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Conserved domains on  [gi|390980948|pdb|4A6H|C]
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Chain C, PHOSPHATIDYLINOSITOL 4,5-BISPHOSPHATE-BINDING PROTEIN SLM1

Protein Classification

SLM1 family PH domain-containing protein( domain architecture ID 10193163)

SLM1 family PH (pleckstrin homology) domain-containing protein, such as yeast phosphatidylinositol 4,5-bisphosphate-binding proteins SLM1 and SLM2, which are effectors of the TORC2- and calcineurin-signaling pathways and bind phosphatidylinositol 4,5-bisphosphate through their PH domains

CATH:  2.30.29.30
Gene Ontology:  GO:0035091
SCOP:  4002395

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
PH_Slm1 cd13311
Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 ...
6-118 1.14e-48

Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 (TORC2) signaling pathway. It plays a role in the regulation of actin organization and is a target of sphingolipid signaling during the heat shock response. Slm1 contains a single PH domain that binds PtdIns(4,5)P2, PtdIns(4)P, and dihydrosphingosine 1-phosphate (DHS-1P). Slm1 possesses two binding sites for anionic lipids. The non-canonical binding site of the PH domain of Slm1 is used for ligand binding, and it is proposed that beta-spectrin, Tiam1 and ArhGAP9 also have this type of phosphoinositide binding site. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


:

Pssm-ID: 270121  Cd Length: 110  Bit Score: 150.95  E-value: 1.14e-48
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        6 EIKSGFLERRSKFLKSYSKGYYVLTPN-FLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSspnstgsdAKFVLHA 84
Cdd:cd13311   3 PLISGILERKSKFLKSYSKGYYVLTPAgYLHEFKSSDRKKDPAPEMSLYLPECKIGAPSNKGSKS--------HKFILKG 74
                        90       100       110
                ....*....|....*....|....*....|....*.
4A6H_C       85 KQNGII--RRGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:cd13311  75 KDVGSGkfHRGHEWVFKAESHEEMMAWWEDIKELTK 110
 
Name Accession Description Interval E-value
PH_Slm1 cd13311
Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 ...
6-118 1.14e-48

Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 (TORC2) signaling pathway. It plays a role in the regulation of actin organization and is a target of sphingolipid signaling during the heat shock response. Slm1 contains a single PH domain that binds PtdIns(4,5)P2, PtdIns(4)P, and dihydrosphingosine 1-phosphate (DHS-1P). Slm1 possesses two binding sites for anionic lipids. The non-canonical binding site of the PH domain of Slm1 is used for ligand binding, and it is proposed that beta-spectrin, Tiam1 and ArhGAP9 also have this type of phosphoinositide binding site. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270121  Cd Length: 110  Bit Score: 150.95  E-value: 1.14e-48
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        6 EIKSGFLERRSKFLKSYSKGYYVLTPN-FLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSspnstgsdAKFVLHA 84
Cdd:cd13311   3 PLISGILERKSKFLKSYSKGYYVLTPAgYLHEFKSSDRKKDPAPEMSLYLPECKIGAPSNKGSKS--------HKFILKG 74
                        90       100       110
                ....*....|....*....|....*....|....*.
4A6H_C       85 KQNGII--RRGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:cd13311  75 KDVGSGkfHRGHEWVFKAESHEEMMAWWEDIKELTK 110
PH_20 pfam20399
PH domain; This entry represents a PH domain found in a variety of fungal proteins.
1-85 1.16e-29

PH domain; This entry represents a PH domain found in a variety of fungal proteins.


Pssm-ID: 466548  Cd Length: 84  Bit Score: 101.87  E-value: 1.16e-29
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C          1 DHPFT-EIKSGFLERRSKFLKSYSKGYYVLTPN-FLHEFKTADR-KKDLVPVMSLALSECTVTEHSRKNSTSSpnstgsd 77
Cdd:pfam20399   5 DSPLVkPIRAGYLERKSKYLKSYTEGYYVLTPAgFLHEFKSSDPfKTGQAPVFSLYLPECTLGPPSDPGSSSH------- 77

                  ....*...
4A6H_C         78 aKFVLHAK 85
Cdd:pfam20399  78 -KFHLKGK 84
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
7-118 1.04e-12

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.


