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Conserved domains on  [gi|755530196|ref|XP_011241054|]
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extended synaptotagmin-3 isoform X2 [Mus musculus]

Protein Classification

extended synaptotagmin family protein( domain architecture ID 10170455)

extended synaptotagmin (Esyt) family protein plays important roles in both lipid homeostasis and intracellular signaling

Gene Ontology:  GO:0005544|GO:0005509|GO:0061817|GO:0006869
PubMed:  8976547|9632630|17360437

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
C2C_KIAA1228 cd04030
C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins ...
 495-620 1.13e-63

C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins are uncharacterized human proteins. They were compiled by the Kazusa mammalian cDNA project which identified more than 2000 human genes. They are identified by 4 digit codes that precede the KIAA designation. Many KIAA genes are still functionally uncharacterized including KIAA1228. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


:

Pssm-ID: 175996 [Multi-domain]  Cd Length: 127  Bit Score: 205.97  E-value: 1.13e-63
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 495 RLGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSS-GADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGE 573
Cdd:cd04030    1 PLGRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSdIPDPYVRLYLLPDKSKSTRRKTSVKKDNLNPVFDETFEFPVSLEE 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*..
gi 755530196 574 VQKRSLDVAVKNSRPLGSHRRKELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd04030   81 LKRRTLDVAVKNSKSFLSREKKLLGQVLIDLSDLDLSKGFTQWYDLT 127
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
 46-164 9.21e-58

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


:

Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 190.20  E-value: 9.21e-58
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFLG--LGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:cd08391    1 GVLRIHVIEAQDLVAKDKFVGglVKGKSDPYVIVRVGAQTFKSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDEDPD 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 124 KDDFLGSLQICLGDVMKNRVVDEWFALNDTTSGRLHLRLEW 164
Cdd:cd08391   81 KDDFLGRLSIDLGSVEKKGFIDEWLPLEDVKSGRLHLKLEW 121
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 185-308 2.10e-34

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


:

Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 126.14  E-value: 2.10e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 185 ILVVFLENACNLPrnpfdylngeyrakklsrfvKNKASRDPSSYVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAA 264
Cdd:cd04050    1 LLFVYLDSAKNLP--------------------LAKSTKEPSPYVELTVGKTTQKSKVKERTNNPVWEEGFTFLVRNPEN 60

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 755530196 265 EQLCLKVLDDELECALGVLEFPLCRILPCADLTLEQCFQLDHSG 308
Cdd:cd04050   61 QELEIEVKDDKTGKSLGSLTLPLSELLKEPDLTLDQPFPLDNSG 104
SMP_SF super family cl45903
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain superfamily; The SMP ...
 1-32 1.48e-10

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain superfamily; The SMP domain is a lipid transport domain found in phospholipid transfer proteins such as synaptotagmin family proteins, tricalbin (TCB) family proteins, maintenance of mitochondrial morphology protein 1 (MMM1), mitochondrial distribution and morphology protein 12 (MDM12), mitochondrial distribution and morphology protein 34 (MDM34), PDZ domain-containing protein 8 (PDZD8), testis-expressed protein 2 (TEX2), meiotically up-regulated gene 190 protein (Mug190), C2 domain-containing protein 2 (C2CD2) and C2 domain-containing protein 2-like (C2CD2L). The SMP domain belongs to a superfamily of lipid/hydrophobic ligand-binding domains called TULIP (tubular lipid-binding proteins). It adopts a TULIP fold with two alpha helices and a highly curved antiparallel beta sheet forming a cornucopia-like structure.


The actual alignment was detected with superfamily member cd21681:

Pssm-ID: 459248  Cd Length: 177  Bit Score: 60.61  E-value: 1.48e-10
                         10        20        30
                 ....*....|....*....|....*....|..
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPVKK 32
Cdd:cd21681  146 IPGINDMSDSLIEDLIASHLVLPNRFTVPLKK 177
 
Name Accession Description Interval E-value
C2C_KIAA1228 cd04030
C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins ...
 495-620 1.13e-63

C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins are uncharacterized human proteins. They were compiled by the Kazusa mammalian cDNA project which identified more than 2000 human genes. They are identified by 4 digit codes that precede the KIAA designation. Many KIAA genes are still functionally uncharacterized including KIAA1228. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175996 [Multi-domain]  Cd Length: 127  Bit Score: 205.97  E-value: 1.13e-63
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 495 RLGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSS-GADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGE 573
Cdd:cd04030    1 PLGRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSdIPDPYVRLYLLPDKSKSTRRKTSVKKDNLNPVFDETFEFPVSLEE 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*..
gi 755530196 574 VQKRSLDVAVKNSRPLGSHRRKELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd04030   81 LKRRTLDVAVKNSKSFLSREKKLLGQVLIDLSDLDLSKGFTQWYDLT 127
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
 46-164 9.21e-58

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 190.20  E-value: 9.21e-58
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFLG--LGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:cd08391    1 GVLRIHVIEAQDLVAKDKFVGglVKGKSDPYVIVRVGAQTFKSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDEDPD 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 124 KDDFLGSLQICLGDVMKNRVVDEWFALNDTTSGRLHLRLEW 164
Cdd:cd08391   81 KDDFLGRLSIDLGSVEKKGFIDEWLPLEDVKSGRLHLKLEW 121
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 185-308 2.10e-34

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 126.14  E-value: 2.10e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 185 ILVVFLENACNLPrnpfdylngeyrakklsrfvKNKASRDPSSYVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAA 264
Cdd:cd04050    1 LLFVYLDSAKNLP--------------------LAKSTKEPSPYVELTVGKTTQKSKVKERTNNPVWEEGFTFLVRNPEN 60

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 755530196 265 EQLCLKVLDDELECALGVLEFPLCRILPCADLTLEQCFQLDHSG 308
Cdd:cd04050   61 QELEIEVKDDKTGKSLGSLTLPLSELLKEPDLTLDQPFPLDNSG 104
C2 pfam00168
C2 domain;
46-150 8.13e-27

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 104.71  E-value: 8.13e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHC--RSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:pfam00168   1 GRLTVTVIEAKNLPPKD----GNGTSDPYVKVYLLDGKQkkKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRF 76

                          90       100
                  ....*....|....*....|....*...
gi 755530196  124 -KDDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:pfam00168  77 gRDDFIGEVRIPLSELDSGEGLDGWYPL 104
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 47-147 4.87e-21

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 88.31  E-value: 4.87e-21
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196    47 VIRVHLLEAKKLAQKDNFlglgGKSDPYAKVSIGLQHC---RSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:smart00239   1 TLTVKIISARNLPPKDKG----GKSDPYVKVSLDGDPKekkKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRF 76

                           90       100
                   ....*....|....*....|....*
gi 755530196   124 -KDDFLGSLQICLGDVMKNRVVDEW 147
Cdd:smart00239  77 gRDDFIGQVTIPLSDLLLGGRHEKL 101
C2 pfam00168
C2 domain;
512-619 9.88e-21

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 87.37  E-value: 9.88e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLperRWASRKKTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPLG 590
Cdd:pfam00168   3 LTVTVIEAKNLPPKDGNGtSDPYVKVYLL---DGKQKKKTKVVKNTLNPVWNETFTFSVP--DPENAVLEIEVYDYDRFG 77

                          90       100
                  ....*....|....*....|....*....
gi 755530196  591 SHRRkeLGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:pfam00168  78 RDDF--IGEVRIPLSELDSGEGLDGWYPL 104
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 512-616 2.98e-16

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 74.45  E-value: 2.98e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRwaSRKKTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPLG 590
Cdd:smart00239   2 LTVKIISARNLPPKDKGGkSDPYVKVSLDGDPK--EKKKTKVVKNTLNPVWNETFEFEVP--PPELAELEIEVYDKDRFG 77

                           90       100
                   ....*....|....*....|....*.
gi 755530196   591 SHRRkeLGKVLIDLSkqDLIKGFSQW 616
Cdd:smart00239  78 RDDF--IGQVTIPLS--DLLLGGRHE 99
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
1-292 2.46e-13

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 73.64  E-value: 2.46e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196    1 MPGINELSDSLLEDLIAAHLVLPNRVTVPVKKGL-DVTNLrvplPCGVIRVHLLEAKKLAQKDNFLGlgGKSDPYAKV-S 78
Cdd:COG5038   394 IPGLSRFIQEIINSTLGPMLLPPNSLTIDISQIMaGDSGT----AIGVVEVKIKSAEGLKKSDSTIN--GTVDPYITVtF 467

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   79 IGLQHCRSRTIYKNLNPTWNEVFeFMVYEVPGQDLEVDLYD-EDTDKDDFLGSLQICLGDVMKNRVVDEWFA---LNDTT 154
Cdd:COG5038   468 SDRVIGKTRVKKNTLNPVWNETF-YILLNSFTDPLNLSLYDfNSFKSDKVVGSTQLDLALLHQNPVKKNELYeflRNTKN 546

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  155 SGRLHLRLEW-------LSLLTDQEALTENDSGlstaILVVFLEnacnlprnpfdylngeyrakKLSRFVKNKASRDPSS 227
Cdd:COG5038   547 VGRLTYDLRFfpviedkKELKGSVEPLEDSNTG----ILKVTLR--------------------EVKALDELSSKKDNKS 602

                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 755530196  228 YVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDELECALGVLEFPLCRILP 292
Cdd:COG5038   603 AELYTNAKEVYSTGKLKFTNHPSWNLQYNVLVTDRKNSSIKVVTFDVQSGKVIATEGSTLPDLID 667
SMP_ESyt3 cd21681
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended ...
 1-32 1.48e-10

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended synaptotagmin-3 (E-Syt3) and similar proteins; Extended synaptotagmin-3 (E-Syt3), also called Chr3Syt, binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport. It tethers the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane. E-Syt3 consists of an N-terminal endoplasmic reticulum (ER)-membrane anchor, a central SMP-domain, and three C-terminal cytoplasmic C2-domains. The ER-membrane anchor and C2 domains are required for tethering, and the SMP domain may be implicated in lipid transport. This model corresponds to the SMP domain.


Pssm-ID: 439237  Cd Length: 177  Bit Score: 60.61  E-value: 1.48e-10
                         10        20        30
                 ....*....|....*....|....*....|..
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPVKK 32
Cdd:cd21681  146 IPGINDMSDSLIEDLIASHLVLPNRFTVPLKK 177
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 208-291 1.71e-07

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 49.79  E-value: 1.71e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   208 YRAKKLSRFVKNKASrDPssYVKLTVG---KKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDELECA---LG 281
Cdd:smart00239   7 ISARNLPPKDKGGKS-DP--YVKVSLDgdpKEKKKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRddfIG 83

                           90
                   ....*....|
gi 755530196   282 VLEFPLCRIL 291
Cdd:smart00239  84 QVTIPLSDLL 93
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
12-140 2.94e-07

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 53.99  E-value: 2.94e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   12 LEDLIAAHLVLPNRVTVPVKKG-LDVTNLRVPL--------------PCGVIRVHLLEAKKLAQKDnflgLGGKSDPYAK 76
Cdd:COG5038   662 LPDLIDRTLDTFLVFPLRNPKGrIFITNYWKPIynaggsssktvydtPIGAIRVSVRKANDLRNEI----PGGKSDPYAT 737

                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 755530196   77 VSIGlQHCRSRTIYK--NLNPTWNEV-FEFMVYEVPGQDLEVDLYDEDTDkDDFLGSLQICLGDVMK 140
Cdd:COG5038   738 VLVN-NLVKYRTIYGssTLNPIWNEIlYVPVTSKNQRLTLECMDYEESGD-DRNLGEVNINVSNVSK 802
C2 pfam00168
C2 domain;
208-292 4.30e-06

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 45.77  E-value: 4.30e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  208 YRAKKLsrfVKNKASRDPSSYVKLTV--GKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDEL---ECALGV 282
Cdd:pfam00168   8 IEAKNL---PPKDGNGTSDPYVKVYLldGKQKKKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRfgrDDFIGE 84

                          90
                  ....*....|
gi 755530196  283 LEFPLCRILP 292
Cdd:pfam00168  85 VRIPLSELDS 94
SMP_LBD pfam17047
Synaptotagmin-like mitochondrial-lipid-binding domain; SMP is a proposed lipid-binding module, ...
 1-30 7.98e-05

Synaptotagmin-like mitochondrial-lipid-binding domain; SMP is a proposed lipid-binding module, ie a synaptotagmin-like mitochondrial-lipid-binding domain found in eukaryotes. The SMP domain has a beta-barrel structure like protein modules in the tubular-lipid-binding (TULIP) superfamily. It dimerizes to form an approximately 90-Angstrom-long cylinder traversed by a channel lined entirely with hydrophobic residues. The following two C2 domains then form arched structures flexibly linked to the SMP domain. The SMP domain is a lipid-binding domain that links the ER with other lipid bilayer-membranes within the cell.


Pssm-ID: 465339  Cd Length: 180  Bit Score: 43.87  E-value: 7.98e-05
                          10        20        30
                  ....*....|....*....|....*....|
gi 755530196    1 MPGINELSDSLLEDLIAAHLVLPNRVTVPV 30
Cdd:pfam17047 150 VPGLNGLSDTIILDIISNYLVLPNRITVPL 179
 
Name Accession Description Interval E-value
C2C_KIAA1228 cd04030
C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins ...
 495-620 1.13e-63

C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins are uncharacterized human proteins. They were compiled by the Kazusa mammalian cDNA project which identified more than 2000 human genes. They are identified by 4 digit codes that precede the KIAA designation. Many KIAA genes are still functionally uncharacterized including KIAA1228. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175996 [Multi-domain]  Cd Length: 127  Bit Score: 205.97  E-value: 1.13e-63
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 495 RLGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSS-GADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGE 573
Cdd:cd04030    1 PLGRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSdIPDPYVRLYLLPDKSKSTRRKTSVKKDNLNPVFDETFEFPVSLEE 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*..
gi 755530196 574 VQKRSLDVAVKNSRPLGSHRRKELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd04030   81 LKRRTLDVAVKNSKSFLSREKKLLGQVLIDLSDLDLSKGFTQWYDLT 127
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
 46-164 9.21e-58

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 190.20  E-value: 9.21e-58
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFLG--LGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:cd08391    1 GVLRIHVIEAQDLVAKDKFVGglVKGKSDPYVIVRVGAQTFKSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDEDPD 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 124 KDDFLGSLQICLGDVMKNRVVDEWFALNDTTSGRLHLRLEW 164
Cdd:cd08391   81 KDDFLGRLSIDLGSVEKKGFIDEWLPLEDVKSGRLHLKLEW 121
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 185-308 2.10e-34

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 126.14  E-value: 2.10e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 185 ILVVFLENACNLPrnpfdylngeyrakklsrfvKNKASRDPSSYVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAA 264
Cdd:cd04050    1 LLFVYLDSAKNLP--------------------LAKSTKEPSPYVELTVGKTTQKSKVKERTNNPVWEEGFTFLVRNPEN 60

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 755530196 265 EQLCLKVLDDELECALGVLEFPLCRILPCADLTLEQCFQLDHSG 308
Cdd:cd04050   61 QELEIEVKDDKTGKSLGSLTLPLSELLKEPDLTLDQPFPLDNSG 104
C2A_Synaptotagmin-like cd04024
C2 domain first repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 46-164 9.32e-29

C2 domain first repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 175990 [Multi-domain]  Cd Length: 128  Bit Score: 110.98  E-value: 9.32e-29
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDnfLGLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDED-TDK 124
Cdd:cd04024    1 GVLRVHVVEAKDLAAKD--RSGKGKSDPYAILSVGAQRFKTQTIPNTLNPKWNYWCEFPIFSAQNQLLKLILWDKDrFAG 78

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|
gi 755530196 125 DDFLGSLQICLGDVM---KNRVVDEWFALNDT-------TSGRLHLRLEW 164
Cdd:cd04024   79 KDYLGEFDIALEEVFadgKTGQSDKWITLKSTrpgktsvVSGEIHLQFSW 128
C2 pfam00168
C2 domain;
46-150 8.13e-27

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 104.71  E-value: 8.13e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHC--RSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:pfam00168   1 GRLTVTVIEAKNLPPKD----GNGTSDPYVKVYLLDGKQkkKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRF 76

                          90       100
                  ....*....|....*....|....*...
gi 755530196  124 -KDDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:pfam00168  77 gRDDFIGEVRIPLSELDSGEGLDGWYPL 104
C2 cd00030
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ...
 48-150 5.17e-24

C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175973 [Multi-domain]  Cd Length: 102  Bit Score: 96.75  E-value: 5.17e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIG-LQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD-KD 125
Cdd:cd00030    1 LRVTVIEARNLPAKD----LNGKSDPYVKVSLGgKQKFKTKVVKNTLNPVWNETFEFPVLDPESDTLTVEVWDKDRFsKD 76

                         90       100
                 ....*....|....*....|....*.
gi 755530196 126 DFLGSLQICLGDV-MKNRVVDEWFAL 150
Cdd:cd00030   77 DFLGEVEIPLSELlDSGKEGELWLPL 102
C2A_SLP cd08521
C2 domain first repeat present in Synaptotagmin-like proteins; All Slp members basically share ...
 497-619 9.09e-24

