drug-induced apoptosis by interfering with the mitochondrial death pathway. The apototic role of Lck is independent of its primary function in T-cell signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212938 [Multi-domain]  Cd Length: 54  Bit Score: 43.27  E-value: 1.37e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDePEWWRGE--LNGLSGLFPSNYV 1079
Cdd:cd12005     2 VVALYSYEPSHDGDLGFEKGEKLRILEQS-GEWWKAQslTTGQEGFIPFNFV 52
SH3_SH3RF1_3 cd11926
Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ...
784-832 1.39e-05

Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212859 [Multi-domain]  Cd Length: 55  Bit Score: 43.42  E-value: 1.39e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTI--GSRTGMFPSNYV 832
Cdd:cd11926     2 YVAIYPYTPRKEDELELRKGEMFLVFERcQDGWFKGTSmhTSKIGVFPGNYV 53
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
947-1001 1.40e-05

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 43.63  E-value: 1.40e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11940     3 QCIRSYKAQENDELTLEKADIIMVRQQSSDGWLEGVRLSDGER---GWFPQSHVE 54
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
788-834 1.43e-05

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 43.42  E-value: 1.43e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  788 YPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12054     7 FEYVPQNEDELELKVGDIIDINEEvEEGWWSGTLNGKSGLFPSNFVKE 54
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
952-1003 1.44e-05

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 43.37  E-value: 1.44e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRrrqIGWFPATYVKVL 1003
Cdd:cd11921     9 FQAQSPKELTLQKGDIVYIHKEVDKNWLEGEHH--GR---VGIFPANYVEVL 55
SH3_Tec_like cd11768
Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed ...
785-834 1.46e-05

Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed in hepatocellular carcinoma) subfamily is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar proteins. They are cytoplasmic (or nonreceptor) tyr kinases containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation. In addition, some members contain the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. Tec kinases are expressed mainly by haematopoietic cells, although Tec and Bmx are also found in endothelial cells. B-cells express Btk and Tec, while T-cells express Itk, Txk, and Tec. Collectively, Tec kinases are expressed in a variety of myeloid cells such as mast cells, platelets, macrophages, and dendritic cells. Each Tec kinase shows a distinct cell-type pattern of expression. The function of Tec kinases in lymphoid cells have been studied extensively. They play important roles in the development, differentiation, maturation, regulation, survival, and function of B-cells and T-cells. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212702 [Multi-domain]  Cd Length: 54  Bit Score: 43.42  E-value: 1.46e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGS-RTGMFPSNYVQK 834
Cdd:cd11768     3 VALYDFQPIEPGDLPLEKGEEYVVLDDSNEhWWRARDKNgNEGYIPSNYVTE 54
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
952-1000 1.50e-05

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 43.27  E-value: 1.50e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqAKGRRrqiGWFPATYV 1000
Cdd:cd11812     8 YTANRSDELTIHRGDIIRVLYKDNDNWWFGSL-VNGQQ---GYFPANYV 52
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
786-831 1.51e-05

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 43.46  E-value: 1.51e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTI---GSRTGMFPSNY 831
Cdd:cd11821     4 ALYDCQADNDDELTFSEGEIIVVTGEEDdEWWEGHIegdPSRRGVFPVSF 53
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
788-833 1.51e-05

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 43.25  E-value: 1.51e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  788 YPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIG-SRTGMFPSNYVQ 833
Cdd:cd11962     6 YDYEKDEDNEIELVEGEIVTNIEMVDEdWWMGTNSkGESGLFPSNYVE 53
tolA_full TIGR02794
TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the ...
341-452 1.54e-05

TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis]


Pssm-ID: 274303 [Multi-domain]  Cd Length: 346  Bit Score: 48.30  E-value: 1.54e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEaERKQQEELERQLQRQREiemEKEEQRKRELEAKEAARKEL 420
Cdd:TIGR02794   57 QQKKPAAKKEQERQKKLEQQAEEAEKQRAAEQARQKELE-QRAAAEKAAKQAEQAAK---QAEEKQKQAEEAKAKQAAEA 132
                           90       100       110
                   ....*....|....*....|....*....|..
gi 442628730   421 EKQRQQEWEQARIAEmnAQKEREQERVLKQKA 452
Cdd:TIGR02794  133 KAKAEAEAERKAKEE--AAKQAEEEAKAKAAA 162
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
1031-1079 1.55e-05

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 43.46  E-value: 1.55e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11982     4 MAVKPYQSQAEGEISLSKGEKIKVLSVGEGGFWEGQVKGRVGWFPSDCV 52
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
786-833 1.57e-05

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 43.42  E-value: 1.57e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  786 AAYPYESAE-EGDLSFSAGEMVMVIKK------EGEWWTG-TIGSRTGMFPSNYVQ 833
Cdd:cd11771     4 ALYDFTPENpEMELSLKKGDIVAVLSKtdplgrDSEWWKGrTRDGRIGWFPSNYVE 59
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
680-731 1.59e-05

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 43.37  E-value: 1.59e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11928     4 KALYSYEGKEPGDLKFNKGDIII--LRRKVDENWYHGELNGCHGFLPASYIQ 53
CCDC34 pfam13904
Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several ...
370-452 1.60e-05

Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several conserved tryptophan residues. The function is not known.


Pssm-ID: 464032 [Multi-domain]  Cd Length: 221  Bit Score: 47.39  E-value: 1.60e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   370 ADKREKARLEAERKQQEELERQLQRQREIEMEKEE--QRKRELEAKEA-------------------ARKELE---KQRQ 425
Cdd:pfam13904   65 QRQRQKELQAQKEEREKEEQEAELRKRLAKEKYQEwlQRKARQQTKKReeshkqkaaesaskslakpERKVSQeeaKEVL 144
                           90       100
                   ....*....|....*....|....*..
gi 442628730   426 QEWEQARIAEMNAQKEREQERVLKQKA 452
Cdd:pfam13904  145 QEWERKKLEQQQRKREEEQREQLKKEE 171
SH3_SKAP1 cd12044
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 ...
1032-1079 1.61e-05

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 (Src kinase-associated protein of 55kDa), is an immune cell-specific adaptor protein that plays an important role in T-cell adhesion, migration, and integrin clustering. It is expressed exclusively in T-lymphocytes, mast cells, and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), Fyn, Riam, RapL, and RasGRP. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212977  Cd Length: 53  Bit Score: 43.31  E-value: 1.61e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPE--WWRGELNGLSGLFPSNYV 1079
Cdd:cd12044     4 GLWDCFGDNPDELSFQRGDLIYILSKEYNMygWWVGELNGIVGIVPKDYL 53
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
797-833 1.64e-05

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 43.32  E-value: 1.64e-05
                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 442628730  797 DLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11815    15 DLSLNSGEIVYLLEKiDTEWYRGKCKNTTGIFPANHVK 52
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
1031-1079 1.65e-05

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 43.40  E-value: 1.65e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11985     3 VALYKFLPQENNDLPLQPGDRVMVVDDSNEDWWKGKSGDRVGFFPANFV 51
SH3_Nck_1 cd11765
First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1030-1079 1.66e-05

First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The first SH3 domain of Nck proteins preferentially binds the PxxDY sequence, which is present in the CD3e cytoplasmic tail. This binding inhibits phosphorylation by Src kinases, resulting in the downregulation of TCR surface expression. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212699 [Multi-domain]  Cd Length: 51  Bit Score: 43.18  E-value: 1.66e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGrDEPEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11765     2 VVAKYDYTAQGDQELSIKKNEKLTLLD-DSKHWWKVQnSSNQTGYVPSNYV 51
SH3_MYO15B cd12068
Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its ...
1030-1081 1.69e-05

Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its similarity with myosin XVa. It is a transcribed and unprocessed pseudogene whose predicted amino acid sequence contains mutated or deleted amino acid residues that are normally conserved and important for myosin function. The related myosin XVa is important for normal growth of mechanosensory stereocilia of inner ear hair cells. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 213001  Cd Length: 55  Bit Score: 43.33  E-value: 1.69e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRD--EPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12068     2 VVALRSYITDDKSLLSFHRGDLIKLLPMAglEPGWQFGSTGGRSGLFPADIVQP 55
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
678-729 1.69e-05

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 43.24  E-value: 1.69e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESY 729
Cdd:cd11818     1 KARALYDFTGENEDELSFKAGDIITELESIDEE--WMSGELRGKSGIFPKNF 50
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
346-450 1.74e-05

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 45.80  E-value: 1.74e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   346 RRRKIMEDQQRKEREERERKEREEADKRE-KARLEAERKQQEELERQLQRQREIEMEkEEQRKRELEAKEAARKELEK-- 422
Cdd:pfam05672   19 KRRQAREQREREEQERLEKEEEERLRKEElRRRAEEERARREEEARRLEEERRREEE-ERQRKAEEEAEEREQREQEEqe 97
                           90       100       110
                   ....*....|....*....|....*....|
gi 442628730   423 --QRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:pfam05672   98 rlQKQKEEAEAKAREEAERQRQEREKIMQQ 127
GumC COG3206
Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];
403-631 1.76e-05

Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442439 [Multi-domain]  Cd Length: 687  Bit Score: 48.86  E-value: 1.76e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  403 EEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLkqkahntQLNVELSTLNEKIKELSQRICDTRAGV 482
Cdd:COG3206   163 EQNLELRREEARKALEFLEEQLPELRKELEEAEAALEEFRQKNGLV-------DLSEEAKLLLQQLSELESQLAEARAEL 235
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  483 TNVKTVIDGMRTQRDTSMSEMSQLKA--RIKEQNAKLLQLTQERAKWEAKSkasgaalgGEN-----AQQEQLNAAFAHK 555
Cdd:COG3206   236 AEAEARLAALRAQLGSGPDALPELLQspVIQQLRAQLAELEAELAELSARY--------TPNhpdviALRAQIAALRAQL 307
                         170       180       190       200       210       220       230
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  556 QLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKyNRKNETSVSSA 631
Cdd:COG3206   308 QQEAQRILASLEAELEALQAREASLQAQLAQLEARLAELPELEAELRRLEREVEVARELYESLL-QRLEEARLAEA 382
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
1028-1079 1.79e-05

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 43.21  E-value: 1.79e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1028 DKVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12016     1 EKYITTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQGKEGWAPATYL 52
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
785-832 1.79e-05

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 42.88  E-value: 1.79e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGS-RTGMFPSNYV 832
Cdd:cd11812     3 VALYDYTANRSDELTIHRGDIIRVLYKDNDnWWFGSLVNgQQGYFPANYV 52
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
679-733 1.80e-05

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 43.46  E-value: 1.80e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAGEIN--GHTGWFPESYVEKL 733
Cdd:cd11933     4 FRAMYDYRAADDDEVSFKDGDTIVNV--QTIDEGWMYGTVQrtGKTGMLPANYVEAI 58
SH3_Bem1p_1 cd11878
First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this ...
1030-1078 1.81e-05

First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this subfamily bear similarity to Saccharomyces cerevisiae Bem1p, containing two Src Homology 3 (SH3) domains at the N-terminus, a central PX domain, and a C-terminal PB1 domain. Bem1p is a scaffolding protein that is critical for proper Cdc42p activation during bud formation in yeast. During budding and mating, Bem1p migrates to the plasma membrane where it can serve as an adaptor for Cdc42p and some other proteins. Bem1p also functions as an effector of the G1 cyclin Cln3p and the cyclin-dependent kinase Cdc28p in promoting vacuolar fusion. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212811 [Multi-domain]  Cd Length: 54  Bit Score: 43.05  E-value: 1.81e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1030 VI-ALYPYKAQNDDELSFDKDDIISVLGRDEP-EWWRGE--LNGLSGLFPSNY 1078
Cdd:cd11878     1 VIrALYDYRAQTPGELSFSKGDFFHVIGEEDQgEWYEATnpVTGKRGLVPKSY 53
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
678-730 1.82e-05

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 43.02  E-value: 1.82e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEING---HTGWFPESYV 730
Cdd:cd11966     1 RVKALYNCVADNPDELTFSEGEIIIVDGEEDKE--WWIGHIDGeptRRGAFPVSFV 54
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
324-452 1.90e-05

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 48.26  E-value: 1.90e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  324 PGQTSFEDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEA--ERKQQEELERQ-LQRQREIEM 400
Cdd:PRK09510   57 PGAVVEQYNRQQQQQKSAKRAEEQRKKKEQQQAEELQQKQAAEQERLKQLEKERLAAqeQKKQAEEAAKQaALKQKQAEE 136
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  401 EK-----------EEQRKRELEAkeAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKA 452
Cdd:PRK09510  137 AAakaaaaakakaEAEAKRAAAA--AKKAAAEAKKKAEAEAAKKAAAEAKKKAEAEAAAKAAA 197
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
680-731 1.92e-05

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 43.09  E-value: 1.92e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQnAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11874     3 KVLFSYTPQNEDELELKVGDTIEV-LGE-VEEGWWEGKLNGKVGVFPSNFVK 52
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
372-530 1.94e-05

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 47.23  E-value: 1.94e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLqrqreiemekeeqRKRELEAKEAARKELEKQRQQeweqariaeMNAQKEREQERVLKQK 451
Cdd:COG1579    41 AALEARLEAAKTELEDLEKEI-------------KRLELEIEEVEARIKKYEEQL---------GNVRNNKEYEALQKEI 98
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  452 AHNTQlnvELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDtsmSEMSQLKARIKEQNAKLLQLTQERAKWEAK 530
Cdd:COG1579    99 ESLKR---RISDLEDEILELMERIEELEEELAELEAELAELEAELE---EKKAELDEELAELEAELEELEAEREELAAK 171
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
1032-1079 1.94e-05

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 43.07  E-value: 1.94e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1032 ALYPYKAQNDDELSF-DKDDIISVLGRDEpEWWRGELN--GLSGLFPSNYV 1079
Cdd:cd11933     6 AMYDYRAADDDEVSFkDGDTIVNVQTIDE-GWMYGTVQrtGKTGMLPANYV 55
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
379-609 1.97e-05

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 47.60  E-value: 1.97e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  379 EAERKQQEELERQLQrqrEIEMEKEEQRKRELEAKEAArKELEKQRQQEWEQARiaemnaqKEREQERVLKQKAhnTQLN 458
Cdd:COG1340     4 DELSSSLEELEEKIE---ELREEIEELKEKRDELNEEL-KELAEKRDELNAQVK-------ELREEAQELREKR--DELN 70
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  459 VELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRdtsmSEMSQLKARI-----KEQNAKLL-----QLTQERAKWE 528
Cdd:COG1340    71 EKVKELKEERDELNEKLNELREELDELRKELAELNKAG----GSIDKLRKEIerlewRQQTEVLSpeeekELVEKIKELE 146
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  529 AKSKASGAALGGENAQQEQLNAafahkqliINQIKDKVENISKEIESKKEdintndvQMSELKAELSALITKCEDLYKEY 608
Cdd:COG1340   147 KELEKAKKALEKNEKLKELRAE--------LKELRKEAEEIHKKIKELAE-------EAQELHEEMIELYKEADELRKEA 211

                  .
gi 442628730  609 D 609
Cdd:COG1340   212 D 212
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
952-1000 1.98e-05

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 43.22  E-value: 1.98e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKT-----DSGWWEGELQAKgrrrqIGWFPATYV 1000
Cdd:cd12059     8 YEASAEDELTLRRGDRVEVLSKDsavsgDEGWWTGKINDR-----VGIFPSNYV 56
CagA_N pfam18971
CagA protein; The Helicobacter pylori type IV secretion effector CagA is a major bacterial ...
327-604 2.03e-05

CagA protein; The Helicobacter pylori type IV secretion effector CagA is a major bacterial virulence determinant and critical for gastric carcinogenesis. X-ray crystallographic analysis of the N-terminal CagA fragment (residues 1-876) revealed that the region has a structure comprised of three discrete domains. Domain I constitutes a mobile CagA N terminus, while Domain II tethers CagA to the plasma membrane by interacting with membrane phosphatidylserine. Domain III interacts intramolecularly with the intrinsically disordered C-terminal region, and this interaction potentiates the pathogenic scaffold/hub function of CagA.


Pssm-ID: 408741 [Multi-domain]  Cd Length: 876  Bit Score: 48.62  E-value: 2.03e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   327 TSFEDKRKENYVKGQA-ELDRRRKIMED---QQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEK 402
Cdd:pfam18971  554 TSFVRRNLENKLTAKGlSLQEANKLIKDflsSNKELAGKALNFNKAVAEAKSTGNYDEVKKAQKDLEKSLRKREHLEKEV 633
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   403 EeqrkRELEAKEAARKELEKQRQQEWEQARI-AEMNAQKEREQERVlkqkAHNTQLNVELSTLNEKIKELSQRICDTRAG 481
Cdd:pfam18971  634 E----KKLESKSGNKNKMEAKAQANSQKDEIfALINKEANRDARAI----AYTQNLKGIKRELSDKLEKISKDLKDFSKS 705
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   482 VTNVKtviDGMRTQRDTSMSEMSQLKARIKEqnaklLQLTQErakWEAKSKASGAAL----GGENAQQEQLNAAFAH--- 554
Cdd:pfam18971  706 FDEFK---NGKNKDFSKAEETLKALKGSVKD-----LGINPE---WISKVENLNAALnefkNGKNKDFSKVTQAKSDlen 774
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730   555 --KQLIINQ-IKDKVENISKEIESKKE--DINTNDVQMSEL----KAELSALITKCEDL 604
Cdd:pfam18971  775 svKDVIINQkVTDKVDNLNQAVSVAKAmgDFSRVEQVLADLknfsKEQLAQQAQKNEDF 833
ERM_helical pfam20492
Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related ...
373-445 2.09e-05

Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related proteins, ezrin, radixin and moesin. Ezrin was first identified as a constituent of microvilli, radixin as a barbed, end-capping actin-modulating protein from isolated junctional fractions, and moesin as a heparin binding protein. A tumour suppressor molecule responsible for neurofibromatosis type 2 (NF2) is highly similar to ERM proteins and has been designated merlin (moesin-ezrin-radixin-like protein). ERM molecules contain 3 domains, an N-terminal globular domain, an extended alpha-helical domain and a charged C-terminal domain (pfam00769). Ezrin, radixin and merlin also contain a polyproline linker region between the helical and C-terminal domains. The N-terminal domain is highly conserved and is also found in merlin, band 4.1 proteins and members of the band 4.1 superfamily, designated the FERM domain. ERM proteins crosslink actin filaments with plasma membranes. They co-localize with CD44 at actin filament plasma membrane interaction sites, associating with CD44 via their N-terminal domains and with actin filaments via their C-terminal domains. This is the alpha-helical domain, which is involved in intramolecular masking of protein-protein interaction sites, regulating the activity of this proteins.


Pssm-ID: 466641 [Multi-domain]  Cd Length: 120  Bit Score: 44.91  E-value: 2.09e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730   373 REKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQE 445
Cdd:pfam20492   48 EEAERLEQKRQEAEEEKERLEESAEMEAEEKEQLEAELAEAQEEIARLEEEVERKEEEARRLQEELEEAREEE 120
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
332-474 2.10e-05

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 48.61  E-value: 2.10e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  332 KRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEmEKEEQRKRELE 411
Cdd:COG4717    95 EELEELEEELEELEAELEELREELEKLEKLLQLLPLYQELEALEAELAELPERLEELEERLEELRELE-EELEELEAELA 173
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  412 AKEAARKELEKQRQQEWEQaRIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQR 474
Cdd:COG4717   174 ELQEELEELLEQLSLATEE-ELQDLAEELEELQQRLAELEEELEEAQEELEELEEELEQLENE 235
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
948-1002 2.16e-05

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 42.69  E-value: 2.16e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGElQAKGRRrqiGWFPATYVKV 1002
Cdd:cd11770     4 ALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAE-NSKGNR---GLVPKTYLKV 54
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
332-521 2.18e-05

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 48.61  E-value: 2.18e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  332 KRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKRE-KARLEAERKQQEELERQLQ--------RQREIEMEK 402
Cdd:COG4717    64 RKPELNLKELKELEEELKEAEEKEEEYAELQEELEELEEELEElEAELEELREELEKLEKLLQllplyqelEALEAELAE 143
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  403 EEQRKRELEAKEAARKELekQRQQEWEQARIAEMNAQKEREQERVLKQKAHntqlnvELSTLNEKIKELSQRICDTRAGV 482
Cdd:COG4717   144 LPERLEELEERLEELREL--EEELEELEAELAELQEELEELLEQLSLATEE------ELQDLAEELEELQQRLAELEEEL 215
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 442628730  483 TNVKTVIDGMRTQRD--TSMSEMSQLKARIKEQNAKLLQLT 521
Cdd:COG4717   216 EEAQEELEELEEELEqlENELEAAALEERLKEARLLLLIAA 256
Atrophin-1 pfam03154
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
370-417 2.19e-05

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 48.61  E-value: 2.19e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 442628730   370 ADKRE----KARLEAERKQQEELERQlqrqREIEMEKEEQRKRELEAKEAAR 417
Cdd:pfam03154  586 AKKREealeKAKREAEQKAREEKERE----KEKEKEREREREREREAERAAK 633
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
786-834 2.22e-05

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 42.70  E-value: 2.22e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVM-VIKKEGEWWTGTIGSRTGM-FPSNYVQK 834
Cdd:cd11825     4 ALYDYRAQRPDELSFCKHAIITnVEKEDGGWWRGDYGGKKQKwFPANYVEE 54
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
681-731 2.36e-05

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 42.90  E-value: 2.36e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIIlVPLEQNAEpGWLAGEINGHTGWFPESYVE 731
Cdd:cd12073     5 ALYDYQGEGDDEISFDPQETI-TDIEMVDE-GWWKGTCHGHRGLFPANYVE 53
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
683-732 2.40e-05

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 42.64  E-value: 2.40e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  683 YEFNARNAEEITFVPGDIIL-VpleQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11873     6 FDYDAEEPDELTLKVGDIITnV---KKMEEGWWEGTLNGKRGMFPDNFVKV 53
ClassIIa_HDAC5_Gln-rich-N cd10164
Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This ...
383-450 2.48e-05

Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This family consists of the glutamine-rich domain of histone deacetylase 5 (HDAC5). It belongs to a superfamily that consists of the glutamine-rich N-terminal helical extension to certain Class IIa histone deacetylases (HDACs), including HDAC4, HDAC5 and HDCA9; it is missing from HDAC7. This domain confers responsiveness to calcium signals and mediates interactions with transcription factors and cofactors, and it is able to repress transcription independently of the HDAC C-terminal, zinc-dependent catalytic domain. It has many intra- and inter-helical interactions which are possibly involved in reversible assembly and disassembly of proteins. HDACs regulate diverse cellular processes through enzymatic deacetylation of histone as well as non-histone proteins, in particular deacetylating N(6)-acetyl-lysine residues.


Pssm-ID: 197400 [Multi-domain]  Cd Length: 97  Bit Score: 44.04  E-value: 2.48e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  383 KQQEELERQL------------QRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQ 450
Cdd:cd10164    17 KQQQQLQKQLlfaefqkqhehlTRQHEVQLQKHLKVRAELFSEQQQQEILAAKRQQELEQQRKREQQRQEELEKQRLEQQ 96
SH3_PACSIN3 cd11997
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); ...
677-731 2.54e-05

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); PACSIN 3 or Syndapin III (Synaptic dynamin-associated protein III) is expressed ubiquitously and regulates glucose uptake in adipocytes through its role in GLUT1 trafficking. It also modulates the subcellular localization and stimulus-specific function of the cation channel TRPV4. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212930 [Multi-domain]  Cd Length: 56  Bit Score: 42.64  E-value: 2.54e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  677 VKYQAVYEFNARNAEEITFVPGDIiLVPLEQNAEPGWLAGEI-NGHTGWFPESYVE 731
Cdd:cd11997     2 VRVRALYDYTGQEADELSFKAGEE-LLKIGEEDEQGWCKGRLlSGRIGLYPANYVE 56
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
783-833 2.60e-05

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 42.75  E-value: 2.60e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11828     1 LAEALWDHVTMDPEELGFKAGDVIEVLDmSDKDWWWGSIRDEEGWFPASFVR 52
SH3_SNX33 cd11896
Src Homology 3 domain of Sorting Nexin 33; SNX33 interacts with Wiskott-Aldrich syndrome ...
678-731 2.67e-05

Src Homology 3 domain of Sorting Nexin 33; SNX33 interacts with Wiskott-Aldrich syndrome protein (WASP) and plays a role in the maintenance of cell shape and cell cycle progression. It modulates the shedding and endocytosis of cellular prion protein (PrP(c)) and amyloid precursor protein (APP). SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX33 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212829 [Multi-domain]  Cd Length: 55  Bit Score: 42.64  E-value: 2.67e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITfVPGDIILVPLEQNAEPGWLAGEIN-GHTGWFPESYVE 731
Cdd:cd11896     1 KARALYSFQSENKEEIN-IQENEELVIFSENSLDGWLQGQNSrGETGLFPASYVE 54
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
680-731 2.71e-05

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 42.78  E-value: 2.71e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAepgWLAGEINGHTGWFPESYVE 731
Cdd:cd11989     3 QALYPWRAKKDNHLNFNKNDVITVLEQQDM---WWFGEVQGQKGWFPKSYVK 51
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
788-832 2.78e-05

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 42.71  E-value: 2.78e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 442628730  788 YPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYV 832
Cdd:cd11901     8 FNYTAEREDELSLVKGTKVIVMEKCSDgWWRGSYNGQVGWFPSNYV 53
SH3_ARHGAP32_33 cd11835
Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; ...
786-832 2.80e-05

Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; Members of this family contain N-terminal PX and Src Homology 3 (SH3) domains, a central Rho GAP domain, and C-terminal extensions. RhoGAPs (or ARHGAPs) bind to Rho proteins and enhance the hydrolysis rates of bound GTP. ARHGAP32 is also called RICS, PX-RICS, p250GAP, or p200RhoGAP. It is a Rho GTPase-activating protein for Cdc42 and Rac1, and is implicated in the regulation of postsynaptic signaling and neurite outgrowth. PX-RICS, a variant of RICS that contain PX and SH3 domains, is the main isoform expressed during neural development. It is involved in neural functions including axon and dendrite extension, postnatal remodeling, and fine-tuning of neural circuits during early brain development. ARHGAP33, also called sorting nexin 26 or TCGAP (Tc10/CDC42 GTPase-activating protein), is widely expressed in the brain where it is involved in regulating the outgrowth of axons and dendrites and is regulated by the protein tyrosine kinase Fyn. It is translocated to the plasma membrane in adipocytes in response to insulin and may be involved in the regulation of insulin-stimulated glucose transport. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212769 [Multi-domain]  Cd Length: 54  Bit Score: 42.44  E-value: 2.80e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  786 AAY---PYESAEEGDLSFSAGEMVMVI----KKEGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11835     1 AAHvikRYTAQAPDELSLEVGDIVSVIdmppPEESTWWRGKKGFQVGFFPSECV 54
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
948-1000 2.85e-05

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 42.38  E-value: 2.85e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYV 1000
Cdd:cd11806     4 AIADFVATDDSQLSFESGDKLLVLRKPSVDWWWAEHNG-----CCGYIPASHL 51
SH3_SH3RF_2 cd11787
Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1031-1078 2.85e-05

Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the second SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212721 [Multi-domain]  Cd Length: 53  Bit Score: 42.32  E-value: 2.85e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDE---LSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11787     3 KALYDFEMKDEDEkdcLTFKKGDVITVIRRVDENWAEGRLGDKIGIFPISF 53
SH3_FCHSD1_2 cd11895
Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain ...
680-733 2.88e-05

Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212828  Cd Length: 58  Bit Score: 42.65  E-value: 2.88e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  680 QAVYEFNARNAEEITFVPGDII-LVPLEQN-AEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11895     3 RALYSYTGQSPEELSFPEGALIrLLPRAQDgVDDGFWRGEFGGRVGVFPSLLVEEL 58
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
947-1000 2.89e-05

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 42.73  E-value: 2.89e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDS--GWWEGELQAKgrrrqIGWFPATYV 1000
Cdd:cd11836     3 RALYAFEARNPDEISFQPGDIIQVDESQVAepGWLAGELKGK-----TGWFPANYV 53
SH3_ASPP cd11807
Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of ...
786-831 2.91e-05

Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of proteins bind to important regulators of apoptosis (p53, Bcl-2, and RelA) and cell growth (APCL, PP1). They share similarity at their C-termini, where they harbor a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain. Vertebrates contain three members of the family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2 activate the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73), while iASPP is an oncoprotein that specifically inhibits p53-induced apoptosis. The expression of ASPP proteins is altered in tumors; ASPP1 and ASPP2 are downregulated whereas iASPP is upregulated is some cancer types. ASPP proteins also bind and regulate protein phosphatase 1 (PP1), and this binding is competitive with p53 binding. The SH3 domain and the ANK repeats of ASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212741 [Multi-domain]  Cd Length: 57  Bit Score: 42.75  E-value: 2.91e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEG----EWWTGTIGSRTGMFPSNY 831
Cdd:cd11807     5 ALFDYEAENGDELSFREGDELTVLRKGDddetEWWWARLNDKEGYVPRNL 54
rad50 TIGR00606
rad50; All proteins in this family for which functions are known are involvedin recombination, ...
337-624 3.00e-05

rad50; All proteins in this family for which functions are known are involvedin recombination, recombinational repair, and/or non-homologous end joining.They are components of an exonuclease complex with MRE11 homologs. This family is distantly related to the SbcC family of bacterial proteins.This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University).


