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Conserved domains on  [gi|442614586|ref|NP_001027029|]
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Calcium-dependent secretion activator, isoform F [Drosophila melanogaster]

Protein Classification

PH_CADPS and DUF1041 domain-containing protein( domain architecture ID 10100714)

PH_CADPS and DUF1041 domain-containing protein

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
MUN pfam06292
MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These ...
904-1302 4.53e-128

MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These constitute a family of three highly homologous molecules (Munc13-1, Munc13-2 and Munc13-3) with homology to Caenorhabditis elegans unc-13p. Munc13 proteins contain a phorbol ester-binding C1 domain and two C2 domains, which are Ca2+/phospholipid binding domains. Sequence analyses have uncovered two regions called Munc13 homology domains 1 (MHD1) and 2 (MHD2) that are arranged between two flanking C2 domains. MHD1 and MHD2 domains are present in a wide variety of proteins from Arabidopsis thaliana, C. elegans, Drosophila melanogaster, mouse, rat and human, some of which may function in a Munc13-like manner to regulate membrane trafficking. Structural studies have defined MHD1 and MHD2 to be part of the larger MUN domain which forms an elongated structure composed of any pairs of alpha helices.


:

Pssm-ID: 461870  Cd Length: 473  Bit Score: 405.25  E-value: 4.53e-128
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   904 QMIKKSLETAALVNYTRLSN-----------KAKIDEDLRGDVIVPAPKKLEDLIHLAELCVDLLQQNEEHYG---EAFA 969
Cdd:pfam06292    1 QVVKDCLKAAALSNYQRLFEnayelsrefkiEDKESIPEESQGLGPSEKRLDFWIKLIELCVSVLQQDKEHYApvlNQFP 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   970 WFSDLLVEHAEIFWSLFAVDMDRVLSEQA------PDTWDS--FPLFQILNDYLRTDDNLRNGRFHQHLRDTFAPLVVRY 1041
Cdd:pfam06292   81 WELDLGAEHAEIFWSLFAVDMDAALEEHEqhrlckPDSWMNlhFKVKWLLNDYLRDDPTLKNGKFHPHYPDWFEPFVMRY 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1042 VDLMESSIAQSIHKGFEKERWESK------GNGCATSEDLFWKLDALQSFIRDLHWPDAEFRQHLEQRLKMMAVDMIEQC 1115
Cdd:pfam06292  161 LDLNESSIAQSLHGGFERDKKDGFqqssehALFSSSVVDLFWKLNQLQDFIKKLEWPDPEFAAHLEKRFKLMASDMLLAY 240
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1116 IQRTDSSFQSWLKKniafistdyilPSEMCAMVNVILDAKNQSFKL------TTIDGiDLYKFHAKIDDQIDKANVAMTQ 1189
Cdd:pfam06292  241 AKRTRKAFDSKLKK-----------PRTACTMMNNIQQARVQLEKMflcmggDELDG-EAHQYLTELQVLLEGVLDEMSS 308
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1190 GLSGKLMSVLESTLSKLAR--------------YDEGSLIGSILSFtnvsssgkdLGQGYVNFFRNNMDQVRGKIADDLW 1255
Cdd:pfam06292  309 IFADSFEPVLESVLSKLSRllqqikgsnrnnaaYDEGTLLSPLMDF---------LDGNLSLFARICEKTVLKRVLKELW 379
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1256 TLH-----------------------------------------------FFEQWYSQQINMLCNWLSERVDHALHYAQV 1288
Cdd:pfam06292  380 KIVmntlektvvlpplsdqsgsqlkllmslegaknltpkqcaildaaletIFQYFHAGGNGLKKTWLEKSPELQLLRYAL 459
                          490
                   ....*....|....
gi 442614586  1289 ASISHIIKKIYSDF 1302
Cdd:pfam06292  460 SLYTQTTDKLIKDF 473
PH_CADPS cd01234
Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS ...
585-711 3.98e-85

Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS/CAPS consists of two members, CAPS1 which regulates catecholamine release from neuroendocrine cells and CAPS2 which is involved in the release of two neurotrophins, brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) from cerebellar granule cells. CADPS plays an important role in vesicle exocytosis in neurons and endocrine cells where it functions to prime the exocytic machinery for Ca2+-triggered fusion. Priming involves the assembly of trans SNARE complexes. The initial interaction of vesicles with target membranes is mediated by diverse stage-specific tethering factors or multi-subunit tethering complexes. CADPS and Munc13 proteins are proposed to be the functional homologs of the stage-specific tethering factors that prime membrane fusion. Interestingly, regions in the C-terminal half of CADPS are similar to the C-terminal region of Munc13-1 that was reported to bind syntaxin-1. CADPS has independent interactions with each of the SNARE proteins (Q-SNARE and R-SNARE) required for vesicle fusion. CADPS interacts with Q-SNARE proteins syntaxin-1 (H3 SNARE) and SNAP-25 (SN1) and might promote Q-SNARE heterodimer formation. Through its N-terminal R-SNARE VAMP-2 interactions, CADPS bound to heterodimeric Q-SNARE complexes could be involved in catalyzing the zippering of VAMP-2 into recipient complexes. It also contains a central PH domain that binds to phosphoinositide 4,5 bisphosphate containing liposomes. Membrane association may also be mediated by binding to phosphatidlyserine via general electrostatic interactions. 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: 269940  Cd Length: 122  Bit Score: 273.09  E-value: 3.98e-85
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  585 RLDKPLNMKHCGYLYAIGKSVWKKWKRRYFVLVQVSQYTFAMCSYKEKKSEPSEMMQLDGYTVDYIEAASAnlmfgIDLN 664
Cdd:cd01234     1 RMDKPQNMKHCGYLYALGKSVWKKWKKRYFVLVQVSQYTFAMCSYREKKSEPQEMMQLDGYTVDYTDPQPD-----LGLE 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*..
gi 442614586  665 GGRYFFNAVREGDSISFACDDENECSLWVMAMYRATGQSHKPTPPIT 711
Cdd:cd01234    76 GGRFFFNAVKEGDSVIFASDDENDRQLWVQALYRATGQSHKPVPPTQ 122
 
Name Accession Description Interval E-value
MUN pfam06292
MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These ...
904-1302 4.53e-128

MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These constitute a family of three highly homologous molecules (Munc13-1, Munc13-2 and Munc13-3) with homology to Caenorhabditis elegans unc-13p. Munc13 proteins contain a phorbol ester-binding C1 domain and two C2 domains, which are Ca2+/phospholipid binding domains. Sequence analyses have uncovered two regions called Munc13 homology domains 1 (MHD1) and 2 (MHD2) that are arranged between two flanking C2 domains. MHD1 and MHD2 domains are present in a wide variety of proteins from Arabidopsis thaliana, C. elegans, Drosophila melanogaster, mouse, rat and human, some of which may function in a Munc13-like manner to regulate membrane trafficking. Structural studies have defined MHD1 and MHD2 to be part of the larger MUN domain which forms an elongated structure composed of any pairs of alpha helices.


Pssm-ID: 461870  Cd Length: 473  Bit Score: 405.25  E-value: 4.53e-128
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   904 QMIKKSLETAALVNYTRLSN-----------KAKIDEDLRGDVIVPAPKKLEDLIHLAELCVDLLQQNEEHYG---EAFA 969
Cdd:pfam06292    1 QVVKDCLKAAALSNYQRLFEnayelsrefkiEDKESIPEESQGLGPSEKRLDFWIKLIELCVSVLQQDKEHYApvlNQFP 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   970 WFSDLLVEHAEIFWSLFAVDMDRVLSEQA------PDTWDS--FPLFQILNDYLRTDDNLRNGRFHQHLRDTFAPLVVRY 1041
Cdd:pfam06292   81 WELDLGAEHAEIFWSLFAVDMDAALEEHEqhrlckPDSWMNlhFKVKWLLNDYLRDDPTLKNGKFHPHYPDWFEPFVMRY 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1042 VDLMESSIAQSIHKGFEKERWESK------GNGCATSEDLFWKLDALQSFIRDLHWPDAEFRQHLEQRLKMMAVDMIEQC 1115
Cdd:pfam06292  161 LDLNESSIAQSLHGGFERDKKDGFqqssehALFSSSVVDLFWKLNQLQDFIKKLEWPDPEFAAHLEKRFKLMASDMLLAY 240
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1116 IQRTDSSFQSWLKKniafistdyilPSEMCAMVNVILDAKNQSFKL------TTIDGiDLYKFHAKIDDQIDKANVAMTQ 1189
Cdd:pfam06292  241 AKRTRKAFDSKLKK-----------PRTACTMMNNIQQARVQLEKMflcmggDELDG-EAHQYLTELQVLLEGVLDEMSS 308
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1190 GLSGKLMSVLESTLSKLAR--------------YDEGSLIGSILSFtnvsssgkdLGQGYVNFFRNNMDQVRGKIADDLW 1255
Cdd:pfam06292  309 IFADSFEPVLESVLSKLSRllqqikgsnrnnaaYDEGTLLSPLMDF---------LDGNLSLFARICEKTVLKRVLKELW 379
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1256 TLH-----------------------------------------------FFEQWYSQQINMLCNWLSERVDHALHYAQV 1288
Cdd:pfam06292  380 KIVmntlektvvlpplsdqsgsqlkllmslegaknltpkqcaildaaletIFQYFHAGGNGLKKTWLEKSPELQLLRYAL 459
                          490
                   ....*....|....
gi 442614586  1289 ASISHIIKKIYSDF 1302
Cdd:pfam06292  460 SLYTQTTDKLIKDF 473
PH_CADPS cd01234
Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS ...
585-711 3.98e-85

Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS/CAPS consists of two members, CAPS1 which regulates catecholamine release from neuroendocrine cells and CAPS2 which is involved in the release of two neurotrophins, brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) from cerebellar granule cells. CADPS plays an important role in vesicle exocytosis in neurons and endocrine cells where it functions to prime the exocytic machinery for Ca2+-triggered fusion. Priming involves the assembly of trans SNARE complexes. The initial interaction of vesicles with target membranes is mediated by diverse stage-specific tethering factors or multi-subunit tethering complexes. CADPS and Munc13 proteins are proposed to be the functional homologs of the stage-specific tethering factors that prime membrane fusion. Interestingly, regions in the C-terminal half of CADPS are similar to the C-terminal region of Munc13-1 that was reported to bind syntaxin-1. CADPS has independent interactions with each of the SNARE proteins (Q-SNARE and R-SNARE) required for vesicle fusion. CADPS interacts with Q-SNARE proteins syntaxin-1 (H3 SNARE) and SNAP-25 (SN1) and might promote Q-SNARE heterodimer formation. Through its N-terminal R-SNARE VAMP-2 interactions, CADPS bound to heterodimeric Q-SNARE complexes could be involved in catalyzing the zippering of VAMP-2 into recipient complexes. It also contains a central PH domain that binds to phosphoinositide 4,5 bisphosphate containing liposomes. Membrane association may also be mediated by binding to phosphatidlyserine via general electrostatic interactions. 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: 269940  Cd Length: 122  Bit Score: 273.09  E-value: 3.98e-85
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  585 RLDKPLNMKHCGYLYAIGKSVWKKWKRRYFVLVQVSQYTFAMCSYKEKKSEPSEMMQLDGYTVDYIEAASAnlmfgIDLN 664
Cdd:cd01234     1 RMDKPQNMKHCGYLYALGKSVWKKWKKRYFVLVQVSQYTFAMCSYREKKSEPQEMMQLDGYTVDYTDPQPD-----LGLE 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*..
gi 442614586  665 GGRYFFNAVREGDSISFACDDENECSLWVMAMYRATGQSHKPTPPIT 711
Cdd:cd01234    76 GGRFFFNAVKEGDSVIFASDDENDRQLWVQALYRATGQSHKPVPPTQ 122
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
592-700 2.19e-10

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: 59.10  E-value: 2.19e-10
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586    592 MKHCGYLYAIGKSVWKKWKRRYFVLvqvsqYTFAMCSYKEKK----SEPSEMMQLDGYTVDYIEaasanlmfGIDLNGGR 667
Cdd:smart00233    1 VIKEGWLYKKSGGGKKSWKKRYFVL-----FNSTLLYYKSKKdkksYKPKGSIDLSGCTVREAP--------DPDSSKKP 67
                            90       100       110
                    ....*....|....*....|....*....|....
gi 442614586    668 YFFNAV-REGDSISFACDDENECSLWVMAMYRAT 700
Cdd:smart00233   68 HCFEIKtSDRKTLLLQAESEEEREKWVEALRKAI 101
PH pfam00169
PH domain; PH stands for pleckstrin homology.
593-699 1.38e-06

PH domain; PH stands for pleckstrin homology.