C2 domain first repeat present in Synaptotagmin-like proteins; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike the case in Slp3 and Slp4/granuphilin in which their C2A domains are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp3 and Slp4/granuphilin promote dense-core vesicle exocytosis. Slp5 mRNA has been shown to be restricted to human placenta and liver suggesting a role in Rab27A-dependent membrane trafficking in specific tissues. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176056 [Multi-domain]  Cd Length: 123  Bit Score: 96.56  E-value: 9.09e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG--ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd08521    1 GEIEFSLSYNYKTGSLEVHIKECRNLAYADEKKkrSNPYVKVYLLPDKSKQSKRKTSVKKNTTNPVFNETLKYHISKSQL 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 575 QKRSLDVAVKNSRPLGshRRKELGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:cd08521   81 ETRTLQLSVWHHDRFG--RNTFLGEVEIPLDSWDLDSQQSEWYPL 123
C2A_SLP-1_2 cd08393
C2 domain first repeat present in Synaptotagmin-like proteins 1 and 2; All Slp members ...
 497-619 1.11e-21

C2 domain first repeat present in Synaptotagmin-like proteins 1 and 2; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike Slp3 and Slp4/granuphilin which are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176039 [Multi-domain]  Cd Length: 125  Bit Score: 90.95  E-value: 1.11e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG--ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd08393    2 GSVQFALDYDPKLRELHVHVIQCQDLAAADPKKqrSDPYVKTYLLPDKSNRGKRKTSVKKKTLNPVFNETLRYKVEREEL 81

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 575 QKRSLDVAVKNSRPLGshRRKELGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:cd08393   82 PTRVLNLSVWHRDSLG--RNSFLGEVEVDLGSWDWSNTQPTWYPL 124
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 47-147 4.87e-21

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 88.31  E-value: 4.87e-21
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196    47 VIRVHLLEAKKLAQKDNFlglgGKSDPYAKVSIGLQHC---RSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTD 123
Cdd:smart00239   1 TLTVKIISARNLPPKDKG----GKSDPYVKVSLDGDPKekkKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRF 76

                           90       100
                   ....*....|....*....|....*
gi 755530196   124 -KDDFLGSLQICLGDVMKNRVVDEW 147
Cdd:smart00239  77 gRDDFIGQVTIPLSDLLLGGRHEKL 101
C2 pfam00168
C2 domain;
512-619 9.88e-21

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 87.37  E-value: 9.88e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLperRWASRKKTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPLG 590
Cdd:pfam00168   3 LTVTVIEAKNLPPKDGNGtSDPYVKVYLL---DGKQKKKTKVVKNTLNPVWNETFTFSVP--DPENAVLEIEVYDYDRFG 77

                          90       100
                  ....*....|....*....|....*....
gi 755530196  591 SHRRkeLGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:pfam00168  78 RDDF--IGEVRIPLSELDSGEGLDGWYPL 104
C2A_Synaptotagmin-15-17 cd08390
C2A domain first repeat present in Synaptotagmins 15 and 17; Synaptotagmin is a ...
 497-616 8.65e-20

C2A domain first repeat present in Synaptotagmins 15 and 17; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. It is thought to be involved in the trafficking and exocytosis of secretory vesicles in non-neuronal tissues and is Ca2+ independent. Human synaptotagmin 15 has 2 alternatively spliced forms that encode proteins with different C-termini. The larger, SYT15a, contains a N-terminal TM region, a putative fatty-acylation site, and 2 tandem C terminal C2 domains. The smaller, SYT15b, lacks the C-terminal portion of the second C2 domain. Unlike most other synaptotagmins it is nearly absent in the brain and rather is found in the heart, lungs, skeletal muscle, and testis. Synaptotagmin 17 is located in the brain, kidney, and prostate and is thought to be a peripheral membrane protein. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176036 [Multi-domain]  Cd Length: 123  Bit Score: 85.39  E-value: 8.65e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGA--DPYVRIYLLP-ERRwasRKKTSVKQKTLEPLFDETFEFFVPMGE 573
Cdd:cd08390    1 GRLWFSVQYDLEEEQLTVSLIKARNLPPRTKDVAhcDPFVKVCLLPdERR---SLQSKVKRKTQNPNFDETFVFQVSFKE 77

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 755530196 574 VQKRSLDVAVKNSRplGSHRRKELGKVLIDLSKQDLIKGFSQW 616
Cdd:cd08390   78 LQRRTLRLSVYDVD--RFSRHCIIGHVLFPLKDLDLVKGGVVW 118
C2A_RIM1alpha cd04031
C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are ...
 497-619 4.06e-19

C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are believed to organize specialized sites of the plasma membrane called active zones. They also play a role in controlling neurotransmitter release, plasticity processes, as well as memory and learning. RIM contains an N-terminal zinc finger domain, a PDZ domain, and two C-terminal C2 domains (C2A, C2B). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology and do not bind Ca2+.


Pssm-ID: 175997 [Multi-domain]  Cd Length: 125  Bit Score: 83.45  E-value: 4.06e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFF-VPMGEV 574
Cdd:cd04031    3 GRIQIQLWYDKVTSQLIVTVLQARDLPPRDDGSlRNPYVKVYLLPDRSEKSKRRTKTVKKTLNPEWNQTFEYSnVRRETL 82

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 575 QKRSLDVAVKNSRPLGSHrrKELGKVLIDLSKQdLIKGFSQWYEL 619
Cdd:cd04031   83 KERTLEVTVWDYDRDGEN--DFLGEVVIDLADA-LLDDEPHWYPL 124
C2C_Tricalbin-like cd04045
C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 46-140 5.64e-19

C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 176010 [Multi-domain]  Cd Length: 120  Bit Score: 83.02  E-value: 5.64e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLaqkDNfLGLGGKSDPYAKVSI-GLQHCRSRTIYKNLNPTWNEVFEFMVYEvPGQDLEVDLYDEDTD- 123
Cdd:cd04045    1 GVLRLHIRKANDL---KN-LEGVGKIDPYVRVLVnGIVKGRTVTISNTLNPVWDEVLYVPVTS-PNQKITLEVMDYEKVg 75

                         90
                 ....*....|....*..
gi 755530196 124 KDDFLGSLQICLGDVMK 140
Cdd:cd04045   76 KDRSLGSVEINVSDLIK 92
C2B_PI3K_class_II cd08381
C2 domain second repeat present in class II phosphatidylinositol 3-kinases (PI3Ks); There are ...
 497-620 7.01e-19

C2 domain second repeat present in class II phosphatidylinositol 3-kinases (PI3Ks); There are 3 classes of PI3Ks based on structure, regulation, and specificity. All classes contain a N-terminal C2 domain, a PIK domain, and a kinase catalytic domain. Unlike class I and class III, class II PI3Ks have additionally a PX domain and a C-terminal C2 domain containing a nuclear localization signal both of which bind phospholipids though in a slightly different fashion. PI3Ks (AKA phosphatidylinositol (PtdIns) 3-kinases) regulate cell processes such as cell growth, differentiation, proliferation, and motility. PI3Ks work on phosphorylation of phosphatidylinositol, phosphatidylinositide (4)P (PtdIns (4)P),2 or PtdIns(4,5)P2. Specifically they phosphorylate the D3 hydroxyl group of phosphoinositol lipids on the inositol ring. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176027 [Multi-domain]  Cd Length: 122  Bit Score: 82.73  E-value: 7.01e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVclRHCLRVLVNGCRNLTPCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEF-FVPMGEVQ 575
Cdd:cd08381    2 GQVKLSISYK--NGTLFVMVMHAKNLPLLDGSDPDPYVKTYLLPDPQKTTKRKTKVVRKTRNPTFNEMLVYdGLPVEDLQ 79

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 755530196 576 KRSLDVAVKNSrplGSHRRKE-LGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd08381   80 QRVLQVSVWSH---DSLVENEfLGGVCIPLKKLDLSQETEKWYPLG 122
C2C_MCTP_PRT cd08377
C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 46-152 1.26e-18

C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. The cds in this family contain multiple C2 domains as well as a C-terminal PRT domain. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 176023 [Multi-domain]  Cd Length: 119  Bit Score: 81.96  E-value: 1.26e-18
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMV---YEVpgqdLEVDLYDEDT 122
Cdd:cd08377    1 GFLQVKVIRASGLAAAD----IGGKSDPFCVLELVNARLQTHTIYKTLNPEWNKIFTFPIkdiHDV----LEVTVYDEDK 72

                         90       100       110
                 ....*....|....*....|....*....|.
gi 755530196 123 DKD-DFLGSLQICLGDVmKNRVVDeWFALND 152
Cdd:cd08377   73 DKKpEFLGKVAIPLLSI-KNGERK-WYALKD 101
C2B_Rabphilin_Doc2 cd08384
C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
 499-583 7.74e-18

C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176030 [Multi-domain]  Cd Length: 133  Bit Score: 80.08  E-value: 7.74e-18
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 499 IQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQKR 577
Cdd:cd08384    2 ILVSLMYNTQRRGLIVGIIRCVNLAAMDANGySDPFVKLYLKPDAGKKSKHKTQVKKKTLNPEFNEEFFYDIKHSDLAKK 81


                 ....*.
gi 755530196 578 SLDVAV 583
Cdd:cd08384   82 TLEITV 87
C2A_MCTP_PRT cd04042
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 49-145 1.16e-17

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176007 [Multi-domain]  Cd Length: 121  Bit Score: 79.24  E-value: 1.16e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  49 RVHLLEAKKLAQKDnflgLGGKSDPYAKVSI-GLQHCRSRTIYKNLNPTWNEVFEFMVyEVPGQDLEVDLYDED-TDKDD 126
Cdd:cd04042    3 DIHLKEGRNLAARD----RGGTSDPYVKFKYgGKTVYKSKTIYKNLNPVWDEKFTLPI-EDVTQPLYIKVFDYDrGLTDD 77

                         90
                 ....*....|....*....
gi 755530196 127 FLGSLQICLGDVMKNRVVD 145
Cdd:cd04042   78 FMGSAFVDLSTLELNKPTE 96
C2B_Synaptotagmin-1 cd08402
C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking ...
 496-602 1.43e-17

C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a member of the class 1 synaptotagmins, is located in the brain and endocranium and localized to the synaptic vesicles and secretory granules. It functions as a Ca2+ sensor for fast exocytosis. It, like synaptotagmin-2, has an N-glycosylated N-terminus. Synaptotagmin 4, a member of class 4 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmin-11, has an Asp to Ser substitution in its C2A domain. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176047 [Multi-domain]  Cd Length: 136  Bit Score: 79.37  E-value: 1.43e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd08402    1 LGDICFSLRYVPTAGKLTVVILEAKNLKKMDVGGlSDPYVKIHLMQNGKRLKKKKTTIKKRTLNPYYNESFSFEVPFEQI 80

                         90       100
                 ....*....|....*....|....*...
gi 755530196 575 QKRSLDVAVKNSRPLGSHRRkeLGKVLI 602
Cdd:cd08402   81 QKVHLIVTVLDYDRIGKNDP--IGKVVL 106
C2A_SLP-3 cd08392
C2 domain first repeat present in Synaptotagmin-like protein 3; All Slp members basically ...
 497-619 2.23e-17

C2 domain first repeat present in Synaptotagmin-like protein 3; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. SHD of Slp (except for the Slp4-SHD) function as a specific Rab27A/B-binding domain. In addition to Slp, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. Little is known about the expression or localization of Slp3. The C2A domain of Slp3 is Ca2+ dependent. It has been demonstrated that Slp3 promotes dense-core vesicle exocytosis. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176038 [Multi-domain]  Cd Length: 128  Bit Score: 78.72  E-value: 2.23e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLT--PCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd08392    2 GEIEFALHYNFRTSCLEITIKACRNLAygDEKKKKCHPYVKVCLLPDKSHNSKRKTAVKKGTVNPVFNETLKYVVEADLL 81

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*...
gi 755530196 575 QKRSLDVAVKNSRPLgsHRRKELGKVLIDLSKQDLIKGFSQ---WYEL 619
Cdd:cd08392   82 SSRQLQVSVWHSRTL--KRRVFLGEVLIPLADWDFEDTDSQrflWYPL 127
C2B_MCTP_PRT cd08376
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 47-160 4.64e-17

C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176022 [Multi-domain]  Cd Length: 116  Bit Score: 77.30  E-value: 4.64e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDT-DKD 125
Cdd:cd08376    1 VVTIVLVEGKNLPPMDD----NGLSDPYVKFRLGNEKYKSKVCSKTLNPQWLEQFDLHLFDDQSQILEIEVWDKDTgKKD 76

                         90       100       110
                 ....*....|....*....|....*....|....*
gi 755530196 126 DFLGSLQICLGDVMKNRVVDEWFALNDTTsGRLHL 160
Cdd:cd08376   77 EFIGRCEIDLSALPREQTHSLELELEDGE-GSLLL 110
C2A_Synaptotagmin-1-5-6-9-10 cd08385
C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10; Synaptotagmin is a ...
 496-621 6.68e-17

C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a member of class 1 synaptotagmins, is located in the brain and endocranium and localized to the synaptic vesicles and secretory granules. It functions as a Ca2+ sensor for fast exocytosis as do synaptotagmins 5, 6, and 10. It is distinguished from the other synaptotagmins by having an N-glycosylated N-terminus. Synaptotagmins 5, 6, and 10, members of class 3 synaptotagmins, are located primarily in the brain and localized to the active zone and plasma membrane. They is distinguished from the other synaptotagmins by having disulfide bonds at its N-terminus. Synaptotagmin 6 also regulates the acrosome reaction, a unique Ca2+-regulated exocytosis, in sperm. Synaptotagmin 9, a class 5 synaptotagmins, is located in the brain and localized to the synaptic vesicles. It is thought to be a Ca2+-sensor for dense-core vesicle exocytosis. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176031 [Multi-domain]  Cd Length: 124  Bit Score: 77.31  E-value: 6.68e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGA-DPYVRIYLLPERRwasrKK--TSVKQKTLEPLFDETFEFFVPMG 572
Cdd:cd08385    2 LGKLQFSLDYDFQSNQLTVGIIQAADLPAMDMGGTsDPYVKVYLLPDKK----KKfeTKVHRKTLNPVFNETFTFKVPYS 77

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*....
gi 755530196 573 EVQKRSLDVAVKNSRPLGSHrrKELGKVLIDLSKQDLIKGFSQWYELTA 621
Cdd:cd08385   78 ELGNKTLVFSVYDFDRFSKH--DLIGEVRVPLLTVDLGHVTEEWRDLES 124
C2 cd00030
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ...
 512-619 1.47e-16

C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175973 [Multi-domain]  Cd Length: 102  Bit Score: 75.57  E-value: 1.47e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWasrkKTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPLG 590
Cdd:cd00030    1 LRVTVIEARNLPAKDLNGkSDPYVKVSLGGKQKF----KTKVVKNTLNPVWNETFEFPVL--DPESDTLTVEVWDKDRFS 74

                         90       100       110
                 ....*....|....*....|....*....|
gi 755530196 591 SHRRkeLGKVLIDLSK-QDLIKGFSQWYEL 619
Cdd:cd00030   75 KDDF--LGEVEIPLSElLDSGKEGELWLPL 102
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 512-616 2.98e-16

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 74.45  E-value: 2.98e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRwaSRKKTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPLG 590
Cdd:smart00239   2 LTVKIISARNLPPKDKGGkSDPYVKVSLDGDPK--EKKKTKVVKNTLNPVWNETFEFEVP--PPELAELEIEVYDKDRFG 77

                           90       100
                   ....*....|....*....|....*.
gi 755530196   591 SHRRkeLGKVLIDLSkqDLIKGFSQW 616
Cdd:smart00239  78 RDDF--IGQVTIPLS--DLLLGGRHE 99
C2B_Synaptotagmin cd00276
C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking ...
 497-621 8.71e-16

C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. There are several classes of Synaptotagmins. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175975 [Multi-domain]  Cd Length: 134  Bit Score: 74.16  E-value: 8.71e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd00276    1 GELLLSLSYLPTAERLTVVVLKARNLPPSDGKGlSDPYVKVSLLQGGKKLKKKKTSVKKGTLNPVFNEAFSFDVPAEQLE 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 755530196 576 KRSLDVAVKNSRPLGSHRrkELGKVLIDLSKQDLikGFSQWYELTA 621
Cdd:cd00276   81 EVSLVITVVDKDSVGRNE--VIGQVVLGPDSGGE--ELEHWNEMLA 122
C2A_Synaptotagmin-4-11 cd08388
C2A domain first repeat present in Synaptotagmins 4 and 11; Synaptotagmin is a ...
 496-583 1.40e-15

C2A domain first repeat present in Synaptotagmins 4 and 11; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmins 4 and 11, class 4 synaptotagmins, are located in the brain. Their functions are unknown. They are distinguished from the other synaptotagmins by having and Asp to Ser substitution in their C2A domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176034 [Multi-domain]  Cd Length: 128  Bit Score: 73.54  E-value: 1.40e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTP-----CTSsgaDPYVRIYLLPERRwaSRKKTSVKQKTLEPLFDETFEFF-V 569
Cdd:cd08388    2 LGTLFFSLRYNSEKKALLVNIIECRDLPAmdeqsGTS---DPYVKLQLLPEKE--HKVKTRVLRKTRNPVYDETFTFYgI 76

                         90
                 ....*....|....
gi 755530196 570 PMGEVQKRSLDVAV 583
Cdd:cd08388   77 PYNQLQDLSLHFAV 90
C2A_Rabphilin_Doc2 cd04035
C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
 496-606 1.74e-15