Pssm-ID: 129694 [Multi-domain]  Cd Length: 1311  Bit Score: 48.50  E-value: 3.00e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   337 YVKGQaelDRRRKIMEDQQRKEREERERKEREEADKREKARLEAE---RKQQEELERQLQRQREIEMEKEEQRKRELE-- 411
Cdd:TIGR00606  184 YIKAL---ETLRQVRQTQGQKVQEHQMELKYLKQYKEKACEIRDQitsKEAQLESSREIVKSYENELDPLKNRLKEIEhn 260
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   412 -------------------AKEAARKELEKQRQQEW----EQARIAEMNAQ---KEREQERVLKQKAHNtQLNVELSTLN 465
Cdd:TIGR00606  261 lskimkldneikalksrkkQMEKDNSELELKMEKVFqgtdEQLNDLYHNHQrtvREKERELVDCQRELE-KLNKERRLLN 339
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   466 EKIKELSQRI--CDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLK--ARIKEQNAKLLQLTQERAKWEAKSKAsgaalggE 541
Cdd:TIGR00606  340 QEKTELLVEQgrLQLQADRHQEHIRARDSLIQSLATRLELDGFErgPFSERQIKNFHTLVIERQEDEAKTAA-------Q 412
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   542 NAQQEQLNAAFAHKQliINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYN 621
Cdd:TIGR00606  413 LCADLQSKERLKQEQ--ADEIRDEKKGLGRTIELKKEILEKKQEELKFVIKELQQLEGSSDRILELDQELRKAERELSKA 490

                   ...
gi 442628730   622 RKN 624
Cdd:TIGR00606  491 EKN 493
SH3_DNMBP_N4 cd11797
Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
1030-1078 3.08e-05

Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP bind the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212731  Cd Length: 50  Bit Score: 42.41  E-value: 3.08e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11797     2 GVALYRFQALEPNELDFEVGDRIRIIATLEDGWLEGELKGRRGIFPHRF 50
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
952-1000 3.16e-05

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 42.70  E-value: 3.16e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGElqakgRRRQIGWFPATYV 1000
Cdd:cd11963    10 FEAVEDNELTFKHGEIIIVLDDSDANWWKGE-----NHRGVGLFPSNFV 53
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
952-1002 3.17e-05

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 42.34  E-value: 3.17e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakGRRRQIgwFPATYVKV 1002
Cdd:cd11782     8 FNADTGVELSFRKGDVITLTRRVDENWYEGRI---GGRQGI--FPVSYVQV 53
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
681-730 3.19e-05

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 42.39  E-value: 3.19e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11816     4 ARFDFEGEQEDELSFSEGDVITLKEYVGEE--WAKGELNGKIGIFPLNFV 51
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
946-1003 3.34e-05

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 42.30  E-value: 3.34e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVKVL 1003
Cdd:cd11920     3 ARAVYDFKAQTSKELSFKKGDTVYILRKIDQNWYEGEHHGR-----VGIFPISYVEKL 55
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
677-731 3.40e-05

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 42.24  E-value: 3.40e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  677 VKYQAVYEFNARNAEEITFVPGDiILVPLEQNAEPGWLAGEI-NGHTGWFPESYVE 731
Cdd:cd11998     1 VRVRALYDYDGQEQDELSFKAGD-ELTKLEDEDEQGWCKGRLdSGQVGLYPANYVE 55
SH3_RUSC1_like cd11810
Src homology 3 domain of RUN and SH3 domain-containing proteins 1 and 2; RUSC1 and RUSC2, that ...
1029-1078 3.42e-05

Src homology 3 domain of RUN and SH3 domain-containing proteins 1 and 2; RUSC1 and RUSC2, that were originally characterized in silico. They are adaptor proteins consisting of RUN, leucine zipper, and SH3 domains. RUSC1, also called NESCA (New molecule containing SH3 at the carboxy-terminus), is highly expressed in the brain and is translocated to the nuclear membrane from the cytoplasm upon stimulation with neurotrophin. It plays a role in facilitating neurotrophin-dependent neurite outgrowth. It also interacts with NEMO (or IKKgamma) and may function in NEMO-mediated activation of NF-kB. RUSC2, also called Iporin, is expressed ubiquitously with highest amounts in the brain and testis. It interacts with the small GTPase Rab1 and the Golgi matrix protein GM130, and may function in linking GTPases to certain intracellular signaling pathways. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212744  Cd Length: 50  Bit Score: 42.05  E-value: 3.42e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNY 1078
Cdd:cd11810     1 VVRALCHHVATDSGQLSFRKGDILRVIARVDDDWLLCTRGSTKGLVPLSY 50
CCDC22 pfam05667
Coiled-coil domain-containing protein 22; Human coiled-coil domain-containing protein 22 ...
374-582 3.45e-05

Coiled-coil domain-containing protein 22; Human coiled-coil domain-containing protein 22 (CCDC22) is involved in regulation of NF-kappa-B signalling; the function may involve association with COMMD8 and a CUL1-dependent E3 ubiquitin ligase complex. It is part of the OMMD/CCDC22/CCDC93 (CCC) complex, which interacts with the multisubunit WASH complex required for endosomal deposition of F-actin and cargo trafficking in conjunction with the retromer. This entry also includes CCDC22 homologs from animals and plants.


Pssm-ID: 461708 [Multi-domain]  Cd Length: 600  Bit Score: 47.71  E-value: 3.45e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERQLQRQREI-EMEKE-EQRKRELEAKEAARKELEKQRQQEWEQarIAEMNAQ-KEREQERVLKQ 450
Cdd:pfam05667  313 PAATSSPPTKVETEEELQQQREEELeELQEQlEDLESSIQELEKEIKKLESSIKQVEEE--LEELKEQnEELEKQYKVKK 390
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   451 KAHNTQLNVE--LSTLNEKIKELSQRICD-----TRAGVTNVKTvIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQE 523
Cdd:pfam05667  391 KTLDLLPDAEenIAKLQALVDASAQRLVElagqwEKHRVPLIEE-YRALKEAKSNKEDESQRKLEEIKELREKIKEVAEE 469
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730   524 RAKWEAKSKASGAALggENAQQEQLNAAFAHKQL-IINQIKDKVENISKEIESKKE---DINT 582
Cdd:pfam05667  470 AKQKEELYKQLVAEY--ERLPKDVSRSAYTRRILeIVKNIKKQKEEITKILSDTKSlqkEINS 530
SH3_GRAF3 cd12066
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is ...
1032-1079 3.52e-05

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is also called Rho GTPase activating protein 42 (ARHGAP42) or ARHGAP10-like. Though its function has not been characterized, it may be a GAP with activity towards RhoA and Cdc42, based on its similarity to GRAF and GRAF2. It contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212999  Cd Length: 55  Bit Score: 42.36  E-value: 3.52e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRD-EPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12066     4 AMYSCKAEHSHELSFPQGAIFSNVYPSvEPGWLKATYEGKTGLVPENYV 52
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
785-833 3.64e-05

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 42.34  E-value: 3.64e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11782     3 RAKYNFNADTGVELSFRKGDVITLTRRvDENWYEGRIGGRQGIFPVSYVQ 52
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
681-731 3.78e-05

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 42.34  E-value: 3.78e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11782     4 AKYNFNADTGVELSFRKGDVIT--LTRRVDENWYEGRIGGRQGIFPVSYVQ 52
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
786-832 3.79e-05

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 42.32  E-value: 3.79e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK---EGEWWT-GTIGSRTGMFPSNYV 832
Cdd:cd11904     5 ALYPFSSSNDEELNFEKGEVMDVIEKpenDPEWWKcRKANGQVGLVPKNYV 55
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
1032-1079 3.88e-05

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 42.26  E-value: 3.88e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11919     5 AKFDFKAQTLKELPLQKGDIVYIYKQIDQNWYEGEHHGRVGIFPRSYI 52
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
391-631 3.89e-05

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 47.79  E-value: 3.89e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   391 QLQRQREIEMEKEEQRK-------RELEAKEAARKELEKQRQQEWE----QARIAEMNAQKEREQERVLKQKAHNTQLNV 459
Cdd:pfam05483  328 QLTEEKEAQMEELNKAKaahsfvvTEFEATTCSLEELLRTEQQRLEknedQLKIITMELQKKSSELEEMTKFKNNKEVEL 407
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   460 E-LSTL----------NEKIKELSQRICDTRAGVT-----------NVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKL 517
Cdd:pfam05483  408 EeLKKIlaedeklldeKKQFEKIAEELKGKEQELIfllqarekeihDLEIQLTAIKTSEEHYLKEVEDLKTELEKEKLKN 487
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   518 LQLTQERAKWEAKSK-----ASGAALGGENaQQEQLNAAFAHKQLIINQI----------KDKVENISKEIESKKEDI-- 580
Cdd:pfam05483  488 IELTAHCDKLLLENKeltqeASDMTLELKK-HQEDIINCKKQEERMLKQIenleekemnlRDELESVREEFIQKGDEVkc 566
                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   581 -------NTNDVQMSELKAE--LSALITKCEDLYKEYDVQRTSVLELKYNRKNETSVSSA 631
Cdd:pfam05483  567 kldkseeNARSIEYEVLKKEkqMKILENKCNNLKKQIENKNKNIEELHQENKALKKKGSA 626
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
1032-1079 4.16e-05

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 42.29  E-value: 4.16e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1032 ALYPYKAQNDDELSF-DKDDIISVLGRDEpEWWRG--ELNGLSGLFPSNYV 1079
Cdd:cd11934     7 AVYDYNAADEDEVSFqDGDTIVNVQQIDD-GWMYGtvERTGDTGMLPANYV 56
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
952-1001 4.17e-05

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 42.22  E-value: 4.17e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRRrqiGWFPATYVK 1001
Cdd:cd11928     9 YEGKEPGDLKFNKGDIIILRRKVDENWYHGELN--GCH---GFLPASYIQ 53
SH3_ephexin1 cd11939
Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called ...
947-1001 4.17e-05

Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called NGEF or ARHGEF27); Ephexin-1, also called NGEF (neuronal GEF) or ARHGEF27, activates RhoA, Tac1, and Cdc42 by exchanging bound GDP for free GTP. It is expressed mainly in the brain in a region associated with movement control. It regulates the stability of postsynaptic acetylcholine receptor (AChR) clusters and thus, plays a critical role in the maturation and neurotransmission of neuromuscular junctions. Ephexin-1 directly interacts with the ephrin receptor EphA4 and their coexpression enhances the ability of ephexin-1 to activate RhoA. It is required for normal axon growth and EphA-induced growth cone collapse. Ephexin-1 contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212872 [Multi-domain]  Cd Length: 55  Bit Score: 42.24  E-value: 4.17e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11939     3 QCVHPYVSQEPDELSLELADVLNILDKTDDGWIFGERLHDQER---GWFPSSVVE 54
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
371-453 4.30e-05

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 46.84  E-value: 4.30e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAERKQQEE---LERQLQRQREIEMEKEEQRKRELEAKE---------AARKELEKQRQQEwEQARIAEMNA 438
Cdd:pfam13868   84 EREQKRQEEYEEKLQEReqmDEIVERIQEEDQAEAEEKLEKQRQLREeidefneeqAEWKELEKEEERE-EDERILEYLK 162
                           90
                   ....*....|....*
gi 442628730   439 QKEREQERVLKQKAH 453
Cdd:pfam13868  163 EKAEREEEREAEREE 177
SH3_PACSIN_like cd11999
Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C ...
1029-1079 4.34e-05

Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212932 [Multi-domain]  Cd Length: 56  Bit Score: 42.23  E-value: 4.34e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDK-DDIISVLGRDEPEWWRGELN-GLSGLFPSNYV 1079
Cdd:cd11999     3 RVRAVYDYTGQEPDELSFKAgEELLKVEDEDEQGWCKGVTDgGAVGLYPANYV 55
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
784-834 4.39e-05

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 42.17  E-value: 4.39e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK---EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11988     4 YRALYPFEARNHDEMSFNAGDIIQVDEKtvgEPGWLYGSFQGNFGWFPCNYVEK 57
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
373-580 4.58e-05

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 46.83  E-value: 4.58e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  373 REKARLEAERKQQ---------EELERQLQRQREIEMEKEEQRK--RELEAKEAARKELEKQ-RQQEWEQ---------- 430
Cdd:COG1340    56 REEAQELREKRDElnekvkelkEERDELNEKLNELREELDELRKelAELNKAGGSIDKLRKEiERLEWRQqtevlspeee 135
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  431 ----ARIAEMNAQ-KEREQERVLKQKAHNT-----QLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSM 500
Cdd:COG1340   136 kelvEKIKELEKElEKAKKALEKNEKLKELraelkELRKEAEEIHKKIKELAEEAQELHEEMIELYKEADELRKEADELH 215
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  501 SEMSQLKARIKEQNAKLLQLTQERAKWeakskasgaalggenaqQEQLNAAFAHkqliinQIKDKVENISKEIESKKEDI 580
Cdd:COG1340   216 KEIVEAQEKADELHEEIIELQKELREL-----------------RKELKKLRKK------QRALKREKEKEELEEKAEEI 272
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
951-1001 4.60e-05

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 41.91  E-value: 4.60e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  951 PYEATSTEQLSLTRGQLIMIRKKT--DSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd11987     7 PFEARSHDEITIQPGDIVMVDESQtgEPGWLGGELKGK-----TGWFPANYAE 54
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
952-1001 4.69e-05

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 41.92  E-value: 4.69e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKT--DSGWWEGElqAKGRrrqIGWFPATYVK 1001
Cdd:cd11977     9 FAARDMRELSLREGDVVRIYSRIggDQGWWKGE--TNGR---IGWFPSTYVE 55
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
681-731 4.97e-05

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 41.93  E-value: 4.97e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11946     5 AKYDFKATADDELSFKRGDILKV-LNEECDQNWYKAELNGKDGFIPKNYIE 54
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
325-625 5.04e-05

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 47.66  E-value: 5.04e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   325 GQTSFEDKRKENYVKGQAE-LDRRRKIMEDQQRKEREERERKEREEAD---------KREKARLEAERKQQEELERQLQR 394
Cdd:TIGR00618  179 TQLALMEFAKKKSLHGKAElLTLRSQLLTLCTPCMPDTYHERKQVLEKelkhlrealQQTQQSHAYLTQKREAQEEQLKK 258
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   395 QREI-EMEKEEQRKRELEAK-EAARKELEKQRQQE---WEQARIAEMNAQKER------EQERVLKQKAHNTQLNVELST 463
Cdd:TIGR00618  259 QQLLkQLRARIEELRAQEAVlEETQERINRARKAAplaAHIKAVTQIEQQAQRihtelqSKMRSRAKLLMKRAAHVKQQS 338
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   464 LNEKIKELSQ---RICDTRAGVTNVKTvidGMRTQRDTSMSEMSQLKA----------RIKEQNAKLLQLTQERAKWEAK 530
Cdd:TIGR00618  339 SIEEQRRLLQtlhSQEIHIRDAHEVAT---SIREISCQQHTLTQHIHTlqqqkttltqKLQSLCKELDILQREQATIDTR 415
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   531 SKAsgaalggENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKK-EDINTNDVQMSeLKAELSALITKcEDLYKEYd 609
Cdd:TIGR00618  416 TSA-------FRDLQGQLAHAKKQQELQQRYAELCAAAITCTAQCEKlEKIHLQESAQS-LKEREQQLQTK-EQIHLQE- 485
                          330
                   ....*....|....*.
gi 442628730   610 vQRTSVLELKynRKNE 625
Cdd:TIGR00618  486 -TRKKAVVLA--RLLE 498
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
784-833 5.13e-05

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 42.00  E-value: 5.13e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK--EGeWWTGT--IGSRTGMFPSNYVQ 833
Cdd:cd11783     2 YVALYPYKPQKPDELELRKGEMYTVTEKcqDG-WFKGTslRTGQSGVFPGNYVQ 54
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
681-729 5.24e-05

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 41.70  E-value: 5.24e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESY 729
Cdd:cd11817     4 ALYDFTGETEEDLSFQRGDRILVTEHLDAE--WSRGRLNGREGIFPRAF 50
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
947-1003 5.38e-05

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 41.90  E-value: 5.38e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakgRRRQIGWFPATYVKVL 1003
Cdd:cd11916     5 QALYSYAPQNDDELELRDGDIVDVMEKCDDGWFVGTSR---RTKQFGTFPGNYVKLL 58
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
678-732 5.49e-05

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 41.63  E-value: 5.49e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpgWLAGEINGHTGWFPESYVEK 732
Cdd:cd11838     1 EYIALYPYESNEPGDLTFNAGDVILV-TKKDGE--WWTGTIGDRTGIFPSNYVRP 52
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
678-733 5.49e-05

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 41.92  E-value: 5.49e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNaEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11972     4 KVVAIYDYTKDKEDELSFQEGAIIYV-IKKN-DDGWYEGVMNGVTGLFPGNYVESI 57
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
680-732 5.70e-05

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 41.55  E-value: 5.70e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAepGWLAGEINGH-TGWFPESYVEK 732
Cdd:cd11825     3 KALYDYRAQRPDELSFCKHAIITNVEKEDG--GWWRGDYGGKkQKWFPANYVEE 54
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
785-834 5.82e-05

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 41.93  E-value: 5.82e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11978     4 IARYDFCARDMRELSLLKGDVVKIYTKMSTngWWRGEVNGRVGWFPSTYVEE 55
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
1030-1079 6.13e-05

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 41.53  E-value: 6.13e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGE-LNGLSGLFPSNYV 1079
Cdd:cd11770     2 YEALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAEnSKGNRGLVPKTYL 52
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
433-619 6.14e-05

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 46.06  E-value: 6.14e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  433 IAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKE 512
Cdd:COG1340     3 TDELSSSLEELEEKIEELREEIEELKEKRDELNEELKELAEKRDELNAQVKELREEAQELREKRDELNEKVKELKEERDE 82
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  513 QNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNA----------AFAHKQLIINQIKDKVENIS--KEIESKKEDI 580
Cdd:COG1340    83 LNEKLNELREELDELRKELAELNKAGGSIDKLRKEIERlewrqqtevlSPEEEKELVEKIKELEKELEkaKKALEKNEKL 162
                         170       180       190
                  ....*....|....*....|....*....|....*....
gi 442628730  581 NTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELK 619
Cdd:COG1340   163 KELRAELKELRKEAEEIHKKIKELAEEAQELHEEMIELY 201
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
1032-1079 6.15e-05

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 41.91  E-value: 6.15e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1032 ALYPYKAQNDDELSF-DKDDIISVLGRDEpEWWRGEL--NGLSGLFPSNYV 1079
Cdd:cd11935     5 AMYDYSAQDEDEVSFrDGDYIVNVQPIDE-GWMYGTVqrTGRTGMLPANYI 54
SH3_Sorbs2_2 cd11923
Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
947-1003 6.19e-05

Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212856 [Multi-domain]  Cd Length: 57  Bit Score: 41.83  E-value: 6.19e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  947 QVIAPYE--ATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRRQiGWFPATYVKVL 1003
Cdd:cd11923     2 EAVAKYNfnADTNVELSLRKGDRVVLLKQVDQNWYEGKI--PGTNRQ-GIFPVSYVEVI 57
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
784-834 6.29e-05

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 41.75  E-value: 6.29e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK--EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12053     2 YIVEYDYDAVHEDELTIRVGEIIRNVKKleEEGWLEGELNGRRGMFPDNFVKE 54
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
1031-1079 6.30e-05

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 41.92  E-value: 6.30e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGR--DEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11977     4 VARYNFAARDMRELSLREGDVVRIYSRigGDQGWWKGETNGRIGWFPSTYV 54
PRK12705 PRK12705
hypothetical protein; Provisional
373-533 6.60e-05

hypothetical protein; Provisional


Pssm-ID: 237178 [Multi-domain]  Cd Length: 508  Bit Score: 47.01  E-value: 6.60e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  373 REKARLEAER-KQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEweqARIAEMNAQKEREQERVLKQK 451
Cdd:PRK12705   39 LQEAQKEAEEkLEAALLEAKELLLRERNQQRQEARREREELQREEERLVQKEEQLD---ARAEKLDNLENQLEEREKALS 115
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  452 AHNTQLNVELSTLNEKIKElsqricdtragvtnvktvIDGMRTQRDTSMSeMSQLKARIKEQNAKLLQLTQERAKWEAKS 531
Cdd:PRK12705  116 ARELELEELEKQLDNELYR------------------VAGLTPEQARKLL-LKLLDAELEEEKAQRVKKIEEEADLEAER 176

                  ..
gi 442628730  532 KA 533
Cdd:PRK12705  177 KA 178
SH3_NoxO1_2 cd12024
Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox ...
1032-1081 6.68e-05

Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox Organizing protein 1 (NoxO1) is a critical regulator of enzyme kinetics of the nonphagocytic NADPH oxidase Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Nox1 is expressed in colon, stomach, uterus, prostate, and vascular smooth muscle cells. NoxO1 is involved in targeting activator subunits (such as NoxA1) to Nox1. It is co-localized with Nox1 in the membranes of resting cells and directs the subcellular localization of Nox1. NoxO1 contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of NoxO1. The tandem SH3 domains of NoxO1 interact with the PRR of p22phox, which also complexes with Nox1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212957  Cd Length: 53  Bit Score: 41.55  E-value: 6.68e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYVGP 1081
Cdd:cd12024     4 ATRAYEAQKEDELSVPAGVVVEVLQKSDNGWWLIRYNGRAGYVPSMYLQP 53
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
786-833 6.97e-05

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 41.62  E-value: 6.97e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11989     4 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVK 51
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
378-474 7.03e-05

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 46.30  E-value: 7.03e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  378 LEAERKQQEELERQLQRQREIEMEKEEQRKR---ELEAKEAARKELEKQRQQewEQARIAEMNAQKEREQERVLKQKAHN 454
Cdd:COG4942   145 APARREQAEELRADLAELAALRAELEAERAEleaLLAELEEERAALEALKAE--RQKLLARLEKELAELAAELAELQQEA 222
                          90       100
                  ....*....|....*....|
gi 442628730  455 TQLNVELSTLNEKIKELSQR 474
Cdd:COG4942   223 EELEALIARLEAEAAAAAER 242
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
785-833 7.13e-05

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 41.53  E-value: 7.13e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK---EGEWW-----TGTigsrTGMFPSNYVQ 833
Cdd:cd11767     3 VALYPFTGENDEELSFEKGERLEIIEKpedDPDWWkarnaLGT----TGLVPRNYVE 55
SH3_SNX18 cd11897
Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal ...
680-731 7.50e-05

Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. It binds FIP5 and is required for apical lumen formation. It may also play a role in axonal elongation. SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX18 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212830 [Multi-domain]  Cd Length: 55  Bit Score: 41.52  E-value: 7.50e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEpGWLAG-EINGHTGWFPESYVE 731
Cdd:cd11897     3 RALYDFRSENPGEISLREHEVLSLCSEQDIE-GWLEGvNSRGDRGLFPASYVE 54
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
680-733 7.70e-05

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 41.49  E-value: 7.70e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEqnAEPGWLAGEINGHTGWFPESYVEKL 733
Cdd:cd12054     4 KVLFEYVPQNEDELELKVGDIIDINEE--VEEGWWSGTLNGKSGLFPSNFVKEL 55
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
374-591 7.74e-05

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 47.09  E-value: 7.74e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEE----LERQ---LQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQER 446
Cdd:pfam01576  125 EKVTTEAKIKKLEEdillLEDQnskLSKERKLLEERISEFTSNLAEEEEKAKSLSKLKNKH--EAMISDLEERLKKEEKG 202
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   447 VLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQE--- 523
Cdd:pfam01576  203 RQELEKAKRKLEGESTDLQEQIAELQAQIAELRAQLAKKEEELQAALARLEEETAQKNNALKKIRELEAQISELQEDles 282
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 442628730   524 ----RAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIEskkEDINTNDVQMSELK 591
Cdd:pfam01576  283 eraaRNKAEKQRRDLGEELEALKTELEDTLDTTAAQQELRSKREQEVTELKKALE---EETRSHEAQLQEMR 351
SH3_srGAP4 cd11956
Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, ...
681-730 7.85e-05

Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, is highly expressed in hematopoietic cells and may play a role in lymphocyte differentiation. It is able to stimulate the GTPase activity of Rac1, Cdc42, and RhoA. In the nervous system, srGAP4 has been detected in differentiating neurites and may be involved in axon and dendritic growth. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212889 [Multi-domain]  Cd Length: 55  Bit Score: 41.36  E-value: 7.85e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  681 AVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11956     6 ACFDYTGRTAQELSFKRGDVLL--LHSKASSDWWRGEHNGMRGLIPHKYI 53
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
681-730 7.90e-05

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 41.19  E-value: 7.90e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11804     4 AKHDFKATAEDELSFKKGSILKV-LNMEDDPNWYKAELDGKEGLIPKNYI 52
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
373-526 8.00e-05

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 46.07  E-value: 8.00e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   373 REKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKE----LEKQRQQEWEQARIAEmnaQKEREQERVL 448
Cdd:pfam13868   53 RERALEEEEEKEEERKEERKRYRQELEEQIEEREQKRQEEYEEKLQEreqmDEIVERIQEEDQAEAE---EKLEKQRQLR 129
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730   449 KQ-KAHNTQLNVELSTLNEKIKELSQRICDTRAgvtnvktvidgMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAK 526
Cdd:pfam13868  130 EEiDEFNEEQAEWKELEKEEEREEDERILEYLK-----------EKAEREEEREAEREEIEEEKEREIARLRAQQEKAQ 197
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
953-999 8.10e-05

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 41.15  E-value: 8.10e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 442628730  953 EATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRqiGWFPATY 999
Cdd:cd11821     9 QADNDDELTFSEGEIIVVTGEEDDEWWEGHIEGDPSRR--GVFPVSF 53
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
946-1002 8.12e-05

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 41.16  E-value: 8.12e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQ-LIMIRKKTDSGWWEGElQAKGrrrQIGWFPATYVKV 1002
Cdd:cd11763     2 VRALYDFDSQPSGELSLRAGEvLTITRQDVGDGWLEGR-NSRG---EVGLFPSSYVEI 55
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
783-831 8.17e-05

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 41.33  E-value: 8.17e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWT-GTIGSRTGMFPSNY 831
Cdd:cd11778     1 YVEALYDYEAQGDDEISIRVGDRIAVIRGDdGSGWTyGEINGVKGLFPTSY 51
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
944-1000 8.27e-05

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 41.35  E-value: 8.27e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  944 EIAQVIAPYEATSTEQLSLTRGQLIMIRKKT--DSGWWEGELQAKGrrrqiGWFPATYV 1000
Cdd:cd12056     2 EYCKALFHYEGTNEDELDFKEGEIILIISKDtgEPGWWKGELNGKE-----GVFPDNFV 55
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
786-833 8.39e-05

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 41.47  E-value: 8.39e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGS-RTGMFPSNYVQ 833
Cdd:cd11998     5 ALYDYDGQEQDELSFKAGDELTKLEDEDEqgWCKGRLDSgQVGLYPANYVE 55
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
786-834 8.46e-05

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 41.51  E-value: 8.46e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVM-VIKKEGEWWTGTIGSRTGM-FPSNYVQK 834
Cdd:cd11970     8 ALFDYKAQREDELTFTKNAIIQnVEKQEGGWWRGDYGGKKQLwFPSNYVEE 58
SH3_Brk cd11847
Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called ...
1029-1079 8.49e-05

Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called PTK6; Brk is a cytoplasmic (or non-receptor) PTK with limited homology to Src kinases. It has been found to be overexpressed in a majority of breast tumors. It plays roles in normal cell differentiation, proliferation, survival, migration, and cell cycle progression. Brk substrates include RNA-binding proteins (SLM-1/2, Sam68), transcription factors (STAT3/5), and signaling molecules (Akt, paxillin, IRS-4). Src kinases in general contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr; they are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation site. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212781 [Multi-domain]  Cd Length: 58  Bit Score: 41.39  E-value: 8.49e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEpEWWRGELNGLS------GLFPSNYV 1079
Cdd:cd11847     1 IYKALWDFKARGDEELSFQAGDQFRIAERSG-DWWTALKLDRAggvvaqGFVPNNYL 56
SH3_Cyk3p-like cd11889
Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 ...
786-832 8.51e-05

Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 (Cyk3 or Cyk3p) is a component of the actomyosin ring independent cytokinesis pathway in yeast. It interacts with Inn1 and facilitates its recruitment to the bud neck, thereby promoting cytokinesis. Cyk3p contains an N-terminal SH3 domain and a C-terminal transglutaminase-like domain. The Cyk3p SH3 domain binds to the C-terminal proline-rich region of Inn1. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212822  Cd Length: 53  Bit Score: 41.33  E-value: 8.51e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGT-IGSRT-GMFPSNYV 832
Cdd:cd11889     4 AVYSWAGETEGDLGFLEGDLIEVLSiGDGSWWSGKlRRNGAeGIFPSNFV 53
SH3_BOI cd11886
Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces ...
679-729 8.76e-05

Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces cerevisiae proteins BOI1 and BOI2, and similar proteins. They contain an N-terminal SH3 domain, a Sterile alpha motif (SAM), and a Pleckstrin homology (PH) domain at the C-terminus. BOI1 and BOI2 interact with the SH3 domain of Bem1p, a protein involved in bud formation. They promote polarized cell growth and participates in the NoCut signaling pathway, which is involved in the control of cytokinesis. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212819  Cd Length: 55  Bit Score: 41.16  E-value: 8.76e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQNAE--PGWLAGE--INGHTGWFPESY 729
Cdd:cd11886     2 LIVIHDFNARSEDELTLKPGDKIEL-IEDDEEfgDGWYLGRnlRTGETGLFPVVF 55
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
946-1002 8.91e-05

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 41.24  E-value: 8.91e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSgWWEGELQAkgrrrQIGWFPATYVKV 1002
Cdd:cd11989     2 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQG-----QKGWFPKSYVKL 52
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
952-1001 8.97e-05

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 41.51  E-value: 8.97e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakGRRRQIgWFPATYVK 1001
Cdd:cd11970    12 YKAQREDELTFTKNAIIQNVEKQEGGWWRGDY---GGKKQL-WFPSNYVE 57
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
947-999 9.09e-05

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 41.03  E-value: 9.09e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIA--PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATY 999
Cdd:cd11845     1 IYVAlyDYEARTDDDLSFKKGDRLQILDDSDGDWWLARHLSTGKE---GYIPSNY 52
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
958-1002 9.23e-05

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 41.21  E-value: 9.23e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 442628730  958 EQLSLTRGQLIMIRKKTDSGWWEGElqakgRRRQIGWFPATYVKV 1002
Cdd:cd11828    14 EELGFKAGDVIEVLDMSDKDWWWGS-----IRDEEGWFPASFVRL 53
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
786-833 9.37e-05

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 40.98  E-value: 9.37e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTIGSRTG-MFPSNYVQ 833
Cdd:cd11969     4 ALYDYRAKRSDELSFCKGALIHNVSKEtGGWWKGDYGGKVQhYFPSNYVE 53
CCDC158 pfam15921
Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. ...
375-619 9.39e-05

Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. The function is not known.


