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Conserved domains on  [gi|1386876255|ref|NP_001350003|]
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cytosolic phospholipase A2 zeta isoform 3 [Mus musculus]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Patatin_and_cPLA2 super family cl11396
Patatins and Phospholipases; Patatin-like phospholipase. This family consists of various ...
299-847 0e+00

Patatins and Phospholipases; Patatin-like phospholipase. This family consists of various patatin glycoproteins from plants. The patatin protein accounts for up to 40% of the total soluble protein in potato tubers. Patatin is a storage protein, but it also has the enzymatic activity of a lipid acyl hydrolase, catalyzing the cleavage of fatty acids from membrane lipids. Members of this family have also been found in vertebrates. This family also includes the catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms.


The actual alignment was detected with superfamily member cd07201:

Pssm-ID: 416256 [Multi-domain]  Cd Length: 541  Bit Score: 845.85  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 299 MKADMSSsGDLDLRLGFDLCDGEQEFLDKRKQVASKALQRVMGLSEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQE 378
Cdd:cd07201     1 LKAEESS-EDLDVRLGFDLCAEEQEFLQKRKKVVAAALKKALQLEEDLQEDEVPVVAVMTTGGGTRALTSMYGSLLGLQK 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 379 LGLLDAVTYLSGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCSSKIGMLSPKQFEYYSREKRAWESRGHSMSFTDL 458
Cdd:cd07201    80 LGLLDCVSYITGLSGSTWTMATLYEDPNWSQKDLEGPIEEARKHVTKSKLGCFSPERLKYYRQELSEREQEGHKVSFIDL 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 459 WGLIIEYFLNQEENPAKLSDQQETVSQGQNPYPIYASINVHKNISGDDFAEWCEFTPYEVGFPKYGAYVPTELFGSEFFM 538
Cdd:cd07201   160 WGLIIESMLHDKKNDHKLSDQREAVSQGQNPLPIYLSLNVKDNLSTQDFREWVEFTPYEVGFLKYGAFIPAEDFGSEFFM 239
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 539 GRLLHFWPEPRICYLQGMWGSAFAASLYEIFLKLGGLSLSFLDWHRGSVSVTDDWPKLRKQDPTRLpTRLFTPMSSFSQA 618
Cdd:cd07201   240 GRLMKKLPESRICFLQGMWSSIFSLNLLDAWYLATGSEDFWHRWTRDKVNDIEDEPPLPPRPPERL-TTLLTPGGPLSQA 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 619 VLDIFTSRITCAQTFNFTRGLCMYKDYTARKDFVVSEDAwhshnygYPDACPNQLTPMKDFLSLVDGGFAINSPFPLVLQ 698
Cdd:cd07201   319 FRDFLTSRPTVSQYFNFLRGLQLHNDYLENKGFSTWKDT-------HLDAFPNQLTPSEDHLCLVDTAFFINTSYPPLLR 391
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 699 PQRAVDLIVSFDYSLEGPFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAEDPCSPIVLHFPLVNRTFRTHL 778
Cdd:cd07201   392 PERKVDVILSLNYSLGSQFEPLKQASEYCSEQGIPFPKIELSPEDQENLKECYVFEDADNPEAPIVLHFPLVNDTFRKYK 471
                         490       500       510       520       530       540
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1386876255 779 APGVERQTAEEKAFGDFiINGPDTAYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIRHALQLALDRRRQ 847
Cdd:cd07201   472 APGVERSPEEMAQGGVD-VSSSDSPYATRNLTYTEEDFDKLVKLTSYNVLNNKDLILQALRLAVERKKQ 539
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
45-161 2.75e-50

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: 172.45  E-value: 2.75e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:cd04036     2 LTVRVLRATNITKGDLLSTPDCYVELWLPTASDEKKRTKTIKNSINPVWNETFEFRIQSQVKNVLELTVMDEDYVMDDHL 81
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 1386876255 125 FSILFDTSTLQLGQPCTKNFT-RQQDPKELEVEFTLEK 161
Cdd:cd04036    82 GTVLFDVSKLKLGEKVRVTFSlNPQGKEELEVEFLLEL 119
cPLA2_C2 pfam18695
Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a ...
180-300 8.64e-33

Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a family of calcium-sensitive enzymes that function to generate lipid second messengers through hydrolysis of membrane-associated glycerophospholipids. In humans, the cPLA2 family contains six isoforms. Structural information of full length cPLA2alpha apo form, shows that it is composed of two domains; an N-terminal Ca2 + binding C2 domain and a C-terminal alpha/beta hydrolase core. This entry describes the N-terminal Ca2+ binding C2 domain which is composed of an eight-stranded antiparallel beta-sandwich consisting of two four-stranded beta-sheets. C2 domains are present in many lipid-binding proteins including Copines, CAPRI and Rabphilin-3A all of which are involved in membrane trafficking.


:

Pssm-ID: 465834  Cd Length: 111  Bit Score: 122.36  E-value: 8.64e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 180 CLRIQGTVTGDKTaslgELGSRQIQLAVPGAYEKPQPLQPTSEPGLPVNFTFHVNPVLSPKLHIKLQeQLQVFHSGPSDE 259
Cdd:pfam18695   1 CLEVQVDSRGSKK----EQGKKDLQLTVPGSYEGTQTISLGPEPGCPDPFCFHYPKYWEPELHVELP-KSSVLQSGWNSD 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|.
gi 1386876255 260 LEAQTSKMdkaSILLSSLPLNEELTklVDLEEGQQVSLRMK 300
Cdd:pfam18695  76 LEKETSKL---TVPLKSLPLGQEVT--VPLPEGQELHLRLK 111
 
Name Accession Description Interval E-value
cPLA2_Grp-IVB-IVD-IVE-IVF cd07201
Group IVB, IVD, IVE, and IVF cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group ...
299-847 0e+00

Group IVB, IVD, IVE, and IVF cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group IVB, IVD, IVE, and IVF cPLA2 consists of two domains: the regulatory C2 domain and alpha/beta hydrolase PLA2 domain. Group IVB, IVD, IVE, and IVF cPLA2 are also referred to as cPLA2-beta, -delta, -epsilon, and -zeta respectively. cPLA2-beta is approximately 30% identical to cPLA2-alpha and it shows low enzymatic activity compared to cPLA2alpha. cPLA2-beta hydrolyzes palmitic acid from 1-[14C]palmitoyl-2-arachidonoyl-PC and arachidonic acid from 1-palmitoyl-2[14C]arachidonoyl-PC, but not from 1-O-alkyl-2[3H]arachidonoyl-PC. cPLA2-delta, -epsilon, and -zeta are approximately 45-50% identical to cPLA2-beta and 31-37% identical to cPLA2-alpha. It's possible that cPLA2-beta, -delta, -epsilon, and -zeta may have arisen by gene duplication from an ancestral gene. The catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms. Movement of the cPLA2 lid possibly exposes a greater hydrophobic surface and the active site. cPLA2 belongs to the alpha-beta hydrolase family which is identified by a characteristic nucleophile elbow with a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). Calcium is required for cPLA2 to bind with membranes or phospholipids. The calcium-dependent phospholipid binding domain resides in the N-terminal region of cPLA2; it is homologous to the C2 domain superfamily which is not included in this hierarchy. It includes PLA2G4B, PLA2G4D, PLA2G4E, and PLA2G4F from humans.