C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176000 [Multi-domain]  Cd Length: 123  Bit Score: 73.09  E-value: 1.74e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFF-VPMGE 573
Cdd:cd04035    1 LGTLEFTLLYDPANSALHCTIIRAKGLKAMDANGlSDPYVKLNLLPGASKATKLRTKTVHKTRNPEFNETLTYYgITEED 80

                         90       100       110
                 ....*....|....*....|....*....|...
gi 755530196 574 VQKRSLDVAVKNSRPLGShrrKELGKVLIDLSK 606
Cdd:cd04035   81 IQRKTLRLLVLDEDRFGN---DFLGETRIPLKK 110
C2B_Munc13-like cd04009
C2 domain second repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
 500-570 2.15e-15

C2 domain second repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175976 [Multi-domain]  Cd Length: 133  Bit Score: 73.04  E-value: 2.15e-15
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 755530196 500 QLTVR--YVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRW--ASRKKTSVKQKTLEPLFDETFEFFVP 570
Cdd:cd04009    4 VLTVKayYRASEQSLRVEILNARNLLPLDSNGsSDPFVKVELLPRHLFpdVPTPKTQVKKKTLFPLFDESFEFNVP 79
C2_ArfGAP cd04038
C2 domain present in Arf GTPase Activating Proteins (GAP); ArfGAP is a GTPase activating ...
 46-139 7.64e-15

C2 domain present in Arf GTPase Activating Proteins (GAP); ArfGAP is a GTPase activating protein which regulates the ADP ribosylation factor Arf, a member of the Ras superfamily of GTP-binding proteins. The GTP-bound form of Arf is involved in Golgi morphology and is involved in recruiting coat proteins. ArfGAP is responsible for the GDP-bound form of Arf which is necessary for uncoating the membrane and allowing the Golgi to fuse with an acceptor compartment. These proteins contain an N-terminal ArfGAP domain containing the characteristic zinc finger motif (Cys-x2-Cys-x(16,17)-x2-Cys) and C-terminal C2 domain. C2 domains were first identified in Protein Kinase C (PKC). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176003 [Multi-domain]  Cd Length: 145  Bit Score: 71.97  E-value: 7.64e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFlglggKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQdLEVDLYDEDT-DK 124
Cdd:cd04038    2 GLLKVRVVRGTNLAVRDFT-----SSDPYVVLTLGNQKVKTRVIKKNLNPVWNEELTLSVPNPMAP-LKLEVFDKDTfSK 75

                         90
                 ....*....|....*
gi 755530196 125 DDFLGSLQICLGDVM 139
Cdd:cd04038   76 DDSMGEAEIDLEPLV 90
C2B_RasA1_RasA4 cd04025
C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase ...
 48-150 1.06e-14

C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase activating protein 1s ), Ras-specific GAP members, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. Both proteins contain two C2 domains, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175991 [Multi-domain]  Cd Length: 123  Bit Score: 70.98  E-value: 1.06e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDED-TDKDD 126
Cdd:cd04025    2 LRCHVLEARDLAPKD----RNGTSDPFVRVFYNGQTLETSVVKKSCYPRWNEVFEFELMEGADSPLSVEVWDWDlVSKND 77

                         90       100
                 ....*....|....*....|....
gi 755530196 127 FLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:cd04025   78 FLGKVVFSIQTLQQAKQEEGWFRL 101
C2A_SLP-4_5 cd04029
C2 domain first repeat present in Synaptotagmin-like proteins 4 and 5; All Slp members ...
 497-619 1.19e-14

C2 domain first repeat present in Synaptotagmin-like proteins 4 and 5; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. SHD of Slp (except for the Slp4-SHD) function as a specific Rab27A/B-binding domain. In addition to Slp, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp4/granuphilin promotes dense-core vesicle exocytosis. The C2A domain of Slp4 is Ca2+ dependent. Slp5 mRNA has been shown to be restricted to human placenta and liver suggesting a role in Rab27A-dependent membrane trafficking in specific tissues. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 175995 [Multi-domain]  Cd Length: 125  Bit Score: 70.93  E-value: 1.19e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG--ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd04029    2 GEILFSLSYDYKTQSLNVHVKECRNLAYGDEAKkrSNPYVKTYLLPDKSRQSKRKTSIKRNTTNPVYNETLKYSISHSQL 81

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 575 QKRSLDVAVKNSRPLGshRRKELGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:cd04029   82 ETRTLQLSVWHYDRFG--RNTFLGEVEIPLDSWNFDSQHEECLPL 124
C2_PKC_alpha_gamma cd04026
C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha ...
 497-577 2.20e-14

C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha and gamma. The PKC family of serine/threonine kinases regulates apoptosis, proliferation, migration, motility, chemo-resistance, and differentiation. There are 3 groups: group 1(alpha, betaI, beta II, gamma) which require phospholipids and calcium, group 2 (delta, epsilon, theta, eta) which do not require calcium for activation, and group 3 (xi, iota/lambda) which are atypical and can be activated in the absence of diacylglycerol and calcium. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 175992 [Multi-domain]  Cd Length: 131  Bit Score: 70.37  E-value: 2.20e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRhcLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd04026    2 GRIYLKISVKDNK--LTVEVREAKNLIPMDPNGlSDPYVKLKLIPDPKNETKQKTKTIKKTLNPVWNETFTFDLKPADKD 79


                 ..
gi 755530196 576 KR 577
Cdd:cd04026   80 RR 81
C2D_Tricalbin-like cd04040
C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 48-166 2.97e-14

C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fifth C2 repeat, C2E, and has a type-II topology.


Pssm-ID: 176005 [Multi-domain]  Cd Length: 115  Bit Score: 69.13  E-value: 2.97e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHC-RSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDED-TDKD 125
Cdd:cd04040    1 LTVDVISAENLPSAD----RNGKSDPFVKFYLNGEKVfKTKTIKKTLNPVWNESFEVPVPSRVRAVLKVEVYDWDrGGKD 76

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 126 DFLGSLQICLGDVMKNRVVDewFALNDTTSGRLHLRLEWLS 166
Cdd:cd04040   77 DLLGSAYIDLSDLEPEETTE--LTLPLDGQGGGKLGAVFLP 115
C2A_Synaptotagmin-8 cd08387
C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking ...
 495-616 1.02e-13

C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176033 [Multi-domain]  Cd Length: 124  Bit Score: 68.20  E-value: 1.02e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 495 RLGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRwaSRKKTSVKQKTLEPLFDETFEFFVPMGE 573
Cdd:cd08387    1 TRGELHFSLEYDKDMGILNVKLIQARNLQPRDFSGtADPYCKVRLLPDRS--NTKQSKIHKKTLNPEFDESFVFEVPPQE 78

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 755530196 574 VQKRSLDVAVKNSRPLGSHRRkeLGKVLIDLSKQDLIKGFSQW 616
Cdd:cd08387   79 LPKRTLEVLLYDFDQFSRDEC--IGVVELPLAEVDLSEKLDLW 119
C2B_RasGAP cd08675
C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras ...
 512-627 1.10e-13

C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. The proteins here all contain two tandem C2 domains, a Ras-GAP domain, and a pleckstrin homology (PH)-like domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176057 [Multi-domain]  Cd Length: 137  Bit Score: 68.55  E-value: 1.10e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTSSGADPYVRIYLLPERRWASrKKTSVKQKTLEPLFDETFEF-------------FVPMGEVQKRS 578
Cdd:cd08675    1 LSVRVLECRDLALKSNGTCDPFARVTLNYSSKTDT-KRTKVKKKTNNPRFDEAFYFeltigfsyekksfKVEEEDLEKSE 79

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*....
gi 755530196 579 LDVAVKNSRPLGshRRKELGKVLIDLSKQDLIKGFSQWYELtadgQPRS 627
Cdd:cd08675   80 LRVELWHASMVS--GDDFLGEVRIPLQGLQQAGSHQAWYFL----QPRE 122
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
1-292 2.46e-13

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 73.64  E-value: 2.46e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196    1 MPGINELSDSLLEDLIAAHLVLPNRVTVPVKKGL-DVTNLrvplPCGVIRVHLLEAKKLAQKDNFLGlgGKSDPYAKV-S 78
Cdd:COG5038   394 IPGLSRFIQEIINSTLGPMLLPPNSLTIDISQIMaGDSGT----AIGVVEVKIKSAEGLKKSDSTIN--GTVDPYITVtF 467

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   79 IGLQHCRSRTIYKNLNPTWNEVFeFMVYEVPGQDLEVDLYD-EDTDKDDFLGSLQICLGDVMKNRVVDEWFA---LNDTT 154
Cdd:COG5038   468 SDRVIGKTRVKKNTLNPVWNETF-YILLNSFTDPLNLSLYDfNSFKSDKVVGSTQLDLALLHQNPVKKNELYeflRNTKN 546

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  155 SGRLHLRLEW-------LSLLTDQEALTENDSGlstaILVVFLEnacnlprnpfdylngeyrakKLSRFVKNKASRDPSS 227
Cdd:COG5038   547 VGRLTYDLRFfpviedkKELKGSVEPLEDSNTG----ILKVTLR--------------------EVKALDELSSKKDNKS 602

                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 755530196  228 YVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDELECALGVLEFPLCRILP 292
Cdd:COG5038   603 AELYTNAKEVYSTGKLKFTNHPSWNLQYNVLVTDRKNSSIKVVTFDVQSGKVIATEGSTLPDLID 667
C2_NEDD4_NEDD4L cd04033
C2 domain present in the Human neural precursor cell-expressed, developmentally down-regulated ...
 47-165 3.34e-13

C2 domain present in the Human neural precursor cell-expressed, developmentally down-regulated 4 (NEDD4) and NEDD4-like (NEDD4L/NEDD42); Nedd4 and Nedd4-2 are two of the nine members of the Human Nedd4 family. All vertebrates appear to have both Nedd4 and Nedd4-2 genes. They are thought to participate in the regulation of epithelial Na+ channel (ENaC) activity. They also have identical specificity for ubiquitin conjugating enzymes (E2). Nedd4 and Nedd4-2 are composed of a C2 domain, 2-4 WW domains, and a ubiquitin ligase Hect domain. Their WW domains can bind PPxY (PY) or LPSY motifs, and in vitro studies suggest that WW3 and WW4 of both proteins bind PY motifs in the key substrates, with WW3 generally exhibiting higher affinity. Most Nedd4 family members, especially Nedd4-2, also have multiple splice variants, which might play different roles in regulating their substrates. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175999 [Multi-domain]  Cd Length: 133  Bit Score: 66.99  E-value: 3.34e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDNFlglgGKSDPYAKVSI----GLQHCRS---RTIYKNLNPTWNEVFEFMVyeVPGQD-LEVDLY 118
Cdd:cd04033    1 ILRVKVLAGIDLAKKDIF----GASDPYVKISLydpdGNGEIDSvqtKTIKKTLNPKWNEEFFFRV--NPREHrLLFEVF 74

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 755530196 119 DED-TDKDDFLGSLQICL------GDVMKNRVVDEWFALNDTTS-----GRLHLRLEWL 165
Cdd:cd04033   75 DENrLTRDDFLGQVEVPLnnlpteTPGNERRYTFKDYLLRPRSSksrvkGHLRLYMAYL 133
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 68-153 5.18e-13

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 65.28  E-value: 5.18e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  68 GGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTDKDdfLGSLQICLGDVMK--NRVVD 145
Cdd:cd04050   18 TKEPSPYVELTVGKTTQKSKVKERTNNPVWEEGFTFLVRNPENQELEIEVKDDKTGKS--LGSLTLPLSELLKepDLTLD 95


                 ....*...
gi 755530196 146 EWFALNDT 153
Cdd:cd04050   96 QPFPLDNS 103
C2A_RIM1alpha cd04031
C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are ...
 50-138 6.89e-13

C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are believed to organize specialized sites of the plasma membrane called active zones. They also play a role in controlling neurotransmitter release, plasticity processes, as well as memory and learning. RIM contains an N-terminal zinc finger domain, a PDZ domain, and two C-terminal C2 domains (C2A, C2B). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology and do not bind Ca2+.


Pssm-ID: 175997 [Multi-domain]  Cd Length: 125  Bit Score: 65.73  E-value: 6.89e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDNflglGGKSDPYAKVSIgLQHC------RSRTIYKNLNPTWNEVFEFMVyeVPGQDL-----EVDLY 118
Cdd:cd04031   20 VTVLQARDLPPRDD----GSLRNPYVKVYL-LPDRsekskrRTKTVKKTLNPEWNQTFEYSN--VRRETLkertlEVTVW 92

                         90       100
                 ....*....|....*....|.
gi 755530196 119 DEDTDK-DDFLGSLQICLGDV 138
Cdd:cd04031   93 DYDRDGeNDFLGEVVIDLADA 113
C2_fungal_Inn1p-like cd08681
C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 ...
 46-162 1.09e-12

C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 associates with the contractile actomyosin ring at the end of mitosis and is needed for cytokinesis. The C2 domain of Inn1, located at the N-terminus, is required for ingression of the plasma membrane. The C-terminus is relatively unstructured and contains eight PXXP motifs that are thought to mediate interaction of Inn1 with other proteins with SH3 domains in the cytokinesis proteins Hof1 (an F-BAR protein) and Cyk3 (whose overexpression can restore primary septum formation in Inn1Delta cells) as well as recruiting Inn1 to the bud-neck by binding to Cyk3. Inn1 and Cyk3 appear to cooperate in activating chitin synthase Chs2 for primary septum formation, which allows coordination of actomyosin ring contraction with ingression of the cleavage furrow. It is thought that the C2 domain of Inn1 helps to preserve the link between the actomyosin ring and the plasma membrane, contributing both to membrane ingression, as well as to stability of the contracting ring. Additionally, Inn1 might induce curvature of the plasma membrane adjacent to the contracting ring, thereby promoting ingression of the membrane. It has been shown that the C2 domain of human synaptotagmin induces curvature in target membranes and thereby contributes to fusion of these membranes with synaptic vesicles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176063 [Multi-domain]  Cd Length: 118  Bit Score: 64.96  E-value: 1.09e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFlglgGKSDPYAKVSIGLQHCRSRTIYK-NLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTDK 124
Cdd:cd08681    1 GTLVVVVLKARNLPNKRKL----DKQDPYCVLRIGGVTKKTKTDFRgGQHPEWDEELRFEITEDKKPILKVAVFDDDKRK 76

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|
gi 755530196 125 DDFLGSLQICLGDVMKNRVVDEWFAL--NDTTSGRLHLRL 162
Cdd:cd08681   77 PDLIGDTEVDLSPALKEGEFDDWYELtlKGRYAGEVYLEL 116
C2B_Synaptotagmin-7 cd08405
C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
 496-602 1.88e-12

C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176050 [Multi-domain]  Cd Length: 136  Bit Score: 64.75  E-value: 1.88e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEV 574
Cdd:cd08405    1 RGELLLSLCYNPTANRITVNIIKARNLKAMDINGtSDPYVKVWLMYKDKRVEKKKTVIKKRTLNPVFNESFIFNIPLERL 80

                         90       100
                 ....*....|....*....|....*...
gi 755530196 575 QKRSLDVAVKNSRPLGshRRKELGKVLI 602
Cdd:cd08405   81 RETTLIITVMDKDRLS--RNDLIGKIYL 106
C2A_Munc13-like cd08676
C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
 36-150 2.56e-12

C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176058 [Multi-domain]  Cd Length: 153  Bit Score: 65.09  E-value: 2.56e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  36 VTNLRVPLPCgvIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSI----------GLQH-------------------CRS 86
Cdd:cd08676   20 VREAEPPIFV--LKVTVIEAKGLLAKD----VNGFSDPYCMLGIvpasrernseKSKKrkshrkkavlkdtvpaksiKVT 93

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 755530196  87 RTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDtdkDDFLGSLQICLGDVMKNRvVDEWFAL 150
Cdd:cd08676   94 EVKPQTLNPVWNETFRFEVEDVSNDQLHLDIWDHD---DDFLGCVNIPLKDLPSCG-LDSWFKL 153
C2B_Synaptotagmin-4 cd08404
C2 domain second repeat present in Synaptotagmin 4; Synaptotagmin is a membrane-trafficking ...
 497-586 2.63e-12

C2 domain second repeat present in Synaptotagmin 4; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 4, a member of class 4 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmin-11, has an Asp to Ser substitution in its C2A domain. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176049 [Multi-domain]  Cd Length: 136  Bit Score: 64.37  E-value: 2.63e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08404    2 GELLLSLCYQPTTNRLTVVVLKARHLPKMDVSGlADPYVKVNLYYGKKRISKKKTHVKKCTLNPVFNESFVFDIPSEELE 81

                         90
                 ....*....|.
gi 755530196 576 KRSLDVAVKNS 586
Cdd:cd08404   82 DISVEFLVLDS 92
C2B_Tricalbin-like cd04052
C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 66-164 4.13e-12

C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176017 [Multi-domain]  Cd Length: 111  Bit Score: 63.00  E-value: 4.13e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  66 GLGGKSDPYAKVSIG--LQHcRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTDKDDFLGSLQICLGDVMKNR- 142
Cdd:cd04052    8 SKTGLLSPYAELYLNgkLVY-TTRVKKKTNNPSWNASTEFLVTDRRKSRVTVVVKDDRDRHDPVLGSVSISLNDLIDATs 86

                         90       100
                 ....*....|....*....|..
gi 755530196 143 VVDEWFALNDTTSGRLHLRLEW 164
Cdd:cd04052   87 VGQQWFPLSGNGQGRIRISALW 108
C2B_MCTP_PRT_plant cd08378
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 50-138 5.28e-12

C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176024 [Multi-domain]  Cd Length: 121  Bit Score: 63.10  E-value: 5.28e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAqkdnflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDTDKDDFLG 129
Cdd:cd08378    4 VRVVKARGLP--------ANSNDPVVEVKLGNYKGSTKAIERTSNPEWNQVFAFSKDRLQGSTLEVSVWDKDKAKDDFLG 75


                 ....*....
gi 755530196 130 SLQICLGDV 138
Cdd:cd08378   76 GVCFDLSEV 84
C2B_SLP_1-2-3-4 cd04020
C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically ...
 512-593 5.86e-12

C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike the case in Slp3 and Slp4/granuphilin in which their C2A domains are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp3 and Slp4/granuphilin promote dense-core vesicle exocytosis. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175987 [Multi-domain]  Cd Length: 162  Bit Score: 64.27  E-value: 5.86e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTSSGA-DPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEF--FVPmGEVQKRSLDVAVKNSRP 588
Cdd:cd04020   29 LHVWVKEAKNLPALKSGGTsDSFVKCYLLPDKSKKSKQKTPVVKKSVNPVWNHTFVYdgVSP-EDLSQACLELTVWDHDK 107


                 ....*
gi 755530196 589 LGSHR 593
Cdd:cd04020  108 LSSND 112
C2B_Synaptotagmin-12 cd08406
C2 domain second repeat present in Synaptotagmin 12; Synaptotagmin is a membrane-trafficking ...
 497-621 8.30e-12

C2 domain second repeat present in Synaptotagmin 12; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 12, a member of class 6 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmins 8 and 13, do not have any consensus Ca2+ binding sites. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176051 [Multi-domain]  Cd Length: 136  Bit Score: 62.89  E-value: 8.30e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLT-PCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08406    2 GEILLSLSYLPTAERLTVVVVKARNLVwDNGKTTADPFVKVYLLQDGRKISKKKTSVKRDDTNPIFNEAMIFSVPAIVLQ 81

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 755530196 576 KRSLDVAVKNSRPLGshRRKELGKVLIDLSKQDliKGFSQWYELTA 621
Cdd:cd08406   82 DLSLRVTVAESTEDG--KTPNVGHVIIGPAASG--MGLSHWNQMLA 123
C2_Intersectin cd08375
C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally ...
 46-142 2.70e-11

C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally in the intersectin protein. Intersectin functions as a scaffolding protein, providing a link between the actin cytoskeleton and the components of endocytosis and plays a role in signal transduction. In addition to C2, intersectin contains several additional domains including: Eps15 homology domains, SH3 domains, a RhoGEF domain, and a PH domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. The members here have topology I.