Pssm-ID: 464943 [Multi-domain]  Cd Length: 1112  Bit Score: 46.65  E-value: 9.39e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   375 KARLEAERKQQEE--LERQLQ--------RQREIEMEKEEQR----------------KRELEakeaaRKELEKQRQQEW 428
Cdd:pfam15921  360 EARTERDQFSQESgnLDDQLQklladlhkREKELSLEKEQNKrlwdrdtgnsitidhlRRELD-----DRNMEVQRLEAL 434
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   429 EQARIAEMNAQKEREQERVlkqKAHNTQLnvelstlnEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKA 508
Cdd:pfam15921  435 LKAMKSECQGQMERQMAAI---QGKNESL--------EKVSSLTAQLESTKEMLRKVVEELTAKKMTLESSERTVSDLTA 503
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   509 RIKEQ----NAKLLQLTQERAKWEAK------SKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISK------- 571
Cdd:pfam15921  504 SLQEKeraiEATNAEITKLRSRVDLKlqelqhLKNEGDHLRNVQTECEALKLQMAEKDKVIEILRQQIENMTQlvgqhgr 583
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|...
gi 442628730   572 -----EIESKKEDINTNDVQMsELKaELSALITKCEDLYKEYDVqRTSVLELK 619
Cdd:pfam15921  584 tagamQVEKAQLEKEINDRRL-ELQ-EFKILKDKKDAKIRELEA-RVSDLELE 633
DUF4659 pfam15558
Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins ...
330-461 9.62e-05

Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins in this family are typically between 427 and 674 amino acids in length. There are two completely conserved residues (D and I) that may be functionally important.


Pssm-ID: 464768 [Multi-domain]  Cd Length: 374  Bit Score: 46.18  E-value: 9.62e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERE------RKEREEADKREKARLEAERKQQEELERQ-LQRQREIEMEK 402
Cdd:pfam15558   36 ELRRRDQKRQETLERERRLLLQQSQEQWQAEKEQrkarlgREERRRADRREKQVIEKESRWREQAEDQeNQRQEKLERAR 115
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   403 --EEQRKRE----LEAKEAARKEL-EKQRQQEWEQARIAEMNAQ-KEREQERVLKQKAHNTQLNVEL 461
Cdd:pfam15558  116 qeAEQRKQCqeqrLKEKEEELQALrEQNSLQLQERLEEACHKRQlKEREEQKKVQENNLSELLNHQA 182
SH3_Tks_1 cd12015
First Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
948-999 9.72e-05

First Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the first SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212948  Cd Length: 53  Bit Score: 40.87  E-value: 9.72e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWW----EGELqakgrrrqiGWFPATY 999
Cdd:cd12015     4 VVADYKKQQPNEISLRAGDVVDVIEKNENGWWfvslEDEQ---------GWVPATY 50
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
680-731 9.90e-05

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 41.09  E-value: 9.90e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11927     4 KALYNYEGKEPGDLKFSKGDIII--LRRQVDENWYHGEVNGIHGFFPTNFVQ 53
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
383-556 9.97e-05

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 45.95  E-value: 9.97e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  383 KQQEELERQLQRQREIEMEKEEQRKRELEAKEAAR-KELEKQRQQEWEQARIAEMNAQKEREQErvlKQKAHNTQLNVEL 461
Cdd:PRK09510   68 QQQQKSAKRAEEQRKKKEQQQAEELQQKQAAEQERlKQLEKERLAAQEQKKQAEEAAKQAALKQ---KQAEEAAAKAAAA 144
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  462 STLNEKIKElsqricdtragvtnvktvidgMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGE 541
Cdd:PRK09510  145 AKAKAEAEA---------------------KRAAAAAKKAAAEAKKKAEAEAAKKAAAEAKKKAEAEAAAKAAAEAKKKA 203
                         170
                  ....*....|....*
gi 442628730  542 NAQQEQLNAAFAHKQ 556
Cdd:PRK09510  204 EAEAKKKAAAEAKKK 218
SH3_Tks5_1 cd12074
First Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
784-833 1.00e-04

First Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the first SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213007 [Multi-domain]  Cd Length: 53  Bit Score: 40.85  E-value: 1.00e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12074     2 YVVVSNYEKQENSEISLQAGEVVDVIEKnESGWWFVSTAEEQGWVPATYLE 52
SH3_Tks5_2 cd12077
Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
1028-1079 1.01e-04

Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the second SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213010  Cd Length: 54  Bit Score: 41.17  E-value: 1.01e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1028 DKVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12077     1 EKYVTVQPYTSQGKDEIGFEKGVTVEVIQKNLEGWWYIRYLGKEGWAPASYL 52
CwlO1 COG3883
Uncharacterized N-terminal coiled-coil domain of peptidoglycan hydrolase CwlO [Function ...
409-683 1.05e-04

Uncharacterized N-terminal coiled-coil domain of peptidoglycan hydrolase CwlO [Function unknown];


Pssm-ID: 443091 [Multi-domain]  Cd Length: 379  Bit Score: 45.98  E-value: 1.05e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  409 ELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAgvtNVKTV 488
Cdd:COG3883    17 QIQAKQKELSELQAELEAA--QAELDALQAELEELNEEYNELQAELEALQAEIDKLQAEIAEAEAEIEERRE---ELGER 91
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  489 IDGM-RTQRDTSMSE---------------------MSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQE 546
Cdd:COG3883    92 ARALyRSGGSVSYLDvllgsesfsdfldrlsalskiADADADLLEELKADKAELEAKKAELEAKLAELEALKAELEAAKA 171
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  547 QLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYK----EYDVQRTSVLELKYNR 622
Cdd:COG3883   172 ELEAQQAEQEALLAQLSAEEAAAEAQLAELEAELAAAEAAAAAAAAAAAAAAAAAAAAAAaaaaAAAAAAAAASAAGAGA 251
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730  623 KNETSVSSAWDTGSSSAWEETGTTVTDPYAVASNDISALAAPAVDLGGPAPEGFVKYQAVY 683
Cdd:COG3883   252 AGAAGAAAGSAGAAGAAAGAAGAGAAAASAAGGGAGGAGGGGGGGGAASGGSGGGSGGAGG 312
YqiK COG2268
Uncharacterized membrane protein YqiK, contains Band7/PHB/SPFH domain [Function unknown];
341-491 1.05e-04

Uncharacterized membrane protein YqiK, contains Band7/PHB/SPFH domain [Function unknown];


Pssm-ID: 441869 [Multi-domain]  Cd Length: 439  Bit Score: 46.02  E-value: 1.05e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERK---QQEELERQLQRQREI-EMEKE--------EQRKR 408
Cdd:COG2268   225 EAELEQEREIETARIAEAEAELAKKKAEERREAETARAEAEAAyeiAEANAEREVQRQLEIaEREREielqekeaEREEA 304
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  409 ELEAKEAARKELEKQRQQEWEQ--ARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVk 486
Cdd:COG2268   305 ELEADVRKPAEAEKQAAEAEAEaeAEAIRAKGLAEAEGKRALAEAWNKLGDAAILLMLIEKLPEIAEAAAKPLEKIDKI- 383

                  ....*
gi 442628730  487 TVIDG 491
Cdd:COG2268   384 TIIDG 388
SH3_MPP cd11862
Src Homology 3 domain of Membrane Protein, Palmitoylated (or MAGUK p55 subfamily member) ...
1032-1076 1.08e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated (or MAGUK p55 subfamily member) proteins; The MPP/p55 subfamily of MAGUK (membrane-associated guanylate kinase) proteins includes at least eight vertebrate members (MPP1-7 and CASK), four Drosophila proteins (Stardust, Varicose, CASK and Skiff), and other similar proteins; they all contain one each of the core of three domains characteristic of MAGUK proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, most members except for MPP1 contain N-terminal L27 domains and some also contain a Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. CASK has an additional calmodulin-dependent kinase (CaMK)-like domain at the N-terminus. Members of this subfamily are scaffolding proteins that play important roles in regulating and establishing cell polarity, cell adhesion, and synaptic targeting and transmission, among others. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212796  Cd Length: 61  Bit Score: 41.03  E-value: 1.08e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730 1032 ALYPYKAQNDDE-------LSFDKDDIISVLGRDEPEWWR----GELNGLSGLFPS 1076
Cdd:cd11862     4 ALFDYDPEEDPLipckeagLSFKKGDILQIVNQDDPNWWQarkvGDPNGRAGLIPS 59
CAF-1_p150 pfam11600
Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide ...
330-456 1.13e-04

Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide subunit of CAF-1, which functions in depositing newly synthesized and acetylated histones H3/H4 into chromatin during DNA replication and repair. CAF-1_p150 includes the HP1 interaction site, the PEST, KER and ED interacting sites. CAF-1_p150 interacts directly with newly synthesized and acetylated histones through the acidic KER and ED domains. The PEST domain is associated with proteins that undergo rapid proteolysis.


Pssm-ID: 402959 [Multi-domain]  Cd Length: 164  Bit Score: 43.91  E-value: 1.13e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREiemEKEEQRKre 409
Cdd:pfam11600   11 EEKEKQRLEKDKERLRRQLKLEAEKEEKERLKEEAKAEKERAKEEARRKKEEEKELKEKERREKKEKD---EKEKAEK-- 85
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*..
gi 442628730   410 LEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQ 456
Cdd:pfam11600   86 LRLKEEKRKEKQEALEAKLEEKRKKEEEKRLKEEEKRIKAEKAEITR 132
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
785-832 1.14e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 40.80  E-value: 1.14e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEG--EWWTGTIGSRTGMFPSNYV 832
Cdd:cd11804     3 VAKHDFKATAEDELSFKKGSILKVLNMEDdpNWYKAELDGKEGLIPKNYI 52
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
946-1001 1.17e-04

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 40.63  E-value: 1.17e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgrRRQIGWFPATYVK 1001
Cdd:cd11815     2 AVVLHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYRGKC-----KNTTGIFPANHVK 52
GumC COG3206
Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];
323-490 1.20e-04

Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442439 [Multi-domain]  Cd Length: 687  Bit Score: 46.16  E-value: 1.20e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  323 LPGQTSFEDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQRE----- 397
Cdd:COG3206   210 LSEEAKLLLQQLSELESQLAEARAELAEAEARLAALRAQLGSGPDALPELLQSPVIQQLRAQLAELEAELAELSArytpn 289
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  398 ----IEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNV---ELSTLNEKIKE 470
Cdd:COG3206   290 hpdvIALRAQIAALRAQLQQEAQRILASLEAELEALQAREASLQAQLAQLEARLAELPELEAELRRlerEVEVARELYES 369
                         170       180
                  ....*....|....*....|....
gi 442628730  471 LSQRICDTR----AGVTNVKtVID 490
Cdd:COG3206   370 LLQRLEEARlaeaLTVGNVR-VID 392
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
951-1000 1.22e-04

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 40.75  E-value: 1.22e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  951 PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgrRRQIGWFPATYV 1000
Cdd:cd11772     7 DYEAQHPDELSFEEGDLLYISDKSDPNWWKATC-----GGKTGLIPSNYV 51
PTZ00121 PTZ00121
MAEBL; Provisional
351-612 1.25e-04

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 46.29  E-value: 1.25e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  351 MEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAAR-KELEKQRQQE-- 427
Cdd:PTZ00121 1084 KEDNRADEATEEAFGKAEEAKKTETGKAEEARKAEEAKKKAEDARKAEEARKAEDARKAEEARKAEDaKRVEIARKAEda 1163
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  428 --WEQARIAE--MNAQKEREQERVLK----QKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTS 499
Cdd:PTZ00121 1164 rkAEEARKAEdaKKAEAARKAEEVRKaeelRKAEDARKAEAARKAEEERKAEEARKAEDAKKAEAVKKAEEAKKDAEEAK 1243
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  500 MSEMSQLKARIK---EQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQliINQIKDKVENISKEIESK 576
Cdd:PTZ00121 1244 KAEEERNNEEIRkfeEARMAHFARRQAAIKAEEARKADELKKAEEKKKADEAKKAEEKKK--ADEAKKKAEEAKKADEAK 1321
                         250       260       270
                  ....*....|....*....|....*....|....*.
gi 442628730  577 KedintndvQMSELKAELSALITKCEDLYKEYDVQR 612
Cdd:PTZ00121 1322 K--------KAEEAKKKADAAKKKAEEAKKAAEAAK 1349
Rabaptin pfam03528
Rabaptin;
374-592 1.26e-04

Rabaptin;


Pssm-ID: 367545 [Multi-domain]  Cd Length: 486  Bit Score: 45.87  E-value: 1.26e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAER-KQQEELERQLQRQR--EIEMEKEEQRKRELEAKEAARKELEKQRQQEWEqariaemnAQKEREQERVLKQ 450
Cdd:pfam03528   14 EKENAEFYRlKQQLEAEFNQKRAKfkELYLAKEEDLKRQNAVLQEAQVELDALQNQLAL--------ARAEMENIKAVAT 85
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   451 KAHNTQlnvelstlnekikelsqricdtragvtnvKTVIDGMRTQ-RDTSMSEMSQLKARIKEQNAKL-LQLTQERAKWE 528
Cdd:pfam03528   86 VSENTK-----------------------------QEAIDEVKSQwQEEVASLQAIMKETVREYEVQFhRRLEQERAQWN 136
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   529 A------KSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKA 592
Cdd:pfam03528  137 QyresaeREIADLRRRLSEGQEEENLEDEMKKAQEDAEKLRSVVMPMEKEIAALKAKLTEAEDKIKELEA 206
ERM_helical pfam20492
Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related ...
375-456 1.26e-04

Ezrin/radixin/moesin, alpha-helical domain; The ERM family consists of three closely-related proteins, ezrin, radixin and moesin. Ezrin was first identified as a constituent of microvilli, radixin as a barbed, end-capping actin-modulating protein from isolated junctional fractions, and moesin as a heparin binding protein. A tumour suppressor molecule responsible for neurofibromatosis type 2 (NF2) is highly similar to ERM proteins and has been designated merlin (moesin-ezrin-radixin-like protein). ERM molecules contain 3 domains, an N-terminal globular domain, an extended alpha-helical domain and a charged C-terminal domain (pfam00769). Ezrin, radixin and merlin also contain a polyproline linker region between the helical and C-terminal domains. The N-terminal domain is highly conserved and is also found in merlin, band 4.1 proteins and members of the band 4.1 superfamily, designated the FERM domain. ERM proteins crosslink actin filaments with plasma membranes. They co-localize with CD44 at actin filament plasma membrane interaction sites, associating with CD44 via their N-terminal domains and with actin filaments via their C-terminal domains. This is the alpha-helical domain, which is involved in intramolecular masking of protein-protein interaction sites, regulating the activity of this proteins.


Pssm-ID: 466641 [Multi-domain]  Cd Length: 120  Bit Score: 42.60  E-value: 1.26e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   375 KARLEAERKQ-QEELERQLQRQREIEMEKEE-QRKRELEAKEAARKELEKQRQQEwEQARIAEMNAQKEREQERvLKQKA 452
Cdd:pfam20492   36 AEELEEERRQaEEEAERLEQKRQEAEEEKERlEESAEMEAEEKEQLEAELAEAQE-EIARLEEEVERKEEEARR-LQEEL 113

                   ....
gi 442628730   453 HNTQ 456
Cdd:pfam20492  114 EEAR 117
SH3_SLAP-like cd11848
Src homology 3 domain of Src-Like Adaptor Proteins; SLAPs are adaptor proteins with limited ...
785-834 1.27e-04

Src homology 3 domain of Src-Like Adaptor Proteins; SLAPs are adaptor proteins with limited similarity to Src family tyrosine kinases. They contain an N-terminal SH3 domain followed by an SH2 domain, and a unique C-terminal sequence. They function in regulating the signaling, ubiquitination, and trafficking of T-cell receptor (TCR) and B-cell receptor (BCR) components. Vertebrates contain two SLAPs, named SLAP (or SLA1) and SLAP2 (or SLA2). SLAP has been shown to interact with the EphA receptor, EpoR, Lck, PDGFR, Syk, CD79a, among others, while SLAP2 interacts with CSF1R. Both SLAPs interact with c-Cbl, LAT, CD247, and Zap70. SLAP modulates TCR surface expression levels as well as surface and total BCR levels. As an adaptor to c-Cbl, SLAP increases the ubiquitination, intracellular retention, and targeted degradation of the BCR complex components. SLAP2 plays a role in c-Cbl-dependent regulation of CSF1R, a tyrosine kinase important for myeloid cell growth and differentiation. The SH3 domain of SLAP forms a complex with v-Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212782  Cd Length: 55  Bit Score: 40.64  E-value: 1.27e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTgTIGSRTG---MFPSNYVQK 834
Cdd:cd11848     3 VALGDYPSGGPAELSLRLGEPLTIVSDEGDWWK-VLSEVTGresYIPSVHVAK 54
SH3_PACSIN_like cd11999
Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C ...
786-833 1.28e-04

Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212932 [Multi-domain]  Cd Length: 56  Bit Score: 40.69  E-value: 1.28e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE--W-WTGTIGSRTGMFPSNYVQ 833
Cdd:cd11999     6 AVYDYTGQEPDELSFKAGEELLKVEDEDEqgWcKGVTDGGAVGLYPANYVE 56
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
679-730 1.28e-04

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 40.69  E-value: 1.28e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQNA----EPGWLAGEINGHTGWFPESYV 730
Cdd:cd12058     2 WTALYDYEASGEDELSLRRGDVVEV-LSQDAavsgDDGWWAGKIRHRLGIFPANYV 56
PTZ00121 PTZ00121
MAEBL; Provisional
330-619 1.33e-04

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 46.29  E-value: 1.33e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKgQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRK-- 407
Cdd:PTZ00121 1203 EAARKAEEER-KAEEARKAEDAKKAEAVKKAEEAKKDAEEAKKAEEERNNEEIRKFEEARMAHFARRQAAIKAEEARKad 1281
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  408 -----RELEAKEAARKELEKQRQQEW----EQARIAEMNAQKEREQER---VLKQKAHNTQLNVELSTLNEKIKELSQRI 475
Cdd:PTZ00121 1282 elkkaEEKKKADEAKKAEEKKKADEAkkkaEEAKKADEAKKKAEEAKKkadAAKKKAEEAKKAAEAAKAEAEAAADEAEA 1361
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  476 CDTRAGVTNVKTVIDGMRTQRDTSMSE----MSQLKARIKEQNAKLLQLtqeRAKWEAKSKASGAALGGENAQQEQLNAA 551
Cdd:PTZ00121 1362 AEEKAEAAEKKKEEAKKKADAAKKKAEekkkADEAKKKAEEDKKKADEL---KKAAAAKKKADEAKKKAEEKKKADEAKK 1438
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  552 FAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSaliTKCEDLYKEYDVQRTSVLELK 619
Cdd:PTZ00121 1439 KAEEAKKADEAKKKAEEAKKAEEAKKKAEEAKKADEAKKKAEEA---KKADEAKKKAEEAKKKADEAK 1503
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
680-733 1.35e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 40.72  E-value: 1.35e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILV--PLEQNaepgWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11919     4 RAKFDFKAQTLKELPLQKGDIVYIykQIDQN----WYEGEHHGRVGIFPRSYIELL 55
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
679-730 1.42e-04

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 40.91  E-value: 1.42e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQNAE----PGWLAGEINGHTGWFPESYV 730
Cdd:cd12059     2 WTAVFDYEASAEDELTLRRGDRVEV-LSKDSAvsgdEGWWTGKINDRVGIFPSNYV 56
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
1035-1081 1.47e-04

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 40.53  E-value: 1.47e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1035 PYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNYVGP 1081
Cdd:cd11785     7 PYPPQSEAELELKEGDIVFVHKKREDGWFKGTLqrTGKTGLFPGSFVES 55
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
949-1001 1.48e-04

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 40.48  E-value: 1.48e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  949 IAPYEATSTEQ--LSLTRGQLIMIRKKtDSGWWEGELQAKGrrrqiGWFPATYVK 1001
Cdd:cd11838     3 IALYPYESNEPgdLTFNAGDVILVTKK-DGEWWTGTIGDRT-----GIFPSNYVR 51
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
786-833 1.55e-04

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 40.76  E-value: 1.55e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTI--GSRTGMFPSNYVQ 833
Cdd:cd11933     6 AMYDYRAADDDEVSFKDGDTIVNVQTIDEgWMYGTVqrTGKTGMLPANYVE 56
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
678-731 1.58e-04

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 40.59  E-value: 1.58e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVE 731
Cdd:cd11870     1 QVVALHRYEAQGPEDLGFREGDTIDVLSEVNEA--WLEGHSDGRVGIFPKCFVV 52
SH3_UBASH3B cd11936
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein B; UBASH3B, ...
1033-1081 1.60e-04

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein B; UBASH3B, also called Suppressor of T cell receptor Signaling (STS)-1 or T cell Ubiquitin LigAnd (TULA)-2 is an active phosphatase that is expressed ubiquitously. The phosphatase activity of UBASH3B is essential for its roles in the suppression of TCR signaling and the regulation of EGFR. It also interacts with Syk and functions as a negative regulator of platelet glycoprotein VI signaling. TULA proteins contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212869  Cd Length: 62  Bit Score: 40.79  E-value: 1.60e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1033 LYPYKAQNDDELSFDKDDIISVLGRDEPE----WWRGE--LNGLSGLFPSNYVGP 1081
Cdd:cd11936     7 IYPYTPQNDDELELVPGDYIFMSPMEQTStsegWIYGTslTTGCSGLLPENYITK 61
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
788-832 1.60e-04

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 40.57  E-value: 1.60e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  788 YPY--ESAEEGdLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYV 832
Cdd:cd11829     6 YAFtgEQHQQG-LSFEAGELIRVLQApDGGWWEGEKDGLRGWFPASYV 52
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
678-730 1.65e-04

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 40.39  E-value: 1.65e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11963     3 KVRALYDFEAVEDNELTFKHGEIIIVLDDSDAN--WWKGENHRGVGLFPSNFV 53
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
1032-1079 1.66e-04

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 40.55  E-value: 1.66e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11869     4 ALFDFTGNSKLELNFKAGDVIFLLSRVNKDWLEGTVRGATGIFPLSFV 51
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
375-610 1.67e-04

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 45.53  E-value: 1.67e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  375 KARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHN 454
Cdd:COG4717   152 EERLEELRELEEELEELEAELAELQEELEELLEQLSLATEEELQDLAEELEELQQRLAELEEELEEAQEELEELEEELEQ 231
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  455 TQLNVELSTLNEKIKELSQRICDTRAGVtnvkTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKAS 534
Cdd:COG4717   232 LENELEAAALEERLKEARLLLLIAAALL----ALLGLGGSLLSLILTIAGVLFLVLGLLALLFLLLAREKASLGKEAEEL 307
                         170       180       190       200       210       220       230
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  535 GAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDIntNDVQMSELKAELSALITKCEDLYKEYDV 610
Cdd:COG4717   308 QALPALEELEEEELEELLAALGLPPDLSPEELLELLDRIEELQELL--REAEELEEELQLEELEQEIAALLAEAGV 381
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
680-731 1.68e-04

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 40.55  E-value: 1.68e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVE 731
Cdd:cd11869     3 EALFDFTGNSKLELNFKAGDVIFLLSRVNKD--WLEGTVRGATGIFPLSFVK 52
Caldesmon pfam02029
Caldesmon;
328-450 1.69e-04

Caldesmon;


Pssm-ID: 460421 [Multi-domain]  Cd Length: 495  Bit Score: 45.63  E-value: 1.69e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   328 SFED-KRKENYVKGQAeldRRRKIMEDQQRKEREERERKEREEADKREKARLEAERK-----------QQEELERQLQRQ 395
Cdd:pfam02029  196 VFLDqKRGHPEVKSQN---GEEEVTKLKVTTKRRQGGLSQSQEREEEAEVFLEAEQKleelrrrrqekESEEFEKLRQKQ 272
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730   396 REIEMEKEEQRKRElEAKEAARKELEKQRQQEWEQARIaemnaqKEREQERVLKQ 450
Cdd:pfam02029  273 QEAELELEELKKKR-EERRKLLEEEEQRRKQEEAERKL------REEEEKRRMKE 320
SH3_Tks_3 cd12017
Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
782-834 1.73e-04

Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the third SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212950  Cd Length: 53  Bit Score: 40.13  E-value: 1.73e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  782 EYYIAAYPYESAEEGdLSFSAGEMVMVIKKE-GEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12017     1 EYFTIGEFQATIQDG-ISFQKGQKVEVIDKNpSGWWYVKIDGKEGWAPSSYIEK 53
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
371-617 1.74e-04

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 45.80  E-value: 1.74e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  371 DKREKAR---------LEAERKQQEELER--------------------------QLQRQREIEMEKE------------ 403
Cdd:PRK02224  227 EQREQARetrdeadevLEEHEERREELETleaeiedlretiaeterereelaeevRDLRERLEELEEErddllaeagldd 306
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  404 ------EQRKRELEA-KEAARKELEKQRQQ----------EWEQARIAEMNAQKEREQERVLKQKAHNTQlnVELSTLNE 466
Cdd:PRK02224  307 adaeavEARREELEDrDEELRDRLEECRVAaqahneeaesLREDADDLEERAEELREEAAELESELEEAR--EAVEDRRE 384
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  467 KIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEA-----KSKASGAALGGE 541
Cdd:PRK02224  385 EIEELEEEIEELRERFGDAPVDLGNAEDFLEELREERDELREREAELEATLRTARERVEEAEAlleagKCPECGQPVEGS 464
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  542 ---------NAQQEQLNAAFAhkqliinQIKDKVENISKEIESKKEdintndvqMSELKAELSALITKCEDLYKEYDVQR 612
Cdd:PRK02224  465 phvetieedRERVEELEAELE-------DLEEEVEEVEERLERAED--------LVEAEDRIERLEERREDLEELIAERR 529

                  ....*
gi 442628730  613 TSVLE 617
Cdd:PRK02224  530 ETIEE 534
SH3_BCAR1 cd12001
Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1032-1077 1.75e-04

Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, Breast Cancer Anti-estrogen Resistance 1; BCAR1, also called p130cas or CASS1, is the founding member of the CAS family of scaffolding proteins and was originally identified through its ability to associate with Crk. The name BCAR1 was designated because the human gene was identified in a screen for genes that promote resistance to tamoxifen. It is widely expressed and its deletion is lethal in mice. It plays a role in regulating cell motility, survival, proliferation, transformation, cancer progression, and bacterial pathogenesis. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212934  Cd Length: 68  Bit Score: 40.79  E-value: 1.75e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEP---EWWRGELNGLSGLFPSN 1077
Cdd:cd12001     7 ALYDNVAESPDELSFRKGDIMTVLERDTQgldGWWLCSLHGRQGIVPGN 55
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
782-834 1.77e-04

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 40.40  E-value: 1.77e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  782 EYYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12076     1 EKYTVIYPYTARDQDEINLEKGAVVEVIQKNLEgWWKIRYQGKEGWAPASYLKK 54
SH3_Nck2_3 cd11903
Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
788-832 1.79e-04

Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212836 [Multi-domain]  Cd Length: 59  Bit Score: 40.43  E-value: 1.79e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  788 YPYESAEEGDLSFSAGEMVMVIKK---EGEWWTGTIGS-RTGMFPSNYV 832
Cdd:cd11903     7 YPFSSVTEEELNFEKGETMEVIEKpenDPEWWKCKNSRgQVGLVPKNYV 55
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
683-730 1.80e-04

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 40.40  E-value: 1.80e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  683 YEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYV 730
Cdd:cd11901     8 FNYTAEREDELSLVKGTKVIV-MEKCSD-GWWRGSYNGQVGWFPSNYV 53
SH3_SLAP2 cd12011
Src homology 3 domain of Src-Like Adaptor Protein 2; SLAP2 plays a role in c-Cbl-dependent ...
785-834 1.88e-04

Src homology 3 domain of Src-Like Adaptor Protein 2; SLAP2 plays a role in c-Cbl-dependent regulation of CSF1R, a tyrosine kinase important for myeloid cell growth and differentiation. It has been shown to interact with CSF1R, c-Cbl, LAT, CD247, and Zap70. SLAPs are adaptor proteins with limited similarity to Src family tyrosine kinases. They contain an N-terminal SH3 domain followed by an SH2 domain, and a unique C-terminal sequence. They function in regulating the signaling, ubiquitination, and trafficking of T-cell receptor (TCR) and B-cell receptor (BCR) components. The SH3 domain of SLAP forms a complex with v-Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212944  Cd Length: 55  Bit Score: 40.11  E-value: 1.88e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWT--GTIGSRTGMFPSNYVQK 834
Cdd:cd12011     3 VALCNFPSGGPTELSIRMGEQLTILSEDGDWWKvsSAVTGRECYIPSNYVAK 54
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
676-731 1.90e-04

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 40.31  E-value: 1.90e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  676 FVKyqAVYEFNARNAEEITFVPGDII-LVPLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11894     1 FVK--ALYDYEGQTDDELSFPEGAIIrILNKENQDDDGFWEGEFNGRIGVFPSVLVE 55
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
783-833 1.91e-04

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 40.39  E-value: 1.91e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK--EGEWWTGtIGSR--TGMFPSNYVQ 833
Cdd:cd11763     1 KVRALYDFDSQPSGELSLRAGEVLTITRQdvGDGWLEG-RNSRgeVGLFPSSYVE 54
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
783-833 1.91e-04

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 40.31  E-value: 1.91e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE----WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11894     1 FVKALYDYEGQTDDELSFPEGAIIRILNKENQdddgFWEGEFNGRIGVFPSVLVE 55
SH3_Yes cd12007
Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src ...
952-1000 1.98e-04

Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. c-Yes kinase is the cellular homolog of the oncogenic protein (v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma viruses. It displays functional overlap with other Src subfamily members, particularly Src. It also shows some unique functions such as binding to occludins, transmembrane proteins that regulate extracellular interactions in tight junctions. Yes also associates with a number of proteins in different cell types that Src does not interact with, like JAK2 and gp130 in pre-adipocytes, and Pyk2 in treated pulmonary vein endothelial cells. Although the biological function of Yes remains unclear, it appears to have a role in regulating cell-cell interactions and vesicle trafficking in polarized cells. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212940 [Multi-domain]  Cd Length: 58  Bit Score: 40.40  E-value: 1.98e-04
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                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYV 1000
Cdd:cd12007     9 YEARTTEDLSFKKGERFQIINNTEGDWWEARSIATGKN---GYIPSNYV 54
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
370-471 2.00e-04

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 44.49  E-value: 2.00e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  370 ADKREKA-RLEAERK----QQEELERQLQRQREIEMEKEEQRKRELEakeaarKELEKQRQQEWeqariaEMNAQKEREQ 444
Cdd:cd16269   201 EAERAKAeAAEQERKlleeQQRELEQKLEDQERSYEEHLRQLKEKME------EERENLLKEQE------RALESKLKEQ 268
                          90       100
                  ....*....|....*....|....*..
gi 442628730  445 ERVLKQKAHNtqlnvELSTLNEKIKEL 471
Cdd:cd16269   269 EALLEEGFKE-----QAELLQEEIRSL 290
SH3_TXK cd11907
Src Homology 3 domain of TXK, also called Resting lymphocyte kinase (Rlk); TXK is a ...
1029-1079 2.00e-04

Src Homology 3 domain of TXK, also called Resting lymphocyte kinase (Rlk); TXK is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal cysteine-rich region. Rlk is expressed in T-cells and mast cell lines, and is a key component of T-cell receptor (TCR) signaling. It is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212840 [Multi-domain]  Cd Length: 55  Bit Score: 40.32  E-value: 2.00e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG-ELNGLSGLFPSNYV 1079
Cdd:cd11907     2 QVKALYDFLPREPSNLALKRAEEYLILEQYDPHWWKArDRYGNEGLIPSNYV 53
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
680-730 2.01e-04

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 40.40  E-value: 2.01e-04
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gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWL-AGEINGHTGWFPESYV 730
Cdd:cd11904     4 QALYPFSSSNDEELNFEKGEVMDVIEKPENDPEWWkCRKANGQVGLVPKNYV 55
SH3_ASEF2 cd11974
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also ...
1032-1079 2.03e-04

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also called Spermatogenesis-associated protein 13 (SPATA13), is a GEF that localizes with actin at the leading edge of cells and is important in cell migration and adhesion dynamics. GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF2 can activate both Rac 1 and Cdc42, but only Rac1 activation is necessary for increased cell migration and adhesion turnover. Together with APC (adenomatous polyposis coli) and Neurabin2, a scaffold protein that binds F-actin, it is involved in regulating HGF-induced cell migration. ASEF2 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212907  Cd Length: 54  Bit Score: 40.05  E-value: 2.03e-04
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                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11974     5 ALWDHVTMDDQELAFKAGDVIRVLEASNKDWWWGRNEDREAWFPASFV 52
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
786-834 2.04e-04

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 40.39  E-value: 2.04e-04
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                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE------WWTGTIGSRT--GMFPSNYVQK 834
Cdd:cd11790     7 ATHDYTAEDTDELTFEKGDVILVIPFDDPeeqdegWLMGVKESTGcrGVFPENFTER 63
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
947-1001 2.06e-04

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 40.38  E-value: 2.06e-04
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                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLI--MIRKKTDsGWWEGELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11779     4 KALYPHAAGGETQLSFEEGDVItlLGPEPRD-GWHYGENERSGRR---GWFPIAYTE 56
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
786-834 2.10e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 39.99  E-value: 2.10e-04
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gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11920     5 AVYDFKAQTSKELSFKKGDTVYILRKiDQNWYEGEHHGRVGIFPISYVEK 54
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
380-574 2.13e-04

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 44.91  E-value: 2.13e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   380 AERKQQEElERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQ--KEREQERVLKQKAhntql 457
Cdd:pfam13868   22 KERDAQIA-EKKRIKAEEKEEERRLDEMMEEERERALEEEEEKEEERKEERKRYRQELEEqiEEREQKRQEEYEE----- 95
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   458 nvelsTLNEK--IKELSQRIC--DTRAGVTNVKTVIdgmRTQRDtsMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKA 533
Cdd:pfam13868   96 -----KLQEReqMDEIVERIQeeDQAEAEEKLEKQR---QLREE--IDEFNEEQAEWKELEKEEEREEDERILEYLKEKA 165
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|.
gi 442628730   534 sgAALGGENAQQEQLNAAfahKQLIINQIKDKVENISKEIE 574
Cdd:pfam13868  166 --EREEEREAEREEIEEE---KEREIARLRAQQEKAQDEKA 201
SH3_SKAP2 cd12045
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called ...
1042-1079 2.15e-04

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called SKAP55-Related (SKAP55R) or SKAP55 homolog (SKAP-HOM or SKAP55-HOM), is an immune cell-specific adaptor protein that plays an important role in adhesion and migration of B-cells and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), YopH, SHPS1, and HPK1. SKAP2 has also been identified as a substrate for lymphoid-specific tyrosine phosphatase (Lyp), which has been implicated in a wide variety of autoimmune diseases. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. Like SKAP1, SKAP2 is expected to bind primarily to a proline-rich region of ADAP through its SH3 domain; its degradation may be regulated by ADAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212978  Cd Length: 53  Bit Score: 39.88  E-value: 2.15e-04
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gi 442628730 1042 DELSFDKDDIISVLGR--DEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd12045    14 DELSFKRGDTIYILSKeyNRFGWWVGEMKGTIGLVPKAYI 53
SH3_SH3RF2_2 cd11932
Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1032-1079 2.16e-04

Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212865  Cd Length: 57  Bit Score: 40.21  E-value: 2.16e-04
                          10        20        30        40        50
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gi 442628730 1032 ALYPY------KAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11932     4 ALYNFdlkeknREESKDCLKFQKDDIITVISRVDENWAEGKLGDQVGIFPILFV 57
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
680-730 2.33e-04

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 40.06  E-value: 2.33e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11828     3 EALWDHVTMDPEELGFKAGDVIEVLDMSDKD--WWWGSIRDEEGWFPASFV 51
CAF-1_p150 pfam11600
Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide ...
370-483 2.35e-04

Chromatin assembly factor 1 complex p150 subunit, N-terminal; CAF-1_p150 is a polypeptide subunit of CAF-1, which functions in depositing newly synthesized and acetylated histones H3/H4 into chromatin during DNA replication and repair. CAF-1_p150 includes the HP1 interaction site, the PEST, KER and ED interacting sites. CAF-1_p150 interacts directly with newly synthesized and acetylated histones through the acidic KER and ED domains. The PEST domain is associated with proteins that undergo rapid proteolysis.


Pssm-ID: 402959 [Multi-domain]  Cd Length: 164  Bit Score: 42.75  E-value: 2.35e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   370 ADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKEL-------EKQRQQEWEQARIAEMNAQKER 442
Cdd:pfam11600   10 QEEKEKQRLEKDKERLRRQLKLEAEKEEKERLKEEAKAEKERAKEEARRKKeeekelkEKERREKKEKDEKEKAEKLRLK 89
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|..
gi 442628730   443 EQERVLKQKAHNTQLNVELSTLNEK-IKELSQRICDTRAGVT 483
Cdd:pfam11600   90 EEKRKEKQEALEAKLEEKRKKEEEKrLKEEEKRIKAEKAEIT 131
SH3_RIM-BP cd11851
Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding ...
784-834 2.37e-04

Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212785  Cd Length: 62  Bit Score: 40.38  E-value: 2.37e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730  784 YIAAYPYESAE-------EGDLSFSAGEMVMV---IKKEGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11851     2 MVALYDYNPETmspnddpEEELSFHAGDVVRVygpMDEDGFYYGELEGGRKGLVPSNFVQE 62
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
946-1002 2.48e-04

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 40.02  E-value: 2.48e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSgWWEGELqaKGRRrqiGWFPATYVKV 1002
Cdd:cd11990     2 AQALCSWTAKKDNHLNFSKNDIITVLEQQEN-WWFGEV--HGGR---GWFPKSYVKL 52
DUF3584 pfam12128
Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. ...
341-549 2.60e-04

Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. Proteins in this family are typically between 943 to 1234 amino acids in length. This family contains a P-loop motif suggesting it is a nucleotide binding protein. It may be involved in replication.


Pssm-ID: 432349 [Multi-domain]  Cd Length: 1191  Bit Score: 45.21  E-value: 2.60e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQ-----QEELERQLQRQREIEMEKEEQRKRELEAKEA 415
Cdd:pfam12128  650 NARLDLRRLFDEKQSEKDKKNKALAERKDSANERLNSLEAQLKQldkkhQAWLEEQKEQKREARTEKQAYWQVVEGALDA 729
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   416 ARKELEKQRQQEWEQARiAEMNAQKErEQERVLKQKAHNTQLNVELSTlneKIKELSQRICDTRAgvtNVKTVIDGMRTQ 495
Cdd:pfam12128  730 QLALLKAAIAARRSGAK-AELKALET-WYKRDLASLGVDPDVIAKLKR---EIRTLERKIERIAV---RRQEVLRYFDWY 801
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730   496 RDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAAL----GGENAQQEQLN 549
Cdd:pfam12128  802 QETWLQRRPRLATQLSNIERAISELQQQLARLIADTKLRRAKLemerKASEKQQVRLS 859
SH3_ephexin1 cd11939
Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called ...
1029-1079 2.67e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called NGEF or ARHGEF27); Ephexin-1, also called NGEF (neuronal GEF) or ARHGEF27, activates RhoA, Tac1, and Cdc42 by exchanging bound GDP for free GTP. It is expressed mainly in the brain in a region associated with movement control. It regulates the stability of postsynaptic acetylcholine receptor (AChR) clusters and thus, plays a critical role in the maturation and neurotransmission of neuromuscular junctions. Ephexin-1 directly interacts with the ephrin receptor EphA4 and their coexpression enhances the ability of ephexin-1 to activate RhoA. It is required for normal axon growth and EphA-induced growth cone collapse. Ephexin-1 contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212872 [Multi-domain]  Cd Length: 55  Bit Score: 39.93  E-value: 2.67e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNYV 1079
Cdd:cd11939     1 QVQCVHPYVSQEPDELSLELADVLNILDKTDDGWIFGERlhDQERGWFPSSVV 53
ClpA COG0542
ATP-dependent Clp protease, ATP-binding subunit ClpA [Posttranslational modification, protein ...
375-490 2.74e-04

ATP-dependent Clp protease, ATP-binding subunit ClpA [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 440308 [Multi-domain]  Cd Length: 836  Bit Score: 45.07  E-value: 2.74e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  375 KARLEAERKQQE--ELERQLqrqREIEMEKEEQRKRELEAKEAARKELEKQRQQEweQARIAEMNAQKEREQERVLKQKA 452
Cdd:COG0542   401 RVRMEIDSKPEEldELERRL---EQLEIEKEALKKEQDEASFERLAELRDELAEL--EEELEALKARWEAEKELIEEIQE 475
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 442628730  453 HNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVID 490
Cdd:COG0542   476 LKEELEQRYGKIPELEKELAELEEELAELAPLLREEVT 513
SH3_SGSM3 cd11813
Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called ...
680-731 2.77e-04

Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called Merlin-associated protein (MAP), RUN and SH3 domain-containing protein (RUSC3), RUN and TBC1 domain-containing protein 3 (RUTBC3), Rab GTPase-activating protein 5 (RabGAP5), or Rab GAP-like protein (RabGAPLP). It is expressed ubiquitously and functions as a regulator of small G protein RAP- and RAB-mediated neuronal signaling. It is involved in modulating NGF-mediated neurite outgrowth and differentiation. It also interacts with the tumor suppressor merlin and may play a role in the merlin-associated suppression of cell growth. SGSM3 contains TBC, SH3, and RUN domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212747  Cd Length: 53  Bit Score: 39.79  E-value: 2.77e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLaGEINGHTGWFPESYVE 731
Cdd:cd11813     3 KALLDFERHDDDELGFRKNDIITI-ISQKDEHCWV-GELNGLRGWFPAKFVE 52
SH3_GRAF2 cd12065
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also ...
786-833 2.79e-04

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also called Rho GTPase activating protein 10 (ARHGAP10) or PS-GAP, is a GAP with activity towards Cdc42 and RhoA. It regulates caspase-activated p21-activated protein kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34, leading to its stabilization and decrease of cell death. It is highly expressed in skeletal muscle, and is involved in alpha-catenin recruitment at cell-cell junctions. GRAF2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212998 [Multi-domain]  Cd Length: 54  Bit Score: 39.97  E-value: 2.79e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMV--MVIKKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12065     4 AVYPCEAEHSSELSFEVGAIFedVTLSREPGWLEGTLNGKRGLIPENYVE 53
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
946-1001 2.82e-04

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 39.66  E-value: 2.82e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGElqakgRRRQIGWFPATYVK 1001
Cdd:cd11824     2 YSVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTVE-----RNGQKGLVPGTYLE 52
SH3_Noxa1_C cd12047
C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox ...
785-834 2.86e-04

C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox and is a cytosolic subunit of the nonphagocytic NADPH oxidase complex Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Noxa1 is co-expressed with Nox1 in colon, stomach, uterus, prostate, and vascular smooth muscle cells, consistent with its regulatory role. It does not interact with p40phox, unlike p67phox, making Nox1 activity independent of p40phox, unlike Nox2. Noxa1 contains TPR, PB1, and C-terminal SH3 domains, but lacks the central SH3 domain that is present in p67phox. The TPR domain binds activated GTP-bound Rac. The C-terminal SH3 domain binds the polyproline motif found at the C-terminus of Noxo1, a homolog of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212980  Cd Length: 53  Bit Score: 39.80  E-value: 2.86e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12047     3 VAQHDYSAQGPEDLEFSQGDTIDILSEvNQEWLEGHCDGRIGIFPKCFAVR 53
GumC COG3206
Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];
375-529 2.93e-04

Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442439 [Multi-domain]  Cd Length: 687  Bit Score: 45.01  E-value: 2.93e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  375 KARLEAERKQQEELERQLQ--RQREIEMEKEEQRKRELEAKEAARKELEK-QRQQEWEQARIAEMNAQKEREQERV--LK 449
Cdd:COG3206   181 EEQLPELRKELEEAEAALEefRQKNGLVDLSEEAKLLLQQLSELESQLAEaRAELAEAEARLAALRAQLGSGPDALpeLL 260
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  450 QKAHNTQLNVELSTLNEKIKELSQR--------------ICDTRAGV-TNVKTVIDGMRTQRDTSMSEMSQLKARIKEQN 514
Cdd:COG3206   261 QSPVIQQLRAQLAELEAELAELSARytpnhpdvialraqIAALRAQLqQEAQRILASLEAELEALQAREASLQAQLAQLE 340
                         170
                  ....*....|....*
gi 442628730  515 AKLLQLTQERAKWEA 529
Cdd:COG3206   341 ARLAELPELEAELRR 355
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
679-730 2.99e-04

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 39.51  E-value: 2.99e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11986     2 FVALYRFKALEKDDLDFHPGERITVIDDSNEE--WWRGKIGEKTGYFPMNFI 51
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
1032-1079 3.00e-04

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 39.61  E-value: 3.00e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWW-----RGELnglsGLFPSNYV 1079
Cdd:cd11849     4 ALYDFKSAEPNTLSFSEGETFLLLERSNAHWWlvtnhSGET----GYVPANYV 52
SH3_PEX13_eumet cd11864
Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and ...
785-833 3.02e-04

Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and is required for protein import into the peroxisomal matrix and membrane. It is an integral membrane protein that is essential for the localization of PEX14 and the import of proteins containing the peroxisome matrix targeting signals, PTS1 and PTS2. Mutations of the PEX13 gene in humans lead to a wide range of peroxisome biogenesis disorders (PBDs), the most severe of which is known as Zellweger syndrome (ZS), a severe multisystem disorder characterized by hypotonia, psychomotor retardation, and neuronal migration defects. PEX13 contains two transmembrane regions and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212798  Cd Length: 58  Bit Score: 39.92  E-value: 3.02e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-----WWTGTI-GSRTGMFPSNYVQ 833
Cdd:cd11864     3 RAEYDFVAESEDELSFRAGDKLRLAPKELQprvrgWLLATVdGQKIGLVPANYVK 57
SH3_RUSC2 cd11957
Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or ...
1029-1079 3.08e-04

Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or Interacting protein of Rab1, is expressed ubiquitously with highest amounts in the brain and testis. It interacts with the small GTPase Rab1 and the Golgi matrix protein GM130, and may function in linking GTPases to certain intracellular signaling pathways. RUSC proteins are adaptor proteins consisting of RUN, leucine zipper, and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212890  Cd Length: 52  Bit Score: 39.51  E-value: 3.08e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11957     1 EVKALCHHIATEPGQLSFNKGDILQVLSRADGDWLRCSLGPDSGLVPIAYV 51
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
678-730 3.15e-04

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 39.61  E-value: 3.15e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPlEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11992     1 EYIALYPYSSSEPGDLTFNEGEEILVT-QKDGE--WWTGSIEDRTGIFPSNYV 50
Casc1_N pfam15927
Cancer susceptibility candidate 1 N-terminus; This presumed domain is functionally ...
370-430 3.17e-04

Cancer susceptibility candidate 1 N-terminus; This presumed domain is functionally uncharacterized. This domain family is found in eukaryotes, and is approximately 200 amino acids in length. The family is found in association with pfam12366. There are two completely conserved residues (N and W) that may be functionally important.


Pssm-ID: 464947 [Multi-domain]  Cd Length: 201  Bit Score: 43.12  E-value: 3.17e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 442628730   370 ADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARK-ELEKQRQQEWEQ 430
Cdd:pfam15927   13 AEEEEAERLEEERREEEEEERLAAEQDRRAEELEELKHLLEERKEALEKlRAEAREEAEWER 74
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
680-732 3.29e-04

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 39.59  E-value: 3.29e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEqnAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd12055     3 QVAFSYLPQNEDELELKVGDIIEVVGE--VEEGWWEGVLNGKTGMFPSNFIKE 53
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
678-733 3.37e-04

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 39.52  E-value: 3.37e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVEKL 733
Cdd:cd11921     2 AARLKFDFQAQSPKELTLQKGDIVYIHKEVDKN--WLEGEHHGRVGIFPANYVEVL 55
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
678-732 3.42e-04

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 39.36  E-value: 3.42e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYVEK 732
Cdd:cd12016     2 KYITTQAYKAENEDEIGFETGVVVEV-IQKNLD-GWWKIRYQGKEGWAPATYLKK 54
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
681-730 3.54e-04

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 39.42  E-value: 3.54e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAE----PGWLAGEINGHTGWFPESYV 730
Cdd:cd11876     4 ALFDYDARGEDELTLRRGQPVEV-LSKDAAvsgdEGWWTGKIGDKVGIFPSNYV 56
SH3_GRAP2_N cd11947
N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
680-731 3.69e-04

N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also have roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212880 [Multi-domain]  Cd Length: 52  Bit Score: 39.39  E-value: 3.69e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAepgWLAGEINGHTGWFPESYVE 731
Cdd:cd11947     3 RGKFDFTASGEDELSFKKGDVLKILSSDDI---WFKAELNGEEGYVPKNFVD 51
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
786-831 3.70e-04

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 39.39  E-value: 3.70e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNY 831
Cdd:cd11818     4 ALYDFTGENEDELSFKAGDIITELESiDEEWMSGELRGKSGIFPKNF 50
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
784-834 3.91e-04

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 39.21  E-value: 3.91e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGsRT---GMFPSNYVQK 834
Cdd:cd11780     2 YRALYSYTPQNEDELELREGDIVYVMEKCDDgWFVGTSE-RTglfGTFPGNYVAR 55
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
784-833 3.95e-04

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 39.60  E-value: 3.95e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTI--GSRTGMFPSNYVQ 833
Cdd:cd11935     3 YRAMYDYSAQDEDEVSFRDGDYIVNVQPIDEgWMYGTVqrTGRTGMLPANYIE 55
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
679-732 3.99e-04

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 39.21  E-value: 3.99e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQnAEPGWLAG--EINGHTGWFPESYVEK 732
Cdd:cd11780     2 YRALYSYTPQNEDELELREGDIVYV-MEK-CDDGWFVGtsERTGLFGTFPGNYVAR 55
SH3_Sla1p_3 cd11775
Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1028-1079 4.03e-04

Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin while retaining the ability to bind proline-rich ligands; monoubiquitination of target proteins signals internalization and sorting through the endocytic pathway. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212709 [Multi-domain]  Cd Length: 57  Bit Score: 39.22  E-value: 4.03e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1028 DKVIALYPYKAQNDDELSFDKDDIISVLGRDEP-EWWRGEL--NGLSGLFPSNYV 1079
Cdd:cd11775     1 KRGKVLYDFDAQSDDELTVKEGDVVYILDDKKSkDWWMVENvsTGKEGVVPASYI 55
SH3_Nck2_3 cd11903
Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
945-1003 4.10e-04

Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212836 [Multi-domain]  Cd Length: 59  Bit Score: 39.66  E-value: 4.10e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730  945 IAQVIAPYEATSTEQLSLTRGQLIMIRKK--TDSGWWegelQAKGRRRQIGWFPATYVKVL 1003
Cdd:cd11903     2 VVQTLYPFSSVTEEELNFEKGETMEVIEKpeNDPEWW----KCKNSRGQVGLVPKNYVVVL 58
CENP-F_leu_zip pfam10473
Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, ...
379-514 4.20e-04

Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, microtubule-binding protein consisting of two 1,600-amino acid-long coils, is essential for the full functioning of the mitotic checkpoint pathway. There are several leucine-rich repeats along the sequence of LEK1 that are considered to be zippers, though they do not appear to be binding DNA directly in this instance.