Pssm-ID: 132840 [Multi-domain]  Cd Length: 541  Bit Score: 845.85  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 299 MKADMSSsGDLDLRLGFDLCDGEQEFLDKRKQVASKALQRVMGLSEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQE 378
Cdd:cd07201     1 LKAEESS-EDLDVRLGFDLCAEEQEFLQKRKKVVAAALKKALQLEEDLQEDEVPVVAVMTTGGGTRALTSMYGSLLGLQK 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 379 LGLLDAVTYLSGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCSSKIGMLSPKQFEYYSREKRAWESRGHSMSFTDL 458
Cdd:cd07201    80 LGLLDCVSYITGLSGSTWTMATLYEDPNWSQKDLEGPIEEARKHVTKSKLGCFSPERLKYYRQELSEREQEGHKVSFIDL 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 459 WGLIIEYFLNQEENPAKLSDQQETVSQGQNPYPIYASINVHKNISGDDFAEWCEFTPYEVGFPKYGAYVPTELFGSEFFM 538
Cdd:cd07201   160 WGLIIESMLHDKKNDHKLSDQREAVSQGQNPLPIYLSLNVKDNLSTQDFREWVEFTPYEVGFLKYGAFIPAEDFGSEFFM 239
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 539 GRLLHFWPEPRICYLQGMWGSAFAASLYEIFLKLGGLSLSFLDWHRGSVSVTDDWPKLRKQDPTRLpTRLFTPMSSFSQA 618
Cdd:cd07201   240 GRLMKKLPESRICFLQGMWSSIFSLNLLDAWYLATGSEDFWHRWTRDKVNDIEDEPPLPPRPPERL-TTLLTPGGPLSQA 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 619 VLDIFTSRITCAQTFNFTRGLCMYKDYTARKDFVVSEDAwhshnygYPDACPNQLTPMKDFLSLVDGGFAINSPFPLVLQ 698
Cdd:cd07201   319 FRDFLTSRPTVSQYFNFLRGLQLHNDYLENKGFSTWKDT-------HLDAFPNQLTPSEDHLCLVDTAFFINTSYPPLLR 391
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 699 PQRAVDLIVSFDYSLEGPFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAEDPCSPIVLHFPLVNRTFRTHL 778
Cdd:cd07201   392 PERKVDVILSLNYSLGSQFEPLKQASEYCSEQGIPFPKIELSPEDQENLKECYVFEDADNPEAPIVLHFPLVNDTFRKYK 471
                         490       500       510       520       530       540
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1386876255 779 APGVERQTAEEKAFGDFiINGPDTAYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIRHALQLALDRRRQ 847
Cdd:cd07201   472 APGVERSPEEMAQGGVD-VSSSDSPYATRNLTYTEEDFDKLVKLTSYNVLNNKDLILQALRLAVERKKQ 539
PLAc smart00022
Cytoplasmic phospholipase A2, catalytic subunit; Cytosolic phospholipases A2 hydrolyse ...
306-795 2.82e-53

Cytoplasmic phospholipase A2, catalytic subunit; Cytosolic phospholipases A2 hydrolyse arachidonyl phospholipids. Family includes phospholipases B isoforms.


Pssm-ID: 214474  Cd Length: 549  Bit Score: 194.57  E-value: 2.82e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  306 SGDLDLRLGFDLCDGEQEFLDKRKQVASKALQRVMGL-------SEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQE 378
Cdd:smart00022  23 SDIPLVRFSMGLSDNETEFLQKRKDYTNEAMKSFLGRansnfldSSLLNSSDVPKIAIAGSGGGFRAMVGGAGVLKAMDN 102
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  379 L-------GLLDAVTYLSGVSGSSWCISTLYRDPsWSqkalqgPIKYASERvcsSKIGMLS-------------PKQFEY 438
Cdd:smart00022 103 RtdghglgGLLQSATYLAGLSGGTWLVGTLASNN-FT------PVKGPEEI---NSEWMFSvsinnpginllltAQFYKS 172
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  439 YSREKRAWESRGHSMSFTDLWGLIIEY-FLNQEENPA-KLSD--QQETVSQGQNPYPIYASINVHKNISGDDFAEWC-EF 513
Cdd:smart00022 173 IVDAVWKKKDAGFNISLTDIWGRALSYnLFDSLGGPNyTLSSlrDQEKFQNAEMPLPIFVADGRKPGESVINFNDTVfEF 252
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  514 TPYEVG--FPKYGAYVPTELFGSEFFMGRLLHFWPEPRICYLQGMWGSAFaASLYEIFLklgGLSLSFLDWHRGSVSVTD 591
Cdd:smart00022 253 SPFEFGswDPKLNAFMPPEYLGSKFFNGTPVKKGKCIPNFDNAGFIMGTS-SSLFNRFL---LVLSNSTMEESLIKIIIK 328
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  592 DWPKLRKQDPTRLPTRLFTPMSSFSqAVLDIFTSRITCAQTFNFTRGLCMYKDYTARK--------DFVVSEDAWHSHNY 663
Cdd:smart00022 329 HILKDLSSDSDDIAIYPPNPFKDDA-YVQRMLTNSLGDSDLLNLVDGGEDGENIPLSPllqpersvDVIFAVDASADTDE 407
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  664 GYPDACPnqLTPMKDfLSLVDGGFAINSPFPLVLQPQRAVDLIVSFDYSLEG----------PFEVLQVTEKYCRDRGIP 733
Cdd:smart00022 408 FWPNGSS--LVKTYE-RHVVDQGLTFNLPFPYVPDTQTFVNLGLSTKPTFFGcdssnltyipPLVVYLPNEKWAYNSNIS 484
                          490       500       510       520       530       540
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1386876255  734 FPRIevDPKDSED---PRECYLFA----EAEDPCspiVLHFPLVNRTFRTHLAPGVERQTAEEKAFGDF 795
Cdd:smart00022 485 TFKI--SYSVFEReglIKNGYEFAtvnnSTDDDC---FIHCVACAIIFRKQEAPNVTLPSECSKCFYNY 548
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
45-161 2.75e-50

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: 172.45  E-value: 2.75e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:cd04036     2 LTVRVLRATNITKGDLLSTPDCYVELWLPTASDEKKRTKTIKNSINPVWNETFEFRIQSQVKNVLELTVMDEDYVMDDHL 81
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 1386876255 125 FSILFDTSTLQLGQPCTKNFT-RQQDPKELEVEFTLEK 161
Cdd:cd04036    82 GTVLFDVSKLKLGEKVRVTFSlNPQGKEELEVEFLLEL 119
PLA2_B pfam01735
Lysophospholipase catalytic domain; This family consists of Lysophospholipase / phospholipase ...
354-799 1.04e-35

Lysophospholipase catalytic domain; This family consists of Lysophospholipase / phospholipase B EC:3.1.1.5 and cytosolic phospholipase A2 EC:3.1.4 which also has a C2 domain pfam00168. Phospholipase B enzymes catalyze the release of fatty acids from lysophsopholipids and are capable in vitro of hydrolysing all phospholipids extractable form yeast cells. Cytosolic phospholipase A2 associates with natural membranes in response to physiological increases in Ca2+ and selectively hydrolyses arachidonyl phospholipids, the aligned region corresponds the the carboxy-terminal Ca2+-independent catalytic domain of the protein as discussed in.