Pssm-ID: 176021 [Multi-domain]  Cd Length: 136  Bit Score: 61.63  E-value: 2.70e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDEDT-DK 124
Cdd:cd08375   15 GRLMVVIVEGRDLKPCNS----NGKSDPYCEVSMGSQEHKTKVVSDTLNPKWNSSMQFFVKDLEQDVLCITVFDRDFfSP 90

                         90
                 ....*....|....*...
gi 755530196 125 DDFLGSLQICLGDVMKNR 142
Cdd:cd08375   91 DDFLGRTEIRVADILKET 108
C2_PKC_alpha_gamma cd04026
C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha ...
 38-159 3.42e-11

C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha and gamma. The PKC family of serine/threonine kinases regulates apoptosis, proliferation, migration, motility, chemo-resistance, and differentiation. There are 3 groups: group 1(alpha, betaI, beta II, gamma) which require phospholipids and calcium, group 2 (delta, epsilon, theta, eta) which do not require calcium for activation, and group 3 (xi, iota/lambda) which are atypical and can be activated in the absence of diacylglycerol and calcium. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 175992 [Multi-domain]  Cd Length: 131  Bit Score: 61.12  E-value: 3.42e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  38 NLRVPLPCGVIRVHLLEAKKLAQKD-NflglgGKSDPYAKVSI-----GLQHCRSRTIYKNLNPTWNEVFefmVYEVPGQ 111
Cdd:cd04026    5 YLKISVKDNKLTVEVREAKNLIPMDpN-----GLSDPYVKLKLipdpkNETKQKTKTIKKTLNPVWNETF---TFDLKPA 76

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|...
gi 755530196 112 D----LEVDLYDED-TDKDDFLGSLQICLGDVMKnRVVDEWFALNDTTSGRLH 159
Cdd:cd04026   77 DkdrrLSIEVWDWDrTTRNDFMGSLSFGVSELIK-MPVDGWYKLLNQEEGEYY 128
C2A_Ferlin cd08373
C2 domain first repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 63-153 3.45e-11

C2 domain first repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176019 [Multi-domain]  Cd Length: 127  Bit Score: 60.73  E-value: 3.45e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  63 NFLGLGGKSDPYAKVSI-GLQHcRSRTIYKNLNPTWNEVFEFMVYEVPGQD--LEVDLYD-EDTDKDDFLGSLQICLGDV 138
Cdd:cd08373    7 NLPGLKGKGDRIAKVTFrGVKK-KTRVLENELNPVWNETFEWPLAGSPDPDesLEIVVKDyEKVGRNRLIGSATVSLQDL 85

                         90
                 ....*....|....*
gi 755530196 139 MKNRVVDEWFALNDT 153
Cdd:cd08373   86 VSEGLLEVTEPLLDS 100
C2B_Munc13 cd04027
C2 domain second repeat in Munc13 (mammalian uncoordinated) proteins; C2-like domains are ...
 48-160 4.91e-11

C2 domain second repeat in Munc13 (mammalian uncoordinated) proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 175993 [Multi-domain]  Cd Length: 127  Bit Score: 60.66  E-value: 4.91e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQdLEVDLYDEDTD---- 123
Cdd:cd04027    3 ISITVVCAQGLIAKDK----TGTSDPYVTVQVGKTKKRTKTIPQNLNPVWNEKFHFECHNSSDR-IKVRVWDEDDDiksr 77

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|...
gi 755530196 124 --------KDDFLGSLQIclgDVMK-NRVVDEWFALNDTT-----SG--RLHL 160
Cdd:cd04027   78 lkqkftreSDDFLGQTII---EVRTlSGEMDVWYNLEKRTdksavSGaiRLHI 127
C2B_Synaptotagmin-3-5-6-9-10 cd08403
C2 domain second repeat present in Synaptotagmins 3, 5, 6, 9, and 10; Synaptotagmin is a ...
 497-583 6.40e-11

C2 domain second repeat present in Synaptotagmins 3, 5, 6, 9, and 10; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 3, a member of class 3 synaptotagmins, is located in the brain and localized to the active zone and plasma membrane. It functions as a Ca2+ sensor for fast exocytosis. It, along with synaptotagmins 5,6, and 10, has disulfide bonds at its N-terminus. Synaptotagmin 9, a class 5 synaptotagmins, is located in the brain and localized to the synaptic vesicles. It is thought to be a Ca2+-sensor for dense-core vesicle exocytosis. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176048 [Multi-domain]  Cd Length: 134  Bit Score: 60.21  E-value: 6.40e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGA-DPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08403    1 GELMFSLCYLPTAGRLTLTIIKARNLKAMDITGFsDPYVKVSLMCEGRRLKKKKTSVKKNTLNPTYNEALVFDVPPENVD 80


                 ....*...
gi 755530196 576 KRSLDVAV 583
Cdd:cd08403   81 NVSLIIAV 88
C2A_Synaptotagmin-7 cd08386
C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
 495-620 9.86e-11

C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176032 [Multi-domain]  Cd Length: 125  Bit Score: 59.65  E-value: 9.86e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 495 RLGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRwaSRKKTSVKQKTLEPLFDETFEF--FvPM 571
Cdd:cd08386    1 NLGRIQFSVSYDFQESTLTLKILKAVELPAKDFSGtSDPFVKIYLLPDKK--HKLETKVKRKNLNPHWNETFLFegF-PY 77

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*....
gi 755530196 572 GEVQKRSLDVAVKNSRPLGshRRKELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd08386   78 EKLQQRVLYLQVLDYDRFS--RNDPIGEVSLPLNKVDLTEEQTFWKDLK 124
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
 47-163 1.19e-10

C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is present in cPLA2 which releases arachidonic acid from membranes initiating the biosynthesis of potent inflammatory mediators such as prostaglandins, leukotrienes, and platelet-activating factor. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members of this cd have a type-II topology.


Pssm-ID: 176001 [Multi-domain]  Cd Length: 119  Bit Score: 59.20  E-value: 1.19e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDnFLGlggKSDPYAKVSI---GLQHCRSRTIYKNLNPTWNEVFEFMVYevPGQD--LEVDLYDED 121
Cdd:cd04036    1 LLTVRVLRATNITKGD-LLS---TPDCYVELWLptaSDEKKRTKTIKNSINPVWNETFEFRIQ--SQVKnvLELTVMDED 74

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|..
gi 755530196 122 TDKDDFLGSLQICLGDVMKNRVVDEWFALNDTTSGRLHLRLE 163
Cdd:cd04036   75 YVMDDHLGTVLFDVSKLKLGEKVRVTFSLNPQGKEELEVEFL 116
C2D_Ferlin cd04017
C2 domain fourth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 49-130 1.25e-10

C2 domain fourth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fourth C2 repeat, C2D, and has a type-II topology.


Pssm-ID: 175984 [Multi-domain]  Cd Length: 135  Bit Score: 59.48  E-value: 1.25e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  49 RVHLLEAKKL--AQKDNFlglggkSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPG--QDLE-------VDL 117
Cdd:cd04017    4 RAYIYQARDLlaADKSGL------SDPFARVSFLNQSQETEVIKETLSPTWDQTLIFDEVELYGspEEIAqnpplvvVEL 77

                         90
                 ....*....|....
gi 755530196 118 YDEDTD-KDDFLGS 130
Cdd:cd04017   78 FDQDSVgKDEFLGR 91
C2B_Copine cd04047
C2 domain second repeat in Copine; There are 2 copies of the C2 domain present in copine, a ...
 46-145 1.28e-10

C2 domain second repeat in Copine; There are 2 copies of the C2 domain present in copine, a protein involved in membrane trafficking, protein-protein interactions, and perhaps even cell division and growth. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176012 [Multi-domain]  Cd Length: 110  Bit Score: 58.73  E-value: 1.28e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLlEAKKLAQKDNFlglgGKSDPYAKVSIG------LQHCRSRTIYKNLNPTWNEvFEFMVYEVPGQD----LEV 115
Cdd:cd04047    1 DVVELQF-SGKKLDKKDFF----GKSDPFLEISRQsedgtwVLVYRTEVIKNTLNPVWKP-FTIPLQKLCNGDydrpIKI 74

                         90       100       110
                 ....*....|....*....|....*....|.
gi 755530196 116 DLYDEDTD-KDDFLGSLQICLGDVMKNRVVD 145
Cdd:cd04047   75 EVYDYDSSgKHDLIGEFETTLDELLKSSPLE 105
SMP_ESyt3 cd21681
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended ...
 1-32 1.48e-10

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended synaptotagmin-3 (E-Syt3) and similar proteins; Extended synaptotagmin-3 (E-Syt3), also called Chr3Syt, binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport. It tethers the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane. E-Syt3 consists of an N-terminal endoplasmic reticulum (ER)-membrane anchor, a central SMP-domain, and three C-terminal cytoplasmic C2-domains. The ER-membrane anchor and C2 domains are required for tethering, and the SMP domain may be implicated in lipid transport. This model corresponds to the SMP domain.


Pssm-ID: 439237  Cd Length: 177  Bit Score: 60.61  E-value: 1.48e-10
                         10        20        30
                 ....*....|....*....|....*....|..
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPVKK 32
Cdd:cd21681  146 IPGINDMSDSLIEDLIASHLVLPNRFTVPLKK 177
C2A_MCTP_PRT_plant cd04022
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 50-133 2.01e-10

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 175989 [Multi-domain]  Cd Length: 127  Bit Score: 58.89  E-value: 2.01e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEV---PGQDLEVDLYDE--DTDK 124
Cdd:cd04022    4 VEVVDAQDLMPKDG----QGSSSAYVELDFDGQKKRTRTKPKDLNPVWNEKLVFNVSDPsrlSNLVLEVYVYNDrrSGRR 79


                 ....*....
gi 755530196 125 DDFLGSLQI 133
Cdd:cd04022   80 RSFLGRVRI 88
C2B_Synaptotagmin-15 cd08409
C2 domain second repeat present in Synaptotagmin 15; Synaptotagmin is a membrane-trafficking ...
 496-602 2.69e-10

C2 domain second repeat present in Synaptotagmin 15; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. It is thought to be involved in the trafficking and exocytosis of secretory vesicles in non-neuronal tissues and is Ca2+ independent. Human synaptotagmin 15 has 2 alternatively spliced forms that encode proteins with different C-termini. The larger, SYT15a, contains a N-terminal TM region, a putative fatty-acylation site, and 2 tandem C terminal C2 domains. The smaller, SYT15b, lacks the C-terminal portion of the second C2 domain. Unlike most other synaptotagmins it is nearly absent in the brain and rather is found in the heart, lungs, skeletal muscle, and testis. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176054 [Multi-domain]  Cd Length: 137  Bit Score: 58.50  E-value: 2.69e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08409    1 LGDIQISLTYNPTLNRLTVVVLRARGLRQLDHAHTSVYVKVSLMIHNKVVKTKKTEVVDGAASPSFNESFSFKVTSRQLD 80

                         90       100
                 ....*....|....*....|....*..
gi 755530196 576 KRSLDVAVKNsrPLGSHRRKELGKVLI 602
Cdd:cd08409   81 TASLSLSVMQ--SGGVRKSKLLGRVVL 105
C2E_Ferlin cd04037
C2 domain fifth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 47-130 4.57e-10

C2 domain fifth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fifth C2 repeat, C2E, and has a type-II topology.


Pssm-ID: 176002 [Multi-domain]  Cd Length: 124  Bit Score: 57.56  E-value: 4.57e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHC--RSRTIYKNLNPTWNEVFEFMVyEVPG-QDLEVDLYDEDT- 122
Cdd:cd04037    1 LVRVYVVRARNLQPKD----PNGKSDPYLKIKLGKKKIndRDNYIPNTLNPVFGKMFELEA-TLPGnSILKISVMDYDLl 75


                 ....*...
gi 755530196 123 DKDDFLGS 130
Cdd:cd04037   76 GSDDLIGE 83
C2A_fungal cd04041
C2 domain first repeat; fungal group; C2 domains were first identified in Protein Kinase C ...
 46-142 4.64e-10

C2 domain first repeat; fungal group; C2 domains were first identified in Protein Kinase C (PKC). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176006 [Multi-domain]  Cd Length: 111  Bit Score: 57.27  E-value: 4.64e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNFLGlggKSDPYAKVSI---GLQHCRSRTIYKNLNPTWNEvfEFMVYEVP-----GQDLEVDL 117
Cdd:cd04041    1 GVLVVTIHRATDLPKADFGTG---SSDPYVTASFakfGKPLYSTRIIRKDLNPVWEE--TWFVLVTPdevkaGERLSCRL 75

                         90       100
                 ....*....|....*....|....*.
gi 755530196 118 YDED-TDKDDFLGSLQICLGDVMKNR 142
Cdd:cd04041   76 WDSDrFTADDRLGRVEIDLKELIEDR 101
C2B_RasGAP cd08675
C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras ...
 48-150 5.52e-10

C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. The proteins here all contain two tandem C2 domains, a Ras-GAP domain, and a pleckstrin homology (PH)-like domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176057 [Multi-domain]  Cd Length: 137  Bit Score: 57.77  E-value: 5.52e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNflglgGKSDPYAKVSIGLQHC----RSRTIYKNLNPTWNEVFEFMVYE----------VPGQDL 113
Cdd:cd08675    1 LSVRVLECRDLALKSN-----GTCDPFARVTLNYSSKtdtkRTKVKKKTNNPRFDEAFYFELTIgfsyekksfkVEEEDL 75

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 755530196 114 E-----VDLYDEDT-DKDDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:cd08675   76 EkselrVELWHASMvSGDDFLGEVRIPLQGLQQAGSHQAWYFL 118
C2B_RIM1alpha cd04028
C2 domain second repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are ...
 496-619 8.16e-10

C2 domain second repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are believed to organize specialized sites of the plasma membrane called active zones. They also play a role in controlling neurotransmitter release, plasticity processes, as well as memory and learning. RIM contains an N-terminal zinc finger domain, a PDZ domain, and two C-terminal C2 domains (C2A, C2B). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology and do not bind Ca2+.


Pssm-ID: 175994 [Multi-domain]  Cd Length: 146  Bit Score: 57.40  E-value: 8.16e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 496 LGEIQLTVRYVclRHCLRVLVNGCRNLT--PCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVpmgE 573
Cdd:cd04028   17 MGDIQLGLYDK--KGQLEVEVIRARGLVqkPGSKVLPAPYVKVYLLEGKKCIAKKKTKIARKTLDPLYQQQLVFDV---S 91

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|
gi 755530196 574 VQKRSLDVAVknsrpLGSHRRKE----LGKVLIDLSKQDLIKGFSQWYEL 619
Cdd:cd04028   92 PTGKTLQVIV-----WGDYGRMDkkvfMGVAQILLDDLDLSNLVIGWYKL 136
C2_putative_Elicitor-responsive_gene cd04049
C2 domain present in the putative elicitor-responsive gene; In plants elicitor-responsive ...
 46-138 1.00e-09

C2 domain present in the putative elicitor-responsive gene; In plants elicitor-responsive proteins are triggered in response to specific elicitor molecules such as glycolproteins, peptides, carbohydrates and lipids. A host of defensive responses are also triggered resulting in localized cell death. Antimicrobial secondary metabolites, such as phytoalexins, or defense-related proteins, including pathogenesis-related (PR) proteins are also produced. There is a single C2 domain present here. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members have a type-II topology.