Pssm-ID: 214574 [Multi-domain]  Cd Length: 102  Bit Score: 59.48  E-value: 1.04e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C           7 IKSGFLERRSK-FLKSYSKGYYVLTPNFLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSSPNStgsdakFVLHAK 85
Cdd:smart00233   2 IKEGWLYKKSGgGKKSWKKRYFVLFNSTLLYYKSKKDKKSYKPKGSIDLSGCTVREAPDPDSSKKPHC------FEIKTS 75
                           90       100       110
                   ....*....|....*....|....*....|...
4A6H_C          86 QngiirrGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:smart00233  76 D------RKTLLLQAESEEEREKWVEALRKAIA 102
 
Name Accession Description Interval E-value
PH_Slm1 cd13311
Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 ...
6-118 1.14e-48

Slm1 Pleckstrin homology (PH) domain; Slm1 is a component of the target of rapamycin complex 2 (TORC2) signaling pathway. It plays a role in the regulation of actin organization and is a target of sphingolipid signaling during the heat shock response. Slm1 contains a single PH domain that binds PtdIns(4,5)P2, PtdIns(4)P, and dihydrosphingosine 1-phosphate (DHS-1P). Slm1 possesses two binding sites for anionic lipids. The non-canonical binding site of the PH domain of Slm1 is used for ligand binding, and it is proposed that beta-spectrin, Tiam1 and ArhGAP9 also have this type of phosphoinositide binding site. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270121  Cd Length: 110  Bit Score: 150.95  E-value: 1.14e-48
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        6 EIKSGFLERRSKFLKSYSKGYYVLTPN-FLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSspnstgsdAKFVLHA 84
Cdd:cd13311   3 PLISGILERKSKFLKSYSKGYYVLTPAgYLHEFKSSDRKKDPAPEMSLYLPECKIGAPSNKGSKS--------HKFILKG 74
                        90       100       110
                ....*....|....*....|....*....|....*.
4A6H_C       85 KQNGII--RRGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:cd13311  75 KDVGSGkfHRGHEWVFKAESHEEMMAWWEDIKELTK 110
PH_20 pfam20399
PH domain; This entry represents a PH domain found in a variety of fungal proteins.
1-85 1.16e-29

PH domain; This entry represents a PH domain found in a variety of fungal proteins.


Pssm-ID: 466548  Cd Length: 84  Bit Score: 101.87  E-value: 1.16e-29
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C          1 DHPFT-EIKSGFLERRSKFLKSYSKGYYVLTPN-FLHEFKTADR-KKDLVPVMSLALSECTVTEHSRKNSTSSpnstgsd 77
Cdd:pfam20399   5 DSPLVkPIRAGYLERKSKYLKSYTEGYYVLTPAgFLHEFKSSDPfKTGQAPVFSLYLPECTLGPPSDPGSSSH------- 77

                  ....*...
4A6H_C         78 aKFVLHAK 85
Cdd:pfam20399  78 -KFHLKGK 84
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
7-118 1.04e-12

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.


Pssm-ID: 214574 [Multi-domain]  Cd Length: 102  Bit Score: 59.48  E-value: 1.04e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C           7 IKSGFLERRSK-FLKSYSKGYYVLTPNFLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSSPNStgsdakFVLHAK 85
Cdd:smart00233   2 IKEGWLYKKSGgGKKSWKKRYFVLFNSTLLYYKSKKDKKSYKPKGSIDLSGCTVREAPDPDSSKKPHC------FEIKTS 75
                           90       100       110
                   ....*....|....*....|....*....|...
4A6H_C          86 QngiirrGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:smart00233  76 D------RKTLLLQAESEEEREKWVEALRKAIA 102
PH pfam00169
PH domain; PH stands for pleckstrin homology.
7-118 5.75e-12

PH domain; PH stands for pleckstrin homology.