Pssm-ID: 366778  Cd Length: 490  Bit Score: 142.12  E-value: 1.04e-35
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 354 VAVLGSGGGTRAMTSLYGSLAGL--------QELGLLDAVTYLSGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCS 425
Cdd:pfam01735   1 IGIAGSGGGYRAMLGGAGVLAALdnrtdnetGLGGLLQSATYLAGLSGGSWLVGSLAVNNFTSVQDFPDKPEDISIWDLN 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 426 SKI----GMLSPKQFEYYSREKRAWESR---GHSMSFTDLWGLIIEY-FLNQEEN-PA-KLSD--QQETVSQGQNPYPIY 493
Cdd:pfam01735  81 HSIfnpgGLNIPQNIKRYDDIVDAVWKKknaGFNVSLTDIWGRALSYtLIPSLRGgPNyTWSSlrDAEWFQNAEMPFPII 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 494 ASINVHKNISGDDF-AEWCEFTPYEVGF--PKYGAYVPTELFGSEFFMGRLLHFWPEPRICYLQGMWGSAFA-------- 562
Cdd:pfam01735 161 VADGRKPGTTVINLnATVFEFSPYEFGSwdPTLNSFTPTEYLGTKFFNGTPVKKGKCVPGFDNAGFVMGTSStlfnqfll 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 563 ----ASLYEIFLK------LGGLSLSFLDwhrgsVSVtddWPKLRKQDPTRLPTRLFTPMSSFSqavlDIFTSRiTCAQT 632
Cdd:pfam01735 241 vinsTSSLPSFLNiiikhiLKDLSEDSDD-----ISQ---YPPNPFQDANDINQNATNSIVDSD----TLFLVD-GGEDG 307
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 633 FNFTRGLCMYKDYTArkDFVVSEDAWHSHNYGYPDAC--PN----QLTPM----KDFLSLVDGGFAINspFPLVLQP-QR 701
Cdd:pfam01735 308 QNIPLWPLLQPERDV--DVIFAVDNSADTDNDWPDGVslVDtyerQFEPLqvkgKKFPYVPDGNTFVN--LGLNTRPtFF 383
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 702 AVDLIVSFDYSLEG-----PFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAED--PCSPIVLHFPLVNRTF 774
Cdd:pfam01735 384 GCDARNLTDLSARVsdstpPLVVYLPNEPWSYMSNLSTFKISYNDSERQGLIENGFEAATQDneTDDPTFAHCVACAIIR 463
                         490       500
                  ....*....|....*....|....*
gi 1386876255 775 RTHLAPGVERQTAEEKAFGDFIING 799
Cdd:pfam01735 464 RKLERLNITLPSECEQCFENYCWNG 488
cPLA2_C2 pfam18695
Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a ...
180-300 8.64e-33

Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a family of calcium-sensitive enzymes that function to generate lipid second messengers through hydrolysis of membrane-associated glycerophospholipids. In humans, the cPLA2 family contains six isoforms. Structural information of full length cPLA2alpha apo form, shows that it is composed of two domains; an N-terminal Ca2 + binding C2 domain and a C-terminal alpha/beta hydrolase core. This entry describes the N-terminal Ca2+ binding C2 domain which is composed of an eight-stranded antiparallel beta-sandwich consisting of two four-stranded beta-sheets. C2 domains are present in many lipid-binding proteins including Copines, CAPRI and Rabphilin-3A all of which are involved in membrane trafficking.


Pssm-ID: 465834  Cd Length: 111  Bit Score: 122.36  E-value: 8.64e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 180 CLRIQGTVTGDKTaslgELGSRQIQLAVPGAYEKPQPLQPTSEPGLPVNFTFHVNPVLSPKLHIKLQeQLQVFHSGPSDE 259
Cdd:pfam18695   1 CLEVQVDSRGSKK----EQGKKDLQLTVPGSYEGTQTISLGPEPGCPDPFCFHYPKYWEPELHVELP-KSSVLQSGWNSD 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|.
gi 1386876255 260 LEAQTSKMdkaSILLSSLPLNEELTklVDLEEGQQVSLRMK 300
Cdd:pfam18695  76 LEKETSKL---TVPLKSLPLGQEVT--VPLPEGQELHLRLK 111
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
45-139 2.63e-15

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: 72.13  E-value: 2.63e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255   45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:smart00239   2 LTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEKKKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRDDF 81
                           90
                   ....*....|....*.
gi 1386876255  125 F-SILFDTSTLQLGQP 139
Cdd:smart00239  82 IgQVTIPLSDLLLGGR 97
C2 pfam00168
C2 domain;
45-145 2.89e-14

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 69.27  E-value: 2.89e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLpTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:pfam00168   3 LTVTVIEAKNLPPKDGNGTSDPYVKVYL-LDGKQKKKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRFGRDDF 81
                          90       100
                  ....*....|....*....|..
gi 1386876255 125 F-SILFDTSTLQLGQPCTKNFT 145
Cdd:pfam00168  82 IgEVRIPLSELDSGEGLDGWYP 103
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
44-143 4.45e-04

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


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 43.98  E-value: 4.45e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255   44 DLQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPsqTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVL-DSD 122
Cdd:COG5038   1041 YLTIMLRSGENLPSSDENGYSDPFVKLFLNEKSVYK--TKVVKKTLNPVWNEEFTIEVLNRVKDVLTINVNDWDSGeKND 1118
                           90       100
                   ....*....|....*....|.
gi 1386876255  123 NVFSILFDTSTLQLGQPCTKN 143
Cdd:COG5038   1119 LLGTAEIDLSKLEPGGTTNSN 1139
 
Name Accession Description Interval E-value
cPLA2_Grp-IVB-IVD-IVE-IVF cd07201
Group IVB, IVD, IVE, and IVF cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group ...
299-847 0e+00