Pssm-ID: 176014 [Multi-domain]  Cd Length: 124  Bit Score: 56.57  E-value: 1.00e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLaQKDNFLGlggKSDPYAKVSIGLQHCRSrTIYKNL--NPTWNEVFEFMVyEVPGQ----DLEVDLYD 119
Cdd:cd04049    1 GTLEVLLISAKGL-QDTDFLG---KIDPYVIIQCRTQERKS-KVAKGDgrNPEWNEKFKFTV-EYPGWggdtKLILRIMD 74

                         90       100
                 ....*....|....*....|
gi 755530196 120 EDT-DKDDFLGSLQICLGDV 138
Cdd:cd04049   75 KDNfSDDDFIGEATIHLKGL 94
C2A_Synaptotagmin-1-5-6-9-10 cd08385
C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10; Synaptotagmin is a ...
 50-147 1.26e-09

C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a member of class 1 synaptotagmins, is located in the brain and endocranium and localized to the synaptic vesicles and secretory granules. It functions as a Ca2+ sensor for fast exocytosis as do synaptotagmins 5, 6, and 10. It is distinguished from the other synaptotagmins by having an N-glycosylated N-terminus. Synaptotagmins 5, 6, and 10, members of class 3 synaptotagmins, are located primarily in the brain and localized to the active zone and plasma membrane. They is distinguished from the other synaptotagmins by having disulfide bonds at its N-terminus. Synaptotagmin 6 also regulates the acrosome reaction, a unique Ca2+-regulated exocytosis, in sperm. Synaptotagmin 9, a class 5 synaptotagmins, is located in the brain and localized to the synaptic vesicles. It is thought to be a Ca2+-sensor for dense-core vesicle exocytosis. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176031 [Multi-domain]  Cd Length: 124  Bit Score: 56.50  E-value: 1.26e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDnflgLGGKSDPYAKVSigLQHCRSRTI-----YKNLNPTWNEVFEFMV-Y-EVPGQDLEVDLYDEDT 122
Cdd:cd08385   20 VGIIQAADLPAMD----MGGTSDPYVKVY--LLPDKKKKFetkvhRKTLNPVFNETFTFKVpYsELGNKTLVFSVYDFDR 93

                         90       100
                 ....*....|....*....|....*.
gi 755530196 123 -DKDDFLGSLQICLGDVMKNRVVDEW 147
Cdd:cd08385   94 fSKHDLIGEVRVPLLTVDLGHVTEEW 119
C2A_Tricalbin-like cd04044
C2 domain first repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 45-141 3.10e-09

C2 domain first repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176009 [Multi-domain]  Cd Length: 124  Bit Score: 55.25  E-value: 3.10e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  45 CGVIRVHLLEAKKLAQKDnflGLGGKSDPYAKVSIGLQ--HCRSRTIYKNLNPTWNEVFEFMVYEVpGQDLEVDLYDE-D 121
Cdd:cd04044    1 IGVLAVTIKSARGLKGSD---IIGGTVDPYVTFSISNRreLARTKVKKDTSNPVWNETKYILVNSL-TEPLNLTVYDFnD 76

                         90       100
                 ....*....|....*....|
gi 755530196 122 TDKDDFLGSLQICLGDVMKN 141
Cdd:cd04044   77 KRKDKLIGTAEFDLSSLLQN 96
C2A_RasGAP cd08383
C2 domain (first repeat) of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras ...
 49-162 4.00e-09

C2 domain (first repeat) of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. The proteins here all contain either a single C2 domain or two tandem C2 domains, a Ras-GAP domain, and a pleckstrin homology (PH)-like domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176029 [Multi-domain]  Cd Length: 117  Bit Score: 54.58  E-value: 4.00e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  49 RVHLLEAKKLAQKdnflglgGKSDPYAKVSIGLQH-CRSRTIYKnLNPTWNEVFEFmvyEVPGQD-----LEVDLYDEDT 122
Cdd:cd08383    3 RLRILEAKNLPSK-------GTRDPYCTVSLDQVEvARTKTVEK-LNPFWGEEFVF---DDPPPDvtfftLSFYNKDKRS 71

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 755530196 123 -DKDDFLGSLQICLGDvmKNRVVDEWFALNDTTS-----GRLHLRL 162
Cdd:cd08383   72 kDRDIVIGKVALSKLD--LGQGKDEWFPLTPVDPdsevqGSVRLRA 115
C2A_Synaptotagmin-8 cd08387
C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking ...
 46-147 4.41e-09

C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176033 [Multi-domain]  Cd Length: 124  Bit Score: 54.72  E-value: 4.41e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIgLQHC----RSRTIYKNLNPTWNEVFEFMV--YEVPGQDLEVDLYD 119
Cdd:cd08387   16 GILNVKLIQARNLQPRD----FSGTADPYCKVRL-LPDRsntkQSKIHKKTLNPEFDESFVFEVppQELPKRTLEVLLYD 90

                         90       100
                 ....*....|....*....|....*....
gi 755530196 120 EDT-DKDDFLGSLQICLGDVMKNRVVDEW 147
Cdd:cd08387   91 FDQfSRDECIGVVELPLAEVDLSEKLDLW 119
C2 cd00030
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ...
 209-304 5.29e-09

C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175973 [Multi-domain]  Cd Length: 102  Bit Score: 54.00  E-value: 5.29e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 209 RAKKLSRFVKNKASrDPssYVKLTVG-KKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDEL---ECALGVLE 284
Cdd:cd00030    7 EARNLPAKDLNGKS-DP--YVKVSLGgKQKFKTKVVKNTLNPVWNETFEFPVLDPESDTLTVEVWDKDRfskDDFLGEVE 83

                         90       100
                 ....*....|....*....|
gi 755530196 285 FPLCRILPcADLTLEQCFQL 304
Cdd:cd00030   84 IPLSELLD-SGKEGELWLPL 102
C2B_Rabphilin_Doc2 cd08384
C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
 50-150 7.03e-09

C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176030 [Multi-domain]  Cd Length: 133  Bit Score: 54.66  E-value: 7.03e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDNflglGGKSDPYAKVSI----GLQHCRSRTIYK-NLNPTWNEVFEFMV--YEVPGQDLEVDLYDEDT 122
Cdd:cd08384   17 VGIIRCVNLAAMDA----NGYSDPFVKLYLkpdaGKKSKHKTQVKKkTLNPEFNEEFFYDIkhSDLAKKTLEITVWDKDI 92

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 123 DK-DDFLGSLQICLG----------DVMK--NRVVDEWFAL 150
Cdd:cd08384   93 GKsNDYIGGLQLGINakgerlrhwlDCLKnpDKKIEAWHTL 133
C2_Calpain cd04046
C2 domain present in Calpain proteins; A single C2 domain is found in calpains (EC 3.4.22.52, ...
 44-129 8.66e-09

C2 domain present in Calpain proteins; A single C2 domain is found in calpains (EC 3.4.22.52, EC 3.4.22.53), calcium-dependent, non-lysosomal cysteine proteases. Caplains are classified as belonging to Clan CA by MEROPS and include six families: C1, C2, C10, C12, C28, and C47. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176011 [Multi-domain]  Cd Length: 126  Bit Score: 54.21  E-value: 8.66e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  44 PCGVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEvPGQDLEVDLYDEDTD 123
Cdd:cd04046    1 PQVVTQVHVHSAEGLSKQD----SGGGADPYVIIKCEGESVRSPVQKDTLSPEFDTQAIFYRKK-PRSPIKIQVWNSNLL 75


                 ....*.
gi 755530196 124 KDDFLG 129
Cdd:cd04046   76 CDEFLG 81
C2B_Tricalbin-like cd04052
C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 532-626 2.07e-08

C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176017 [Multi-domain]  Cd Length: 111  Bit Score: 52.60  E-value: 2.07e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 532 PYVRIYLLPErrwaSRKKTSVKQKTLEPLFDETFEFFVPmgevQKRS--LDVAVKNSRplgSHRRKELGKVLIDLSkqDL 609
Cdd:cd04052   15 PYAELYLNGK----LVYTTRVKKKTNNPSWNASTEFLVT----DRRKsrVTVVVKDDR---DRHDPVLGSVSISLN--DL 81

                         90       100
                 ....*....|....*....|
gi 755530196 610 IKGFSQ---WYELTADGQPR 626
Cdd:cd04052   82 IDATSVgqqWFPLSGNGQGR 101
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
 211-274 3.12e-08

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 52.29  E-value: 3.12e-08
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 755530196 211 KKLSRFVKNKAsrDPssYVKLTVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDD 274
Cdd:cd08391   18 KFVGGLVKGKS--DP--YVIVRVGAQTFKSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDE 77
C2B_Synaptotagmin-17 cd08410
C2 domain second repeat present in Synaptotagmin 17; Synaptotagmin is a membrane-trafficking ...
 497-583 3.98e-08

C2 domain second repeat present in Synaptotagmin 17; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 17 is located in the brain, kidney, and prostate and is thought to be a peripheral membrane protein. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176055 [Multi-domain]  Cd Length: 135  Bit Score: 52.58  E-value: 3.98e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPC-TSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08410    1 GELLLSLNYLPSAGRLNVDIIRAKQLLQTdMSQGSDPFVKIQLVHGLKLIKTKKTSCMRGTIDPFYNESFSFKVPQEELE 80


                 ....*...
gi 755530196 576 KRSLDVAV 583
Cdd:cd08410   81 NVSLVFTV 88
C2B_Synaptotagmin-7 cd08405
C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
 46-136 5.91e-08

C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176050 [Multi-domain]  Cd Length: 136  Bit Score: 52.04  E-value: 5.91e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSigLQHCRSR-------TIYKNLNPTWNEVFEFmvyEVPGQDL----- 113
Cdd:cd08405   15 NRITVNIIKARNLKAMD----INGTSDPYVKVW--LMYKDKRvekkktvIKKRTLNPVFNESFIF---NIPLERLrettl 85

                         90       100
                 ....*....|....*....|....
gi 755530196 114 EVDLYDEDT-DKDDFLGslQICLG 136
Cdd:cd08405   86 IITVMDKDRlSRNDLIG--KIYLG 107
C2A_Rabphilin_Doc2 cd04035
C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
 43-143 8.24e-08

C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176000 [Multi-domain]  Cd Length: 123  Bit Score: 51.13  E-value: 8.24e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  43 LPCGVIRvhlleAKKLAQKDNflglGGKSDPYAKVSI-----GLQHCRSRTIYKNLNPTWNEVFEFmvYEVPGQD----- 112
Cdd:cd04035   17 LHCTIIR-----AKGLKAMDA----NGLSDPYVKLNLlpgasKATKLRTKTVHKTRNPEFNETLTY--YGITEEDiqrkt 85

                         90       100       110
                 ....*....|....*....|....*....|.
gi 755530196 113 LEVDLYDEDTDKDDFLGSLQICLGDVMKNRV 143
Cdd:cd04035   86 LRLLVLDEDRFGNDFLGETRIPLKKLKPNQT 116
C2_RGS-like cd08685
C2 domain of the Regulator Of G-Protein Signaling (RGS) family; This CD contains members of ...
 510-586 9.11e-08

C2 domain of the Regulator Of G-Protein Signaling (RGS) family; This CD contains members of the regulator of G-protein signaling (RGS) family. RGS is a GTPase activating protein which inhibits G-protein mediated signal transduction. The protein is largely cytosolic, but G-protein activation leads to translocation of this protein to the plasma membrane. A nuclear form of this protein has also been described, but its sequence has not been identified. There are multiple alternatively spliced transcript variants in this family with some members having additional domains (ex. PDZ and RGS) downstream of the C2 domain. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176067 [Multi-domain]  Cd Length: 119  Bit Score: 50.92  E-value: 9.11e-08
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 755530196 510 HCLRVLVNGCRNLtPCTSSGA-DPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQKRSLdVAVKNS 586
Cdd:cd08685   12 RKLTLHVLEAKGL-RSTNSGTcNSYVKISLSPDKEVRFRQKTSTVPDSANPLFHETFSFDVNERDYQKRLL-VTVWNK 87
C2A_Rasal1_RasA4 cd04054
C2 domain first repeat present in RasA1 and RasA4; Rasal1 and RasA4 are both members of GAP1 ...
 50-163 1.29e-07

C2 domain first repeat present in RasA1 and RasA4; Rasal1 and RasA4 are both members of GAP1 (GTPase activating protein 1). Rasal1 responds to repetitive Ca2+ signals by associating with the plasma membrane and deactivating Ras. RasA4 suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. Both of these proteins contains two C2 domains, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176018 [Multi-domain]  Cd Length: 121  Bit Score: 50.59  E-value: 1.29e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQH-CRSRTIYKNLNPTWNEvfEFMVYEVPG-QDLEVDLYDEDT-DKDD 126
Cdd:cd04054    4 IRIVEGKNLPAKD----ITGSSDPYCIVKVDNEViIRTATVWKTLNPFWGE--EYTVHLPPGfHTVSFYVLDEDTlSRDD 77

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 755530196 127 FLGSLQICLGDV-MKNRVVDEWFAL-----NDTTSGRLHLRLE 163
Cdd:cd04054   78 VIGKVSLTREVIsAHPRGIDGWMNLtevdpDEEVQGEIHLELS 120
C2B_Ferlin cd04011
C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 48-152 1.52e-07

C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 175978 [Multi-domain]  Cd Length: 111  Bit Score: 49.88  E-value: 1.52e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAqkdnflglGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPG--QD--LEVDLYDEDT- 122
Cdd:cd04011    6 VRVRVIEARQLV--------GGNIDPVVKVEVGGQKKYTSVKKGTNCPFYNEYFFFNFHESPDelFDkiIKISVYDSRSl 77

                         90       100       110
                 ....*....|....*....|....*....|...
gi 755530196 123 DKDDFLGSLQICLGDVMKN---RVVDEWFALND 152
Cdd:cd04011   78 RSDTLIGSFKLDVGTVYDQpdhAFLRKWLLLTD 110
C2B_RasA3 cd04010
C2 domain second repeat present in RAS p21 protein activator 3 (RasA3); RasA3 are members of ...
 512-627 1.55e-07

C2 domain second repeat present in RAS p21 protein activator 3 (RasA3); RasA3 are members of GTPase activating protein 1 (GAP1), a Ras-specific GAP, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. RasA3 contains an N-terminal C2 domain, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175977 [Multi-domain]  Cd Length: 148  Bit Score: 50.86  E-value: 1.55e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLtPCTSSGADPYVRIYLLPERRWASRKKTSVKQKTLEPLFDETFEFFV-------------PMGEVQKRS 578
Cdd:cd04010    2 LSVRVIECSDL-ALKNGTCDPYASVTLIYSNKKQDTKRTKVKKKTNNPQFDEAFYFDVtidsspekkqfemPEEDAEKLE 80

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|
gi 755530196 579 LDVAVKNSRPLGShrRKELGKVLIDLSKQDLIKG-FSQWYELtadgQPRS 627
Cdd:cd04010   81 LRVDLWHASMGGG--DVFLGEVRIPLRGLDLQAGsHQAWYFL----QPRE 124
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
 208-291 1.71e-07

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 49.79  E-value: 1.71e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   208 YRAKKLSRFVKNKASrDPssYVKLTVG---KKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDELECA---LG 281
Cdd:smart00239   7 ISARNLPPKDKGGKS-DP--YVKVSLDgdpKEKKKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRddfIG 83

                           90
                   ....*....|
gi 755530196   282 VLEFPLCRIL 291
Cdd:smart00239  84 QVTIPLSDLL 93
C2C_MCTP_PRT_plant cd04019
C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 49-162 1.81e-07

C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175986 [Multi-domain]  Cd Length: 150  Bit Score: 50.75  E-value: 1.81e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  49 RVHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHCRSRT-IYKNLNPTWNEVFEFMVYEvPGQD---LEVDlYDEDTDK 124
Cdd:cd04019    3 RVTVIEAQDLVPSDK----NRVPEVFVKAQLGNQVLRTRPsQTRNGNPSWNEELMFVAAE-PFEDhliLSVE-DRVGPNK 76

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 755530196 125 DDFLGSLQICLGDVMKnRVVDE-----WFALNDTT-----------SGRLHLRL 162
Cdd:cd04019   77 DEPLGRAVIPLNDIER-RVDDRpvpsrWFSLERPGgameqkkkrkfASRIHLRL 129
C2_PKC_epsilon cd04014
C2 domain in Protein Kinase C (PKC) epsilon; A single C2 domain is found in PKC epsilon. The ...
 46-164 1.95e-07

C2 domain in Protein Kinase C (PKC) epsilon; A single C2 domain is found in PKC epsilon. The PKC family of serine/threonine kinases regulates apoptosis, proliferation, migration, motility, chemo-resistance, and differentiation. There are 3 groups: group 1 (alpha, betaI, beta II, gamma) which require phospholipids and calcium, group 2 (delta, epsilon, theta, eta) which do not require calcium for activation, and group 3 (xi, iota/lambda) which are atypical and can be activated in the absence of diacylglycerol and calcium. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-II topology.