Pssm-ID: 463102 [Multi-domain]  Cd Length: 140  Bit Score: 41.51  E-value: 4.20e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   379 EAERKQQEELERQLQRQREIEMEKEEQRKRELEAkEAARKELEKQRQQEWEqarIAEMNAQKEREQERVLKQKAHntqLN 458
Cdd:pfam10473   14 ESERKADSLKDKVENLERELEMSEENQELAILEA-ENSKAEVETLKAEIEE---MAQNLRDLELDLVTLRSEKEN---LT 86
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730   459 VELSTLNEKIKELSQRICDTRAGVTNVKtviDGMRTQRDTSMSEMSQLKARIKEQN 514
Cdd:pfam10473   87 KELQKKQERVSELESLNSSLENLLEEKE---QEKVQMKEESKTAVEMLQTQLKELN 139
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
1031-1079 4.21e-04

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 39.18  E-value: 4.21e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS--GLFPSNYV 1079
Cdd:cd11924     4 VAQYTFKGDLEVELSFRKGEHICLIRKVNENWYEGRITGTGrqGIFPASYV 54
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
378-625 4.25e-04

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 44.40  E-value: 4.25e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   378 LEAERKQQEELERQLQRQREiEMEKEEQRKRE-LEAKEAARKELekQRQQEWEQARIAEMnaqkereQERVLKQKAHNTQ 456
Cdd:pfam01576   80 LESRLEEEEERSQQLQNEKK-KMQQHIQDLEEqLDEEEAARQKL--QLEKVTTEAKIKKL-------EEDILLLEDQNSK 149
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   457 LNVELSTLNEKIKELSQRICDTRAGVTN----------VKTVIDGMRTQRDTSMSEMSQLKAR-------IKEQNAKL-L 518
Cdd:pfam01576  150 LSKERKLLEERISEFTSNLAEEEEKAKSlsklknkheaMISDLEERLKKEEKGRQELEKAKRKlegestdLQEQIAELqA 229
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   519 QLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVEniskEIESKKEDINTNDVQMSELKAELSALI 598
Cdd:pfam01576  230 QIAELRAQLAKKEEELQAALARLEEETAQKNNALKKIRELEAQISELQE----DLESERAARNKAEKQRRDLGEELEALK 305
                          250       260
                   ....*....|....*....|....*..
gi 442628730   599 TKCEDLYKEYDVQRtsvlELKYNRKNE 625
Cdd:pfam01576  306 TELEDTLDTTAAQQ----ELRSKREQE 328
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
959-1002 4.38e-04

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 39.18  E-value: 4.38e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....
gi 442628730  959 QLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYVKV 1002
Cdd:cd11924    16 ELSFRKGEHICLIRKVNENWYEGRITGTGRQ---GIFPASYVQV 56
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
393-630 4.45e-04

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 44.24  E-value: 4.45e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   393 QRQREIEMEKE-EQRKRELEAKEAARKELEKQRQqeweqariaemnaqkereqERVLKQKAHNTQLNV---ELSTLNEKI 468
Cdd:TIGR04523   31 QDTEEKQLEKKlKTIKNELKNKEKELKNLDKNLN-------------------KDEEKINNSNNKIKIleqQIKDLNDKL 91
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   469 KELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQL 548
Cdd:TIGR04523   92 KKNKDKINKLNSDLSKINSEIKNDKEQKNKLEVELNKLEKQKKENKKNIDKFLTEIKKKEKELEKLNNKYNDLKKQKEEL 171
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   549 NaafAHKQLIINQIKDKVENISK-------------EIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYdVQRTSV 615
Cdd:TIGR04523  172 E---NELNLLEKEKLNIQKNIDKiknkllklelllsNLKKKIQKNKSLESQISELKKQNNQLKDNIEKKQQEI-NEKTTE 247
                          250
                   ....*....|....*
gi 442628730   616 LELKYNRKNETSVSS 630
Cdd:TIGR04523  248 ISNTQTQLNQLKDEQ 262
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
784-832 4.72e-04

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 38.99  E-value: 4.72e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWW---TGTIGSRTGMFPSNYV 832
Cdd:cd11784     2 CVALHSYSAHRPEELELQKGEGVRVLGKFQEGWlrgLSLVTGRVGIFPSNYV 53
SH3_RasGAP cd11788
Src Homology 3 domain of Ras GTPase-Activating Protein 1; RasGAP, also called Ras p21 protein ...
1029-1081 4.90e-04

Src Homology 3 domain of Ras GTPase-Activating Protein 1; RasGAP, also called Ras p21 protein activator, RASA1, or p120RasGAP, is part of the GAP1 family of GTPase-activating proteins. It is a 120kD cytosolic protein containing an SH3 domain flanked by two SH2 domains at the N-terminal end, a pleckstrin homology (PH) domain, a calcium dependent phospholipid binding domain (CaLB/C2), and a C-terminal catalytic GAP domain. It stimulates the GTPase activity of normal RAS p21. It acts as a positive effector of Ras in tumor cells. It also functions as a regulator downstream of tyrosine receptors such as those of PDGF, EGF, ephrin, and insulin, among others. The SH3 domain of RasGAP is unable to bind proline-rich sequences but have been shown to interact with protein partners such as the G3BP protein, Aurora kinases, and the Calpain small subunit 1. The RasGAP SH3 domain is necessary for the downstream signaling of Ras and it also influences Rho-mediated cytoskeletal reorganization. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212722  Cd Length: 59  Bit Score: 39.28  E-value: 4.90e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730 1029 KVIALYPY-KAQNDDELSFDKDDIISVLGRDEPEW-W-RGELNGLSGLFPSNYVGP 1081
Cdd:cd11788     3 RVRAILPYnKVPDTDELSFQKGDIFVVHNELEDGWlWvTSLRTGESGLVFRDLVEE 58
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
679-730 4.98e-04

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 38.91  E-value: 4.98e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYV 730
Cdd:cd11806     2 YVAIADFVATDDSQLSFESGDKLLVLRKPSVD--WWWAEHNGCCGYIPASHL 51
MRP-S26 pfam14943
Mitochondrial ribosome subunit S26; This family of proteins corresponds to mitochondrial ...
371-446 4.99e-04

Mitochondrial ribosome subunit S26; This family of proteins corresponds to mitochondrial ribosomal subunit S26 in eukaryotes


Pssm-ID: 464391 [Multi-domain]  Cd Length: 168  Bit Score: 41.84  E-value: 4.99e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAERKQQEELERQL------QRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEwEQARIAEMNAQKEREQ 444
Cdd:pfam14943   54 KYEEELGSESEEEAEEEEEHRElmawneEWNAEIAKLREERLAKEAEEREEEILERIEEKEEK-EEEKKERAEEEVRQEK 132

                   ..
gi 442628730   445 ER 446
Cdd:pfam14943  133 EE 134
SH3_ASAP1 cd11965
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
678-733 5.05e-04

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 1; ASAP1 is also called DDEF1 (Development and Differentiation Enhancing Factor 1), AMAP1, centaurin beta-4, or PAG2. an Arf GTPase activating protein (GAP) with activity towards Arf1 and Arf5 but not Arf6. However, it has been shown to bind GTP-Arf6 stably without GAP activity. It has been implicated in cell growth, migration, and survival, as well as in tumor invasion and malignancy. It binds paxillin and cortactin, two components of invadopodia which are essential for tumor invasiveness. It also binds focal adhesion kinase (FAK) and the SH2/SH3 adaptor CrkL. ASAP1 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212898 [Multi-domain]  Cd Length: 57  Bit Score: 39.22  E-value: 5.05e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEING---HTGWFPESYVEKL 733
Cdd:cd11965     1 RVKTIYDCQADNDDELTFVEGEVIIVTGEEDQE--WWIGHIEGqpeRKGVFPVSFVHIL 57
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
1032-1079 5.11e-04

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 38.91  E-value: 5.11e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS--GLFPSNYV 1079
Cdd:cd11858     4 ALYDFAGSVANELSLKKDDIVYIVQKEDNGWWLAKKLDESkeGWVPAAYL 53
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
952-1001 5.12e-04

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 39.15  E-value: 5.12e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKK---TDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd11894     8 YEGQTDDELSFPEGAIIRILNKenqDDDGFWEGEFNGR-----IGVFPSVLVE 55
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
952-1001 5.25e-04

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 38.99  E-value: 5.25e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakgrrRQIGWFPATYVK 1001
Cdd:cd11820     9 FEAAEDNELTFKAGEIITVLDDSDPNWWKGSNH-----RGEGLFPANFVT 53
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
679-732 5.27e-04

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 38.89  E-value: 5.27e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILV--PLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11800     2 YYALYTFEARSPGELSVTEGQVVTVleKHDLKGNPEWWLVEDRGKQGYVPSNYLAK 57
SH3_ASEF cd11973
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ...
1017-1079 5.30e-04

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ARHGEF4, exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli). GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF can activate Rac1 or Cdc42. Truncated ASEF, which is found in colorectal cancers, is constitutively active and has been shown to promote angiogenesis and cancer cell migration. ASEF contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212906 [Multi-domain]  Cd Length: 73  Bit Score: 39.62  E-value: 5.30e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730 1017 GSRIEMTEQILDKVI----ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11973     3 GEQLAINELISDGSVvcaeALWDHVTMDDQELGFKAGDVIEVMDATNKEWWWGRVLDSEGWFPASFV 69
SH3_ASEF2 cd11974
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also ...
783-833 5.43e-04

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also called Spermatogenesis-associated protein 13 (SPATA13), is a GEF that localizes with actin at the leading edge of cells and is important in cell migration and adhesion dynamics. GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF2 can activate both Rac 1 and Cdc42, but only Rac1 activation is necessary for increased cell migration and adhesion turnover. Together with APC (adenomatous polyposis coli) and Neurabin2, a scaffold protein that binds F-actin, it is involved in regulating HGF-induced cell migration. ASEF2 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212907  Cd Length: 54  Bit Score: 38.89  E-value: 5.43e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIK-KEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11974     2 YAEALWDHVTMDDQELAFKAGDVIRVLEaSNKDWWWGRNEDREAWFPASFVR 53
PTZ00121 PTZ00121
MAEBL; Provisional
330-625 5.44e-04

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 44.36  E-value: 5.44e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAE-----LDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQ--RQREIEMEK 402
Cdd:PTZ00121 1340 EAKKAAEAAKAEAEaaadeAEAAEEKAEAAEKKKEEAKKKADAAKKKAEEKKKADEAKKKAEEDKKKADelKKAAAAKKK 1419
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  403 EEQRKRELE----AKEAARKELEKQRQQEW----EQARIAEmNAQKEREQERV---LKQKAHNTQLNVELstlnEKIKEL 471
Cdd:PTZ00121 1420 ADEAKKKAEekkkADEAKKKAEEAKKADEAkkkaEEAKKAE-EAKKKAEEAKKadeAKKKAEEAKKADEA----KKKAEE 1494
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  472 SQRICDTRAGVTNVKTVIDGMRTQRDTSMSEmsQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAA 551
Cdd:PTZ00121 1495 AKKKADEAKKAAEAKKKADEAKKAEEAKKAD--EAKKAEEAKKADEAKKAEEKKKADELKKAEELKKAEEKKKAEEAKKA 1572
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  552 FAHKQLIIN--QIKDKVENiSKEIESKKEDINTNDVQMSELKAELSALItKCEDLYKEYDVqRTSVLELKYNRKNE 625
Cdd:PTZ00121 1573 EEDKNMALRkaEEAKKAEE-ARIEEVMKLYEEEKKMKAEEAKKAEEAKI-KAEELKKAEEE-KKKVEQLKKKEAEE 1645
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
680-731 5.52e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 39.01  E-value: 5.52e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGE--INGHTGWFPESYVE 731
Cdd:cd11940     3 QCIRSYKAQENDELTLEKADIIMV--RQQSSDGWLEGVrlSDGERGWFPQSHVE 54
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
679-731 5.52e-04

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 38.91  E-value: 5.52e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEINGHT--GWFPESYVE 731
Cdd:cd11858     2 YKALYDFAGSVANELSLKKDDIVYI--VQKEDNGWWLAKKLDESkeGWVPAAYLE 54
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
784-834 5.60e-04

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 38.91  E-value: 5.60e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11806     2 YVAIADFVATDDSQLSFESGDKLLVLRKPSvDWWWAEHNGCCGYIPASHLHQ 53
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
948-1002 5.69e-04

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 39.25  E-value: 5.69e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  948 VIA--PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRRQIGWFPATYVKV 1002
Cdd:cd11887     4 VKAlyPYESDHEDDLNFDVGQLITVTEEEDADWYFGEYVDSNGNTKEGIFPKNFVEV 60
SH3_Eps8 cd11764
Src Homology 3 domain of Epidermal growth factor receptor kinase substrate 8 and similar ...
1030-1082 5.70e-04

Src Homology 3 domain of Epidermal growth factor receptor kinase substrate 8 and similar proteins; This group is composed of Eps8 and Eps8-like proteins including Eps8-like 1-3, among others. These proteins contain N-terminal Phosphotyrosine-binding (PTB), central SH3, and C-terminal effector domains. Eps8 binds either Abi1 (also called E3b1) or Rab5 GTPase activating protein RN-tre through its SH3 domain. With Abi1 and Sos1, it becomes part of a trimeric complex that is required to activate Rac. Together with RN-tre, it inhibits the internalization of EGFR. The SH3 domains of Eps8 and similar proteins recognize peptides containing a PxxDY motif, instead of the classical PxxP motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212698 [Multi-domain]  Cd Length: 54  Bit Score: 38.78  E-value: 5.70e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLgRDEPEWW--RGElNGLSGLFPSNYVGPF 1082
Cdd:cd11764     2 VRVLYDFTARNSKELSVLKGEYLEVL-DDSRQWWkvRNS-RGQVGYVPHNILEPY 54
CCCAP pfam15964
Centrosomal colon cancer autoantigen protein family; CCCAP is a family of proteins found in ...
374-537 5.78e-04

Centrosomal colon cancer autoantigen protein family; CCCAP is a family of proteins found in eukaryotes. CCCAP is also known as SDCCAG8, serologically defined colon cancer antigen 8. It is associated with the centrosome.


Pssm-ID: 435040 [Multi-domain]  Cd Length: 703  Bit Score: 44.13  E-value: 5.78e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERK--QQEELERQLQRQRE-IEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMN-AQKEREQERVLK 449
Cdd:pfam15964  345 EEANFEKTKAliQCEQLKSELERQKErLEKELASQQEKRAQEKEALRKEMKKEREELGATMLALSQNvAQLEAQVEKVTR 424
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   450 QKahntqlNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKAR------IKEQN-AKL-LQLT 521
Cdd:pfam15964  425 EK------NSLVSQLEEAQKQLASQEMDVTKVCGEMRYQLNQTKMKKDEAEKEHREYRTKtgrqleIKDQEiEKLgLELS 498
                          170
                   ....*....|....*.
gi 442628730   522 QERAKWEAKSKASGAA 537
Cdd:pfam15964  499 ESKQRLEQAQQDAARA 514
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
681-730 5.84e-04

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 38.92  E-value: 5.84e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  681 AVYEFNARNAEEITFVPGDIILvpLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11809     4 AQFDYTGRSERELSFKKGDSLT--LYRQVSDDWWRGQLNGQDGLVPHKYI 51
SH3_SH3RF_2 cd11787
Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
785-831 5.95e-04

Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the second SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212721 [Multi-domain]  Cd Length: 53  Bit Score: 38.85  E-value: 5.95e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  785 IAAYPYESAEEGD---LSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNY 831
Cdd:cd11787     3 KALYDFEMKDEDEkdcLTFKKGDVITVIRRVDEnWAEGRLGDKIGIFPISF 53
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
679-731 5.96e-04

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 38.84  E-value: 5.96e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11849     2 YRALYDFKSAEPNTLSFSEGETFLL-LERSNAHWWLVTNHSGETGYVPANYVK 53
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
680-731 6.07e-04

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 38.65  E-value: 6.07e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQnAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd11950     3 RALYDFEALEDDELGFNSGDVIEV-LDS-SNPSWWKGRLHGKLGLFPANYVA 52
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
489-626 6.13e-04

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 43.90  E-value: 6.13e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   489 IDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQErakweakskasgaaLGGENAQQEQLNAAFAHKQLIINQIKDKVEN 568
Cdd:TIGR02169  683 LEGLKRELSSLQSELRRIENRLDELSQELSDASRK--------------IGEIEKEIEQLEQEEEKLKERLEELEEDLSS 748
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730   569 ISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKNET 626
Cdd:TIGR02169  749 LEQEIENVKSELKELEARIEELEEDLHKLEEALNDLEARLSHSRIPEIQAELSKLEEE 806
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
784-833 6.28e-04

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 38.91  E-value: 6.28e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKE-GEWWTGTI--GSRTGMFPSNYVQ 833
Cdd:cd11858     2 YKALYDFAGSVANELSLKKDDIVYIVQKEdNGWWLAKKldESKEGWVPAAYLE 54
Taxilin pfam09728
Myosin-like coiled-coil protein; Taxilin contains an extraordinarily long coiled-coil domain ...
372-512 6.36e-04

Myosin-like coiled-coil protein; Taxilin contains an extraordinarily long coiled-coil domain in its C-terminal half and is ubiquitously expressed. It is a novel binding partner of several syntaxin family members and is possibly involved in Ca2+-dependent exocytosis in neuroendocrine cells. Gamma-taxilin, described as leucine zipper protein Factor Inhibiting ATF4-mediated Transcription (FIAT), localizes to the nucleus in osteoblasts and dimerizes with ATF4 to form inactive dimers, thus inhibiting ATF4-mediated transcription.


Pssm-ID: 462861 [Multi-domain]  Cd Length: 302  Bit Score: 43.02  E-value: 6.36e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQ-------EELERQLQRQREIEMEKEEQRKRELEAKeaaRKELEKQRQQeweqaRIAEMNAQKEREQ 444
Cdd:pfam09728   52 QKEKDQLQSELSKAilaksklEKLCRELQKQNKKLKEESKKLAKEEEEK---RKELSEKFQS-----TLKDIQDKMEEKS 123
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   445 ERVLKQKAHNTQLNVELSTLNE-------------KIKELSQRICDTRAgvtnVKTVIDGMRTQRDTSMSEMSQLKARIK 511
Cdd:pfam09728  124 EKNNKLREENEELREKLKSLIEqyelrelhfekllKTKELEVQLAEAKL----QQATEEEEKKAQEKEVAKARELKAQVQ 199

                   .
gi 442628730   512 E 512
Cdd:pfam09728  200 T 200
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
680-732 6.45e-04

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 38.72  E-value: 6.45e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  680 QAVYEFN--ARNAEEITFVPGDIILVPLEQNAepGWLAGEINGHTGWFPESYVEK 732
Cdd:cd12052     1 EAIVEFDykAQHEDELTITVGDIITKIKKDDG--GWWEGEIKGRRGLFPDNFVRE 53
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
1036-1079 6.52e-04

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 38.75  E-value: 6.52e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....
gi 442628730 1036 YKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11921     9 FQAQSPKELTLQKGDIVYIHKEVDKNWLEGEHHGRVGIFPANYV 52
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
785-833 6.80e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 38.47  E-value: 6.80e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11781     3 RALYPFKAQSAKELSLKKGDIIYIRRQiDKNWYEGEHNGRVGIFPASYVE 52
SH3_FCHSD1_2 cd11895
Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain ...
786-834 7.10e-04

Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212828  Cd Length: 58  Bit Score: 38.79  E-value: 7.10e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-----WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11895     4 ALYSYTGQSPEELSFPEGALIRLLPRAQDgvddgFWRGEFGGRVGVFPSLLVEE 57
CFAP91 pfam14738
Cilia- and flagella-associated protein 91; This entry represents a domain found in the CFAP91 ...
341-442 7.17e-04

Cilia- and flagella-associated protein 91; This entry represents a domain found in the CFAP91 protein. CFAP91 (also known as AMY-1-associating protein expressed in testis 1 or AAT-1) is a component of a spoke-associated complex, regulates flagellar dynein activity by mediating regulatory signals between the radial spokes and dynein arms. It binds to AMY1 and may play a role in spermatogenesis.


Pssm-ID: 464290 [Multi-domain]  Cd Length: 153  Bit Score: 41.40  E-value: 7.17e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQqrkereererkereeadkrekarleaERKQQEELERQLQRQREIEME--KEEQRKRELEAKEAARK 418
Cdd:pfam14738   70 AASLEKRRKIMEEQ--------------------------EWKEWAFREEEIQELQELRLEllKKALKKREKEMEEANEQ 123
                           90       100
                   ....*....|....*....|....*.
gi 442628730   419 ELE--KQRQQEWEQARIAEMNAQKER 442
Cdd:pfam14738  124 RLEriKQRKQKEKERKLAKIEIEYIR 149
mukB PRK04863
chromosome partition protein MukB;
376-474 7.22e-04

chromosome partition protein MukB;


Pssm-ID: 235316 [Multi-domain]  Cd Length: 1486  Bit Score: 43.79  E-value: 7.22e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  376 ARLEAERKQQEELERQLQRQREIEMEKEEQRKReLEAKEAARKELEkQRQQEWEqARIAEMNAQKEREQERvlkqkahNT 455
Cdd:PRK04863  513 EQLQQLRMRLSELEQRLRQQQRAERLLAEFCKR-LGKNLDDEDELE-QLQEELE-ARLESLSESVSEARER-------RM 582
                          90
                  ....*....|....*....
gi 442628730  456 QLNVELSTLNEKIKELSQR 474
Cdd:PRK04863  583 ALRQQLEQLQARIQRLAAR 601
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
785-833 7.43e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 38.85  E-value: 7.43e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE--WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11946     4 IAKYDFKATADDELSFKRGDILKVLNEECDqnWYKAELNGKDGFIPKNYIE 54
SH3_Amphiphysin_I cd12140
Src Homology 3 domain of Amphiphysin I; Amphiphysins function primarily in endocytosis and ...
678-733 7.62e-04

Src Homology 3 domain of Amphiphysin I; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213016  Cd Length: 72  Bit Score: 39.11  E-value: 7.62e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILV---PLEQNAEPGWLAG----------EINGHTGWFPESYVEKL 733
Cdd:cd12140     4 KVETLHDFEAANSDELELKRGDIVLVvpsETAADQDAGWLTGvkesdwlqyrDASAYKGLFPENFTRRL 72
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
372-624 7.63e-04

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 43.51  E-value: 7.63e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQqeweqaRIAEMNAQKEREQERVLKQK 451
Cdd:PRK03918  479 RKELRELEKVLKKESELIKLKELAEQLKELEEKLKKYNLEELEKKAEEYEKLKE------KLIKLKGEIKSLKKELEKLE 552
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  452 AhntqLNVELSTLNEKIKELSQRIcdtragvTNVKTVIdgmrtqRDTSMSEMSQLKARIKEQNA---KLLQLTQERAKWE 528
Cdd:PRK03918  553 E----LKKKLAELEKKLDELEEEL-------AELLKEL------EELGFESVEELEERLKELEPfynEYLELKDAEKELE 615
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  529 AKSKAsgaalggENAQQEQLNAAFAHkqliINQIKDKVENISKEIESKKEDINTNDVQ-----MSELKAELSALITKCED 603
Cdd:PRK03918  616 REEKE-------LKKLEEELDKAFEE----LAETEKRLEELRKELEELEKKYSEEEYEelreeYLELSRELAGLRAELEE 684
                         250       260
                  ....*....|....*....|.
gi 442628730  604 LYKEYDVQRTSVLELKYNRKN 624
Cdd:PRK03918  685 LEKRREEIKKTLEKLKEELEE 705
YqiK COG2268
Uncharacterized membrane protein YqiK, contains Band7/PHB/SPFH domain [Function unknown];
372-446 7.87e-04

Uncharacterized membrane protein YqiK, contains Band7/PHB/SPFH domain [Function unknown];


Pssm-ID: 441869 [Multi-domain]  Cd Length: 439  Bit Score: 43.32  E-value: 7.87e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRE-----------LEAKEAARKELEKQRQ--QEWEQARIAEMNA 438
Cdd:COG2268   220 NREAEEAELEQEREIETARIAEAEAELAKKKAEERREAetaraeaeaayEIAEANAEREVQRQLEiaEREREIELQEKEA 299

                  ....*...
gi 442628730  439 QKEREQER 446
Cdd:COG2268   300 EREEAELE 307
PRK11459 PRK11459
multidrug resistance outer membrane protein MdtQ; Provisional
496-597 8.18e-04

multidrug resistance outer membrane protein MdtQ; Provisional


Pssm-ID: 183143 [Multi-domain]  Cd Length: 478  Bit Score: 43.40  E-value: 8.18e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  496 RDTSMSEMSQLKARI--KEQNAKLLQLTQERAKWEAKSKAS-GAALggENAQQEQLNAAFAHKQLIINQIKDKVENISKE 572
Cdd:PRK11459  160 RAEVTARIGTVKARAaeREQTRQLLAGSVARLYWEWQTQAAlNTVL--QQIEKEQNNIIATDRQLYQNGITSSVEGVETD 237
                          90       100
                  ....*....|....*....|....*..
gi 442628730  573 IESKKEDINTNDV--QMSELKAELSAL 597
Cdd:PRK11459  238 INASKTRQQLNDVagKMKIIEARLSAL 264
SH3_Tks5_3 cd12079
Third Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
781-834 8.31e-04

Third Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the third SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213012  Cd Length: 54  Bit Score: 38.49  E-value: 8.31e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  781 VEYYIAAyPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12079     1 VEYYTIA-EFQSCISDGISFRGGQKAEVIEKnSGGWWYVQIGEKEGWAPSSYIDK 54
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
952-1003 8.45e-04

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 38.27  E-value: 8.45e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGelQAKGRRrqiGWFPATYVKVL 1003
Cdd:cd12073     9 YQGEGDDEISFDPQETITDIEMVDEGWWKG--TCHGHR---GLFPANYVELL 55
SH3_MPP5 cd12036
Src Homology 3 domain of Membrane Protein, Palmitoylated 5 (or MAGUK p55 subfamily member 5); ...
1030-1076 8.76e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated 5 (or MAGUK p55 subfamily member 5); MPP5, also called PALS1 (Protein associated with Lin7) or Nagie oko protein in zebrafish or Stardust in Drosophila, is a scaffolding protein which associates with Crumbs homolog 1 (CRB1), CRB2, or CRB3 through its PDZ domain and with PALS1-associated tight junction protein (PATJ) or multi-PDZ domain protein 1 (MUPP1) through its L27 domain. The resulting tri-protein complexes are core proteins of the Crumb complex, which localizes at tight junctions or subapical regions, and is involved in the maintenance of apical-basal polarity in epithelial cells and the morphogenesis and function of photoreceptor cells. MPP5 is critical for the proper stratification of the retina and is also expressed in T lymphocytes where it is important for TCR-mediated activation of NFkB. Drosophila Stardust exists in several isoforms, some of which show opposing functions in photoreceptor cells, which suggests that the relative ratio of different Crumbs complexes regulates photoreceptor homeostasis. MPP5 contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212969  Cd Length: 63  Bit Score: 38.55  E-value: 8.76e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQnDDE--------LSFDKDDIISVLGRDEPEWWRGELNG------LSGLFPS 1076
Cdd:cd12036     2 VRAHFDYDPE-DDPyipcrelgLSFQKGDILHVISQEDPNWWQAYREGeednqsLAGLIPS 61
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
947-1003 8.83e-04

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 38.41  E-value: 8.83e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGrrrqiGWFPATYVKVL 1003
Cdd:cd12054     4 KVLFEYVPQNEDELELKVGDIIDINEEVEEGWWSGTLNGKS-----GLFPSNFVKEL 55
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
386-537 8.95e-04

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 42.87  E-value: 8.95e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  386 EELERQlQRQREIEMEKEEQRKR-------ELEAKEAAR----KELEKQRQQEWEQARIAEMNAQKEREQErvlKQKAHN 454
Cdd:PRK09510   62 EQYNRQ-QQQQKSAKRAEEQRKKkeqqqaeELQQKQAAEqerlKQLEKERLAAQEQKKQAEEAAKQAALKQ---KQAEEA 137
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  455 TQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIK---EQNAKLLQLTQERAKWEAKS 531
Cdd:PRK09510  138 AAKAAAAAKAKAEAEAKRAAAAAKKAAAEAKKKAEAEAAKKAAAEAKKKAEAEAAAKaaaEAKKKAEAEAKKKAAAEAKK 217

                  ....*.
gi 442628730  532 KASGAA 537
Cdd:PRK09510  218 KAAAEA 223
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
675-730 9.23e-04

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 38.45  E-value: 9.23e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  675 GFVKYQAVyefnARNAEEITFVPGDIILVpLEQNAEpGWLAGEINGHTGWFPESYV 730
Cdd:cd11902     3 AFVKFAYV----AEREDELSLVKGSRVTV-MEKCSD-GWWRGSYNGQIGWFPSNYV 52
SH3_ASPP1 cd11954
Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates ...
786-830 9.89e-04

Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). In addition, it functions in the cytoplasm to regulate the nuclear localization of the transcriptional cofactors YAP and TAZ by inihibiting their phosphorylation; YAP and TAZ are important regulators of cell expansion, differentiation, migration, and invasion. ASPP1 is downregulated in breast tumors expressing wild-type p53. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP1 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212887 [Multi-domain]  Cd Length: 57  Bit Score: 38.46  E-value: 9.89e-04
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKK----EGEWWTGTIGSRTGMFPSN 830
Cdd:cd11954     5 ALWDYEAQNADELSFQEGDAITILRRkddsETEWWWARLNDKEGYVPKN 53
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
680-733 1.03e-03

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212926  Cd Length: 65  Bit Score: 38.56  E-value: 1.03e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVplEQNAEPGWLAGEING-----HTGWFPESYVEKL 733
Cdd:cd11993     7 QVIASYTATGPEQLTLAPGQLILI--RKKNPGGWWEGELQArgkkrQIGWFPANYVKLL 63
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
946-1000 1.04e-03

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 38.10  E-value: 1.04e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRRrqiGWFPATYV 1000
Cdd:cd11796     2 ARVLQDLSAQLDEELDLREGDVVTITGILDKGWFRGELN--GRR---GIFPEGFV 51
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
372-623 1.04e-03

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 43.13  E-value: 1.04e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQ-REIEMEKEEQRK----REL-EAKEAARKELEKQRQQEWEQariaemnaqKEREQE 445
Cdd:PRK03918  458 TAELKRIEKELKEIEEKERKLRKElRELEKVLKKESEliklKELaEQLKELEEKLKKYNLEELEK---------KAEEYE 528
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  446 RvLKQKAhnTQLNVELSTLNEKIKELSQricdtragvtnvktvidgmrtqrdtsmsemsqLKARIKEQNAKLLQLTQERA 525
Cdd:PRK03918  529 K-LKEKL--IKLKGEIKSLKKELEKLEE--------------------------------LKKKLAELEKKLDELEEELA 573
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  526 KWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLY 605
Cdd:PRK03918  574 ELLKELEELGFESVEELEERLKELEPFYNEYLELKDAEKELEREEKELKKLEEELDKAFEELAETEKRLEELRKELEELE 653
                         250
                  ....*....|....*...
gi 442628730  606 KEYDVQRTSVLELKYNRK 623
Cdd:PRK03918  654 KKYSEEEYEELREEYLEL 671
SH3_Noxa1_C cd12047
C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox ...
681-732 1.10e-03

C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox and is a cytosolic subunit of the nonphagocytic NADPH oxidase complex Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Noxa1 is co-expressed with Nox1 in colon, stomach, uterus, prostate, and vascular smooth muscle cells, consistent with its regulatory role. It does not interact with p40phox, unlike p67phox, making Nox1 activity independent of p40phox, unlike Nox2. Noxa1 contains TPR, PB1, and C-terminal SH3 domains, but lacks the central SH3 domain that is present in p67phox. The TPR domain binds activated GTP-bound Rac. The C-terminal SH3 domain binds the polyproline motif found at the C-terminus of Noxo1, a homolog of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212980  Cd Length: 53  Bit Score: 37.88  E-value: 1.10e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVEK 732
Cdd:cd12047     4 AQHDYSAQGPEDLEFSQGDTIDILSEVNQE--WLEGHCDGRIGIFPKCFAVR 53
SH3_Tks4_1 cd12075
First Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
948-998 1.10e-03

First Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the first SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213008  Cd Length: 55  Bit Score: 38.13  E-value: 1.10e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWegelqAKGRRRQIGWFPAT 998
Cdd:cd12075     5 VVANYQKQESSEISLYVGQVVDIIEKNESGWW-----FVSTADEQGWVPAT 50
SH3_PEX13_eumet cd11864
Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and ...
1031-1079 1.12e-03

Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and is required for protein import into the peroxisomal matrix and membrane. It is an integral membrane protein that is essential for the localization of PEX14 and the import of proteins containing the peroxisome matrix targeting signals, PTS1 and PTS2. Mutations of the PEX13 gene in humans lead to a wide range of peroxisome biogenesis disorders (PBDs), the most severe of which is known as Zellweger syndrome (ZS), a severe multisystem disorder characterized by hypotonia, psychomotor retardation, and neuronal migration defects. PEX13 contains two transmembrane regions and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212798  Cd Length: 58  Bit Score: 37.99  E-value: 1.12e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDE----PEWWRGELNGL-SGLFPSNYV 1079
Cdd:cd11864     3 RAEYDFVAESEDELSFRAGDKLRLAPKELqprvRGWLLATVDGQkIGLVPANYV 56
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
680-731 1.13e-03