Pssm-ID: 459697 [Multi-domain]  Cd Length: 105  Bit Score: 48.33  E-value: 1.38e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   593 KHCGYLYAIGKSVWKKWKRRYFVLvqvSQYTFAMCSYK--EKKSEPSEMMQLDGYTVDYIEAAS---ANLMFGIdlnggr 667
Cdd:pfam00169    2 VKEGWLLKKGGGKKKSWKKRYFVL---FDGSLLYYKDDksGKSKEPKGSISLSGCEVVEVVASDspkRKFCFEL------ 72
                           90       100       110
                   ....*....|....*....|....*....|..
gi 442614586   668 yFFNAVREGDSISFACDDENECSLWVMAMYRA 699
Cdd:pfam00169   73 -RTGERTGKRTYLLQAESEEERKDWIKAIQSA 103
 
Name Accession Description Interval E-value
MUN pfam06292
MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These ...
904-1302 4.53e-128

MUN domain; This entry corresponds to the MUN domain found in Munc13 proteins. These constitute a family of three highly homologous molecules (Munc13-1, Munc13-2 and Munc13-3) with homology to Caenorhabditis elegans unc-13p. Munc13 proteins contain a phorbol ester-binding C1 domain and two C2 domains, which are Ca2+/phospholipid binding domains. Sequence analyses have uncovered two regions called Munc13 homology domains 1 (MHD1) and 2 (MHD2) that are arranged between two flanking C2 domains. MHD1 and MHD2 domains are present in a wide variety of proteins from Arabidopsis thaliana, C. elegans, Drosophila melanogaster, mouse, rat and human, some of which may function in a Munc13-like manner to regulate membrane trafficking. Structural studies have defined MHD1 and MHD2 to be part of the larger MUN domain which forms an elongated structure composed of any pairs of alpha helices.


Pssm-ID: 461870  Cd Length: 473  Bit Score: 405.25  E-value: 4.53e-128
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   904 QMIKKSLETAALVNYTRLSN-----------KAKIDEDLRGDVIVPAPKKLEDLIHLAELCVDLLQQNEEHYG---EAFA 969
Cdd:pfam06292    1 QVVKDCLKAAALSNYQRLFEnayelsrefkiEDKESIPEESQGLGPSEKRLDFWIKLIELCVSVLQQDKEHYApvlNQFP 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   970 WFSDLLVEHAEIFWSLFAVDMDRVLSEQA------PDTWDS--FPLFQILNDYLRTDDNLRNGRFHQHLRDTFAPLVVRY 1041
Cdd:pfam06292   81 WELDLGAEHAEIFWSLFAVDMDAALEEHEqhrlckPDSWMNlhFKVKWLLNDYLRDDPTLKNGKFHPHYPDWFEPFVMRY 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1042 VDLMESSIAQSIHKGFEKERWESK------GNGCATSEDLFWKLDALQSFIRDLHWPDAEFRQHLEQRLKMMAVDMIEQC 1115
Cdd:pfam06292  161 LDLNESSIAQSLHGGFERDKKDGFqqssehALFSSSVVDLFWKLNQLQDFIKKLEWPDPEFAAHLEKRFKLMASDMLLAY 240
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1116 IQRTDSSFQSWLKKniafistdyilPSEMCAMVNVILDAKNQSFKL------TTIDGiDLYKFHAKIDDQIDKANVAMTQ 1189
Cdd:pfam06292  241 AKRTRKAFDSKLKK-----------PRTACTMMNNIQQARVQLEKMflcmggDELDG-EAHQYLTELQVLLEGVLDEMSS 308
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1190 GLSGKLMSVLESTLSKLAR--------------YDEGSLIGSILSFtnvsssgkdLGQGYVNFFRNNMDQVRGKIADDLW 1255
Cdd:pfam06292  309 IFADSFEPVLESVLSKLSRllqqikgsnrnnaaYDEGTLLSPLMDF---------LDGNLSLFARICEKTVLKRVLKELW 379
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  1256 TLH-----------------------------------------------FFEQWYSQQINMLCNWLSERVDHALHYAQV 1288
Cdd:pfam06292  380 KIVmntlektvvlpplsdqsgsqlkllmslegaknltpkqcaildaaletIFQYFHAGGNGLKKTWLEKSPELQLLRYAL 459
                          490
                   ....*....|....
gi 442614586  1289 ASISHIIKKIYSDF 1302
Cdd:pfam06292  460 SLYTQTTDKLIKDF 473
PH_CADPS cd01234
Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS ...
585-711 3.98e-85