Pssm-ID: 175981 [Multi-domain]  Cd Length: 132  Bit Score: 50.35  E-value: 1.95e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEA---KKLAQKDNFLGLGGKS---DPYakVSIGLQHC---RSRTIYKNLNPTWNEVFEFMVYEvpGQDLEVD 116
Cdd:cd04014    4 GTLKIKICEAvdlKPTDWSTRHAVPKKGSqllDPY--VSIDVDDThigKTSTKPKTNSPVWNEEFTTEVHN--GRNLELT 79

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|.
gi 755530196 117 LY-DEDTDKDDFLGSLQICLGDVMKN--RVVDEWFALNDTtsGRLHLRLEW 164
Cdd:cd04014   80 VFhDAAIGPDDFVANCTISFEDLIQRgsGSFDLWVDLEPQ--GKLHVKIEL 128
C2A_Synaptotagmin-7 cd08386
C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
 44-103 2.54e-07

C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176032 [Multi-domain]  Cd Length: 125  Bit Score: 49.64  E-value: 2.54e-07
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 755530196  44 PCGVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSI---GLQHCRSRTIYKNLNPTWNEVFEF 103
Cdd:cd08386   14 QESTLTLKILKAVELPAKD----FSGTSDPFVKIYLlpdKKHKLETKVKRKNLNPHWNETFLF 72
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
12-140 2.94e-07

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 53.99  E-value: 2.94e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   12 LEDLIAAHLVLPNRVTVPVKKG-LDVTNLRVPL--------------PCGVIRVHLLEAKKLAQKDnflgLGGKSDPYAK 76
Cdd:COG5038   662 LPDLIDRTLDTFLVFPLRNPKGrIFITNYWKPIynaggsssktvydtPIGAIRVSVRKANDLRNEI----PGGKSDPYAT 737

                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 755530196   77 VSIGlQHCRSRTIYK--NLNPTWNEV-FEFMVYEVPGQDLEVDLYDEDTDkDDFLGSLQICLGDVMK 140
Cdd:COG5038   738 VLVN-NLVKYRTIYGssTLNPIWNEIlYVPVTSKNQRLTLECMDYEESGD-DRNLGEVNINVSNVSK 802
C2B_SLP_1-2-3-4 cd04020
C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically ...
 46-168 3.20e-07

C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike the case in Slp3 and Slp4/granuphilin in which their C2A domains are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp3 and Slp4/granuphilin promote dense-core vesicle exocytosis. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175987 [Multi-domain]  Cd Length: 162  Bit Score: 50.40  E-value: 3.20e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNflglGGKSDPYAKVSI------GLQHcRSRTIYKNLNPTWNEVfefMVYE-VPGQDL----- 113
Cdd:cd04020   27 GELHVWVKEAKNLPALKS----GGTSDSFVKCYLlpdkskKSKQ-KTPVVKKSVNPVWNHT---FVYDgVSPEDLsqacl 98

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 755530196 114 EVDLYDEDTDK-DDFLGSLQICLGDVMKNRVVDEWFalnDTTSGRLHLrleWLSLL 168
Cdd:cd04020   99 ELTVWDHDKLSsNDFLGGVRLGLGTGKSYGQAVDWM---DSTGEEILL---WQKML 148
C2_Perforin cd04032
C2 domain of Perforin; Perforin contains a single copy of a C2 domain in its C-terminus and ...
 70-152 4.05e-07

C2 domain of Perforin; Perforin contains a single copy of a C2 domain in its C-terminus and plays a role in lymphocyte-mediated cytotoxicity. Mutations in perforin leads to familial hemophagocytic lymphohistiocytosis type 2. The function of perforin is calcium dependent and the C2 domain is thought to confer this binding to target cell membranes. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175998 [Multi-domain]  Cd Length: 127  Bit Score: 49.18  E-value: 4.05e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  70 KSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEF-MVYEVPGQDLEVDLYDED-TDKDDFLGSLQIclgdVMKNRVVDEW 147
Cdd:cd04032   47 STDGYVKVFFGGQEKRTEVIWNNNNPRWNATFDFgSVELSPGGKLRFEVWDRDnGWDDDLLGTCSV----VPEAGVHEDS 122


                 ....*
gi 755530196 148 FALND 152
Cdd:cd04032  123 CQLNH 127
C2_PLC_like cd00275
C2 domain present in Phosphoinositide-specific phospholipases C (PLC); PLCs are involved in ...
 68-135 4.67e-07

C2 domain present in Phosphoinositide-specific phospholipases C (PLC); PLCs are involved in the hydrolysis of phosphatidylinositol-4,5-bisphosphate (PIP2) to d-myo-inositol-1,4,5-trisphosphate (1,4,5-IP3) and sn-1,2-diacylglycerol (DAG). 1,4,5-IP3 and DAG are second messengers in eukaryotic signal transduction cascades. PLC is composed of a N-terminal PH domain followed by a series of EF hands, a catalytic TIM barrel and a C-terminal C2 domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-II topology.


Pssm-ID: 175974 [Multi-domain]  Cd Length: 128  Bit Score: 49.08  E-value: 4.67e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  68 GGKSDPYAKVSI-GL-----QHCRSRTIYKN-LNPTWNEVFEFMVYeVPgqDL-----EVdlYDEDTDKDDFLGslQICL 135
Cdd:cd00275   22 GSIVDPYVEVEIhGLpaddsAKFKTKVVKNNgFNPVWNETFEFDVT-VP--ELaflrfVV--YDEDSGDDDFLG--QACL 94
C2_Munc13_fungal cd04043
C2 domain in Munc13 (mammalian uncoordinated) proteins; fungal group; C2-like domains are ...
 66-163 9.72e-07

C2 domain in Munc13 (mammalian uncoordinated) proteins; fungal group; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176008 [Multi-domain]  Cd Length: 126  Bit Score: 48.03  E-value: 9.72e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  66 GLGGKSDPYAKVS---IGLQHCRSRTIYKNLNPTWNEVFEFMVYEVPGQDLEVDLYDED-TDKDDFLGSLQICL------ 135
Cdd:cd04043   17 SSNGLSDPYVTLVdtnGKRRIAKTRTIYDTLNPRWDEEFELEVPAGEPLWISATVWDRSfVGKHDLCGRASLKLdpkrfg 96

                         90       100
                 ....*....|....*....|....*...
gi 755530196 136 GDVMKNrvvDEWFALNdtTSGRLHLRLE 163
Cdd:cd04043   97 DDGLPR---EIWLDLD--TQGRLLLRVS 119
C2A_Copine cd04048
C2 domain first repeat in Copine; There are 2 copies of the C2 domain present in copine, a ...
 53-142 1.71e-06

C2 domain first repeat in Copine; There are 2 copies of the C2 domain present in copine, a protein involved in membrane trafficking, protein-protein interactions, and perhaps even cell division and growth. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176013 [Multi-domain]  Cd Length: 120  Bit Score: 47.18  E-value: 1.71e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  53 LEAKKLAQKDNFlglgGKSDPYAKVSIG-------LQHCRSRTIYKNLNPTWNE--VFEFMVYEVpgQDLEVDLYDED-- 121
Cdd:cd04048    7 ISCRNLLDKDVL----SKSDPFVVVYVKtggsgqwVEIGRTEVIKNNLNPDFVTtfTVDYYFEEV--QKLRFEVYDVDsk 80

                         90       100
                 ....*....|....*....|....
gi 755530196 122 ---TDKDDFLGSLQICLGDVMKNR 142
Cdd:cd04048   81 skdLSDHDFLGEAECTLGEIVSSP 104
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
 511-623 2.66e-06

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 46.40  E-value: 2.66e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 511 CLRVLVNGCRNL-TPCTSSGADPYVRIYLLPERRwasrkKTSVKQKTLEPLFDETFEFFVPMGEVQkrSLDVAVKNsrpl 589
Cdd:cd04050    1 LLFVYLDSAKNLpLAKSTKEPSPYVELTVGKTTQ-----KSKVKERTNNPVWEEGFTFLVRNPENQ--ELEIEVKD---- 69

                         90       100       110
                 ....*....|....*....|....*....|....*...
gi 755530196 590 gSHRRKELGKVLIDLS----KQDLIkgFSQWYELTADG 623
Cdd:cd04050   70 -DKTGKSLGSLTLPLSellkEPDLT--LDQPFPLDNSG 104
C2_Smurf-like cd08382
C2 domain present in Smad ubiquitination-related factor (Smurf)-like proteins; A single C2 ...
 48-191 2.69e-06

C2 domain present in Smad ubiquitination-related factor (Smurf)-like proteins; A single C2 domain is found in Smurf proteins, C2-WW-HECT-domain E3s, which play an important role in the downregulation of the TGF-beta signaling pathway. Smurf proteins also regulate cell shape, motility, and polarity by degrading small guanosine triphosphatases (GTPases). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have type-II topology.


Pssm-ID: 176028 [Multi-domain]  Cd Length: 123  Bit Score: 46.92  E-value: 2.69e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNFLGLggksDPYAKVSIGLQHCRSRTIYKN-LNPTWNEVFEFMVyeVPGQDLEVDLYDEDT--DK 124
Cdd:cd08382    2 VRLTVLCADGLAKRDLFRLP----DPFAVITVDGGQTHSTDVAKKtLDPKWNEHFDLTV--GPSSIITIQVFDQKKfkKK 75

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 755530196 125 DD-FLGslqicLGDVMKNRVVDewfaLNDTTSGRLHLRlewlslltdqeALTENDSGLSTAILVVFLE 191
Cdd:cd08382   76 DQgFLG-----CVRIRANAVLP----LKDTGYQRLDLR-----------KLKKSDNLSVRGKIVVSLS 123
SMP_ESyt2 cd21680
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended ...
 1-30 2.72e-06

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended synaptotagmin-2 (E-Syt2) and similar proteins; Extended synaptotagmin-2 (E-Syt2), also called Chr2Syt, tethers the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane. It binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport. E-Syt2 plays a role in fibroblast growth factor (FGF) signaling via its role in the rapid internalization of FGFreceptor 1 (FGFR1) that has been activated by FGF1 binding; this occurs most likely via the AP-2 complex. E-Syt2 consists of an N-terminal endoplasmic reticulum (ER)-membrane anchor, a central SMP-domain, and three C-terminal cytoplasmic C2-domains. The ER-membrane anchor and C2 domains are required for tethering, and the SMP domain may be implicated in lipid transport. This model corresponds to SMP domain.


Pssm-ID: 439236  Cd Length: 179  Bit Score: 47.96  E-value: 2.72e-06
                         10        20        30
                 ....*....|....*....|....*....|
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPV 30
Cdd:cd21680  150 IPGLNGLSDTIILDIISNYLVLPNRITVPL 179
C2B_RasA1_RasA4 cd04025
C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase ...
 511-627 2.88e-06

C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase activating protein 1s ), Ras-specific GAP members, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. Both proteins contain two C2 domains, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175991 [Multi-domain]  Cd Length: 123  Bit Score: 46.71  E-value: 2.88e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 511 CLRVLVNGCRNLTPCTSSGA-DPYVRIyllperRWASR-KKTSVKQKTLEPLFDETFEFFVPMGEVQKRSL-----DVAV 583
Cdd:cd04025    1 RLRCHVLEARDLAPKDRNGTsDPFVRV------FYNGQtLETSVVKKSCYPRWNEVFEFELMEGADSPLSVevwdwDLVS 74

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 755530196 584 KNSRplgshrrkeLGKVLIDLSKQDLIKGFSQWYELTADGQPRS 627
Cdd:cd04025   75 KNDF---------LGKVVFSIQTLQQAKQEEGWFRLLPDPRAEE 109
C2B_Synaptotagmin-1 cd08402
C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking ...
 46-136 3.45e-06

C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a member of the class 1 synaptotagmins, is located in the brain and endocranium and localized to the synaptic vesicles and secretory granules. It functions as a Ca2+ sensor for fast exocytosis. It, like synaptotagmin-2, has an N-glycosylated N-terminus. Synaptotagmin 4, a member of class 4 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmin-11, has an Asp to Ser substitution in its C2A domain. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176047 [Multi-domain]  Cd Length: 136  Bit Score: 47.01  E-value: 3.45e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSigLQHCRSR------TI-YKNLNPTWNEVFEFmvyEVPGQ-----DL 113
Cdd:cd08402   15 GKLTVVILEAKNLKKMD----VGGLSDPYVKIH--LMQNGKRlkkkktTIkKRTLNPYYNESFSF---EVPFEqiqkvHL 85

                         90       100
                 ....*....|....*....|....
gi 755530196 114 EVDLYDED-TDKDDFLGslQICLG 136
Cdd:cd08402   86 IVTVLDYDrIGKNDPIG--KVVLG 107
C2B_Munc13-like cd04009
C2 domain second repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
 47-139 3.68e-06

C2 domain second repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175976 [Multi-domain]  Cd Length: 133  Bit Score: 46.85  E-value: 3.68e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDNflglGGKSDPYAKVSIGLQHC-------RSRTIYKNLNPTWNEVFEFMV----YEVPGQDLEV 115
Cdd:cd04009   17 SLRVEILNARNLLPLDS----NGSSDPFVKVELLPRHLfpdvptpKTQVKKKTLFPLFDESFEFNVppeqCSVEGALLLF 92

                         90       100
                 ....*....|....*....|....*
gi 755530196 116 DLYDEDT-DKDDFLGSLQICLGDVM 139
Cdd:cd04009   93 TVKDYDLlGSNDFEGEAFLPLNDIP 117
C2 pfam00168
C2 domain;
208-292 4.30e-06

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 45.77  E-value: 4.30e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  208 YRAKKLsrfVKNKASRDPSSYVKLTV--GKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDEL---ECALGV 282
Cdd:pfam00168   8 IEAKNL---PPKDGNGTSDPYVKVYLldGKQKKKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRfgrDDFIGE 84

                          90
                  ....*....|
gi 755530196  283 LEFPLCRILP 292
Cdd:pfam00168  85 VRIPLSELDS 94
C2B_Synaptotagmin cd00276
C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking ...
 50-147 4.33e-06

C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. There are several classes of Synaptotagmins. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175975 [Multi-domain]  Cd Length: 134  Bit Score: 46.42  E-value: 4.33e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  50 VHLLEAKKLAQKDNflglGGKSDPYAKVSIgLQHCR------SRTIYKNLNPTWNEVFEFMV--YEVPGQDLEVDLYDED 121
Cdd:cd00276   18 VVVLKARNLPPSDG----KGLSDPYVKVSL-LQGGKklkkkkTSVKKGTLNPVFNEAFSFDVpaEQLEEVSLVITVVDKD 92

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 122 TD-KDDFLGslQICLG------------DVMKN--RVVDEW 147
Cdd:cd00276   93 SVgRNEVIG--QVVLGpdsggeelehwnEMLASprKPIARW 131
C2B_Ferlin cd04011
C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 531-591 6.83e-06

C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 175978 [Multi-domain]  Cd Length: 111  Bit Score: 45.26  E-value: 6.83e-06
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 755530196 531 DPYVRIYLLPERrwasrKKTSVKQKTLEPLFDET--FEFFVPMGEVQKRSLDVAVKNSRPLGS 591
Cdd:cd04011   22 DPVVKVEVGGQK-----KYTSVKKGTNCPFYNEYffFNFHESPDELFDKIIKISVYDSRSLRS 79
SMP_ESyt1 cd21679
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended ...
 1-30 1.56e-05

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain found in extended synaptotagmin-1 (E-Syt1) and similar proteins; Extended synaptotagmin-1 (E-Syt1), also called membrane-bound C2 domain-containing protein (MBC2), binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport. It also binds calcium via the C2 domains and translocates to sites of contact between the endoplasmic reticulum and the cell membrane in response to increased cytosolic calcium levels. E-Syt1 tethers the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane. E-Syt1 consists of an N-terminal endoplasmic reticulum (ER)-membrane anchor, a central SMP-domain, and five C-terminal cytoplasmic C2-domains. The ER-membrane anchor and C2 domains are required for tethering, and the SMP domain may be implicated in lipid transport. This model corresponds to the SMP domain.


Pssm-ID: 439235  Cd Length: 176  Bit Score: 45.94  E-value: 1.56e-05
                         10        20        30
                 ....*....|....*....|....*....|
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPV 30
Cdd:cd21679  147 IPGLSSMSDTMIMDTIASFLVLPNRLTVPL 176
C2D_Tricalbin-like cd04040
C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 512-570 1.61e-05

C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fifth C2 repeat, C2E, and has a type-II topology.