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 38.06  E-value: 1.13e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVPLEQNAEPGW-LAGEINGHTGWFPESYVE 731
Cdd:cd11767     3 VALYPFTGENDEELSFEKGERLEIIEKPEDDPDWwKARNALGTTGLVPRNYVE 55
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
785-832 1.13e-03

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 38.06  E-value: 1.13e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYV 832
Cdd:cd11902     4 FVKFAYVAEREDELSLVKGSRVTVMEKCSDgWWRGSYNGQIGWFPSNYV 52
SH3_CRK_N cd11758
N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
678-732 1.15e-03

N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The N-terminal SH3 domain of CRK binds a number of target proteins including DOCK180, C3G, SOS, and cABL. The CRK family includes two alternatively spliced protein forms, CRKI and CRKII, that are expressed by the CRK gene, and the CRK-like (CRKL) protein, which is expressed by a distinct gene (CRKL). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212692 [Multi-domain]  Cd Length: 55  Bit Score: 38.11  E-value: 1.15e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11758     2 YVRALFDFPGNDDEDLPFKKGEILTV-IRKPEEQWWNARNSEGKTGMIPVPYVEK 55
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
678-730 1.18e-03

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 38.04  E-value: 1.18e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILVpleQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11991     1 EYVAMYTYESNEQGDLTFQQGDVILV---TKKDGDWWTGTVGDKTGVFPSNYV 50
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
680-733 1.18e-03

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 38.05  E-value: 1.18e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  680 QAVYEFNARNAEEITFVPGDIIlvpleQNAEP---GWLAGEINGHTG-WFPESYVEKL 733
Cdd:cd11970     7 KALFDYKAQREDELTFTKNAII-----QNVEKqegGWWRGDYGGKKQlWFPSNYVEEI 59
SH3_DNMBP_N4 cd11797
Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
681-729 1.18e-03

Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP bind the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212731  Cd Length: 50  Bit Score: 37.79  E-value: 1.18e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVPleQNAEPGWLAGEINGHTGWFPESY 729
Cdd:cd11797     4 ALYRFQALEPNELDFEVGDRIRII--ATLEDGWLEGELKGRRGIFPHRF 50
SH3_PI3K_p85 cd11776
Src Homology 3 domain of the p85 regulatory subunit of Class IA Phosphatidylinositol 3-kinases; ...
677-731 1.19e-03

Src Homology 3 domain of the p85 regulatory subunit of Class IA Phosphatidylinositol 3-kinases; Class I PI3Ks convert PtdIns(4,5)P2 to the critical second messenger PtdIns(3,4,5)P3. They are heterodimers and exist in multiple isoforms consisting of one catalytic subunit (out of four isoforms) and one of several regulatory subunits. Class IA PI3Ks associate with the p85 regulatory subunit family, which contains SH3, RhoGAP, and SH2 domains. The p85 subunits recruit the PI3K p110 catalytic subunit to the membrane, where p110 phosphorylates inositol lipids. Vertebrates harbor two p85 isoforms, called alpha and beta. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212710  Cd Length: 72  Bit Score: 38.64  E-value: 1.19e-03
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  677 VKYQAVYEFNARNAEEITFVPGDIILV----------PLEQNAEP---GWLAG--EINGHTGWFPESYVE 731
Cdd:cd11776     1 VQYRALYDYEKERDEDIILKTGDVLVVenpellalgvPDGKETVPkpeGWLEGknERTGERGDFPGTYVE 70
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
784-834 1.20e-03

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 38.25  E-value: 1.20e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKE-----GEWWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12141     2 YYAVYTFKARSPNELSVSANQRVRILEFSdltgnKEWWLAEANGQKGYVPSNYIRK 57
SH3_MYO15B cd12068
Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its ...
681-731 1.25e-03

Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its similarity with myosin XVa. It is a transcribed and unprocessed pseudogene whose predicted amino acid sequence contains mutated or deleted amino acid residues that are normally conserved and important for myosin function. The related myosin XVa is important for normal growth of mechanosensory stereocilia of inner ear hair cells. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 213001  Cd Length: 55  Bit Score: 37.93  E-value: 1.25e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGDII-LVPLeQNAEPGWLAGEINGHTGWFPESYVE 731
Cdd:cd12068     4 ALRSYITDDKSLLSFHRGDLIkLLPM-AGLEPGWQFGSTGGRSGLFPADIVQ 54
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
379-579 1.29e-03

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 42.79  E-value: 1.29e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   379 EAERKQQEELE---RQLQRQRE---IEMEKEEQRKRELE----AKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVL 448
Cdd:pfam05483  541 EKEMNLRDELEsvrEEFIQKGDevkCKLDKSEENARSIEyevlKKEKQMKILENKCNNLKKQIENKNKNIEELHQENKAL 620
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   449 KQK--AHNTQLNV----------ELSTLNEKIKELS----QRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKE 512
Cdd:pfam05483  621 KKKgsAENKQLNAyeikvnklelELASAKQKFEEIIdnyqKEIEDKKISEEKLLEEVEKAKAIADEAVKLQKEIDKRCQH 700
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730   513 QNAKLLQLTQE-RAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKED 579
Cdd:pfam05483  701 KIAEMVALMEKhKHQYDKIIEERDSELGLYKNKEQEQSSAKAALEIELSNIKAELLSLKKQLEIEKEE 768
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
945-1005 1.32e-03

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 38.07  E-value: 1.32e-03
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 442628730  945 IAQVIAPYEATS--TEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVKVLQG 1005
Cdd:cd11972     2 LEKVVAIYDYTKdkEDELSFQEGAIIYVIKKNDDGWYEGVMNG-----VTGLFPGNYVESIMH 59
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
948-1000 1.33e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 38.01  E-value: 1.33e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYV 1000
Cdd:cd11984     5 AVKAYSPQGEGEIQLNRGERVKVLSIGEGGFWEGTV--KGRT---GWFPADCV 52
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
952-1001 1.34e-03

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 37.90  E-value: 1.34e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakGRRRQIgWFPATYVK 1001
Cdd:cd11969     8 YRAKRSDELSFCKGALIHNVSKETGGWWKGDY---GGKVQH-YFPSNYVE 53
SH3_Sorbs2_3 cd11917
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), ...
1032-1079 1.37e-03

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212850 [Multi-domain]  Cd Length: 61  Bit Score: 38.05  E-value: 1.37e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG--ELNGLSGLFPSNYV 1079
Cdd:cd11917     9 ALYNYMPRNEDELELREGDVIDVMEKCDDGWFVGtsRRTKFFGTFPGNYV 58
UPF0242 pfam06785
Uncharacterized protein family (UPF0242) N-terminus; This region includes an N-terminal ...
374-464 1.38e-03

Uncharacterized protein family (UPF0242) N-terminus; This region includes an N-terminal transmembrane region and a C-terminal coiled-coil.


Pssm-ID: 429117 [Multi-domain]  Cd Length: 194  Bit Score: 40.96  E-value: 1.38e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERQLQrQREIEMEKEEQRKRELEAK--------EAARKELEKQRQQEWE-----QARIAEMNAQK 440
Cdd:pfam06785   88 LEETLEELQSEEERLEEELS-QKEEELRRLTEENQQLQIQlqqisqdfAEFRLESEEQLAEKQLlineyQQTIEEQRSVL 166
                           90       100
                   ....*....|....*....|....*.
gi 442628730   441 EREQERV--LKQKAHNtqLNVELSTL 464
Cdd:pfam06785  167 EKRQDQIenLESKVRD--LNYEIKTL 190
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
371-594 1.42e-03

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 42.85  E-value: 1.42e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKArLEAERKQ-QEELERQLQRQREIEMEKEEQRKrELEAKEAARKEL-EKQRQQEweqARIAEMNAQKEREQervl 448
Cdd:pfam01576  832 EKKLKN-LEAELLQlQEDLAASERARRQAQQERDELAD-EIASGASGKSALqDEKRRLE---ARIAQLEEELEEEQ---- 902
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   449 kqkahntqLNVELstLNEKIKELSQRicdtragVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERakwE 528
Cdd:pfam01576  903 --------SNTEL--LNDRLRKSTLQ-------VEQLTTELAAERSTSQKSESARQQLERQNKELKAKLQEMEGTV---K 962
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   529 AKSKASGAALGGENAQ-QEQLNAAFAHKQL---IINQIKDK-------VENISKEIESKKEDINTNDVQMSELKAEL 594
Cdd:pfam01576  963 SKFKSSIAALEAKIAQlEEQLEQESRERQAankLVRRTEKKlkevllqVEDERRHADQYKDQAEKGNSRMKQLKRQL 1039
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
947-1001 1.43e-03

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 37.67  E-value: 1.43e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd12055     3 QVAFSYLPQNEDELELKVGDIIEVVGEVEEGWWEGVLNGK-----TGMFPSNFIK 52
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
378-619 1.47e-03

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 42.79  E-value: 1.47e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   378 LEAERKQQEE-----------LERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQER 446
Cdd:pfam05483  115 IEAQRKAIQElqfenekvslkLEEEIQENKDLIKENNATRHLCNLLKETCARSAEKTKKYEYEREETRQVYMDLNNNIEK 194
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   447 V------LKQKAHNTQLNV--ELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMS-----------QLK 507
Cdd:pfam05483  195 MilafeeLRVQAENARLEMhfKLKEDHEKIQHLEEEYKKEINDKEKQVSLLLIQITEKENKMKDLTflleesrdkanQLE 274
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   508 ARIKEQNAKLLQLTQERAKWEA----------KSKASGAALGGE---------------NAQQEQLNAAFAHKQLIINQI 562
Cdd:pfam05483  275 EKTKLQDENLKELIEKKDHLTKeledikmslqRSMSTQKALEEDlqiatkticqlteekEAQMEELNKAKAAHSFVVTEF 354
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   563 KDKVENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELK 619
Cdd:pfam05483  355 EATTCSLEELLRTEQQRLEKNEDQLKIITMELQKKSSELEEMTKFKNNKEVELEELK 411
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
339-612 1.47e-03

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 42.65  E-value: 1.47e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   339 KGQAELDRRRkiMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARK 418
Cdd:TIGR00618  430 KKQQELQQRY--AELCAAAITCTAQCEKLEKIHLQESAQSLKEREQQLQTKEQIHLQETRKKAVVLARLLELQEEPCPLC 507
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   419 ELEKQRQQEWEQARIAEMNAQK-EREQERVLKQKAHNTQLNVELSTLNEKIKELSQRIcdtragvtnvktvidgmrTQRD 497
Cdd:TIGR00618  508 GSCIHPNPARQDIDNPGPLTRRmQRGEQTYAQLETSEEDVYHQLTSERKQRASLKEQM------------------QEIQ 569
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   498 TSMSEMSQLKARIKEQNAKLLQLTQERAKW-EAKSKASGAALGGENAQQEQLNAAFAHKQLIINQikdkvENISKEIESK 576
Cdd:TIGR00618  570 QSFSILTQCDNRSKEDIPNLQNITVRLQDLtEKLSEAEDMLACEQHALLRKLQPEQDLQDVRLHL-----QQCSQELALK 644
                          250       260       270
                   ....*....|....*....|....*....|....*.
gi 442628730   577 KEDINTNDVQMSELKAELSALITKCEDLYKEYDVQR 612
Cdd:TIGR00618  645 LTALHALQLTLTQERVREHALSIRVLPKELLASRQL 680
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
786-833 1.49e-03

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 37.61  E-value: 1.49e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11929     5 ALCNYRGHNPGDLKFNKGDVILLRRQLDEnWYLGEINGVSGIFPASSVE 53
SH3_NoxO1_2 cd12024
Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox ...
784-833 1.50e-03

Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox Organizing protein 1 (NoxO1) is a critical regulator of enzyme kinetics of the nonphagocytic NADPH oxidase Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Nox1 is expressed in colon, stomach, uterus, prostate, and vascular smooth muscle cells. NoxO1 is involved in targeting activator subunits (such as NoxA1) to Nox1. It is co-localized with Nox1 in the membranes of resting cells and directs the subcellular localization of Nox1. NoxO1 contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of NoxO1. The tandem SH3 domains of NoxO1 interact with the PRR of p22phox, which also complexes with Nox1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212957  Cd Length: 53  Bit Score: 37.70  E-value: 1.50e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12024     2 YYATRAYEAQKEDELSVPAGVVVEVLQKSDNgWWLIRYNGRAGYVPSMYLQ 52
SH3_Tks5_2 cd12077
Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
782-834 1.55e-03

Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the second SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213010  Cd Length: 54  Bit Score: 37.70  E-value: 1.55e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  782 EYYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12077     1 EKYVTVQPYTSQGKDEIGFEKGVTVEVIQKNLEgWWYIRYLGKEGWAPASYLKK 54
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
341-451 1.58e-03

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 41.83  E-value: 1.58e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDR--RRKIMEDQQRKErEERER-KEREEADKREKARLEAERKQQEELERQ--LQRQREIE----MEKEEQRKRELE 411
Cdd:pfam13868  212 QEEQERkeRQKEREEAEKKA-RQRQElQQAREEQIELKERRLAEEAEREEEEFErmLRKQAEDEeieqEEAEKRRMKRLE 290
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|
gi 442628730   412 AKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQK 451
Cdd:pfam13868  291 HRRELEKQIEEREEQRAAEREEELEEGERLREEEAERRER 330
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
375-631 1.60e-03

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 42.40  E-value: 1.60e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   375 KARLEAERKQQEEL-ERQLQRQREIEMEKEE--QRKRELEAKeaarkeLEKQRqqewEQARIAEMNAQKEREQERVLKQK 451
Cdd:pfam05483  526 KKQEERMLKQIENLeEKEMNLRDELESVREEfiQKGDEVKCK------LDKSE----ENARSIEYEVLKKEKQMKILENK 595
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   452 AHNTQLNVElsTLNEKIKELSQRicdtragvtnvktvidgMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKS 531
Cdd:pfam05483  596 CNNLKKQIE--NKNKNIEELHQE-----------------NKALKKKGSAENKQLNAYEIKVNKLELELASAKQKFEEII 656
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   532 KASGAALGGENAQQEQLNAAFAHKQLIInqikDKVENISKEIeskkedintnDVQMSELKAELSALITKCEDLYKEYDVQ 611
Cdd:pfam05483  657 DNYQKEIEDKKISEEKLLEEVEKAKAIA----DEAVKLQKEI----------DKRCQHKIAEMVALMEKHKHQYDKIIEE 722
                          250       260
                   ....*....|....*....|
gi 442628730   612 RTSVLELKYNRKNETSVSSA 631
Cdd:pfam05483  723 RDSELGLYKNKEQEQSSAKA 742
SH3_SKAP1-like cd11866
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This ...
792-832 1.61e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This subfamily is composed of SKAP1, SKAP2, and similar proteins. SKAP1 and SKAP2 are immune cell-specific adaptor proteins that play roles in T- and B-cell adhesion, respectively, and are thus important in the migration of T- and B-cells to sites of inflammation and for movement during T-cell conjugation with antigen-presenting cells. Both SKAP1 and SKAP2 bind to ADAP (adhesion and degranulation-promoting adaptor protein), among many other binding partners. They contain a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212800  Cd Length: 53  Bit Score: 37.41  E-value: 1.61e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 442628730  792 SAEEGD-LSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNYV 832
Cdd:cd11866     9 SGNEPDeLSFKRGDLIYIISKEYDsfgWWVGELNGKVGLVPKDYL 53
SH3_CSK cd11769
Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr ...
681-732 1.63e-03

Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr kinase containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, CSK is translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. CSK catalyzes the tyr phosphorylation of the regulatory C-terminal tail of Src kinases, resulting in their inactivation. It is expressed in a wide variety of tissues and plays a role, as a regulator of Src, in cell proliferation, survival, and differentiation, and consequently, in cancer development and progression. In addition, CSK also shows Src-independent functions. It is a critical component in G-protein signaling, and plays a role in cytoskeletal reorganization and cell migration. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212703 [Multi-domain]  Cd Length: 57  Bit Score: 37.67  E-value: 1.63e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  681 AVYEFNARNAEEITFVPGDIILVpLEQNAEPGW-LAGEINGHTGWFPESYVEK 732
Cdd:cd11769     6 AKYNFNGASEEDLPFKKGDILTI-VAVTKDPNWyKAKNKDGREGMIPANYVQK 57
SH3_Bin1 cd12139
Src Homology 3 domain of Bridging integrator 1 (Bin1), also called Amphiphysin-2; Bin1 ...
678-733 1.67e-03

Src Homology 3 domain of Bridging integrator 1 (Bin1), also called Amphiphysin-2; Bin1 isoforms are localized in many different tissues and may function in intracellular vesicle trafficking. It plays a role in the organization and maintenance of the T-tubule network in skeletal muscle. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Bin1 contains an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR) and a C-terminal SH3 domain. The SH3 domain of Bin1 forms transient complexes with actin, myosin filaments, and CDK5, to facilitate sarcomere organization and myofiber maturation. It also binds dynamin and prevents its self-assembly. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213015  Cd Length: 72  Bit Score: 37.97  E-value: 1.67e-03
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  678 KYQAVYEFNARNAEEITFVPGDIILV-PLE--QNAEPGWLAG----------EINGHTGWFPESYVEKL 733
Cdd:cd12139     4 KVQAQHDYTATDTDELQLKAGDVVLViPFQnpEEQDEGWLMGvkesdwnqhkKLEKCRGVFPENFTERV 72
SH3_SKAP1 cd12044
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 ...
679-730 1.67e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 (Src kinase-associated protein of 55kDa), is an immune cell-specific adaptor protein that plays an important role in T-cell adhesion, migration, and integrin clustering. It is expressed exclusively in T-lymphocytes, mast cells, and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), Fyn, Riam, RapL, and RasGRP. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212977  Cd Length: 53  Bit Score: 37.53  E-value: 1.67e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd12044     2 YQGLWDCFGDNPDELSFQRGDLIYILSKEYNMYGWWVGELNGIVGIVPKDYL 53
SH3_MPP1 cd12080
Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1); ...
1032-1076 1.68e-03

Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1); MPP1, also called 55 kDa erythrocyte membrane protein (p55), is a ubiquitously-expressed scaffolding protein that plays roles in regulating neutrophil polarity, cell shape, hair cell development, and neural development and patterning of the retina. It was originally identified as an erythrocyte protein that stabilizes the actin cytoskeleton to the plasma membrane by forming a complex with 4.1R protein and glycophorin C. MPP1 is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains the three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213013  Cd Length: 62  Bit Score: 38.01  E-value: 1.68e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730 1032 ALYPYKAQNDD-------ELSFDKDDIISVLGRDEPEWWRGELNGLS----GLFPS 1076
Cdd:cd12080     4 AQFDYDPKKDNlipckeaGLKFQTGDIIQIINKDDSNWWQGRVEGSGeesaGLIPS 59
TPR_MLP1_2 pfam07926
TPR/MLP1/MLP2-like protein; The sequences featured in this family are similar to a region of ...
372-473 1.71e-03

TPR/MLP1/MLP2-like protein; The sequences featured in this family are similar to a region of human TPR protein and to yeast myosin-like proteins 1 (MLP1) and 2 (MLP2). These proteins share a number of features; for example, they all have coiled-coil regions and all three are associated with nuclear pores. TPR is thought to be a component of nuclear pore complex- attached intra-nuclear filaments, and is implicated in nuclear protein import. Moreover, its N-terminal region is involved in the activation of oncogenic kinases, possibly by mediating the dimerization of kinase domains or by targeting these kinases to the nuclear pore complex. MLP1 and MLP2 are involved in the process of telomere length regulation, where they are thought to interact with proteins such as Tel1p and modulate their activity.


Pssm-ID: 462316 [Multi-domain]  Cd Length: 129  Bit Score: 39.54  E-value: 1.71e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQ-EWEQARIAEMNAQKEREQERVLKQ 450
Cdd:pfam07926   11 KRLKEEAADAEAQLQKLQEDLEKQAEIAREAQQNYERELVLHAEDIKALQALREElNELKAEIAELKAEAESAKAELEES 90
                           90       100
                   ....*....|....*....|....*..
gi 442628730   451 KAHNT----QLNVELSTLNEKIKELSQ 473
Cdd:pfam07926   91 EESWEeqkkELEKELSELEKRIEDLNE 117
SH3_SH3RF3_3 cd11925
Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
784-832 1.73e-03

Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212858  Cd Length: 57  Bit Score: 37.67  E-value: 1.73e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  784 YIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGSRTGM---FPSNYV 832
Cdd:cd11925     3 YLALYAYKPQKNDELELRKGEMYRVIEKCQDGWFKGTSLRTGVsgvFPGNYV 54
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
952-999 1.76e-03

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 37.46  E-value: 1.76e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRRrqiGWFPATY 999
Cdd:cd11817     8 FTGETEEDLSFQRGDRILVTEHLDAEWSRGRLN--GRE---GIFPRAF 50
Golgin_A5 pfam09787
Golgin subfamily A member 5; Members of this family of proteins are involved in maintaining ...
374-540 1.77e-03

Golgin subfamily A member 5; Members of this family of proteins are involved in maintaining Golgi structure. They stimulate the formation of Golgi stacks and ribbons, and are involved in intra-Golgi retrograde transport. Two main interactions have been characterized: one with RAB1A that has been activated by GTP-binding and another with isoform CASP of CUTL1.


Pssm-ID: 462900 [Multi-domain]  Cd Length: 305  Bit Score: 41.67  E-value: 1.77e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAkeaarkELEKQRQqewEQARIAEmnaqkEREQERVlkqkah 453
Cdd:pfam09787   76 ELQELEAQQQEEAESSREQLQELEEQLATERSARREAEA------ELERLQE---ELRYLEE-----ELRRSKA------ 135
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   454 ntqlnvelsTLNEKIKELSQRICDTRAGVTNvktvidgmRTQRDTSMSEM---------------SQLKARIKEQNAKLL 518
Cdd:pfam09787  136 ---------TLQSRIKDREAEIEKLRNQLTS--------KSQSSSSQSELenrlhqltetliqkqTMLEALSTEKNSLVL 198
                          170       180
                   ....*....|....*....|..
gi 442628730   519 QLtqERAKWEAKSkASGAALGG 540
Cdd:pfam09787  199 QL--ERMEQQIKE-LQGEGSNG 217
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
947-1001 1.80e-03

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 37.69  E-value: 1.80e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIAPYEATS--TEQLSLTRGQLIMIRKKTDSGWWEGELQakgrrRQIGWFPATYVK 1001
Cdd:cd11971     1 KVVAIYDYSKdkDDELSFMEGAIIYVIKKNDDGWYEGVCN-----GVTGLFPGNYVE 52
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
375-443 1.83e-03

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 41.83  E-value: 1.83e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 442628730   375 KARLEAERKQQEELERQLQRQ----REIEMEKEEQRKRELEAKEAARKELEKQRQQE-WEQARIAEMNAQKERE 443
Cdd:pfam13868  268 RKQAEDEEIEQEEAEKRRMKRlehrRELEKQIEEREEQRAAEREEELEEGERLREEEaERRERIEEERQKKLKE 341
SH3_ARHGEF37_C2 cd11941
Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 ...
1029-1079 1.87e-03

Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 contains a RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. Its specific function is unknown. Its domain architecture is similar to the C-terminal half of DNMBP or Tuba, a cdc42-specific GEF that provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics, and plays an important role in regulating cell junction configuration. GEFs activate small GTPases by exchanging bound GDP for free GTP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212874  Cd Length: 57  Bit Score: 37.58  E-value: 1.87e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVL----GRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11941     1 QVVAAYPFTARSKHEVSLQAGQPVTVLephdKKGSPEWSLVEVNGQRGYVPSSYL 55
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
1029-1079 1.89e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 37.24  E-value: 1.89e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11984     2 TFIAVKAYSPQGEGEIQLNRGERVKVLSIGEGGFWEGTVKGRTGWFPADCV 52
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
946-1001 1.90e-03

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 37.51  E-value: 1.90e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVK 1001
Cdd:cd11949     2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWKGACHG-----QTGMFPRNYVT 52
SH3_FCHSD_1 cd11761
First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
677-732 1.90e-03

First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212695 [Multi-domain]  Cd Length: 57  Bit Score: 37.34  E-value: 1.90e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  677 VKYQAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAG-EINGHTGWFPESYVEK 732
Cdd:cd11761     2 VTCKVLYSYEAQRPDELTITEGEELEV-IEDGDGDGWVKArNKSGEVGYVPENYLQF 57
mukB PRK04863
chromosome partition protein MukB;
377-604 1.99e-03

chromosome partition protein MukB;


Pssm-ID: 235316 [Multi-domain]  Cd Length: 1486  Bit Score: 42.25  E-value: 1.99e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  377 RLEAERKQQEeLERQLQRQReIEMEKEEQRKRELeakeaarKELEKQRQQEweqariaemnaqkeREQERVLKQ--KAHN 454
Cdd:PRK04863  491 RSEAWDVARE-LLRRLREQR-HLAEQLQQLRMRL-------SELEQRLRQQ--------------QRAERLLAEfcKRLG 547
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  455 TQLNVElSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDtsmsemsQLKARIKEqnakllqLTQERAKWEAkSKAS 534
Cdd:PRK04863  548 KNLDDE-DELEQLQEELEARLESLSESVSEARERRMALRQQLE-------QLQARIQR-------LAARAPAWLA-AQDA 611
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  535 GAALggenaqQEQLNAAFAHKQLIINQIKDKVENISK------EIESKKEDIntnDVQMSELK----AELSALITKCEDL 604
Cdd:PRK04863  612 LARL------REQSGEEFEDSQDVTEYMQQLLEREREltverdELAARKQAL---DEEIERLSqpggSEDPRLNALAERF 682
PRK00409 PRK00409
recombination and DNA strand exchange inhibitor protein; Reviewed
374-472 1.99e-03

recombination and DNA strand exchange inhibitor protein; Reviewed


Pssm-ID: 234750 [Multi-domain]  Cd Length: 782  Bit Score: 42.12  E-value: 1.99e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  374 EKARLEAERKqQEELERQLQRQREIE-MEKEEQRKRELEAKEAARKELEK-----QRQQEWEQARIAE---------MNA 438
Cdd:PRK00409  540 EALLKEAEKL-KEELEEKKEKLQEEEdKLLEEAEKEAQQAIKEAKKEADEiikelRQLQKGGYASVKAheliearkrLNK 618
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 442628730  439 QKEREQERVLKQKAHNTQLN----VELSTLNEKIKELS 472
Cdd:PRK00409  619 ANEKKEKKKKKQKEKQEELKvgdeVKYLSLGQKGEVLS 656
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
951-1001 2.00e-03

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 37.54  E-value: 2.00e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  951 PYEATSTEQLSLTRGQLIMIRKKT--DSGWWEGELQAkgrrrQIGWFPATYVK 1001
Cdd:cd11988     9 PFEARNHDEMSFNAGDIIQVDEKTvgEPGWLYGSFQG-----NFGWFPCNYVE 56
CCDC47 pfam07946
PAT complex subunit CCDC47; This family represents CCDC47 proteins which are a component of ...
374-419 2.01e-03

PAT complex subunit CCDC47; This family represents CCDC47 proteins which are a component of the PAT complex, an endoplasmic reticulum (ER)-resident membrane multiprotein complex that facilitates multi-pass membrane proteins insertion into membranes. The PAT complex, formed by CCDC47 and Asterix proteins, acts as an intramembrane chaperone by directly interacting with nascent transmembrane domains (TMDs), releasing its substrates upon correct folding, and is needed for optimal biogenesis of multi-pass membrane proteins. CCDC47 is required to maintain the stability of Asterix. CCDC47 is associated with various membrane-associated processes and is component of a ribosome-associated ER translocon complex involved in multi-pass membrane protein transport into the ER membrane and biogenesis. It is also involved in the regulation of calcium ion homeostasis in the ER, being also required for proper protein degradation via the ERAD (ER-associated degradation) pathway.