Pssm-ID: 459697 [Multi-domain]  Cd Length: 105  Bit Score: 57.57  E-value: 5.75e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C          7 IKSGFLERRSKFLK-SYSKGYYVLTPNFLHEFKTADRKKDLVPVMSLALSECTVTEHSRKNSTSSPNstgsdaKFVLHak 85
Cdd:pfam00169   2 VKEGWLLKKGGGKKkSWKKRYFVLFDGSLLYYKDDKSGKSKEPKGSISLSGCEVVEVVASDSPKRKF------CFELR-- 73
                          90       100       110
                  ....*....|....*....|....*....|...
4A6H_C         86 qNGIIRRGHNWVFKADSYESMMSWFDNLKILTS 118
Cdd:pfam00169  74 -TGERTGKRTYLLQAESEEERKDWIKAIQSAIR 105
PH_RhoGap25-like cd13263
Rho GTPase activating protein 25 and related proteins Pleckstrin homology (PH) domain; ...
7-114 2.02e-06

Rho GTPase activating protein 25 and related proteins Pleckstrin homology (PH) domain; RhoGAP25 (also called ArhGap25) like other RhoGaps are involved in cell polarity, cell morphology and cytoskeletal organization. They act as GTPase activators for the Rac-type GTPases by converting them to an inactive GDP-bound state and control actin remodeling by inactivating Rac downstream of Rho leading to suppress leading edge protrusion and promotes cell retraction to achieve cellular polarity and are able to suppress RAC1 and CDC42 activity in vitro. Overexpression of these proteins induces cell rounding with partial or complete disruption of actin stress fibers and formation of membrane ruffles, lamellipodia, and filopodia. This hierarchy contains RhoGAP22, RhoGAP24, and RhoGAP25. Members here contain an N-terminal PH domain followed by a RhoGAP domain and either a BAR or TATA Binding Protein (TBP) Associated Factor 4 (TAF4) domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270083  Cd Length: 114  Bit Score: 43.14  E-value: 2.02e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        7 IKSGFLERRSKFLKSYSKGYYVLTPNFLHEFKTADRKKdlvPVMSLALSECTVTEHSrknstSSPNSTGsdaKFVLH--- 83
Cdd:cd13263   4 IKSGWLKKQGSIVKNWQQRWFVLRGDQLYYYKDEDDTK---PQGTIPLPGNKVKEVP-----FNPEEPG---KFLFEiip 72
                        90       100       110
                ....*....|....*....|....*....|..
4A6H_C       84 AKQNGIIRRGHN-WVFKADSYESMMSWFDNLK 114
Cdd:cd13263  73 GGGGDRMTSNHDsYLLMANSQAEMEEWVKVIR 104
PH_AtPH1 cd13276
Arabidopsis thaliana Pleckstrin homolog (PH) 1 (AtPH1) PH domain; AtPH1 is expressed in all ...
8-73 7.74e-06

Arabidopsis thaliana Pleckstrin homolog (PH) 1 (AtPH1) PH domain; AtPH1 is expressed in all plant tissue and is proposed to be the plant homolog of human pleckstrin. Pleckstrin consists of two PH domains separated by a linker region, while AtPH has a single PH domain with a short N-terminal extension. AtPH1 binds PtdIns3P specifically and is thought to be an adaptor molecule since it has no obvious catalytic functions. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270095  Cd Length: 106  Bit Score: 41.53  E-value: 7.74e-06
                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|....*.
4A6H_C        8 KSGFLERRSKFLKSYSKGYYVLTPNFLHEFKTADRKKDLVPVMSLALSECTvTEHSRKNSTSSPNS 73
Cdd:cd13276   1 KAGWLEKQGEFIKTWRRRWFVLKQGKLFWFKEPDVTPYSKPRGVIDLSKCL-TVKSAEDATNKENA 65
PH cd00821
Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are ...
8-113 4.36e-05

Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 275388 [Multi-domain]  Cd Length: 92  Bit Score: 39.45  E-value: 4.36e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        8 KSGFLERRS-KFLKSYSKGYYVLTPNFLHEFKTaDRKKDLVPVMSLALSECTVTEHSRKNStsspnstgSDAKFVLhakq 86
Cdd:cd00821   1 KEGYLLKRGgGGLKSWKKRWFVLFEGVLLYYKS-KKDSSYKPKGSIPLSGILEVEEVSPKE--------RPHCFEL---- 67
                        90       100
                ....*....|....*....|....*..
4A6H_C       87 ngIIRRGHNWVFKADSYESMMSWFDNL 113
Cdd:cd00821  68 --VTPDGRTYYLQADSEEERQEWLKAL 92
PH_Ses cd13288
Sesquipedalian family Pleckstrin homology (PH) domain; The sesquipedalian family has 2 ...
8-109 2.26e-04

Sesquipedalian family Pleckstrin homology (PH) domain; The sesquipedalian family has 2 mammalian members: Ses1 and Ses2, which are also callled 7 kDa inositol polyphosphate phosphatase-interacting protein 1 and 2. They play a role in endocytic trafficking and are required for receptor recycling from endosomes, both to the trans-Golgi network and the plasma membrane. Members of this family form homodimers and heterodimers. Sesquipedalian interacts with inositol polyphosphate 5-phosphatase OCRL-1 (INPP5F) also known as Lowe oculocerebrorenal syndrome protein, a phosphatase enzyme that is involved in actin polymerization and is found in the trans-Golgi network and INPP5B. Sesquipedalian contains a single PH domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270105 [Multi-domain]  Cd Length: 120  Bit Score: 37.99  E-value: 2.26e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        8 KSGFLERRSKFLKSYSKGYYVLTPNFLHEFktaDRKKDLVPVMSLALSECTVtEHSRknstsspnstgSDAKFVLHAKQN 87
Cdd:cd13288  10 KEGYLWKKGERNTSYQKRWFVLKGNLLFYF---EKKGDREPLGVIVLEGCTV-ELAE-----------DAEPYAFAIRFD 74
                        90       100
                ....*....|....*....|..
4A6H_C       88 GIIRRghNWVFKADSYESMMSW 109
Cdd:cd13288  75 GPGAR--SYVLAAENQEDMESW 94
PH2_FGD5_FGD6 cd13237
FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6 pleckstrin ...
9-113 2.13e-03

FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6 pleckstrin homology (PH) domain, C-terminus; FGD5 regulates promotes angiogenesis of vascular endothelial growth factor (VEGF) in vascular endothelial cells, including network formation, permeability, directional movement, and proliferation. The specific function of FGD6 is unknown. In general, FGDs have a RhoGEF (DH) domain, followed by a PH domain, a FYVE domain and a C-terminal PH domain. All FGDs are guanine nucleotide exchange factors that activate the Rho GTPase Cdc42, an important regulator of membrane trafficking. The RhoGEF domain is responsible for GEF catalytic activity, while the PH domain is involved in intracellular targeting of the DH domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270057  Cd Length: 91  Bit Score: 34.70  E-value: 2.13e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
4A6H_C        9 SGFLERRSKFLKSYSKGYYVLTPNFLHEFKtadRKKDLVPVMSLALSECTVTEHSRKNSTSSPNstgsdaKFVL-HAKQN 87
Cdd:cd13237   2 SGYLQRRKKSKKSWKRLWFVLKDKVLYTYK---ASEDVVALESVPLLGFTVVTIDESFEEDESL------VFQLlHKGQL 72
                        90       100
                ....*....|....*....|....*.
4A6H_C       88 GIIrrghnwvFKADSYESMMSWFDNL 113
Cdd:cd13237  73 PII-------FRADDAETAQRWIEAL 91
 
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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