Pssm-ID: 176005 [Multi-domain]  Cd Length: 115  Bit Score: 44.48  E-value: 1.61e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLPERRWasrkKTSVKQKTLEPLFDETFEFFVP 570
Cdd:cd04040    1 LTVDVISAENLPSADRNGkSDPFVKFYLNGEKVF----KTKTIKKTLNPVWNESFEVPVP 56
C2C_KIAA1228 cd04030
C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins ...
 47-150 1.69e-05

C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins are uncharacterized human proteins. They were compiled by the Kazusa mammalian cDNA project which identified more than 2000 human genes. They are identified by 4 digit codes that precede the KIAA designation. Many KIAA genes are still functionally uncharacterized including KIAA1228. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175996 [Multi-domain]  Cd Length: 127  Bit Score: 44.57  E-value: 1.69e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHllEAKKLAQKDNflglGGKSDPYAKVSIGLQH---CRSRT--IYKNLNPTWNEVFEFMVY--EVPGQDLEVDLYD 119
Cdd:cd04030   19 IVTVH--KCRNLPPCDS----SDIPDPYVRLYLLPDKsksTRRKTsvKKDNLNPVFDETFEFPVSleELKRRTLDVAVKN 92

                         90       100       110
                 ....*....|....*....|....*....|....*
gi 755530196 120 E----DTDKdDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:cd04030   93 SksflSREK-KLLGQVLIDLSDLDLSKGFTQWYDL 126
C2B_PI3K_class_II cd08381
C2 domain second repeat present in class II phosphatidylinositol 3-kinases (PI3Ks); There are ...
 68-151 1.80e-05

C2 domain second repeat present in class II phosphatidylinositol 3-kinases (PI3Ks); There are 3 classes of PI3Ks based on structure, regulation, and specificity. All classes contain a N-terminal C2 domain, a PIK domain, and a kinase catalytic domain. Unlike class I and class III, class II PI3Ks have additionally a PX domain and a C-terminal C2 domain containing a nuclear localization signal both of which bind phospholipids though in a slightly different fashion. PI3Ks (AKA phosphatidylinositol (PtdIns) 3-kinases) regulate cell processes such as cell growth, differentiation, proliferation, and motility. PI3Ks work on phosphorylation of phosphatidylinositol, phosphatidylinositide (4)P (PtdIns (4)P),2 or PtdIns(4,5)P2. Specifically they phosphorylate the D3 hydroxyl group of phosphoinositol lipids on the inositol ring. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176027 [Multi-domain]  Cd Length: 122  Bit Score: 44.59  E-value: 1.80e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  68 GGKSDPYAKVSI--GLQHCRSR---TIYKNLNPTWNEVF---EFMVYEVPGQDLEVDLYDEDT-DKDDFLGSLQICLGDV 138
Cdd:cd08381   30 GSDPDPYVKTYLlpDPQKTTKRktkVVRKTRNPTFNEMLvydGLPVEDLQQRVLQVSVWSHDSlVENEFLGGVCIPLKKL 109

                         90
                 ....*....|...
gi 755530196 139 MKNRVVDEWFALN 151
Cdd:cd08381  110 DLSQETEKWYPLG 122
C2A_RasGAP cd08383
C2 domain (first repeat) of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras ...
 511-620 3.08e-05

C2 domain (first repeat) of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. The proteins here all contain either a single C2 domain or two tandem C2 domains, a Ras-GAP domain, and a pleckstrin homology (PH)-like domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176029 [Multi-domain]  Cd Length: 117  Bit Score: 43.79  E-value: 3.08e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 511 CLRVLVNGCRNLTPCTSSgaDPYVRIYLLPERRWasrkKTSVKQKtLEPLFDETFEFFVPMGEVQKRSLDVAVKNSRPLG 590
Cdd:cd08383    1 SLRLRILEAKNLPSKGTR--DPYCTVSLDQVEVA----RTKTVEK-LNPFWGEEFVFDDPPPDVTFFTLSFYNKDKRSKD 73

                         90       100       110
                 ....*....|....*....|....*....|
gi 755530196 591 ShrrkELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd08383   74 R----DIVIGKVALSKLDLGQGKDEWFPLT 99
C2A_RasA2_RasA3 cd08401
C2 domain first repeat present in RasA2 and RasA3; RasA2 and RasA3 are GAP1s (GTPase ...
 47-162 3.24e-05

C2 domain first repeat present in RasA2 and RasA3; RasA2 and RasA3 are GAP1s (GTPase activating protein 1s ), Ras-specific GAP members, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. RasA2 and RasA3 are both inositol 1,3,4,5-tetrakisphosphate-binding proteins and contain an N-terminal C2 domain, a Ras-GAP domain, a pleckstrin-homology (PH) domain which localizes it to the plasma membrane, and Bruton's Tyrosine Kinase (BTK) a zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176046 [Multi-domain]  Cd Length: 121  Bit Score: 43.58  E-value: 3.24e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  47 VIRVHLLEAKKLAQKDnflGLGGKSDPYAKVSIGLQH-CRSRTIYKNLNPTWNEVFEFmvyEVPG--QDLEVDLYDEDT- 122
Cdd:cd08401    1 SLKIKIGEAKNLPPRS---GPNKMRDCYCTVNLDQEEvFRTKTVEKSLCPFFGEDFYF---EIPRtfRHLSFYIYDRDVl 74

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 123 DKDDFLGSLQICLGDVMKNRVVDEWFAL-----NDTTSGRLHLRL 162
Cdd:cd08401   75 RRDSVIGKVAIKKEDLHKYYGKDTWFPLqpvdaDSEVQGKVHLEL 119
C2_KIAA0528-like cd08688
C2 domain found in the Human KIAA0528 cDNA clone; The members of this CD are named after the ...
 48-153 4.02e-05

C2 domain found in the Human KIAA0528 cDNA clone; The members of this CD are named after the Human KIAA0528 cDNA clone. All members here contain a single C2 repeat. No other information on this protein is currently known. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176070 [Multi-domain]  Cd Length: 110  Bit Score: 43.06  E-value: 4.02e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNFLGLggkSDPYAKVSIGLQHCRSRTIYKNLNPTWN-EVFEFMVYEVPGQD--LEVDLYDEDT-D 123
Cdd:cd08688    1 LKVRVVAARDLPVMDRSSDL---TDAFVEVKFGSTTYKTDVVKKSLNPVWNsEWFRFEVDDEELQDepLQIRVMDHDTyS 77

                         90       100       110
                 ....*....|....*....|....*....|...
gi 755530196 124 KDDFLGSLQICLGDVMK---NRVVDEWFALNDT 153
Cdd:cd08688   78 ANDAIGKVYIDLNPLLLkdsVSQISGWFPIYDT 110
C2A_Synaptotagmin-14_16 cd08389
C2A domain first repeat present in Synaptotagmins 14 and 16; Synaptotagmin 14 and 16 are ...
 497-616 4.22e-05

C2A domain first repeat present in Synaptotagmins 14 and 16; Synaptotagmin 14 and 16 are membrane-trafficking proteins in specific tissues outside the brain. Both of these contain C-terminal tandem C2 repeats, but only Synaptotagmin 14 has an N-terminal transmembrane domain and a putative fatty-acylation site. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium and this is indeed the case here. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176035 [Multi-domain]  Cd Length: 124  Bit Score: 43.38  E-value: 4.22e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 497 GEIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGADPY-VRIYLLPERRwaSRKKTSVKQKTlEPLFDETFEFF-VPMGEV 574
Cdd:cd08389    3 GDLDVAFEYDPSARKLTVTVIRAQDIPTKDRGGASSWqVHLVLLPSKK--QRAKTKVQRGP-NPVFNETFTFSrVEPEEL 79

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 755530196 575 QKRSLDVavknsRPLGSHR-RKE--LGKVLIDLSKQDLIKGFSQW 616
Cdd:cd08389   80 NNMALRF-----RLYGVERmRKErlIGEKVVPLSQLNLEGETTVW 119
C2_PSD cd04039
C2 domain present in Phosphatidylserine decarboxylase (PSD); PSD is involved in the ...
 46-107 5.28e-05

C2 domain present in Phosphatidylserine decarboxylase (PSD); PSD is involved in the biosynthesis of aminophospholipid by converting phosphatidylserine (PtdSer) to phosphatidylethanolamine (PtdEtn). There is a single C2 domain present and it is thought to confer PtdSer binding motif that is common to PKC and synaptotagmin. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176004 [Multi-domain]  Cd Length: 108  Bit Score: 42.63  E-value: 5.28e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 755530196  46 GVIRVHLLEAKKLAQKDNFLGLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYE 107
Cdd:cd04039    1 GVVFMEIKSITDLPPLKNMTRTGFDMDPFVIISFGRRVFRTSWRRHTLNPVFNERLAFEVYP 62
SMP_LBD pfam17047
Synaptotagmin-like mitochondrial-lipid-binding domain; SMP is a proposed lipid-binding module, ...
 1-30 7.98e-05

Synaptotagmin-like mitochondrial-lipid-binding domain; SMP is a proposed lipid-binding module, ie a synaptotagmin-like mitochondrial-lipid-binding domain found in eukaryotes. The SMP domain has a beta-barrel structure like protein modules in the tubular-lipid-binding (TULIP) superfamily. It dimerizes to form an approximately 90-Angstrom-long cylinder traversed by a channel lined entirely with hydrophobic residues. The following two C2 domains then form arched structures flexibly linked to the SMP domain. The SMP domain is a lipid-binding domain that links the ER with other lipid bilayer-membranes within the cell.


Pssm-ID: 465339  Cd Length: 180  Bit Score: 43.87  E-value: 7.98e-05
                          10        20        30
                  ....*....|....*....|....*....|
gi 755530196    1 MPGINELSDSLLEDLIAAHLVLPNRVTVPV 30
Cdd:pfam17047 150 VPGLNGLSDTIILDIISNYLVLPNRITVPL 179
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
69-173 9.91e-05

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 45.52  E-value: 9.91e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196   69 GKSDPYakVSIGLQH---CRSRTIYKNLNPTWNEVFEFmvyEVPGQD---LEVDLYD-EDTDKDDFLGSLQICL------ 135
Cdd:COG5038  1059 GYSDPF--VKLFLNEksvYKTKVVKKTLNPVWNEEFTI---EVLNRVkdvLTINVNDwDSGEKNDLLGTAEIDLsklepg 1133

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 755530196  136 GDVMKNRVVD-EWFALNDTT-SGRLHLRLEWLSLLTDQEA 173
Cdd:COG5038  1134 GTTNSNIPLDgKTFIVLDGTlHPGFNFRSKYALNVSRKEG 1173
C2_Rab11-FIP_classI cd08682
C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit ...
 48-157 1.15e-04

C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit various effector proteins to organelles and vesicles. Rab11-family interacting proteins (FIPs) are involved in mediating the role of Rab11. FIPs can be divided into three classes: class I FIPs (Rip11a, Rip11b, RCP, and FIP2) which contain a C2 domain after N-terminus of the protein, class II FIPs (FIP3 and FIP4) which contain two EF-hands and a proline rich region, and class III FIPs (FIP1) which exhibits no homology to known protein domains. All FIP proteins contain a highly conserved, 20-amino acid motif at the C-terminus of the protein, known as Rab11/25 binding domain (RBD). Class I FIPs are thought to bind to endocytic membranes via their C2 domain, which interacts directly with phospholipids. Class II FIPs do not have any membrane binding domains leaving much to speculate about the mechanism involving FIP3 and FIP4 interactions with endocytic membranes. The members in this CD are class I FIPs. The exact function of the Rab11 and FIP interaction is unknown, but there is speculation that it involves the role of forming a targeting complex that recruits a group of proteins involved in membrane transport to organelles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176064 [Multi-domain]  Cd Length: 126  Bit Score: 42.05  E-value: 1.15e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKdnflGLGGKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFmvyEVPGQDLEVDLYDEDT----- 122
Cdd:cd08682    1 VQVTVLQARGLLCK----GKSGTNDAYVIIQLGKEKYSTSVKEKTTSPVWKEECSF---ELPGLLSGNGNRATLQltvmh 73

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 755530196 123 ----DKDDFLGSLQICLGDV--MKNRVVDEWFALNDTTSGR 157
Cdd:cd08682   74 rnllGLDKFLGQVSIPLNDLdeDKGRRRTRWFKLESKPGKD 114
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
 224-312 1.15e-04

C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is present in cPLA2 which releases arachidonic acid from membranes initiating the biosynthesis of potent inflammatory mediators such as prostaglandins, leukotrienes, and platelet-activating factor. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members of this cd have a type-II topology.


Pssm-ID: 176001 [Multi-domain]  Cd Length: 119  Bit Score: 41.86  E-value: 1.15e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 224 DPssYVKL---TVGKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDDELEC--ALGVLEFPLCRILPcaDLTL 298
Cdd:cd04036   22 DC--YVELwlpTASDEKKRTKTIKNSINPVWNETFEFRIQSQVKNVLELTVMDEDYVMddHLGTVLFDVSKLKL--GEKV 97

                         90
                 ....*....|....
gi 755530196 299 EQCFQLDHSGLDSL 312
Cdd:cd04036   98 RVTFSLNPQGKEEL 111
SMP_ESyt cd21670
synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain of the extended ...
 1-30 1.46e-04

synaptotagmin-like mitochondrial-lipid-binding protein (SMP) domain of the extended synaptotagmin (E-Syt) family; The extended synaptotagmin (E-Syt) family includes a group of Ca2+-regulated intrinsic membrane proteins, such as E-Syt1, E-Syt2 and E-Syt3. They are composed of an N-terminal endoplasmic reticulum (ER)-membrane anchor, a central SMP-domain, and five (E-Syt1) or three C-terminal cytoplasmic C2-domains (E-Syt2 and E-Syt3). The ER-membrane anchor and C2 domains are required for tethering, while the SMP domain is a lipid-binding domain that links the ER with other lipid bilayer-membranes within the cell. This model corresponds to the SMP domain, which has a beta-barrel structure like protein modules in the tubular-lipid-binding (TULIP) superfamily. It dimerizes to form an approximately 90-Angstrom-long cylinder traversed by a channel lined entirely with hydrophobic residues. The following two C2 domains then form arched structures flexibly linked to the SMP domain.


Pssm-ID: 439226  Cd Length: 177  Bit Score: 42.93  E-value: 1.46e-04
                         10        20        30
                 ....*....|....*....|....*....|
gi 755530196   1 MPGINELSDSLLEDLIAAHLVLPNRVTVPV 30
Cdd:cd21670  148 IPGLSNLLRKIIVDQIASFLVLPNRITIPL 177
C2_SRC2_like cd04051
C2 domain present in Soybean genes Regulated by Cold 2 (SRC2)-like proteins; SRC2 production ...
 67-141 1.46e-04

C2 domain present in Soybean genes Regulated by Cold 2 (SRC2)-like proteins; SRC2 production is a response to pathogen infiltration. The initial response of increased Ca2+ concentrations are coupled to downstream signal transduction pathways via calcium binding proteins. SRC2 contains a single C2 domain which localizes to the plasma membrane and is involved in Ca2+ dependent protein binding. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176016 [Multi-domain]  Cd Length: 125  Bit Score: 41.83  E-value: 1.46e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  67 LGGKSDPYAKVSI-GLQHCRSRTIYK-NLNPTWNEVFEFMVYEVPGQD----LEVDLYDEDTDK-DDFLGSLQICLGDVM 139
Cdd:cd04051   17 LFGKMKVYAVVWIdPSHKQSTPVDRDgGTNPTWNETLRFPLDERLLQQgrlaLTIEVYCERPSLgDKLIGEVRVPLKDLL 96


                 ..
gi 755530196 140 KN 141
Cdd:cd04051   97 DG 98
C2_Rab11-FIP_classI cd08682
C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit ...
 513-619 1.61e-04

C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit various effector proteins to organelles and vesicles. Rab11-family interacting proteins (FIPs) are involved in mediating the role of Rab11. FIPs can be divided into three classes: class I FIPs (Rip11a, Rip11b, RCP, and FIP2) which contain a C2 domain after N-terminus of the protein, class II FIPs (FIP3 and FIP4) which contain two EF-hands and a proline rich region, and class III FIPs (FIP1) which exhibits no homology to known protein domains. All FIP proteins contain a highly conserved, 20-amino acid motif at the C-terminus of the protein, known as Rab11/25 binding domain (RBD). Class I FIPs are thought to bind to endocytic membranes via their C2 domain, which interacts directly with phospholipids. Class II FIPs do not have any membrane binding domains leaving much to speculate about the mechanism involving FIP3 and FIP4 interactions with endocytic membranes. The members in this CD are class I FIPs. The exact function of the Rab11 and FIP interaction is unknown, but there is speculation that it involves the role of forming a targeting complex that recruits a group of proteins involved in membrane transport to organelles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176064 [Multi-domain]  Cd Length: 126  Bit Score: 41.67  E-value: 1.61e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 513 RVLVNGCRNLTPCTSSGA-DPYVRIYLLPERRwasrkKTSVKQKTLEPLFDETFEFFVPMGEVQKRSLDVAVKNSRplgs 591
Cdd:cd08682    2 QVTVLQARGLLCKGKSGTnDAYVIIQLGKEKY-----STSVKEKTTSPVWKEECSFELPGLLSGNGNRATLQLTVM---- 72

                         90       100       110
                 ....*....|....*....|....*....|....*
gi 755530196 592 HRR-----KELGKVLIDLSKQDLIKGF--SQWYEL 619
Cdd:cd08682   73 HRNllgldKFLGQVSIPLNDLDEDKGRrrTRWFKL 107
C2B_MCTP_PRT cd08376
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 514-620 2.48e-04

C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176022 [Multi-domain]  Cd Length: 116  Bit Score: 41.09  E-value: 2.48e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 514 VLVNGcRNLTPCTSSG-ADPYVRIYLLPERRwasrkKTSVKQKTLEPLFDETFEFFvpMGEVQKRSLDVAVKNSRPlgsh 592
Cdd:cd08376    5 VLVEG-KNLPPMDDNGlSDPYVKFRLGNEKY-----KSKVCSKTLNPQWLEQFDLH--LFDDQSQILEIEVWDKDT---- 72

                         90       100       110
                 ....*....|....*....|....*....|
gi 755530196 593 RRKE--LGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd08376   73 GKKDefIGRCEIDLSALPREQTHSLELELE 102
C2A_MCTP_PRT cd04042
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 218-306 2.70e-04