Ca2+-dependent activator protein (also called CAPS) Pleckstrin homology (PH) domain; CADPS/CAPS consists of two members, CAPS1 which regulates catecholamine release from neuroendocrine cells and CAPS2 which is involved in the release of two neurotrophins, brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) from cerebellar granule cells. CADPS plays an important role in vesicle exocytosis in neurons and endocrine cells where it functions to prime the exocytic machinery for Ca2+-triggered fusion. Priming involves the assembly of trans SNARE complexes. The initial interaction of vesicles with target membranes is mediated by diverse stage-specific tethering factors or multi-subunit tethering complexes. CADPS and Munc13 proteins are proposed to be the functional homologs of the stage-specific tethering factors that prime membrane fusion. Interestingly, regions in the C-terminal half of CADPS are similar to the C-terminal region of Munc13-1 that was reported to bind syntaxin-1. CADPS has independent interactions with each of the SNARE proteins (Q-SNARE and R-SNARE) required for vesicle fusion. CADPS interacts with Q-SNARE proteins syntaxin-1 (H3 SNARE) and SNAP-25 (SN1) and might promote Q-SNARE heterodimer formation. Through its N-terminal R-SNARE VAMP-2 interactions, CADPS bound to heterodimeric Q-SNARE complexes could be involved in catalyzing the zippering of VAMP-2 into recipient complexes. It also contains a central PH domain that binds to phosphoinositide 4,5 bisphosphate containing liposomes. Membrane association may also be mediated by binding to phosphatidlyserine via general electrostatic interactions. 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: 269940  Cd Length: 122  Bit Score: 273.09  E-value: 3.98e-85
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  585 RLDKPLNMKHCGYLYAIGKSVWKKWKRRYFVLVQVSQYTFAMCSYKEKKSEPSEMMQLDGYTVDYIEAASAnlmfgIDLN 664
Cdd:cd01234     1 RMDKPQNMKHCGYLYALGKSVWKKWKKRYFVLVQVSQYTFAMCSYREKKSEPQEMMQLDGYTVDYTDPQPD-----LGLE 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*..
gi 442614586  665 GGRYFFNAVREGDSISFACDDENECSLWVMAMYRATGQSHKPTPPIT 711
Cdd:cd01234    76 GGRFFFNAVKEGDSVIFASDDENDRQLWVQALYRATGQSHKPVPPTQ 122
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
592-700 2.19e-10

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: 59.10  E-value: 2.19e-10
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586    592 MKHCGYLYAIGKSVWKKWKRRYFVLvqvsqYTFAMCSYKEKK----SEPSEMMQLDGYTVDYIEaasanlmfGIDLNGGR 667
Cdd:smart00233    1 VIKEGWLYKKSGGGKKSWKKRYFVL-----FNSTLLYYKSKKdkksYKPKGSIDLSGCTVREAP--------DPDSSKKP 67
                            90       100       110
                    ....*....|....*....|....*....|....
gi 442614586    668 YFFNAV-REGDSISFACDDENECSLWVMAMYRAT 700
Cdd:smart00233   68 HCFEIKtSDRKTLLLQAESEEEREKWVEALRKAI 101
PH_3BP2 cd13308
SH3 domain-binding protein 2 Pleckstrin homology (PH) domain; SH3BP2 (the gene that encodes ...
594-698 3.13e-07