Pssm-ID: 462322  Cd Length: 323  Bit Score: 41.78  E-value: 2.01e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 442628730   374 EKARLEAERKQQEELERQLQRQREIEMEKEEQRKreLEAKEAARKE 419
Cdd:pfam07946  278 EEERAEEAQEKKEEAKKKEREEKLAKLSPEEQRK--YEEKERKKEQ 321
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
946-1001 2.03e-03

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 37.50  E-value: 2.03e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRRrqiGWFPATYVK 1001
Cdd:cd11961     2 AKALYDYDAAEDNELSFFENDKIINIEFVDDDWWLGECH--GSR---GLFPSNYVE 52
SH3_Abl cd11850
Src homology 3 domain of the Protein Tyrosine Kinase, Abelson kinase; Abl (or c-Abl) is a ...
1031-1081 2.04e-03

Src homology 3 domain of the Protein Tyrosine Kinase, Abelson kinase; Abl (or c-Abl) is a ubiquitously-expressed cytoplasmic (or nonreceptor) PTK that contains SH3, SH2, and tyr kinase domains in its N-terminal region, as well as nuclear localization motifs, a putative DNA-binding domain, and F- and G-actin binding domains in its C-terminal tail. It also contains a short autoinhibitory cap region in its N-terminus. Abl function depends on its subcellular localization. In the cytoplasm, Abl plays a role in cell proliferation and survival. In response to DNA damage or oxidative stress, Abl is transported to the nucleus where it induces apoptosis. In chronic myelogenous leukemia (CML) patients, an aberrant translocation results in the replacement of the first exon of Abl with the BCR (breakpoint cluster region) gene. The resulting BCR-Abl fusion protein is constitutively active and associates into tetramers, resulting in a hyperactive kinase sending a continuous signal. This leads to uncontrolled proliferation, morphological transformation and anti-apoptotic effects. BCR-Abl is the target of selective inhibitors, such as imatinib (Gleevec), used in the treatment of CML. Abl2, also known as ARG (Abelson-related gene), is thought to play a cooperative role with Abl in the proper development of the nervous system. The Tel-ARG fusion protein, resulting from reciprocal translocation between chromosomes 1 and 12, is associated with acute myeloid leukemia (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212784  Cd Length: 56  Bit Score: 37.39  E-value: 2.04e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWW---RGELNGLSGLFPSNYVGP 1081
Cdd:cd11850     3 VALYDFVASGENQLSIKKGEQLRVLGYNKNGEWceaESKSTGGQGWVPSNYITP 56
SH3_SNX18 cd11897
Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal ...
1032-1079 2.05e-03

Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. It binds FIP5 and is required for apical lumen formation. It may also play a role in axonal elongation. SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX18 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212830 [Multi-domain]  Cd Length: 55  Bit Score: 37.28  E-value: 2.05e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELN--GLSGLFPSNYV 1079
Cdd:cd11897     4 ALYDFRSENPGEISLREHEVLSLCSEQDIEGWLEGVNsrGDRGLFPASYV 53
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
952-1002 2.06e-03

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 37.40  E-value: 2.06e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqakgrRRQIGWFPATYVKV 1002
Cdd:cd11959     8 YQAADDDEISFDPDDIITNIEMIDEGWWRGVC-----RGKYGLFPANYVEL 53
SH3_SH3RF3_2 cd11931
Second Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1032-1079 2.13e-03

Second Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212864  Cd Length: 55  Bit Score: 37.21  E-value: 2.13e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1032 ALYPY----KAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11931     4 ALYDFeikdKDQDKDCLTFTKDEILTVIRRVDENWAEGMLGDKIGIFPILYV 55
235kDa-fam TIGR01612
reticulocyte binding/rhoptry protein; This model represents a group of paralogous families in ...
371-608 2.22e-03

reticulocyte binding/rhoptry protein; This model represents a group of paralogous families in plasmodium species alternately annotated as reticulocyte binding protein, 235-kDa family protein and rhoptry protein. Rhoptry protein is localized on the cell surface and is extremely large (although apparently lacking in repeat structure) and is important for the process of invasion of the RBCs by the parasite. These proteins are found in P. falciparum, P. vivax and P. yoelii.


Pssm-ID: 130673 [Multi-domain]  Cd Length: 2757  Bit Score: 42.35  E-value: 2.22e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   371 DKREKARLEAER-KQQEELERQLQRQREIEMEKEEQRKRELEAK----------EAARKELEKQRQQEWEQARIAEMNAQ 439
Cdd:TIGR01612 1493 DKSKGCKDEADKnAKAIEKNKELFEQYKKDVTELLNKYSALAIKnkfaktkkdsEIIIKEIKDAHKKFILEAEKSEQKIK 1572
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   440 K-EREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDtragVTNVKTVIDGMRTQRDTSMSEMSQLKarIKEQNAKL- 517
Cdd:TIGR01612 1573 EiKKEKFRIEDDAAKNDKSNKAAIDIQLSLENFENKFLK----ISDIKKKINDCLKETESIEKKISSFS--IDSQDTELk 1646
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   518 --------LQLTQERAKWEAKS-KASGAALGGENAQQEQL-NAAFAHKQL----IINQIKDKVENISKEIESKKE----- 578
Cdd:TIGR01612 1647 engdnlnsLQEFLESLKDQKKNiEDKKKELDELDSEIEKIeIDVDQHKKNyeigIIEKIKEIAIANKEEIESIKEliept 1726
                          250       260       270
                   ....*....|....*....|....*....|....*.
gi 442628730   579 ------DINTNDVQMSELKAELSALITKCEDLYKEY 608
Cdd:TIGR01612 1727 ienlisSFNTNDLEGIDPNEKLEEYNTEIGDIYEEF 1762
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
372-447 2.25e-03

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 41.67  E-value: 2.25e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREiEMEKEEQRKRELEAKEAARKELEKQRQQEWEQAR------IAEMNAQKEREQE 445
Cdd:COG4942   163 AALRAELEAERAELEALLAELEEERA-ALEALKAERQKLLARLEKELAELAAELAELQQEAeelealIARLEAEAAAAAE 241

                  ..
gi 442628730  446 RV 447
Cdd:COG4942   242 RT 243
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
946-1002 2.27e-03

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 37.24  E-value: 2.27e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGrrrqiGWFPATYVKV 1002
Cdd:cd11927     3 AKALYNYEGKEPGDLKFSKGDIIILRRQVDENWYHGEVNGIH-----GFFPTNFVQI 54
SH3_CRK_C cd11759
C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
954-1002 2.33e-03

C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The C-terminal SH3 domain of CRK has not been shown to bind any target protein; it acts as a negative regulator of CRK function by stabilizing a structure that inhibits the access by target proteins to the N-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212693 [Multi-domain]  Cd Length: 57  Bit Score: 37.08  E-value: 2.33e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  954 ATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVKV 1002
Cdd:cd11759    14 AYDKTALALEVGDLVKVTKINVSGQWEGELNGK-----VGHFPFTHVEL 57
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
797-833 2.35e-03

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 37.09  E-value: 2.35e-03
                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 442628730  797 DLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11869    15 ELNFKAGDVIFLLSRvNKDWLEGTVRGATGIFPLSFVK 52
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
952-1001 2.37e-03

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 36.98  E-value: 2.37e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWegeLQAKGRRRQIGWFPATYVK 1001
Cdd:cd11858     8 FAGSVANELSLKKDDIVYIVQKEDNGWW---LAKKLDESKEGWVPAAYLE 54
SH3_BOI cd11886
Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces ...
1030-1078 2.39e-03

Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces cerevisiae proteins BOI1 and BOI2, and similar proteins. They contain an N-terminal SH3 domain, a Sterile alpha motif (SAM), and a Pleckstrin homology (PH) domain at the C-terminus. BOI1 and BOI2 interact with the SH3 domain of Bem1p, a protein involved in bud formation. They promote polarized cell growth and participates in the NoCut signaling pathway, which is involved in the control of cytokinesis. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212819  Cd Length: 55  Bit Score: 37.31  E-value: 2.39e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDE---PEWWRGE--LNGLSGLFPSNY 1078
Cdd:cd11886     2 LIVIHDFNARSEDELTLKPGDKIELIEDDEefgDGWYLGRnlRTGETGLFPVVF 55
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
947-1001 2.51e-03

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 37.12  E-value: 2.51e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  947 QVIA--PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGElqAKGRrrqIGWFPATYVK 1001
Cdd:cd11870     1 QVVAlhRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGH--SDGR---VGIFPKCFVV 52
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
397-607 2.54e-03

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 41.93  E-value: 2.54e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   397 EIEMEKEEQRKRELEAKEaarkeLEKQrqqeweqarIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRIC 476
Cdd:TIGR04523  111 EIKNDKEQKNKLEVELNK-----LEKQ---------KKENKKNIDKFLTEIKKKEKELEKLNNKYNDLKKQKEELENELN 176
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   477 DTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTqerakwEAKSkasgaalggenaQQEQLNAAFAHKQ 556
Cdd:TIGR04523  177 LLEKEKLNIQKNIDKIKNKLLKLELLLSNLKKKIQKNKSLESQIS------ELKK------------QNNQLKDNIEKKQ 238
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 442628730   557 LIINQIKDKV--------------ENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKE 607
Cdd:TIGR04523  239 QEINEKTTEIsntqtqlnqlkdeqNKIKKQLSEKQKELEQNNKKIKELEKQLNQLKSEISDLNNQ 303
SH3_Tks5_4 cd12019
Fourth Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
783-833 2.58e-03

Fourth Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the fourth SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212952  Cd Length: 53  Bit Score: 36.88  E-value: 2.58e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVI-KKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12019     1 SYMTTSAYQKVQDSEISFPAGVEVEVLeKQESGWWYVRFGELEGWAPSHYLE 52
SH3_SH3RF1_2 cd11930
Second Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
1032-1079 2.62e-03

Second Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212863  Cd Length: 55  Bit Score: 37.28  E-value: 2.62e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1032 ALYPY----KAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11930     4 ALYDFevkdKEADKDCLPFAKDDILTVIRRVDENWAEGMLGDKIGIFPISYV 55
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
789-834 2.65e-03

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 37.06  E-value: 2.65e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  789 PYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTI--GSRTGMFPSNYVQK 834
Cdd:cd11785     7 PYPPQSEAELELKEGDIVFVHKKrEDGWFKGTLqrTGKTGLFPGSFVES 55
SH3_Sorbs1_2 cd11922
Second Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ...
959-1004 2.66e-03

Second Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212855 [Multi-domain]  Cd Length: 58  Bit Score: 37.28  E-value: 2.66e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 442628730  959 QLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYVKVLQ 1004
Cdd:cd11922    16 EMSFRKGERITLLRQVDENWYEGRIPGTSRQ---GIFPITYVDVIK 58
SH3_ARHGEF37_C2 cd11941
Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 ...
681-730 2.69e-03

Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 contains a RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. Its specific function is unknown. Its domain architecture is similar to the C-terminal half of DNMBP or Tuba, a cdc42-specific GEF that provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics, and plays an important role in regulating cell junction configuration. GEFs activate small GTPases by exchanging bound GDP for free GTP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212874  Cd Length: 57  Bit Score: 37.20  E-value: 2.69e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  681 AVYEFNARNAEEITFVPGD--IILVPLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd11941     4 AAYPFTARSKHEVSLQAGQpvTVLEPHDKKGSPEWSLVEVNGQRGYVPSSYL 55
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
797-833 2.78e-03

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 36.86  E-value: 2.78e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 442628730  797 DLSFSAGEMVMVIKKEG-EWWTGTIG---SRTGMFPSNYVQ 833
Cdd:cd11966    15 ELTFSEGEIIIVDGEEDkEWWIGHIDgepTRRGAFPVSFVH 55
SH3_Bem1p_2 cd11879
Second Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this ...
1031-1079 2.79e-03

Second Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this subfamily bear similarity to Saccharomyces cerevisiae Bem1p, containing two Src Homology 3 (SH3) domains at the N-terminus, a central PX domain, and a C-terminal PB1 domain. Bem1p is a scaffolding protein that is critical for proper Cdc42p activation during bud formation in yeast. During budding and mating, Bem1p migrates to the plasma membrane where it can serve as an adaptor for Cdc42p and some other proteins. Bem1p also functions as an effector of the G1 cyclin Cln3p and the cyclin-dependent kinase Cdc28p in promoting vacuolar fusion. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212812 [Multi-domain]  Cd Length: 56  Bit Score: 36.93  E-value: 2.79e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG---ELNGLSGLFPSNYV 1079
Cdd:cd11879     3 IVLYDFKAERPDELDAKAGDAIIICAHSNYEWFVAkpiGRLGGPGLIPVSFV 54
Casc1_N pfam15927
Cancer susceptibility candidate 1 N-terminus; This presumed domain is functionally ...
374-475 2.79e-03

Cancer susceptibility candidate 1 N-terminus; This presumed domain is functionally uncharacterized. This domain family is found in eukaryotes, and is approximately 200 amino acids in length. The family is found in association with pfam12366. There are two completely conserved residues (N and W) that may be functionally important.


Pssm-ID: 464947 [Multi-domain]  Cd Length: 201  Bit Score: 40.42  E-value: 2.79e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   374 EKARLEAERKQQEELERqlqRQREiemEKEEQRKRELEAKEAARKELEKQRQQEW---EQARIA----EMNAQKEREQER 446
Cdd:pfam15927    1 ARLREEEEERLRAEEEE---AERL---EEERREEEEEERLAAEQDRRAEELEELKhllEERKEAleklRAEAREEAEWER 74
                           90       100       110
                   ....*....|....*....|....*....|....*...
gi 442628730   447 VLK---------QKAHNTQLNVELSTLNEKIKELSQRI 475
Cdd:pfam15927   75 YMRcdglpdprdEQEINTFISLWREEEEEDIDEVMETC 112
RRP36 pfam06102
rRNA biogenesis protein RRP36; RRP36 is involved in the early processing steps of the pre-rRNA.
372-432 2.80e-03

rRNA biogenesis protein RRP36; RRP36 is involved in the early processing steps of the pre-rRNA.


Pssm-ID: 461829 [Multi-domain]  Cd Length: 158  Bit Score: 39.46  E-value: 2.80e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730   372 KREKARLEAE------RKQQEELERQLQRQreiemekeEQRKRELEAKEAARKELEKQRQQEWEQAR 432
Cdd:pfam06102   59 KKEIEELKKQlkktkdPEEKEELKRTLQSM--------ESRLKAKKRKDREREVLKEHKKEEKEKVK 117
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
341-613 2.82e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 41.68  E-value: 2.82e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  341 QAELDRRRKIMEDQQRKEREERERKEREEADKREkaRLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARK-- 418
Cdd:COG4717   169 EAELAELQEELEELLEQLSLATEEELQDLAEELE--ELQQRLAELEEELEEAQEELEELEEELEQLENELEAAALEERlk 246
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  419 -------------------------------------------ELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNT 455
Cdd:COG4717   247 earlllliaaallallglggsllsliltiagvlflvlgllallFLLLAREKASLGKEAEELQALPALEELEEEELEELLA 326
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  456 QLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRdtSMSEMSQLKARIK-----------EQNAKLLQLTQER 524
Cdd:COG4717   327 ALGLPPDLSPEELLELLDRIEELQELLREAEELEEELQLEE--LEQEIAALLAEAGvedeeelraalEQAEEYQELKEEL 404
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  525 AKWEAK--SKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINT--NDVQMSELKAELSALITK 600
Cdd:COG4717   405 EELEEQleELLGELEELLEALDEEELEEELEELEEELEELEEELEELREELAELEAELEQleEDGELAELLQELEELKAE 484
                         330
                  ....*....|...
gi 442628730  601 CEDLYKEYDVQRT 613
Cdd:COG4717   485 LRELAEEWAALKL 497
SH3_Endophilin_B cd11802
Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, ...
946-999 2.95e-03

Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain two endophilin-B isoforms. Endophilin-B proteins are cytoplasmic proteins expressed mainly in the heart, placenta, and skeletal muscle. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212736 [Multi-domain]  Cd Length: 52  Bit Score: 36.88  E-value: 2.95e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMIR--KKTDSGWWEGElqakgRRRQIGWFPATY 999
Cdd:cd11802     2 ARVLYDYDAEDSTELSLLADEVITVYelPGMDEDYMMGE-----RGSQRGKVPVAY 52
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
372-593 3.01e-03

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 41.43  E-value: 3.01e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQK 451
Cdd:COG4372   121 QKERQDLEQQRKQLEAQIAELQSEIAEREEELKELEEQLESLQEELAALEQELQALSEAEAEQALDELLKEANRNAEKEE 200
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  452 AHNTQLNVELSTLNEKIKELSQRICDTRAG------VTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERA 525
Cdd:COG4372   201 ELAEAEKLIESLPRELAEELLEAKDSLEAKlglalsALLDALELEEDKEELLEEVILKEIEELELAILVEKDTEEEELEI 280
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  526 KWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDKVENISKEIESKKEDINTNDVQMSELKAE 593
Cdd:COG4372   281 AALELEALEEAALELKLLALLLNLAALSLIGALEDALLAALLELAKKLELALAILLAELADLLQLLLV 348
SHE3 pfam17078
SWI5-dependent HO expression protein 3; SWI5-dependent HO expression protein 3 (She3) is an ...
488-609 3.17e-03

SWI5-dependent HO expression protein 3; SWI5-dependent HO expression protein 3 (She3) is an RNA-binding protein that binds specific mRNAs, including the mRNA of Ash1, which is invalid in cell-fate determination. She3 acts as an adapter protein that docks the myosin motor Myo4p onto an Ash1-She2p ribonucleoprotein complex. She3 seems to bind to Myo4p and Shep2p via different domains.


Pssm-ID: 293683 [Multi-domain]  Cd Length: 228  Bit Score: 40.49  E-value: 3.17e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   488 VIDGMRTQRDTSMSEMSQLKarikEQNAKLLQLTQERAKWEAKSKASGAALGGENaqqEQLNAAFAHKQLIINQIKDKVE 567
Cdd:pfam17078    4 VIESLHDQIDALTKTNLQLT----VQSQNLLSKLEIAQQKESKFLENLASLKHEN---DNLSSMLNRKERRLKDLEDQLS 76
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|..
gi 442628730   568 NISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYD 609
Cdd:pfam17078   77 ELKNSYEELTESNKQLKKRLENSSASETTLEAELERLQIQYD 118
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
947-1001 3.25e-03

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 36.90  E-value: 3.25e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGelqAKGRRRQIGWFPATYVK 1001
Cdd:cd11780     3 RALYSYTPQNEDELELREGDIVYVMEKCDDGWFVG---TSERTGLFGTFPGNYVA 54
SH3_BAIAP2L1 cd11913
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, ...
678-729 3.25e-03

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, also called Insulin Receptor Tyrosine Kinase Substrate (IRTKS); BAIAP2L1 or IRTKS is widely expressed, serves as a substrate for the insulin receptor, and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. BAIAP2L1 expression leads to the formation of short actin bundles, distinct from filopodia-like protrusions induced by the expression of the related protein IRSp53. IRTKS mediates the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The SH3 domain of IRTKS has been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212846  Cd Length: 58  Bit Score: 36.82  E-value: 3.25e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 442628730  678 KYQAVYEFNARNAEE-ITFVPGDII--LVPLEQNaepGWLAGE--INGHTGWFPESY 729
Cdd:cd11913     2 KVKTIFPHTAGNNKTlLSFAQGDVItlLIPEEKD---GWLYGEhdTTKARGWFPSSY 55
SH3_ARHGEF16_26 cd11938
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ...
947-1001 3.26e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ARHGEF16, also called ephexin-4, acts as a GEF for RhoG, activating it by exchanging bound GDP for free GTP. RhoG is a small GTPase that is a crucial regulator of Rac in migrating cells. ARHGEF16 interacts directly with the ephrin receptor EphA2 and mediates cell migration and invasion in breast cancer cells by activating RhoG. ARHGEF26, also called SGEF (SH3 domain-containing guanine exchange factor), also activates RhoG. It is highly expressed in liver and may play a role in regulating membrane dynamics. ARHGEF16 and ARHGEF26 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212871  Cd Length: 55  Bit Score: 36.75  E-value: 3.26e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 442628730  947 QVIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11938     3 EIIKAYTAKQPDELSLQQADVVLVLQTESDGWYYGERLRDGER---GWFPSSCAK 54
46 PHA02562
endonuclease subunit; Provisional
424-609 3.31e-03

endonuclease subunit; Provisional


Pssm-ID: 222878 [Multi-domain]  Cd Length: 562  Bit Score: 41.54  E-value: 3.31e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  424 RQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDgmRTQRDTSMSE- 502
Cdd:PHA02562  206 EQRKKNGENIARKQNKYDELVEEAKTIKAEIEELTDELLNLVMDIEDPSAALNKLNTAAAKIKSKIE--QFQKVIKMYEk 283
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  503 -----------------MSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAAlggENAQQEQLNAAFAHKQLIINQIKdK 565
Cdd:PHA02562  284 ggvcptctqqisegpdrITKIKDKLKELQHSLEKLDTAIDELEEIMDEFNEQ---SKKLLELKNKISTNKQSLITLVD-K 359
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....
gi 442628730  566 VENISKEIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYD 609
Cdd:PHA02562  360 AKKVKAAIEELQAEFVDNAEELAKLQDELDKIVKTKSELVKEKY 403
SH3_Nck_1 cd11765
First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
783-832 3.33e-03

First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The first SH3 domain of Nck proteins preferentially binds the PxxDY sequence, which is present in the CD3e cytoplasmic tail. This binding inhibits phosphorylation by Src kinases, resulting in the downregulation of TCR surface expression. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212699 [Multi-domain]  Cd Length: 51  Bit Score: 36.63  E-value: 3.33e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTGTIGS-RTGMFPSNYV 832
Cdd:cd11765     1 YVVAKYDYTAQGDQELSIKKNEKLTLLDDSKHWWKVQNSSnQTGYVPSNYV 51
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
952-1000 3.46e-03

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 36.70  E-value: 3.46e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQakGRrrqIGWFPATYV 1000
Cdd:cd11951     8 FSAEDPSQLSFRRGDIIEVLDCPDPNWWRGRIS--GR---VGFFPRNYV 51
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
948-1001 3.82e-03

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 36.67  E-value: 3.82e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  948 VIAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKgrrrqIGWFPATYVK 1001
Cdd:cd12016     5 TTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQGK-----EGWAPATYLK 53
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
679-732 3.83e-03

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 36.52  E-value: 3.83e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVpLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd11770     2 YEALSDFQAEQEGDLSFKKGEVLRI-ISKRADGWWLAENSKGNRGLVPKTYLKV 54
SH3_MYO15B cd12068
Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its ...
783-833 3.97e-03

Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its similarity with myosin XVa. It is a transcribed and unprocessed pseudogene whose predicted amino acid sequence contains mutated or deleted amino acid residues that are normally conserved and important for myosin function. The related myosin XVa is important for normal growth of mechanosensory stereocilia of inner ear hair cells. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 213001  Cd Length: 55  Bit Score: 36.39  E-value: 3.97e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEG---EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12068     1 YVVALRSYITDDKSLLSFHRGDLIKLLPMAGlepGWQFGSTGGRSGLFPADIVQ 54
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
951-998 4.07e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 36.26  E-value: 4.07e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  951 PYEATSTEQLSLTRGQLIMIRKKTDSGWWEGelQAKGRrrqIGWFPAT 998
Cdd:cd11832     7 SYSPQEEGEISLHKGDRVKVLSIGEGGFWEG--SVRGR---TGWFPSD 49
SH3_SKAP2 cd12045
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called ...
679-730 4.17e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called SKAP55-Related (SKAP55R) or SKAP55 homolog (SKAP-HOM or SKAP55-HOM), is an immune cell-specific adaptor protein that plays an important role in adhesion and migration of B-cells and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), YopH, SHPS1, and HPK1. SKAP2 has also been identified as a substrate for lymphoid-specific tyrosine phosphatase (Lyp), which has been implicated in a wide variety of autoimmune diseases. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. Like SKAP1, SKAP2 is expected to bind primarily to a proline-rich region of ADAP through its SH3 domain; its degradation may be regulated by ADAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212978  Cd Length: 53  Bit Score: 36.42  E-value: 4.17e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEPGWLAGEINGHTGWFPESYV 730
Cdd:cd12045     2 YQGLWDCTGDQPDELSFKRGDTIYILSKEYNRFGWWVGEMKGTIGLVPKAYI 53
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
679-732 4.24e-03

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 36.46  E-value: 4.24e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  679 YQAVYEFNARNAEEITFVPGDIILVPLEQNAEpgWLAGEINGHTGWFPESYVEK 732
Cdd:cd11985     2 YVALYKFLPQENNDLPLQPGDRVMVVDDSNED--WWKGKSGDRVGFFPANFVQR 53
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
952-1000 4.36e-03

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 36.23  E-value: 4.36e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELqaKGRRrqiGWFPATYV 1000
Cdd:cd11809     8 YTGRSERELSFKKGDSLTLYRQVSDDWWRGQL--NGQD---GLVPHKYI 51
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
330-537 4.42e-03

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 40.52  E-value: 4.42e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRE 409
Cdd:COG4942    26 EAELEQLQQEIAELEKELAALKKEEKALLKQLAALERRIAALARRIRALEQELAALEAELAELEKEIAELRAELEAQKEE 105
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  410 L-----------------------EAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERVLKQKAHNTQLNVELSTLNE 466
Cdd:COG4942   106 LaellralyrlgrqpplalllspeDFLDAVRRLQYLKYLAPARREQAEELRADLAELAALRAELEAERAELEALLAELEE 185
                         170       180       190       200       210       220       230
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 442628730  467 KIKELSQRIcdtragvTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAA 537
Cdd:COG4942   186 ERAALEALK-------AERQKLLARLEKELAELAAELAELQQEAEELEALIARLEAEAAAAAERTPAAGFA 249
SH3_ARHGAP32_33 cd11835
Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; ...
946-1000 4.50e-03

Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; Members of this family contain N-terminal PX and Src Homology 3 (SH3) domains, a central Rho GAP domain, and C-terminal extensions. RhoGAPs (or ARHGAPs) bind to Rho proteins and enhance the hydrolysis rates of bound GTP. ARHGAP32 is also called RICS, PX-RICS, p250GAP, or p200RhoGAP. It is a Rho GTPase-activating protein for Cdc42 and Rac1, and is implicated in the regulation of postsynaptic signaling and neurite outgrowth. PX-RICS, a variant of RICS that contain PX and SH3 domains, is the main isoform expressed during neural development. It is involved in neural functions including axon and dendrite extension, postnatal remodeling, and fine-tuning of neural circuits during early brain development. ARHGAP33, also called sorting nexin 26 or TCGAP (Tc10/CDC42 GTPase-activating protein), is widely expressed in the brain where it is involved in regulating the outgrowth of axons and dendrites and is regulated by the protein tyrosine kinase Fyn. It is translocated to the plasma membrane in adipocytes in response to insulin and may be involved in the regulation of insulin-stimulated glucose transport. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212769 [Multi-domain]  Cd Length: 54  Bit Score: 36.27  E-value: 4.50e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  946 AQVIAPYEATSTEQLSLTRGQLIMI---RKKTDSGWWEGElqakgRRRQIGWFPATYV 1000
Cdd:cd11835     2 AHVIKRYTAQAPDELSLEVGDIVSVidmPPPEESTWWRGK-----KGFQVGFFPSECV 54
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
373-526 4.62e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 40.91  E-value: 4.62e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  373 REKARLEAERKQQEELERQLQRQREIEMEKEEQ------RKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQER 446
Cdd:COG4717   354 REAEELEEELQLEELEQEIAALLAEAGVEDEEElraaleQAEEYQELKEELEELEEQLEELLGELEELLEALDEEELEEE 433
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  447 VLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAGVTnvktvIDGMRTQRDTSMSEMSQLKARIKEQNA--KLLQLTQER 524
Cdd:COG4717   434 LEELEEELEELEEELEELREELAELEAELEQLEEDGE-----LAELLQELEELKAELRELAEEWAALKLalELLEEAREE 508

                  ..
gi 442628730  525 AK 526
Cdd:COG4717   509 YR 510
SH3_Bem1p_1 cd11878
First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this ...
786-831 4.70e-03

First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this subfamily bear similarity to Saccharomyces cerevisiae Bem1p, containing two Src Homology 3 (SH3) domains at the N-terminus, a central PX domain, and a C-terminal PB1 domain. Bem1p is a scaffolding protein that is critical for proper Cdc42p activation during bud formation in yeast. During budding and mating, Bem1p migrates to the plasma membrane where it can serve as an adaptor for Cdc42p and some other proteins. Bem1p also functions as an effector of the G1 cyclin Cln3p and the cyclin-dependent kinase Cdc28p in promoting vacuolar fusion. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212811 [Multi-domain]  Cd Length: 54  Bit Score: 36.11  E-value: 4.70e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVIKKE--GEWW--TGTIGSRTGMFPSNY 831
Cdd:cd11878     4 ALYDYRAQTPGELSFSKGDFFHVIGEEdqGEWYeaTNPVTGKRGLVPKSY 53
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
952-1003 4.77e-03

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 36.47  E-value: 4.77e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  952 YEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAkgrrrQIGWFPATYVKVL 1003
Cdd:cd11803     9 FEPENEGELGFKEGDIITLTNQIDENWYEGMVNG-----QSGFFPVNYVEVL 55
SH3_Sorbs2_2 cd11923
Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1029-1079 4.89e-03

Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212856 [Multi-domain]  Cd Length: 57  Bit Score: 36.43  E-value: 4.89e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730 1029 KVIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLS--GLFPSNYV 1079
Cdd:cd11923     2 EAVAKYNFNADTNVELSLRKGDRVVLLKQVDQNWYEGKIPGTNrqGIFPVSYV 54
SH3_GRAF cd12064
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also ...
786-833 4.92e-03

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also called Rho GTPase activating protein 26 (ARHGAP26), Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with activity towards RhoA and Cdc42 and is only weakly active towards Rac1. It influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase (FAK), which is a critical component of integrin signaling. It is essential for the major clathrin-independent endocytic pathway mediated by pleiomorphic membranes. GRAF contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212997  Cd Length: 56  Bit Score: 36.25  E-value: 4.92e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  786 AAYPYESAEEGDLSFSAGEMVMVI--KKEGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd12064     5 ALYACKAEHDSELSFTAGTVFDNVhpSQEPGWLEGTLNGKTGLIPENYVE 54
Spc7 smart00787
Spc7 kinetochore protein; This domain is found in cell division proteins which are required ...
372-538 4.96e-03

Spc7 kinetochore protein; This domain is found in cell division proteins which are required for kinetochore-spindle association.