Group IVB, IVD, IVE, and IVF cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group IVB, IVD, IVE, and IVF cPLA2 consists of two domains: the regulatory C2 domain and alpha/beta hydrolase PLA2 domain. Group IVB, IVD, IVE, and IVF cPLA2 are also referred to as cPLA2-beta, -delta, -epsilon, and -zeta respectively. cPLA2-beta is approximately 30% identical to cPLA2-alpha and it shows low enzymatic activity compared to cPLA2alpha. cPLA2-beta hydrolyzes palmitic acid from 1-[14C]palmitoyl-2-arachidonoyl-PC and arachidonic acid from 1-palmitoyl-2[14C]arachidonoyl-PC, but not from 1-O-alkyl-2[3H]arachidonoyl-PC. cPLA2-delta, -epsilon, and -zeta are approximately 45-50% identical to cPLA2-beta and 31-37% identical to cPLA2-alpha. It's possible that cPLA2-beta, -delta, -epsilon, and -zeta may have arisen by gene duplication from an ancestral gene. The catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms. Movement of the cPLA2 lid possibly exposes a greater hydrophobic surface and the active site. cPLA2 belongs to the alpha-beta hydrolase family which is identified by a characteristic nucleophile elbow with a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). Calcium is required for cPLA2 to bind with membranes or phospholipids. The calcium-dependent phospholipid binding domain resides in the N-terminal region of cPLA2; it is homologous to the C2 domain superfamily which is not included in this hierarchy. It includes PLA2G4B, PLA2G4D, PLA2G4E, and PLA2G4F from humans.


Pssm-ID: 132840 [Multi-domain]  Cd Length: 541  Bit Score: 845.85  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 299 MKADMSSsGDLDLRLGFDLCDGEQEFLDKRKQVASKALQRVMGLSEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQE 378
Cdd:cd07201     1 LKAEESS-EDLDVRLGFDLCAEEQEFLQKRKKVVAAALKKALQLEEDLQEDEVPVVAVMTTGGGTRALTSMYGSLLGLQK 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 379 LGLLDAVTYLSGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCSSKIGMLSPKQFEYYSREKRAWESRGHSMSFTDL 458
Cdd:cd07201    80 LGLLDCVSYITGLSGSTWTMATLYEDPNWSQKDLEGPIEEARKHVTKSKLGCFSPERLKYYRQELSEREQEGHKVSFIDL 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 459 WGLIIEYFLNQEENPAKLSDQQETVSQGQNPYPIYASINVHKNISGDDFAEWCEFTPYEVGFPKYGAYVPTELFGSEFFM 538
Cdd:cd07201   160 WGLIIESMLHDKKNDHKLSDQREAVSQGQNPLPIYLSLNVKDNLSTQDFREWVEFTPYEVGFLKYGAFIPAEDFGSEFFM 239
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 539 GRLLHFWPEPRICYLQGMWGSAFAASLYEIFLKLGGLSLSFLDWHRGSVSVTDDWPKLRKQDPTRLpTRLFTPMSSFSQA 618
Cdd:cd07201   240 GRLMKKLPESRICFLQGMWSSIFSLNLLDAWYLATGSEDFWHRWTRDKVNDIEDEPPLPPRPPERL-TTLLTPGGPLSQA 318
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 619 VLDIFTSRITCAQTFNFTRGLCMYKDYTARKDFVVSEDAwhshnygYPDACPNQLTPMKDFLSLVDGGFAINSPFPLVLQ 698
Cdd:cd07201   319 FRDFLTSRPTVSQYFNFLRGLQLHNDYLENKGFSTWKDT-------HLDAFPNQLTPSEDHLCLVDTAFFINTSYPPLLR 391
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 699 PQRAVDLIVSFDYSLEGPFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAEDPCSPIVLHFPLVNRTFRTHL 778
Cdd:cd07201   392 PERKVDVILSLNYSLGSQFEPLKQASEYCSEQGIPFPKIELSPEDQENLKECYVFEDADNPEAPIVLHFPLVNDTFRKYK 471
                         490       500       510       520       530       540
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1386876255 779 APGVERQTAEEKAFGDFiINGPDTAYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIRHALQLALDRRRQ 847
Cdd:cd07201   472 APGVERSPEEMAQGGVD-VSSSDSPYATRNLTYTEEDFDKLVKLTSYNVLNNKDLILQALRLAVERKKQ 539
cPLA2_like cd00147
Cytosolic phospholipase A2, catalytic domain; hydrolyses arachidonyl phospholipids; Catalytic ...
311-838 0e+00

Cytosolic phospholipase A2, catalytic domain; hydrolyses arachidonyl phospholipids; Catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms. Movement of the cPLA2 lid possibly exposes a greater hydrophobic surface and the active site. cPLA2 belongs to the alpha-beta hydrolase family which is identified by a characteristic nucleophile elbow with a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). Calcium is required for cPLA2 to bind with membranes or phospholipids. Group IV cPLA2 includes six intercellular enzymes: cPLA2alpha, cPLA2beta, cPLA2gamma, cPLA2delta, cPLA2epsilon, and cPLA2zeta.


Pssm-ID: 132835 [Multi-domain]  Cd Length: 438  Bit Score: 531.82  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 311 LRLGFDLCDGEQEFLDKRKQVASKALQRVMGLSEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQELGLLDAVTYLSG 390
Cdd:cd00147     1 VRLASDLCDEEKEFLEKRRKVVAKALKKFLGLENDLNPDEVPVIAILGSGGGYRAMTGGAGALKALDEGGLLDCVTYLSG 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 391 VSGSSWCISTLYRDPSWSQKALQGPIKYASERVCSSKIGMLSPKQFEYYSREKRAWESRGHSMSFTDLWGLIIEYFLNQE 470
Cdd:cd00147    81 LSGSTWLMASLYSNPDWSQKDLDEAIEWLKRHVIKSPLLLFSPERLKYYAKELEEKKKAGFNVSLTDFWGLLLGYTLLKE 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 471 ENPAKLSDQQETVSQGQNPYPIYASINV-HKNISGDDFAEWCEFTPYEVGFPKYGAYVPTELFGSEFFMGRLLHFWPEPR 549
Cdd:cd00147   161 LTDSSLSDQREFVQNGQNPLPIYTALNVkPGETSINDFATWFEFTPYEVGFPKYGAFIPTEYFGSKFFMGRLVKKIPEDR 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 550 ICYLQGMWGSAFaaslyeiflklgglSLSFLDWhrgsvsvtddwpklrkqdptrlptrlftpmssfsqavldiftsritc 629
Cdd:cd00147   241 LGFLMGTWGSAF--------------SIILLDA----------------------------------------------- 259
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 630 AQTFNFTRGLCMYKDYTARkdfvvsedawhshnygypdacPNQLTPMKDFLSLVDGGFAIN-SPFPLVLQPQRAVDLIVS 708
Cdd:cd00147   260 GKYPNFFYGLNLHKSYLRS---------------------PNPLITSSDTLHLVDAGLDINnIPLPPLLRPERDVDVILS 318
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 709 FDYSLEGP--FEVLQVTEKYCRDR---GIPFPRIEVDP-KDSEDPRECYLFAEAEDPCSPIVLHFPLVNRTFRthlapgv 782
Cdd:cd00147   319 FDFSADDPdwPNGLKLVATYERQAssnGIPFPKIPDSVtFDNLGLKECYVFFGCDDPDAPLVVYFPLVNDTFR------- 391
                         490       500       510       520       530
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1386876255 783 erqtaeekafgDFIINGPDTAYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIRHAL 838
Cdd:cd00147   392 -----------KYDFDDPNSPYSTFNLSYTDEEFDRLLELAFYNVTNNKDTILQAL 436
cPLA2_Grp-IVA cd07200
Group IVA cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group IVA cPLA2, an 85 ...
311-851 7.05e-117