SH3 domain-binding protein 2 Pleckstrin homology (PH) domain; SH3BP2 (the gene that encodes the adaptor protein 3BP2), HD, ITU, IT10C3, and ADD1 are located near the Huntington's Disease Gene on Human Chromosome 4pl6.3. SH3BP2 lies in a region that is often missing in individuals with Wolf-Hirschhorn syndrome (WHS). Gain of function mutations in SH3BP2 causes enhanced B-cell antigen receptor (BCR)-mediated activation of nuclear factor of activated T cells (NFAT), resulting in a rare, genetic disorder called cherubism. This results in an increase in the signaling complex formation with Syk, phospholipase C-gamma2 (PLC-gamma2), and Vav1. It was recently discovered that Tankyrase regulates 3BP2 stability through ADP-ribosylation and ubiquitylation by the E3-ubiquitin ligase. Cherubism mutations uncouple 3BP2 from Tankyrase-mediated protein destruction, which results in its stabilization and subsequent hyperactivation of the Src, Syk, and Vav signaling pathways. SH3BP2 is also a potential negative regulator of the abl oncogene. 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: 270118  Cd Length: 113  Bit Score: 50.10  E-value: 3.13e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  594 HCGYLYAIGKS--VWKKWKRRYFVLVQVSQYTFAmcSYKEKKsePSEMMQLDGYTVDYIEAASANLMFGIDL----NGGR 667
Cdd:cd13308    11 HSGTLTKKGGSqkTLQNWQLRYVIIHQGCVYYYK--NDQSAK--PKGVFSLNGYNRRAAEERTSKLKFVFKIihlsPDHR 86
                          90       100       110
                  ....*....|....*....|....*....|.
gi 442614586  668 YFFnavregdsisFACDDENECSLWvMAMYR 698
Cdd:cd13308    87 TWY----------FAAKSEDEMSEW-MEYIR 106
PH pfam00169
PH domain; PH stands for pleckstrin homology.
593-699 1.38e-06

PH domain; PH stands for pleckstrin homology.


Pssm-ID: 459697 [Multi-domain]  Cd Length: 105  Bit Score: 48.33  E-value: 1.38e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586   593 KHCGYLYAIGKSVWKKWKRRYFVLvqvSQYTFAMCSYK--EKKSEPSEMMQLDGYTVDYIEAAS---ANLMFGIdlnggr 667
Cdd:pfam00169    2 VKEGWLLKKGGGKKKSWKKRYFVL---FDGSLLYYKDDksGKSKEPKGSISLSGCEVVEVVASDspkRKFCFEL------ 72
                           90       100       110
                   ....*....|....*....|....*....|..
gi 442614586   668 yFFNAVREGDSISFACDDENECSLWVMAMYRA 699
Cdd:pfam00169   73 -RTGERTGKRTYLLQAESEEERKDWIKAIQSA 103
PH cd00821
Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are ...
594-696 1.27e-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: 45.23  E-value: 1.27e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  594 HCGYLYAIGKSVWKKWKRRYFVLvqvSQYTFAMCSYK-EKKSEPSEMMQLDG-YTVDYIEAASANLMFGIDLNGGRyffn 671
Cdd:cd00821     1 KEGYLLKRGGGGLKSWKKRWFVL---FEGVLLYYKSKkDSSYKPKGSIPLSGiLEVEEVSPKERPHCFELVTPDGR---- 73
                          90       100
                  ....*....|....*....|....*
gi 442614586  672 avregdSISFACDDENECSLWVMAM 696
Cdd:cd00821    74 ------TYYLQADSEEERQEWLKAL 92
PH_Boi cd13316
Boi family Pleckstrin homology domain; Yeast Boi proteins Boi1 and Boi2 are functionally ...
609-700 1.44e-03

Boi family Pleckstrin homology domain; Yeast Boi proteins Boi1 and Boi2 are functionally redundant and important for cell growth with Boi mutants displaying defects in bud formation and in the maintenance of cell polarity.They appear to be linked to Rho-type GTPase, Cdc42 and Rho3. Boi1 and Boi2 display two-hybrid interactions with the GTP-bound ("active") form of Cdc42, while Rho3 can suppress of the lethality caused by deletion of Boi1 and Boi2. These findings suggest that Boi1 and Boi2 are targets of Cdc42 that promote cell growth in a manner that is regulated by Rho3. Boi proteins contain a N-terminal SH3 domain, followed by a SAM (sterile alpha motif) domain, a proline-rich region, which mediates binding to the second SH3 domain of Bem1, and C-terminal PH domain. The PH domain is essential for its function in cell growth and is important for localization to the bud, while the SH3 domain is needed for localization to the neck. 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: 270126  Cd Length: 97  Bit Score: 39.28  E-value: 1.44e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  609 WKRRYFVLVQVSQYTFamcsYKEKKSEPSEMMQLDGYTVDYIEAASanlmfgidLNGGRYFFNAV--REGDSISFACDDE 686
Cdd:cd13316    16 WKTRYFVLKGTRLYYL----KSENDDKEKGLIDLTGHRVVPDDSNS--------PFRGSYGFKLVppAVPKVHYFAVDEK 83
                          90
                  ....*....|....
gi 442614586  687 NECSLWVMAMYRAT 700
Cdd:cd13316    84 EELREWMKALMKAT 97
PH_PEPP1_2_3 cd13248
Phosphoinositol 3-phosphate binding proteins 1, 2, and 3 pleckstrin homology (PH) domain; ...
596-699 2.04e-03