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176007 [Multi-domain]  Cd Length: 121  Bit Score: 41.11  E-value: 2.70e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 218 KNKASRDPSS----YVKLTVGKKT-FTSKTCPHSKDPVWSQVFSFFVHSVaAEQLCLKVLDDELECA---LGVLEFPLCr 289
Cdd:cd04042   10 RNLAARDRGGtsdpYVKFKYGGKTvYKSKTIYKNLNPVWDEKFTLPIEDV-TQPLYIKVFDYDRGLTddfMGSAFVDLS- 87

                         90
                 ....*....|....*..
gi 755530196 290 ilpcadlTLEQCFQLDH 306
Cdd:cd04042   88 -------TLELNKPTEV 97
C2A_Ferlin cd08373
C2 domain first repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 519-620 3.26e-04

C2 domain first repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176019 [Multi-domain]  Cd Length: 127  Bit Score: 41.09  E-value: 3.26e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 519 CRNLTPCTSSGaDPYVRIyllpERRWASrKKTSVKQKTLEPLFDETFEFFVPMGEVQKRSLDVAVKNSRPLGSHRRkeLG 598
Cdd:cd08373    5 LKNLPGLKGKG-DRIAKV----TFRGVK-KKTRVLENELNPVWNETFEWPLAGSPDPDESLEIVVKDYEKVGRNRL--IG 76

                         90       100
                 ....*....|....*....|..
gi 755530196 599 KVLIDLskQDLIKGFSQWYELT 620
Cdd:cd08373   77 SATVSL--QDLVSEGLLEVTEP 96
C2B_Synaptotagmin-14_16 cd08408
C2 domain second repeat present in Synaptotagmins 14 and 16; Synaptotagmin 14 and 16 are ...
 498-597 4.62e-04

C2 domain second repeat present in Synaptotagmins 14 and 16; Synaptotagmin 14 and 16 are membrane-trafficking proteins in specific tissues outside the brain. Both of these contain C-terminal tandem C2 repeats, but only Synaptotagmin 14 has an N-terminal transmembrane domain and a putative fatty-acylation site. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium and this is indeed the case here. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176053 [Multi-domain]  Cd Length: 138  Bit Score: 40.81  E-value: 4.62e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 498 EIQLTVRYVCLRHCLRVLVNGCRNLTPCTSSGA-DPYVRIYLL-PERRWASRKKTSVKQKTLEPLFDETFEFFVPMGEVQ 575
Cdd:cd08408    3 ELLLGLEYNALTGRLSVEVIKGSNFKNLAMNKApDTYVKLTLLnSDGQEISKSKTSIRRGQPDPEFKETFVFQVALFQLS 82

                         90       100
                 ....*....|....*....|..
gi 755530196 576 KRSLDVAVKNSRplgSHRRKEL 597
Cdd:cd08408   83 EVTLMFSVYNKR---KMKRKEM 101
C2A_SLP cd08521
C2 domain first repeat present in Synaptotagmin-like proteins; All Slp members basically share ...
 46-150 5.54e-04

C2 domain first repeat present in Synaptotagmin-like proteins; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike the case in Slp3 and Slp4/granuphilin in which their C2A domains are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp3 and Slp4/granuphilin promote dense-core vesicle exocytosis. Slp5 mRNA has been shown to be restricted to human placenta and liver suggesting a role in Rab27A-dependent membrane trafficking in specific tissues. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176056 [Multi-domain]  Cd Length: 123  Bit Score: 40.32  E-value: 5.54e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  46 GVIRVHLLEAKKLAQKDNflgLGGKSDPYAKVSIGLQHCRS---RTIYKN--LNPTWNEVFEfmvYEVPGQDLE-----V 115
Cdd:cd08521   14 GSLEVHIKECRNLAYADE---KKKRSNPYVKVYLLPDKSKQskrKTSVKKntTNPVFNETLK---YHISKSQLEtrtlqL 87

                         90       100       110
                 ....*....|....*....|....*....|....*.
gi 755530196 116 DLYDEDTDK-DDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:cd08521   88 SVWHHDRFGrNTFLGEVEIPLDSWDLDSQQSEWYPL 123
C2A_Munc13-like cd08676
C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
 511-619 8.32e-04

C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176058 [Multi-domain]  Cd Length: 153  Bit Score: 40.43  E-value: 8.32e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 511 CLRVLVNGCRNLTPCTSSG-ADPYVRIYLLP----------ERRWASRKK--------------TSVKQKTLEPLFDETF 565
Cdd:cd08676   29 VLKVTVIEAKGLLAKDVNGfSDPYCMLGIVPasrernseksKKRKSHRKKavlkdtvpaksikvTEVKPQTLNPVWNETF 108

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 755530196 566 EFFVpmGEVQKRSLDVavknsrPLGSHRRKELGKVLIDLsKQDLIKGFSQWYEL 619
Cdd:cd08676  109 RFEV--EDVSNDQLHL------DIWDHDDDFLGCVNIPL-KDLPSCGLDSWFKL 153
C2B_Synaptotagmin-3-5-6-9-10 cd08403
C2 domain second repeat present in Synaptotagmins 3, 5, 6, 9, and 10; Synaptotagmin is a ...
 43-114 9.26e-04

C2 domain second repeat present in Synaptotagmins 3, 5, 6, 9, and 10; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 3, a member of class 3 synaptotagmins, is located in the brain and localized to the active zone and plasma membrane. It functions as a Ca2+ sensor for fast exocytosis. It, along with synaptotagmins 5,6, and 10, has disulfide bonds at its N-terminus. Synaptotagmin 9, a class 5 synaptotagmins, is located in the brain and localized to the synaptic vesicles. It is thought to be a Ca2+-sensor for dense-core vesicle exocytosis. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176048 [Multi-domain]  Cd Length: 134  Bit Score: 39.80  E-value: 9.26e-04
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 755530196  43 LP-CGVIRVHLLEAKKLAQKDnflgLGGKSDPYAKVSIGLQHCRSR----TIYKN-LNPTWNEVfefMVYEVPGQDLE 114
Cdd:cd08403   10 LPtAGRLTLTIIKARNLKAMD----ITGFSDPYVKVSLMCEGRRLKkkktSVKKNtLNPTYNEA---LVFDVPPENVD 80
C2_fungal_Inn1p-like cd08681
C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 ...
 531-624 1.04e-03

C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 associates with the contractile actomyosin ring at the end of mitosis and is needed for cytokinesis. The C2 domain of Inn1, located at the N-terminus, is required for ingression of the plasma membrane. The C-terminus is relatively unstructured and contains eight PXXP motifs that are thought to mediate interaction of Inn1 with other proteins with SH3 domains in the cytokinesis proteins Hof1 (an F-BAR protein) and Cyk3 (whose overexpression can restore primary septum formation in Inn1Delta cells) as well as recruiting Inn1 to the bud-neck by binding to Cyk3. Inn1 and Cyk3 appear to cooperate in activating chitin synthase Chs2 for primary septum formation, which allows coordination of actomyosin ring contraction with ingression of the cleavage furrow. It is thought that the C2 domain of Inn1 helps to preserve the link between the actomyosin ring and the plasma membrane, contributing both to membrane ingression, as well as to stability of the contracting ring. Additionally, Inn1 might induce curvature of the plasma membrane adjacent to the contracting ring, thereby promoting ingression of the membrane. It has been shown that the C2 domain of human synaptotagmin induces curvature in target membranes and thereby contributes to fusion of these membranes with synaptic vesicles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176063 [Multi-domain]  Cd Length: 118  Bit Score: 39.15  E-value: 1.04e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 531 DPYVRIYLLPERrwasrKKTSVKQKT-LEPLFDETFEFfvPMGEVQKRSLDVAVKNSRPlgsHRRKELGKVLIDLSKQdL 609
Cdd:cd08681   23 DPYCVLRIGGVT-----KKTKTDFRGgQHPEWDEELRF--EITEDKKPILKVAVFDDDK---RKPDLIGDTEVDLSPA-L 91

                         90
                 ....*....|....*.
gi 755530196 610 IKG-FSQWYELTADGQ 624
Cdd:cd08681   92 KEGeFDDWYELTLKGR 107
C2B_Synaptotagmin-4 cd08404
C2 domain second repeat present in Synaptotagmin 4; Synaptotagmin is a membrane-trafficking ...
 48-133 1.04e-03

C2 domain second repeat present in Synaptotagmin 4; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 4, a member of class 4 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmin-11, has an Asp to Ser substitution in its C2A domain. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176049 [Multi-domain]  Cd Length: 136  Bit Score: 39.72  E-value: 1.04e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNflglGGKSDPYAKVSI---GLQHCRSRTIYK--NLNPTWNEVFefmVYEVP---GQDLEVDLYD 119
Cdd:cd08404   17 LTVVVLKARHLPKMDV----SGLADPYVKVNLyygKKRISKKKTHVKkcTLNPVFNESF---VFDIPseeLEDISVEFLV 89

                         90
                 ....*....|....*..
gi 755530196 120 EDTD---KDDFLGSLQI 133
Cdd:cd08404   90 LDSDrvtKNEVIGRLVL 106
C2A_SLP-1_2 cd08393
C2 domain first repeat present in Synaptotagmin-like proteins 1 and 2; All Slp members ...
 48-150 1.13e-03

C2 domain first repeat present in Synaptotagmin-like proteins 1 and 2; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike Slp3 and Slp4/granuphilin which are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176039 [Multi-domain]  Cd Length: 125  Bit Score: 39.34  E-value: 1.13e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDNflgLGGKSDPYAKVSI----GLQHCRSRTIYK-NLNPTWNEVFEFMV--YEVPGQDLEVDLYDE 120
Cdd:cd08393   17 LHVHVIQCQDLAAADP---KKQRSDPYVKTYLlpdkSNRGKRKTSVKKkTLNPVFNETLRYKVerEELPTRVLNLSVWHR 93

                         90       100       110
                 ....*....|....*....|....*....|...
gi 755530196 121 DT-DKDDFLGSLQICLG--DVMKNRVvdEWFAL 150
Cdd:cd08393   94 DSlGRNSFLGEVEVDLGswDWSNTQP--TWYPL 124
C2C_Ferlin cd04018
C2 domain third repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
 72-130 1.29e-03

C2 domain third repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 175985 [Multi-domain]  Cd Length: 151  Bit Score: 39.54  E-value: 1.29e-03
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 755530196  72 DPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEVP-GQDLEVDLYDEDT-DKDDFLGS 130
Cdd:cd04018   36 DPYVEVSFAGQKVKTSVKKNSYNPEWNEQIVFPEMFPPlCERIKIQIRDWDRvGNDDVIGT 96
C2A_MCTP_PRT_plant cd04022
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 512-605 1.31e-03

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 175989 [Multi-domain]  Cd Length: 127  Bit Score: 39.24  E-value: 1.31e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTSSG-ADPYVRIYLLperrwASRKKTSVKQKTLEPLFDETFEFFVPMGEV-QKRSLDVAVKNSRPL 589
Cdd:cd04022    2 LVVEVVDAQDLMPKDGQGsSSAYVELDFD-----GQKKRTRTKPKDLNPVWNEKLVFNVSDPSRlSNLVLEVYVYNDRRS 76

                         90
                 ....*....|....*.
gi 755530196 590 GsHRRKELGKVLIDLS 605
Cdd:cd04022   77 G-RRRSFLGRVRISGT 91
C2_Ras_p21A1 cd08400
C2 domain present in RAS p21 protein activator 1 (RasA1); RasA1 is a GAP1 (GTPase activating ...
 48-150 1.34e-03

C2 domain present in RAS p21 protein activator 1 (RasA1); RasA1 is a GAP1 (GTPase activating protein 1), a Ras-specific GAP member, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. RasA1 contains a C2 domain, a Ras-GAP domain, a pleckstrin homology (PH)-like domain, a SH3 domain, and 2 SH2 domains. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176045 [Multi-domain]  Cd Length: 126  Bit Score: 39.27  E-value: 1.34e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  48 IRVHLLEAKKLAQKDnflglggKSDPYAKVSIG-LQHCRSRtIYKNLNPTWNEvfEFMVYEVPGQ--DLEVDLYDEDT-D 123
Cdd:cd08400    6 LQLNVLEAHKLPVKH-------VPHPYCVISLNeVKVARTK-VREGPNPVWSE--EFVFDDLPPDvnSFTISLSNKAKrS 75

                         90       100
                 ....*....|....*....|....*..
gi 755530196 124 KDDFLGSLQICLGDVMKNRVVDEWFAL 150
Cdd:cd08400   76 KDSEIAEVTVQLSKLQNGQETDEWYPL 102
C2B_Tricalbin-like cd04052
C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 220-274 1.99e-03

C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176017 [Multi-domain]  Cd Length: 111  Bit Score: 38.35  E-value: 1.99e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 755530196 220 KASRDPSSYVKLTV-GKKTFTSKTCPHSKDPVWSQVFSFFVHSVAAEQLCLKVLDD 274
Cdd:cd04052    8 SKTGLLSPYAELYLnGKLVYTTRVKKKTNNPSWNASTEFLVTDRRKSRVTVVVKDD 63
C2_Tollip cd04016
C2 domain present in Toll-interacting protein (Tollip); Tollip is a part of the Interleukin-1 ...
 72-151 2.37e-03

C2 domain present in Toll-interacting protein (Tollip); Tollip is a part of the Interleukin-1 receptor (IL-1R) signaling pathway. Tollip is proposed to link serine/threonine kinase IRAK to IL-1Rs as well as inhibiting phosphorylation of IRAK. There is a single C2 domain present in Tollip. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175983 [Multi-domain]  Cd Length: 121  Bit Score: 38.47  E-value: 2.37e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  72 DPYAKVSIGLQHCRSRTIYKNL-NPTWNEVFEFMVYevPGQD-LEVDLYDEDTDK-DDFLGSLQICLGD-VMKNRVVDEW 147
Cdd:cd04016   23 DPYCRIRVGHAVYETPTAYNGAkNPRWNKTIQCTLP--EGVDsIYIEIFDERAFTmDERIAWTHITIPEsVFNGETLDDW 100


                 ....
gi 755530196 148 FALN 151
Cdd:cd04016  101 YSLS 104
C2D_MCTP_PRT_plant cd08379
C2 domain fourth repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
 69-143 5.46e-03

C2 domain fourth repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fourth C2 repeat, C2D, and has a type-II topology.


Pssm-ID: 176025 [Multi-domain]  Cd Length: 126  Bit Score: 37.39  E-value: 5.46e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196  69 GKSDPYAKVSIGLQHCRSRTIYKNLNPTWNEVFEFMVYEvPGQDLEVDLYD-------EDTDKDDFLGSLQICLGDVMKN 141
Cdd:cd08379   22 GSTDAYCVAKYGPKWVRTRTVEDSSNPRWNEQYTWPVYD-PCTVLTVGVFDnsqshwkEAVQPDVLIGKVRIRLSTLEDD 100


                 ..
gi 755530196 142 RV 143
Cdd:cd08379  101 RV 102
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
 515-620 5.67e-03

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 37.27  E-value: 5.67e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 515 LVNGCRNLTPCTSSGADPYVRIyllperRWASRK-KTSVKQKTLEPLFDETFEFFVPmgEVQKRSLDVAVKNSRPlgsHR 593
Cdd:cd08391   13 LVAKDKFVGGLVKGKSDPYVIV------RVGAQTfKSKVIKENLNPKWNEVYEAVVD--EVPGQELEIELFDEDP---DK 81

                         90       100
                 ....*....|....*....|....*..
gi 755530196 594 RKELGKVLIDLSKQDLIKGFSQWYELT 620
Cdd:cd08391   82 DDFLGRLSIDLGSVEKKGFIDEWLPLE 108
C2C_Tricalbin-like cd04045
C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
 511-611 6.16e-03

C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 176010 [Multi-domain]  Cd Length: 120  Bit Score: 37.18  E-value: 6.16e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 511 CLRVLVNGCRNLTPCTSSG-ADPYVRIyLLPERrwaSRKKTSVKQKTLEPLFDETfeFFVP-MGEVQKRSLDV----AVK 584
Cdd:cd04045    2 VLRLHIRKANDLKNLEGVGkIDPYVRV-LVNGI---VKGRTVTISNTLNPVWDEV--LYVPvTSPNQKITLEVmdyeKVG 75

                         90       100
                 ....*....|....*....|....*..
gi 755530196 585 NSRPLGShrrkelgkvlIDLSKQDLIK 611
Cdd:cd04045   76 KDRSLGS----------VEINVSDLIK 92
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
 512-606 6.58e-03

C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is present in cPLA2 which releases arachidonic acid from membranes initiating the biosynthesis of potent inflammatory mediators such as prostaglandins, leukotrienes, and platelet-activating factor. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members of this cd have a type-II topology.


Pssm-ID: 176001 [Multi-domain]  Cd Length: 119  Bit Score: 36.86  E-value: 6.58e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 755530196 512 LRVLVNGCRNLTPCTS-SGADPYVRIYLlperRWAS--RKKTSVKQKTLEPLFDETFEFFVPMGevQKRSLDVAVKNSRP 588
Cdd:cd04036    2 LTVRVLRATNITKGDLlSTPDCYVELWL----PTASdeKKRTKTIKNSINPVWNETFEFRIQSQ--VKNVLELTVMDEDY 75

                         90
                 ....*....|....*...
gi 755530196 589 LGShrrKELGKVLIDLSK 606
Cdd:cd04036   76 VMD---DHLGTVLFDVSK 90
 
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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