Group IVA cytosolic phospholipase A2; catalytic domain; Ca-dependent; Group IVA cPLA2, an 85 kDa protein, consists of two domains: the regulatory C2 domain and the alpha/beta hydrolase PLA2 domain. Group IVA cPLA2 is also referred to as cPLA2-alpha. The catalytic domain of cytosolic phospholipase A2 (cPLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms. Movement of the cPLA2 lid possibly exposes a greater hydrophobic surface and the active site. cPLA2 belongs to the alpha-beta hydrolase family which is identified by a characteristic nucleophile elbow with a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). Calcium is required for cPLA2 to bind with membranes or phospholipids. A calcium-dependent phospholipid binding domain resides in the N-terminal region of cPLA2; it is homologous to the C2 domain superfamily which is not included in this hierarchy. Includes PLA2G4A from chicken, human, and frog.


Pssm-ID: 132839  Cd Length: 505  Bit Score: 364.46  E-value: 7.05e-117
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 311 LRLGFDLCDGEQEFLDKRKQVASKALQRVMGL--SEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQELGLLDAVTYL 388
Cdd:cd07200     1 LRFSMALCDEEKEFRQARKMRVREALRKLLGEegPKVTSLREVPVIALLGSGGGFRAMVGMSGAMKALYDSGVLDCATYV 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 389 SGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCSSKIGMLSPKQFEYYSreKRAWESR--GHSMSFTDLWGLIIEYF 466
Cdd:cd07200    81 AGLSGSTWYMSTLYSHPDFPEKGPGEINKELMRNVSSSPLLLLTPQLLKRYT--EALWEKKssGQPVTFTDFFGMLIGET 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 467 LNQEENPAKLSDQQETVSQGQNPYPIYASINVHKNISGDDFAEWCEFTPYEVGFPKYGAYVPTELFGSEFFMGRLLHFWP 546
Cdd:cd07200   159 LIKERMDTKLSDLQEKVNDGQVPLPLFTCLHVKPDVSALMFHDWVEFSPYEIGMAKYGTFMSPDLFGSKFFMGFLAKKYP 238
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 547 EPRICYLQGMWGSAFAaslyeIFLKlgglslsfldwhrgsvsvtddwpklrkqdptrlptrlftpmssfsqAVLDiFTSR 626
Cdd:cd07200   239 ENPLHFLMGVWGSAFS-----ILFN----------------------------------------------RVLG-RNSR 266
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 627 I-TCAQTFNFTRGLCMYKDY------TARKDFVVSEDAWhshnygyPDACPNQLTPM---KDFLSLVDGGFAINSPFPLV 696
Cdd:cd07200   267 EgRAGKVHNFMLGLNLNTSYplsplsDLATDEPEAAVAD-------ADEFERIYEPLdtkSKKIHVVDSGLTFNLPYPLI 339
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 697 LQPQRAVDLIVSFDYSLEG-----PFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAEDPCSPIVLHFPLVN 771
Cdd:cd07200   340 LRPQRGVDLIISFDFSARPsdsspPFKELLLAEKWARMNGLPFPPIDFKVFDREGLKECYVFKPKNDDDCPTVIHFVLCN 419
                         490       500       510       520       530       540       550       560
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 772 RTFRTHLAPGVERQTAEEKAFG-DFIINGPDTAYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIRHALQLALDRRRQAGG 850
Cdd:cd07200   420 INFRNLKAPGVPRETEEEKEFAnFDIFDDPETPFSTFNFQYPNQAFDRLHELMEFNTLNNIDVIKDAIRESIEKRRRNPS 499

                  .
gi 1386876255 851 R 851
Cdd:cd07200   500 R 500
cPLA2_Grp-IVC cd07202
Group IVC cytoplasmic phospholipase A2; catalytic domain; Ca-independent; Group IVC cPLA2, a ...
317-835 4.27e-95

Group IVC cytoplasmic phospholipase A2; catalytic domain; Ca-independent; Group IVC cPLA2, a small 61 kDa protein, is a single domain alpha/beta hydrolase. It lacks a C2 domain; therefore, it has no Ca-dependence. Group IVC cPLA2 is also referred to as cPLA2-gamma. The cPLA2-gamma enzyme is predominantly found in cardiac and skeletal muscles, and to a lesser extent in the brain. Human cPLA2-gamma is approximately 30% identical to cPLA2-alpha. The catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms. Movement of the cPLA2 lid possibly exposes a greater hydrophobic surface and the active site. cPLA2 belongs to the alpha-beta hydrolase family which is identified by a characteristic nucleophile elbow with a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). Includes PLA2G4C protein from human and Pla2g4c protein from mouse.


Pssm-ID: 132841 [Multi-domain]  Cd Length: 430  Bit Score: 304.79  E-value: 4.27e-95
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 317 LCDGEQEFLDKRKQVASKALQRVmglseALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQELGLLDAVTYLSGVSGSSW 396
Cdd:cd07202     9 LNKEEKAAVVKRRKDVLQSLQKL-----GINADKAPVIAVLGSGGGLRAMIACLGVLSELDKAGLLDCVTYLAGVSGSTW 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 397 CISTLYRDPSWSQK--ALQGPIKYASERVCSSKigmlspkqfeYYSREKRAWESRGHSMSFTDLWGLIIEYFLNQEENPA 474
Cdd:cd07202    84 CMSSLYTEPDWSTKlqTVEDELKRRLQKVSWDF----------AYALKKEIQAAKSDNFSLTDFWAYLVVTTFTKELDES 153
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 475 KLSDQQETVSQGQNPYPIYASINvhknisgDDFAE---------WCEFTPYEVGFPKYGAYVPTELFGSEFFMGRLLHFW 545
Cdd:cd07202   154 TLSDQRKQSEEGKDPYPIFAAID-------KDLSEwkerktgdpWFEFTPHEAGYPLPGAFVSTTHFGSKFENGKLVKQE 226
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 546 PEPRICYLQGMWGSAFAASLyEIflkLGGLSLSFLDWHRgsvsvtddwpklrkqdptrlptrlftpmssfsqavldifts 625
Cdd:cd07202   227 PERDLLYLRALWGSALADGE-EI---AKYICMSLWIWGT----------------------------------------- 261
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 626 ritcaqTFNFtrglcMYKdYTARKDfvvsedawhshnygyPDACPNqltpmKDFLSLVDGGFAINSPFPLVLQPQRAVDL 705
Cdd:cd07202   262 ------TYNF-----LYK-HGDIAD---------------KPAMRS-----RETLHLMDAGLAINSPYPLVLPPVRNTDL 309
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 706 IVSFDYSLEGPFEVLQVTEKYCRDRGIPFPRIEVDP--KDSEDPRECYLFaEAEDpcSPIVLHFPLVNRTfrthlapgve 783
Cdd:cd07202   310 ILSFDFSEGDPFETIKDTAEYCRKHNIPFPQVDEAKldQDAEAPKDFYVF-KGEN--GPVVMHFPLFNKV---------- 376
                         490       500       510       520       530
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1386876255 784 rqtaeekAFGDFIINGPDTaYGMMDFTYEPKEFDRLVTLSRYNVLNNKETIR 835
Cdd:cd07202   377 -------NCGDQLEDWRKE-YRTFQGAYSTDQVRQLLELAKANVKNNKEKIM 420
PLAc smart00022
Cytoplasmic phospholipase A2, catalytic subunit; Cytosolic phospholipases A2 hydrolyse ...
306-795 2.82e-53