Phosphoinositol 3-phosphate binding proteins 1, 2, and 3 pleckstrin homology (PH) domain; PEPP1 (also called PLEKHA4/PH domain-containing family A member 4 and RHOXF1/Rhox homeobox family member 1), and related homologs PEPP2 (also called PLEKHA5/PH domain-containing family A member 5) and PEPP3 (also called PLEKHA6/PH domain-containing family A member 6), have PH domains that interact specifically with PtdIns(3,4)P3. Other proteins that bind PtdIns(3,4)P3 specifically are: TAPP1 (tandem PH-domain-containing protein-1) and TAPP2], PtdIns3P AtPH1, and Ptd- Ins(3,5)P2 (centaurin-beta2). All of these proteins contain at least 5 of the 6 conserved amino acids that make up the putative phosphatidylinositol 3,4,5- trisphosphate-binding motif (PPBM) located at their N-terminus. 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: 270068  Cd Length: 104  Bit Score: 39.18  E-value: 2.04e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  596 GYLYAIGKSVWKKWKRRYFVLVQvsqytFAMCSYK-EKKSEPSEMMQLDGYTvdyIEAASANlmfgiDLNGGRYFFNAVR 674
Cdd:cd13248    11 GWLHKQGGSGLKNWRKRWFVLKD-----NCLYYYKdPEEEKALGSILLPSYT---ISPAPPS-----DEISRKFAFKAEH 77
                          90       100
                  ....*....|....*....|....*.
gi 442614586  675 EG-DSISFACDDENECSLWVMAMYRA 699
Cdd:cd13248    78 ANmRTYYFAADTAEEMEQWMNAMSLA 103
PH_RasGRF1_2 cd13261
Ras-specific guanine nucleotide-releasing factors 1 and 2 Pleckstrin homology (PH) domain; ...
608-700 3.58e-03

Ras-specific guanine nucleotide-releasing factors 1 and 2 Pleckstrin homology (PH) domain; RasGRF1 (also called GRF1; CDC25Mm/Ras-specific nucleotide exchange factor CDC25; GNRP/Guanine nucleotide-releasing protein) and RasGRF2 (also called GRF2; Ras guanine nucleotide exchange factor 2) are a family of guanine nucleotide exchange factors (GEFs). They both promote the exchange of Ras-bound GDP by GTP, thereby regulating the RAS signaling pathway. RasGRF1 and RasGRF2 form homooligomers and heterooligomers. GRF1 has 3 isoforms and GRF2 has 2 isoforms. The longest isoforms of RasGRF1 and RasGRF2 contain the following domains: a Rho-GEF domain sandwiched between 2 PH domains, IQ domains, a REM (Ras exchanger motif) domain, and a Ras-GEF domainwhich gives them the capacity to activate both Ras and Rac GTPases in response to signals from a variety of neurotransmitter receptors. Their IQ domains allow them to act as calcium sensors to mediate the actions of NMDA-type and calcium-permeable AMPA-type glutamate receptors. GRF1 also mediates the action of dopamine receptors that signal through cAMP. GRF1 and GRF2 play strikingly different roles in regulating MAP kinase family members, neuronal synaptic plasticity, specific forms of learning and memory, and behavioral responses to psychoactive drugs. 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: 270081  Cd Length: 136  Bit Score: 39.33  E-value: 3.58e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 442614586  608 KWKRRYFVLVQVSQYTFAmcsyKEKKSEPSEMMQLDGYTVDYIEAASANLMFGIDLNGGRYF---FNavREGD-SISFAC 683
Cdd:cd13261    20 KWHERWFALYQNLLFYFE----NESSSRPSGLYLLEGCYCERLPTPKGALKGKDHLEKQHYFtisFR--HENQrQYELRA 93
                          90
                  ....*....|....*..
gi 442614586  684 DDENECSLWVMAMYRAT 700
Cdd:cd13261    94 ETESDCDEWVEAIKQAS 110
 
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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