Pssm-ID: 197874 [Multi-domain]  Cd Length: 312  Bit Score: 40.39  E-value: 4.96e-03
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    372 KREKARLEAE-----------RKQQEELERQLQRQREIEMEKEEQRKRELeakEAARKELEKQRQQeweqariaemNAQK 440
Cdd:smart00787  157 KEDYKLLMKElellnsikpklRDRKDALEEELRQLKQLEDELEDCDPTEL---DRAKEKLKKLLQE----------IMIK 223
                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    441 EREQERVLKQKAhntQLNVELSTLNEKIKELSQRIcdtrAGVTNVKTVIDGMrtqrdtSMSEMSQLKARikeqnaklLQL 520
Cdd:smart00787  224 VKKLEELEEELQ---ELESKIEDLTNKKSELNTEI----AEAEKKLEQCRGF------TFKEIEKLKEQ--------LKL 282
                           170
                    ....*....|....*...
gi 442628730    521 TQERAKWeAKSKASGAAL 538
Cdd:smart00787  283 LQSLTGW-KITKLSGNTL 299
PRK12704 PRK12704
phosphodiesterase; Provisional
330-444 5.01e-03

phosphodiesterase; Provisional


Pssm-ID: 237177 [Multi-domain]  Cd Length: 520  Bit Score: 40.92  E-value: 5.01e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKE-NYVKGQAELDRRRKIMEDQQRKEREERerkereeaDKREK-ARLEAERKQQEE-LERQLQ--RQREIEMEKEE 404
Cdd:PRK12704   45 EEAKKEaEAIKKEALLEAKEEIHKLRNEFEKELR--------ERRNElQKLEKRLLQKEEnLDRKLEllEKREEELEKKE 116
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....
gi 442628730  405 ----QRKRELEAKEAARKELEKQRQQEWEqaRIAEMNAQKEREQ 444
Cdd:PRK12704  117 keleQKQQELEKKEEELEELIEEQLQELE--RISGLTAEEAKEI 158
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
494-629 5.27e-03

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 40.28  E-value: 5.27e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  494 TQRDTSMSEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASgaalggeNAQQEQLNAafahkqliinQIKDKVENISKEI 573
Cdd:COG1340     1 SKTDELSSSLEELEEKIEELREEIEELKEKRDELNEELKEL-------AEKRDELNA----------QVKELREEAQELR 63
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  574 ESKKEDINtndvQMSELKAELSALITKCEDLYKEYDVQRTSVLELKYNRKNETSVS 629
Cdd:COG1340    64 EKRDELNE----KVKELKEERDELNEKLNELREELDELRKELAELNKAGGSIDKLR 115
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
782-834 5.45e-03

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 36.28  E-value: 5.45e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  782 EYYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE-WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd12016     1 EKYITTQAYKAENEDEIGFETGVVVEVIQKNLDgWWKIRYQGKEGWAPATYLKK 54
PRK07735 PRK07735
NADH-quinone oxidoreductase subunit C;
373-553 5.47e-03

NADH-quinone oxidoreductase subunit C;


Pssm-ID: 236081 [Multi-domain]  Cd Length: 430  Bit Score: 40.35  E-value: 5.47e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  373 REKARLEAERKQQEELERQLQRQREIE--------MEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKER-E 443
Cdd:PRK07735   19 KEEARKRLVAKHGAEISKLEEENREKEkalpknddMTIEEAKRRAAAAAKAKAAALAKQKREGTEEVTEEEKAKAKAKaA 98
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  444 QERVLKQKAHNTQLNVELSTLNEKIKELSQRICDTRAgvtnvKTVIDGMRTQRDTSMSEMSQLKARIKEQNA--KLLQLT 521
Cdd:PRK07735   99 AAAKAKAAALAKQKREGTEEVTEEEKAAAKAKAAAAA-----KAKAAALAKQKREGTEEVTEEEEETDKEKAkaKAAAAA 173
                         170       180       190
                  ....*....|....*....|....*....|..
gi 442628730  522 QERAKWEAKSKASGAALGGENAQQEQLNAAFA 553
Cdd:PRK07735  174 KAKAAALAKQKAAEAGEGTEEVTEEEKAKAKA 205
SH3_DOCK_AB cd11872
Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are ...
783-833 6.10e-03

Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are atypical guanine nucleotide exchange factors (GEFs) that lack the conventional Dbl homology (DH) domain. They are divided into four classes (A-D) based on sequence similarity and domain architecture: class A includes Dock1, 2 and 5; class B includes Dock3 and 4; class C includes Dock6, 7, and 8; and class D includes Dock9, 10 and 11. All DOCKs contain two homology domains: the DHR-1 (Dock homology region-1), also called CZH1 (CED-5, Dock180, and MBC-zizimin homology 1), and DHR-2 (also called CZH2 or Docker). The DHR-1 domain binds phosphatidylinositol-3,4,5-triphosphate while DHR-2 contains the catalytic activity for Rac and/or Cdc42. This subfamily includes only Class A and B DOCKs, which also contain an SH3 domain at the N-terminal region and a PxxP motif at the C-terminus. Class A/B DOCKs are mostly specific GEFs for Rac, except Dock4 which activates the Ras family GTPase Rap1, probably indirectly through interaction with Rap regulatory proteins. The SH3 domain of class A/B DOCKs have been shown to bind Elmo, a scaffold protein that promotes GEF activity of DOCKs by releasing DHR-2 autoinhibition by the intramolecular SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212805 [Multi-domain]  Cd Length: 56  Bit Score: 36.02  E-value: 6.10e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGEWWTG-TIGSRT--GMFPSNYVQ 833
Cdd:cd11872     1 YGVAIYNFQGDGEHQLSLQVGDTVQILEECEGWYRGfSLRNKSlkGIFPKSYVH 54
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
501-619 6.19e-03

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 39.52  E-value: 6.19e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  501 SEMSQLKARIKEQNAKLLQLTQERAKWEAKSKASGAALGGENAQQEQLNAAFAHKQLIINQIKDK---------VENISK 571
Cdd:COG1579    17 SELDRLEHRLKELPAELAELEDELAALEARLEAAKTELEDLEKEIKRLELEIEEVEARIKKYEEQlgnvrnnkeYEALQK 96
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730  572 EIESKKEDINTNDVQMSELKAELSALITKCEDLYKEYDVQRTSVLELK 619
Cdd:COG1579    97 EIESLKRRISDLEDEILELMERIEELEEELAELEAELAELEAELEEKK 144
Pinin_SDK_memA pfam04696
pinin/SDK/memA/ protein conserved region; Members of this family have very varied ...
372-440 6.24e-03

pinin/SDK/memA/ protein conserved region; Members of this family have very varied localizations within the eukaryotic cell. pinin is known to localize at the desmosomes and is implicated in anchoring intermediate filaments to the desmosomal plaque. SDK2/3 is a dynamically localized nuclear protein thought to be involved in modulation of alternative pre-mRNA splicing. memA is a tumour marker preferentially expressed in human melanoma cell lines. A common feature of the members of this family is that they may all participate in regulating protein-protein interactions.


Pssm-ID: 461396 [Multi-domain]  Cd Length: 130  Bit Score: 38.04  E-value: 6.24e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQ-QEWEQARIAEMNAQK 440
Cdd:pfam04696   30 EKEERRAEIEKRLEEKAKQEKEELEERKREEREELFEERRAEQIELRALEEKLElKELMETWHENLKALA 99
PRK13709 PRK13709
conjugal transfer nickase/helicase TraI; Provisional
235-442 6.38e-03

conjugal transfer nickase/helicase TraI; Provisional


Pssm-ID: 237478 [Multi-domain]  Cd Length: 1747  Bit Score: 40.93  E-value: 6.38e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  235 LSDIDGDGRLNCDEFILAMFLcEKAMAGEKIPVTLPQEwvppNLRKIKSRPGSvsGVVSRPGSQPASRHASVSSqSGVGV 314
Cdd:PRK13709 1550 LRGFSGEGRVKGSEDAQFVAL-QGSRNGESLLADNMQD----GVRIARDNPDS--GVVVRIAGEGRPWNPGAIT-GGRVW 1621
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  315 VDADPTAGLPGQTSFEDKRKENYVKGQAELDRRRKiMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQR 394
Cdd:PRK13709 1622 GDIPDNSVQPGAGNGEPVTAEVLAQRQAEEAIRRE-TERRADEIVRKMAENKPDLPDGKTEQAVRDIAGQERDRAAISER 1700
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730  395 QREIEMEKEEQRKRELEA-KEAARKELEKQRQQEWEQARIAEMnaQKER 442
Cdd:PRK13709 1701 EAALPESVLREPQREREAvREVARENLLRERLQQMERDMVRDL--QKEK 1747
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
1036-1081 6.42e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 35.92  E-value: 6.42e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1036 YKAQNDDELSFDKDDIISVLGRDEPEWWRGEL--NGLSGLFPSNYVGP 1081
Cdd:cd11940     8 YKAQENDELTLEKADIIMVRQQSSDGWLEGVRlsDGERGWFPQSHVEE 55
DUF4659 pfam15558
Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins ...
382-458 6.54e-03

Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins in this family are typically between 427 and 674 amino acids in length. There are two completely conserved residues (D and I) that may be functionally important.


Pssm-ID: 464768 [Multi-domain]  Cd Length: 374  Bit Score: 40.02  E-value: 6.54e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   382 RKQQEELERQLQRQREIEMekEEQRKRELEAKEAA---RKELEKQRQQEWEQARIAEMnAQKEREQERVLKQKAHNTQLN 458
Cdd:pfam15558   16 RHKEEQRMRELQQQAALAW--EELRRRDQKRQETLereRRLLLQQSQEQWQAEKEQRK-ARLGREERRRADRREKQVIEK 92
PKK pfam12474
Polo kinase kinase; This domain family is found in eukaryotes, and is approximately 140 amino ...
372-450 6.57e-03

Polo kinase kinase; This domain family is found in eukaryotes, and is approximately 140 amino acids in length. The family is found in association with pfam00069. Polo-like kinase 1 (Plx1) is essential during mitosis for the activation of Cdc25C, for spindle assembly, and for cyclin B degradation. This family is Polo kinase kinase (PKK) which phosphorylates Polo kinase and Polo-like kinase to activate them. PKK is a serine/threonine kinase.


Pssm-ID: 463600 [Multi-domain]  Cd Length: 139  Bit Score: 38.31  E-value: 6.57e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730   372 KREKARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARiAEMNAQKErEQERVLKQ 450
Cdd:pfam12474   50 RRLPKRIRAEQKKRLKMFRESLKQEKKELKQEVEKLPKFQRKEAKRQRKEELELEQKHEEL-EFLQAQSE-ALERELQQ 126
SH3_ARHGEF9 cd11975
Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also ...
1032-1079 6.79e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also called PEM2 or collybistin, selectively activates Cdc42 by exchanging bound GDP for free GTP. It is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. Mutations in the ARHGEF9 gene cause X-linked mental retardation with associated features like seizures, hyper-anxiety, aggressive behavior, and sensory hyperarousal. ARHGEF9 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212908  Cd Length: 62  Bit Score: 36.23  E-value: 6.79e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 442628730 1032 ALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11975     9 AVWDHVTMANRELAFKAGDVIKVLDASNKDWWWGQIDDEEGWFPASFV 56
SH3_SH3RF1_3 cd11926
Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ...
949-1000 6.85e-03

Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212859 [Multi-domain]  Cd Length: 55  Bit Score: 36.10  E-value: 6.85e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 442628730  949 IAPYEATSTEQLSLTRGQLIMIRKKTDSGWWEGELQAKGRrrqIGWFPATYV 1000
Cdd:cd11926     5 IYPYTPRKEDELELRKGEMFLVFERCQDGWFKGTSMHTSK---IGVFPGNYV 53
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
679-732 6.89e-03

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 35.94  E-value: 6.89e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 442628730  679 YQAVYEFNARNAEEITFVPGDI--ILVPLEQNAEPGWLAGEINGHTGWFPESYVEK 732
Cdd:cd12141     2 YYAVYTFKARSPNELSVSANQRvrILEFSDLTGNKEWWLAEANGQKGYVPSNYIRK 57
SH3_Tec cd11905
Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a ...
1030-1079 6.95e-03

Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. It is more widely-expressed than other Tec subfamily kinases. Tec is found in endothelial cells, both B- and T-cells, and a variety of myeloid cells including mast cells, erythroid cells, platelets, macrophages and neutrophils. Tec is a key component of T-cell receptor (TCR) signaling, and is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212838 [Multi-domain]  Cd Length: 56  Bit Score: 35.95  E-value: 6.95e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 442628730 1030 VIALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRG-ELNGLSGLFPSNYV 1079
Cdd:cd11905     3 VVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWWKArDKYGKEGYIPSNYV 53
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
379-625 7.05e-03

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 40.41  E-value: 7.05e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  379 EAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAARKELEK---------QRQQEWE--QARIAEMNAQK-EREQER 446
Cdd:PRK02224  195 QIEEKEEKDLHERLNGLESELAELDEEIERYEEQREQARETRDEadevleeheERREELEtlEAEIEDLRETIaETERER 274
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  447 vlkqkahnTQLNVELSTLNEKIKELSQRICDTRAGVTNVKTVIDGMRTQRDTSMSEMSQLKARIKEQnakllQLTQERAK 526
Cdd:PRK02224  275 --------EELAEEVRDLRERLEELEEERDDLLAEAGLDDADAEAVEARREELEDRDEELRDRLEEC-----RVAAQAHN 341
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  527 WEAKSKASGAALGGENAQQEQLNAAFAHKQL-----IINQIKDKVENISKEIESKKEDINTNDVQMSELKAELsalitkc 601
Cdd:PRK02224  342 EEAESLREDADDLEERAEELREEAAELESELeeareAVEDRREEIEELEEEIEELRERFGDAPVDLGNAEDFL------- 414
                         250       260
                  ....*....|....*....|....
gi 442628730  602 EDLYKEYDVQRTSVLELKYNRKNE 625
Cdd:PRK02224  415 EELREERDELREREAELEATLRTA 438
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
330-438 7.16e-03

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 39.87  E-value: 7.16e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  330 EDKRKENYVKGQAE-LDRRRKIMEDQQrkereererkereeadKREKARLEAERKQQEELERQLQRQREIEMEK-EEQRK 407
Cdd:cd16269   195 EKEKEIEAERAKAEaAEQERKLLEEQQ----------------RELEQKLEDQERSYEEHLRQLKEKMEEERENlLKEQE 258
                          90       100       110
                  ....*....|....*....|....*....|.
gi 442628730  408 RELEAKEAARKELEKQRQQEWEQARIAEMNA 438
Cdd:cd16269   259 RALESKLKEQEALLEEGFKEQAELLQEEIRS 289
EmrA COG1566
Multidrug resistance efflux pump EmrA [Defense mechanisms];
375-475 7.25e-03

Multidrug resistance efflux pump EmrA [Defense mechanisms];


Pssm-ID: 441174 [Multi-domain]  Cd Length: 331  Bit Score: 40.03  E-value: 7.25e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  375 KARLEAERKQQEELERQLQRQREIEMEKEEQRKRELEAKEAaRKELEKQR---------QQEWEQARIAEMNAQKEREQ- 444
Cdd:COG1566    89 EAQLAAAEAQLARLEAELGAEAEIAAAEAQLAAAQAQLDLA-QRELERYQalykkgavsQQELDEARAALDAAQAQLEAa 167
                          90       100       110
                  ....*....|....*....|....*....|.
gi 442628730  445 ERVLKQKAHNTQLNVELSTLNEKIKELSQRI 475
Cdd:COG1566   168 QAQLAQAQAGLREEEELAAAQAQVAQAEAAL 198
GBP_C pfam02841
Guanylate-binding protein, C-terminal domain; Transcription of the anti-viral ...
372-471 7.67e-03

Guanylate-binding protein, C-terminal domain; Transcription of the anti-viral guanylate-binding protein (GBP) is induced by interferon-gamma during macrophage induction. This family contains GBP1 and GPB2, both GTPases capable of binding GTP, GDP and GMP.


Pssm-ID: 460721 [Multi-domain]  Cd Length: 297  Bit Score: 39.58  E-value: 7.67e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   372 KREKARLEAERKQQEELERQLQRQreieMEKEEQRkreleakeaarkeleKQRQQEWeqariaeMNAQKEREQERVLKQK 451
Cdd:pfam02841  228 KEEEQMMEAQERSYQEHVKQLIEK----MEAEREQ---------------LLAEQER-------MLEHKLQEQEELLKEG 281
                           90       100
                   ....*....|....*....|
gi 442628730   452 AHNtqlnvELSTLNEKIKEL 471
Cdd:pfam02841  282 FKT-----EAESLQKEIQDL 296
SH3_SKAP1 cd12044
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 ...
783-832 7.69e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 (Src kinase-associated protein of 55kDa), is an immune cell-specific adaptor protein that plays an important role in T-cell adhesion, migration, and integrin clustering. It is expressed exclusively in T-lymphocytes, mast cells, and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), Fyn, Riam, RapL, and RasGRP. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212977  Cd Length: 53  Bit Score: 35.60  E-value: 7.69e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNYV 832
Cdd:cd12044     1 YYQGLWDCFGDNPDELSFQRGDLIYILSKEYNmygWWVGELNGIVGIVPKDYL 53
OmpH smart00935
Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH ...
370-475 7.95e-03

Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH among others. Skp (OmpH) has been characterized as a molecular chaperone that interacts with unfolded proteins as they emerge in the periplasm from the Sec translocation machinery.


Pssm-ID: 214922 [Multi-domain]  Cd Length: 140  Bit Score: 37.95  E-value: 7.95e-03
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730    370 ADKREKARLEAERKQ-QEELErqlQRQREIEMEKEEQRKRELEAKEAARKELEKQRQQEWEQARIAEMNAQKEREQERvl 448
Cdd:smart00935   15 AGKAAQKQLEKEFKKrQAELE---KLEKELQKLKEKLQKDAATLSEAAREKKEKELQKKVQEFQRKQQKLQQDLQKRQ-- 89
                            90       100
                    ....*....|....*....|....*..
gi 442628730    449 kqkahntqlNVELSTLNEKIKELSQRI 475
Cdd:smart00935   90 ---------QEELQKILDKINKAIKEV 107
tolA_full TIGR02794
TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the ...
341-452 8.29e-03

TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis]


Pssm-ID: 274303 [Multi-domain]  Cd Length: 346  Bit Score: 39.83  E-value: 8.29e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730   341 QAELDRRRKIMEDQQRKEREERERKEREEADKREKARLEAERKQQEELERQLQRQREIEmekEEQRKRELEAkEAARKEL 420
Cdd:TIGR02794   70 QKKLEQQAEEAEKQRAAEQARQKELEQRAAAEKAAKQAEQAAKQAEEKQKQAEEAKAKQ---AAEAKAKAEA-EAERKAK 145
                           90       100       110
                   ....*....|....*....|....*....|..
gi 442628730   421 EKQRQQEwEQARIAEMNAQKEREQERVLKQKA 452
Cdd:TIGR02794  146 EEAAKQA-EEEAKAKAAAEAKKKAEEAKKKAE 176
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
785-833 8.45e-03

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 35.58  E-value: 8.45e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11870     3 VALHRYEAQGPEDLGFREGDTIDVLSEvNEAWLEGHSDGRVGIFPKCFVV 52
SH3_BAIAP2L1 cd11913
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, ...
947-1001 8.72e-03

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, also called Insulin Receptor Tyrosine Kinase Substrate (IRTKS); BAIAP2L1 or IRTKS is widely expressed, serves as a substrate for the insulin receptor, and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. BAIAP2L1 expression leads to the formation of short actin bundles, distinct from filopodia-like protrusions induced by the expression of the related protein IRSp53. IRTKS mediates the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The SH3 domain of IRTKS has been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212846  Cd Length: 58  Bit Score: 35.66  E-value: 8.72e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  947 QVIAPYEATSTE-QLSLTRGQLI--MIRKKTDsGWWEGELQAKGRRrqiGWFPATYVK 1001
Cdd:cd11913     4 KTIFPHTAGNNKtLLSFAQGDVItlLIPEEKD-GWLYGEHDTTKAR---GWFPSSYTR 57
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
317-625 9.02e-03

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 40.02  E-value: 9.02e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  317 ADPTAGLPGQTSFEDKRKENYVKGQAELDRRRKIMED---QQRKEREERERKEREEADKREKARLEAERKQQE--ELERQ 391
Cdd:PRK02224  292 EEERDDLLAEAGLDDADAEAVEARREELEDRDEELRDrleECRVAAQAHNEEAESLREDADDLEERAEELREEaaELESE 371
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  392 LQ-----------RQREIEMEKEEQRKR------ELEAKEAARKELEKQRQQEWEqaRIAEMNAQKEREQERVLKQKA-- 452
Cdd:PRK02224  372 LEeareavedrreEIEELEEEIEELRERfgdapvDLGNAEDFLEELREERDELRE--REAELEATLRTARERVEEAEAll 449
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  453 --------------------------HNTQLNVELSTLNEKIKELSQRIcDTRAGVTNVKTVIDGMRTQRDTSMSEMSQL 506
Cdd:PRK02224  450 eagkcpecgqpvegsphvetieedreRVEELEAELEDLEEEVEEVEERL-ERAEDLVEAEDRIERLEERREDLEELIAER 528
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  507 KARIKEQNAKLLQLTQERAKWEAKskasgaALGGENAQQEQLNAAFAHKQlIINQIKDKVENISKEIESkKEDINTNDVQ 586
Cdd:PRK02224  529 RETIEEKRERAEELRERAAELEAE------AEEKREAAAEAEEEAEEARE-EVAELNSKLAELKERIES-LERIRTLLAA 600
                         330       340       350
                  ....*....|....*....|....*....|....*....
gi 442628730  587 MSELKAELSALITKCEDLyKEYDVQRTSVLELKYNRKNE 625
Cdd:PRK02224  601 IADAEDEIERLREKREAL-AELNDERRERLAEKRERKRE 638
SH3_DNMBP_N4 cd11797
Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
783-831 9.12e-03

Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP bind the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212731  Cd Length: 50  Bit Score: 35.48  E-value: 9.12e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 442628730  783 YYIAAYPYESAEEGDLSFSAGEMVMVIKK-EGEWWTGTIGSRTGMFPSNY 831
Cdd:cd11797     1 YGVALYRFQALEPNELDFEVGDRIRIIATlEDGWLEGELKGRRGIFPHRF 50
SH3_Shank2 cd11983
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 2; Shank2, also ...
1031-1079 9.14e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 2; Shank2, also called ProSAP1 (Proline-rich synapse-associated protein 1) or CortBP1 (Cortactin-binding protein 1), is found in neurons, glia, endocrine cells, liver, and kidney. It plays a role in regulating dendritic spine volume and branching and postsynaptic clustering. Mutations in the Shank2 gene are associated with autism spectrum disorder and mental retardation. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212916  Cd Length: 52  Bit Score: 35.29  E-value: 9.14e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 442628730 1031 IALYPYKAQNDDELSFDKDDIISVLGRDEPEWWRGELNGLSGLFPSNYV 1079
Cdd:cd11983     4 VVVKSYQPQVEGEIPLHKGDRVKVLSIGEGGFWEGSARGHVGWFPAECV 52
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
951-1003 9.54e-03

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 35.77  E-value: 9.54e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730  951 PYEATSTEQLSLTRGQLIMI-----RKKTDSGWWEGELQAKGRRrqiGWFPATYVKVL 1003
Cdd:cd11790    10 DYTAEDTDELTFEKGDVILVipfddPEEQDEGWLMGVKESTGCR---GVFPENFTERI 64
SH3_ASEF cd11973
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ...
771-833 9.62e-03

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ARHGEF4, exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli). GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF can activate Rac1 or Cdc42. Truncated ASEF, which is found in colorectal cancers, is constitutively active and has been shown to promote angiogenesis and cancer cell migration. ASEF contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212906 [Multi-domain]  Cd Length: 73  Bit Score: 36.15  E-value: 9.62e-03
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 442628730  771 ASADLTAAGDVEYYIAAYPYESAEEGDLSFSAGEMVMVIKKEG-EWWTGTIGSRTGMFPSNYVQ 833
Cdd:cd11973     7 AINELISDGSVVCAEALWDHVTMDDQELGFKAGDVIEVMDATNkEWWWGRVLDSEGWFPASFVR 70
PTZ00266 PTZ00266
NIMA-related protein kinase; Provisional
371-451 9.65e-03

NIMA-related protein kinase; Provisional


Pssm-ID: 173502 [Multi-domain]  Cd Length: 1021  Bit Score: 40.11  E-value: 9.65e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  371 DKREKARLEAERKQQEELERQLQRQREIEMEKEEQRKReleakeaarkeLEKQRQQEWEQARIAEMNAQKER-EQERVLK 449
Cdd:PTZ00266  433 DHAERARIEKENAHRKALEMKILEKKRIERLEREERER-----------LERERMERIERERLERERLERERlERDRLER 501

                  ..
gi 442628730  450 QK 451
Cdd:PTZ00266  502 DR 503
SH3_Intersectin2_4 cd11994
Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
680-733 9.66e-03

Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212927  Cd Length: 59  Bit Score: 35.68  E-value: 9.66e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 442628730  680 QAVYEFNARNAEEITFVPGDIILVpLEQNAEpGWLAGEING-----HTGWFPESYVEKL 733
Cdd:cd11994     3 QVTTAYVASGVEQLSLSPGQLILI-LKKNSS-GWWLGELQArgkkrQKGWFPASHVKLL 59
MARTX_Nterm NF012221
MARTX multifunctional-autoprocessing repeats-in-toxin holotoxin N-terminal region; This model ...
370-550 9.67e-03

MARTX multifunctional-autoprocessing repeats-in-toxin holotoxin N-terminal region; This model describes the N-terminal 1900 amino acids of MARTX family multifunctional-autoprocessing repeats-in-toxin holotoxins, which contain both repeat regions that facilitate their entry into eukaryotic target cells, and multiple effector domains.


Pssm-ID: 467957 [Multi-domain]  Cd Length: 1848  Bit Score: 40.20  E-value: 9.67e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  370 ADKRekaRLEAERKQQ----EELERQLQRQREIEMEKEEQRKRE--LEAKEAARKELEKQRQ---QEWEQARIAEMNAQK 440
Cdd:NF012221 1569 ADRQ---RLEQEKQQQlaaiSGSQSQLESTDQNALETNGQAQRDaiLEESRAVTKELTTLAQgldALDSQATYAGESGDQ 1645
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442628730  441 EREQ--ERVLKQKahNTQLNVELSTLNEKIKELSQRICDTRagvTNVKTVIdgmrtqrdtSMSEMSQLKArikEQNAKLL 518
Cdd:NF012221 1646 WRNPfaGGLLDRV--QEQLDDAKKISGKQLADAKQRHVDNQ---QKVKDAV---------AKSEAGVAQG---EQNQANA 1708
                         170       180       190
                  ....*....|....*....|....*....|..
gi 442628730  519 QLTQERAKWEAKSKASGAALGGENAQQEQLNA 550
Cdd:NF012221 1709 EQDIDDAKADAEKRKDDALAKQNEAQQAESDA 1740
CCDC47 pfam07946
PAT complex subunit CCDC47; This family represents CCDC47 proteins which are a component of ...
372-449 9.71e-03

PAT complex subunit CCDC47; This family represents CCDC47 proteins which are a component of the PAT complex, an endoplasmic reticulum (ER)-resident membrane multiprotein complex that facilitates multi-pass membrane proteins insertion into membranes. The PAT complex, formed by CCDC47 and Asterix proteins, acts as an intramembrane chaperone by directly interacting with nascent transmembrane domains (TMDs), releasing its substrates upon correct folding, and is needed for optimal biogenesis of multi-pass membrane proteins. CCDC47 is required to maintain the stability of Asterix. CCDC47 is associated with various membrane-associated processes and is component of a ribosome-associated ER translocon complex involved in multi-pass membrane protein transport into the ER membrane and biogenesis. It is also involved in the regulation of calcium ion homeostasis in the ER, being also required for proper protein degradation via the ERAD (ER-associated degradation) pathway.


Pssm-ID: 462322  Cd Length: 323  Bit Score: 39.47  E-value: 9.71e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 442628730   372 KREKARLEAERKQQEELERQlqRQREIEMEKEEQrKRelEAKEAARKELEKQRQQEWEqariaemnaqkEREQERVLK 449
Cdd:pfam07946  261 KAKKTREEEIEKIKKAAEEE--RAEEAQEKKEEA-KK--KEREEKLAKLSPEEQRKYE-----------EKERKKEQR 322
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
785-834 9.83e-03

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 35.76  E-value: 9.83e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 442628730  785 IAAYPYESAEEGDLSFSAGEMVMVIKKEGE---WWTGTIGSRTGMFPSNYVQK 834
Cdd:cd11977     4 VARYNFAARDMRELSLREGDVVRIYSRIGGdqgWWKGETNGRIGWFPSTYVEE 56
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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