Cytoplasmic phospholipase A2, catalytic subunit; Cytosolic phospholipases A2 hydrolyse arachidonyl phospholipids. Family includes phospholipases B isoforms.


Pssm-ID: 214474  Cd Length: 549  Bit Score: 194.57  E-value: 2.82e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  306 SGDLDLRLGFDLCDGEQEFLDKRKQVASKALQRVMGL-------SEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGLQE 378
Cdd:smart00022  23 SDIPLVRFSMGLSDNETEFLQKRKDYTNEAMKSFLGRansnfldSSLLNSSDVPKIAIAGSGGGFRAMVGGAGVLKAMDN 102
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  379 L-------GLLDAVTYLSGVSGSSWCISTLYRDPsWSqkalqgPIKYASERvcsSKIGMLS-------------PKQFEY 438
Cdd:smart00022 103 RtdghglgGLLQSATYLAGLSGGTWLVGTLASNN-FT------PVKGPEEI---NSEWMFSvsinnpginllltAQFYKS 172
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  439 YSREKRAWESRGHSMSFTDLWGLIIEY-FLNQEENPA-KLSD--QQETVSQGQNPYPIYASINVHKNISGDDFAEWC-EF 513
Cdd:smart00022 173 IVDAVWKKKDAGFNISLTDIWGRALSYnLFDSLGGPNyTLSSlrDQEKFQNAEMPLPIFVADGRKPGESVINFNDTVfEF 252
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  514 TPYEVG--FPKYGAYVPTELFGSEFFMGRLLHFWPEPRICYLQGMWGSAFaASLYEIFLklgGLSLSFLDWHRGSVSVTD 591
Cdd:smart00022 253 SPFEFGswDPKLNAFMPPEYLGSKFFNGTPVKKGKCIPNFDNAGFIMGTS-SSLFNRFL---LVLSNSTMEESLIKIIIK 328
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  592 DWPKLRKQDPTRLPTRLFTPMSSFSqAVLDIFTSRITCAQTFNFTRGLCMYKDYTARK--------DFVVSEDAWHSHNY 663
Cdd:smart00022 329 HILKDLSSDSDDIAIYPPNPFKDDA-YVQRMLTNSLGDSDLLNLVDGGEDGENIPLSPllqpersvDVIFAVDASADTDE 407
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  664 GYPDACPnqLTPMKDfLSLVDGGFAINSPFPLVLQPQRAVDLIVSFDYSLEG----------PFEVLQVTEKYCRDRGIP 733
Cdd:smart00022 408 FWPNGSS--LVKTYE-RHVVDQGLTFNLPFPYVPDTQTFVNLGLSTKPTFFGcdssnltyipPLVVYLPNEKWAYNSNIS 484
                          490       500       510       520       530       540
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1386876255  734 FPRIevDPKDSED---PRECYLFA----EAEDPCspiVLHFPLVNRTFRTHLAPGVERQTAEEKAFGDF 795
Cdd:smart00022 485 TFKI--SYSVFEReglIKNGYEFAtvnnSTDDDC---FIHCVACAIIFRKQEAPNVTLPSECSKCFYNY 548
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
45-161 2.75e-50

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: 172.45  E-value: 2.75e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:cd04036     2 LTVRVLRATNITKGDLLSTPDCYVELWLPTASDEKKRTKTIKNSINPVWNETFEFRIQSQVKNVLELTVMDEDYVMDDHL 81
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 1386876255 125 FSILFDTSTLQLGQPCTKNFT-RQQDPKELEVEFTLEK 161
Cdd:cd04036    82 GTVLFDVSKLKLGEKVRVTFSlNPQGKEELEVEFLLEL 119
PLA2_B pfam01735
Lysophospholipase catalytic domain; This family consists of Lysophospholipase / phospholipase ...
354-799 1.04e-35

Lysophospholipase catalytic domain; This family consists of Lysophospholipase / phospholipase B EC:3.1.1.5 and cytosolic phospholipase A2 EC:3.1.4 which also has a C2 domain pfam00168. Phospholipase B enzymes catalyze the release of fatty acids from lysophsopholipids and are capable in vitro of hydrolysing all phospholipids extractable form yeast cells. Cytosolic phospholipase A2 associates with natural membranes in response to physiological increases in Ca2+ and selectively hydrolyses arachidonyl phospholipids, the aligned region corresponds the the carboxy-terminal Ca2+-independent catalytic domain of the protein as discussed in.


Pssm-ID: 366778  Cd Length: 490  Bit Score: 142.12  E-value: 1.04e-35
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 354 VAVLGSGGGTRAMTSLYGSLAGL--------QELGLLDAVTYLSGVSGSSWCISTLYRDPSWSQKALQGPIKYASERVCS 425
Cdd:pfam01735   1 IGIAGSGGGYRAMLGGAGVLAALdnrtdnetGLGGLLQSATYLAGLSGGSWLVGSLAVNNFTSVQDFPDKPEDISIWDLN 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 426 SKI----GMLSPKQFEYYSREKRAWESR---GHSMSFTDLWGLIIEY-FLNQEEN-PA-KLSD--QQETVSQGQNPYPIY 493
Cdd:pfam01735  81 HSIfnpgGLNIPQNIKRYDDIVDAVWKKknaGFNVSLTDIWGRALSYtLIPSLRGgPNyTWSSlrDAEWFQNAEMPFPII 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 494 ASINVHKNISGDDF-AEWCEFTPYEVGF--PKYGAYVPTELFGSEFFMGRLLHFWPEPRICYLQGMWGSAFA-------- 562
Cdd:pfam01735 161 VADGRKPGTTVINLnATVFEFSPYEFGSwdPTLNSFTPTEYLGTKFFNGTPVKKGKCVPGFDNAGFVMGTSStlfnqfll 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 563 ----ASLYEIFLK------LGGLSLSFLDwhrgsVSVtddWPKLRKQDPTRLPTRLFTPMSSFSqavlDIFTSRiTCAQT 632
Cdd:pfam01735 241 vinsTSSLPSFLNiiikhiLKDLSEDSDD-----ISQ---YPPNPFQDANDINQNATNSIVDSD----TLFLVD-GGEDG 307
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 633 FNFTRGLCMYKDYTArkDFVVSEDAWHSHNYGYPDAC--PN----QLTPM----KDFLSLVDGGFAINspFPLVLQP-QR 701
Cdd:pfam01735 308 QNIPLWPLLQPERDV--DVIFAVDNSADTDNDWPDGVslVDtyerQFEPLqvkgKKFPYVPDGNTFVN--LGLNTRPtFF 383
                         410       420       430       440       450       460       470       480
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 702 AVDLIVSFDYSLEG-----PFEVLQVTEKYCRDRGIPFPRIEVDPKDSEDPRECYLFAEAED--PCSPIVLHFPLVNRTF 774
Cdd:pfam01735 384 GCDARNLTDLSARVsdstpPLVVYLPNEPWSYMSNLSTFKISYNDSERQGLIENGFEAATQDneTDDPTFAHCVACAIIR 463
                         490       500
                  ....*....|....*....|....*
gi 1386876255 775 RTHLAPGVERQTAEEKAFGDFIING 799
Cdd:pfam01735 464 RKLERLNITLPSECEQCFENYCWNG 488
cPLA2_C2 pfam18695
Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a ...
180-300 8.64e-33

Cytosolic phospholipases A2 C2-domain; Cytosolic phospholipases A2 (cPLA2s) consist of a family of calcium-sensitive enzymes that function to generate lipid second messengers through hydrolysis of membrane-associated glycerophospholipids. In humans, the cPLA2 family contains six isoforms. Structural information of full length cPLA2alpha apo form, shows that it is composed of two domains; an N-terminal Ca2 + binding C2 domain and a C-terminal alpha/beta hydrolase core. This entry describes the N-terminal Ca2+ binding C2 domain which is composed of an eight-stranded antiparallel beta-sandwich consisting of two four-stranded beta-sheets. C2 domains are present in many lipid-binding proteins including Copines, CAPRI and Rabphilin-3A all of which are involved in membrane trafficking.


Pssm-ID: 465834  Cd Length: 111  Bit Score: 122.36  E-value: 8.64e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 180 CLRIQGTVTGDKTaslgELGSRQIQLAVPGAYEKPQPLQPTSEPGLPVNFTFHVNPVLSPKLHIKLQeQLQVFHSGPSDE 259
Cdd:pfam18695   1 CLEVQVDSRGSKK----EQGKKDLQLTVPGSYEGTQTISLGPEPGCPDPFCFHYPKYWEPELHVELP-KSSVLQSGWNSD 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|.
gi 1386876255 260 LEAQTSKMdkaSILLSSLPLNEELTklVDLEEGQQVSLRMK 300
Cdd:pfam18695  76 LEKETSKL---TVPLKSLPLGQEVT--VPLPEGQELHLRLK 111
cPLA2_Fungal_PLB cd07203
Fungal Phospholipase B-like; cPLA2 GrpIVA homologs; catalytic domain; Fungal phospholipase B ...
317-712 3.47e-22

Fungal Phospholipase B-like; cPLA2 GrpIVA homologs; catalytic domain; Fungal phospholipase B are Group IV cPLA2 homologs. Aspergillus PLA2 is Ca-dependent, yet it does not contain a C2 domain. PLB deacylates both sn-1 and sn-2 chains of phospholipids and are abundantly expressed in fungi. It shows lysophospholipase (lysoPL) and transacylase activities. The active site residues from cPLA2 are also conserved in PLB. Like cPLA2, PLB also has a consensus sequence of Sm-X-Nu-Sm (Sm = small residue, X = any residue and Nu = nucleophile). It includes PLB1 from Schizosaccharomyces pombe, PLB2 from Candida glabrata, and PLB3 from Saccharomyces cerevisiae. PLB1, PLB2, and PLB3 show PLB and lysoPL activities; PLB3 is specific for phosphoinositides.


Pssm-ID: 132842  Cd Length: 552  Bit Score: 101.67  E-value: 3.47e-22
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 317 LCDGEQEFLDKRKQVASKALQRVMG--------LSEALHCDQVPVVAVLGSGGGTRAMTSLYGSLAGL---------QEL 379
Cdd:cd07203    20 LSTNEQEYLEKRRSITNSALKDFLSranlngddDLDSNNSSNGPRIGIAVSGGGYRAMLTGAGAIAAMdnrtdnateHGL 99
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 380 -GLLDAVTYLSGVSGSSWCISTLYRDpSWS--QKALQGPIKYASERVCSSKiGMLSPKQFEYYSREKRAWESR---GHSM 453
Cdd:cd07203   100 gGLLQSSTYLSGLSGGSWLVGSLASN-NFTsvQDLLADSIWNLDHSIFNPY-GAAIVKTLNYYTNLANEVAQKkdaGFNV 177
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 454 SFTDLWGLIIEY-FLNQEENPAKL---SDQQETVSQ-GQNPYPI--YASINVHKNISGDDFAEWcEFTPYEVGF--PKYG 524
Cdd:cd07203   178 SLTDIWGRALSYqLFPALRGGPNLtwsSIRNQSWFQnAEMPFPIivADGRYPGETIINLNATVF-EFTPYEFGSwdPSLN 256
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 525 AYVPTELFGSEFFMGRllhfwPEPRICYLQgmwgsafaaslYEiflklgglSLSFLdwhrgsvsvtddwpklrkqdptrl 604
Cdd:cd07203   257 SFTPTEYLGTNVSNGV-----PPNGSCVNG-----------FD--------NAGFV------------------------ 288
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255 605 ptrLFTPMSSFSQAVLDIFTSritcaQTFNFTRglcmYKDYTARKDFVVSEDAWHSHN----YGYPDACPNQLTPM--KD 678
Cdd:cd07203   289 ---MGTSSTLFNQFLLQINST-----SSPSFIK----LIATGFLLDILKENQDIASYIpnpfQGYTYSNSNGTNPIvdSD 356
                         410       420       430
                  ....*....|....*....|....*....|....*.
gi 1386876255 679 FLSLVDGGFAI-NSPF-PLvLQPQRAVDLIVSFDYS 712
Cdd:cd07203   357 YLDLVDGGEDGqNIPLwPL-LQPERDVDVIFAFDSS 391
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
45-139 2.63e-15

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: 72.13  E-value: 2.63e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255   45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:smart00239   2 LTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEKKKTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRDDF 81
                           90
                   ....*....|....*.
gi 1386876255  125 F-SILFDTSTLQLGQP 139
Cdd:smart00239  82 IgQVTIPLSDLLLGGR 97
C2 cd00030
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ...
45-122 6.40e-15

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: 71.33  E-value: 6.40e-15
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSpsQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSD 122
Cdd:cd00030     1 LRVTVIEARNLPAKDLNGKSDPYVKVSLGGKQKF--KTKVVKNTLNPVWNETFEFPVLDPESDTLTVEVWDKDRFSKD 76
C2 pfam00168
C2 domain;
45-145 2.89e-14

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 69.27  E-value: 2.89e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLpTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:pfam00168   3 LTVTVIEAKNLPPKDGNGTSDPYVKVYL-LDGKQKKKTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRFGRDDF 81
                          90       100
                  ....*....|....*....|..
gi 1386876255 125 F-SILFDTSTLQLGQPCTKNFT 145
Cdd:pfam00168  82 IgEVRIPLSELDSGEGLDGWYP 103
Patatin_and_cPLA2 cd01819
Patatins and Phospholipases; Patatin-like phospholipase. This family consists of various ...
356-402 2.08e-10

Patatins and Phospholipases; Patatin-like phospholipase. This family consists of various patatin glycoproteins from plants. The patatin protein accounts for up to 40% of the total soluble protein in potato tubers. Patatin is a storage protein, but it also has the enzymatic activity of a lipid acyl hydrolase, catalyzing the cleavage of fatty acids from membrane lipids. Members of this family have also been found in vertebrates. This family also includes the catalytic domain of cytosolic phospholipase A2 (PLA2; EC 3.1.1.4) hydrolyzes the sn-2-acyl ester bond of phospholipids to release arachidonic acid. At the active site, cPLA2 contains a serine nucleophile through which the catalytic mechanism is initiated. The active site is partially covered by a solvent-accessible flexible lid. cPLA2 displays interfacial activation as it exists in both "closed lid" and "open lid" forms.


Pssm-ID: 132836 [Multi-domain]  Cd Length: 155  Bit Score: 60.12  E-value: 2.08e-10
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 1386876255 356 VLGSGGGTRAMtSLYGSLAGLQELGLLDAVTYLSGVSGSSWCISTLY 402
Cdd:cd01819     1 LSFSGGGFRGM-YHAGVLSALAERGLLDCVTYLAGTSGGAWVAATLY 46
C2A_Rabphilin_Doc2 cd04035
C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
38-122 3.02e-10

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: 58.45  E-value: 3.02e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  38 ETHPYYD-----LQVKVLRARNIQHTDKLSKADCYVRLW-LPTASVSPSQ-TRTVVNSSDPEWNETFPYqiHG-----AV 105
Cdd:cd04035     5 EFTLLYDpansaLHCTIIRAKGLKAMDANGLSDPYVKLNlLPGASKATKLrTKTVHKTRNPEFNETLTY--YGiteedIQ 82
                          90
                  ....*....|....*..
gi 1386876255 106 KNVLELALYDEDVLDSD 122
Cdd:cd04035    83 RKTLRLLVLDEDRFGND 99
C2C_MCTP_PRT cd08377
C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
45-117 5.97e-09

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: 54.61  E-value: 5.97e-09
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVspsQTRTVVNSSDPEWNETFPYQIHGaVKNVLELALYDED 117
Cdd:cd08377     3 LQVKVIRASGLAAADIGGKSDPFCVLELVNARL---QTHTIYKTLNPEWNKIFTFPIKD-IHDVLEVTVYDED 71
C2A_Tricalbin-like cd04044
C2 domain first repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
45-151 1.19e-08

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: 54.10  E-value: 1.19e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKA-DCYVRLWLPTASVSpSQTRTVVNSSDPEWNETFpYQIHGAVKNVLELALYDE-DVLDSD 122
Cdd:cd04044     4 LAVTIKSARGLKGSDIIGGTvDPYVTFSISNRREL-ARTKVKKDTSNPVWNETK-YILVNSLTEPLNLTVYDFnDKRKDK 81
                          90       100       110
                  ....*....|....*....|....*....|...
gi 1386876255 123 NVFSILFDTSTLqLGQP----CTKNFTRQQDPK 151
Cdd:cd04044    82 LIGTAEFDLSSL-LQNPeqenLTKNLLRNGKPV 113
C2A_RIM1alpha cd04031
C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are ...
45-139 1.72e-08

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: 53.41  E-value: 1.72e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLW-LPTASV-SPSQTRTVVNSSDPEWNETFPYQ-IHGA--VKNVLELALYDEDvL 119
Cdd:cd04031    18 LIVTVLQARDLPPRDDGSLRNPYVKVYlLPDRSEkSKRRTKTVKKTLNPEWNQTFEYSnVRREtlKERTLEVTVWDYD-R 96
                          90       100
                  ....*....|....*....|...
gi 1386876255 120 DSDNVF--SILFDTSTLQL-GQP 139
Cdd:cd04031    97 DGENDFlgEVVIDLADALLdDEP 119
C2B_Synaptotagmin cd00276
C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking ...
45-124 2.96e-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: 47.19  E-value: 2.96e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWL--PTASVSPSQTRTVVNSSDPEWNETFPYQI-HGAVKNV-LELALYDEDVLD 120
Cdd:cd00276    16 LTVVVLKARNLPPSDGKGLSDPYVKVSLlqGGKKLKKKKTSVKKGTLNPVFNEAFSFDVpAEQLEEVsLVITVVDKDSVG 95

                  ....
gi 1386876255 121 SDNV 124
Cdd:cd00276    96 RNEV 99
C2_NEDD4_NEDD4L cd04033
C2 domain present in the Human neural precursor cell-expressed, developmentally down-regulated ...
45-122 3.69e-06

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: 46.96  E-value: 3.69e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTAS----VSPSQTRTVVNSSDPEWNETFPYQIHgAVKNVLELALYDEDVLD 120
Cdd:cd04033     2 LRVKVLAGIDLAKKDIFGASDPYVKISLYDPDgngeIDSVQTKTIKKTLNPKWNEEFFFRVN-PREHRLLFEVFDENRLT 80

                  ..
gi 1386876255 121 SD 122
Cdd:cd04033    81 RD 82
C2B_Rabphilin_Doc2 cd08384
C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
45-122 8.39e-06

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: 46.19  E-value: 8.39e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWL-PTASvSPSQTRTVVNSS--DPEWNETFPYQI--HGAVKNVLELALYDEDVL 119
Cdd:cd08384    15 LIVGIIRCVNLAAMDANGYSDPFVKLYLkPDAG-KKSKHKTQVKKKtlNPEFNEEFFYDIkhSDLAKKTLEITVWDKDIG 93

                  ...
gi 1386876255 120 DSD 122
Cdd:cd08384    94 KSN 96
C2D_Tricalbin-like cd04040
C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
45-122 1.77e-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: 1.77e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQT--RTVvnssDPEWNETFPYQIHGAVKNVLELALYDEDVLDSD 122
Cdd:cd04040     1 LTVDVISAENLPSADRNGKSDPFVKFYLNGEKVFKTKTikKTL----NPVWNESFEVPVPSRVRAVLKVEVYDWDRGGKD 76
C2_PKC_alpha_gamma cd04026
C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha ...
44-102 1.79e-05

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: 44.95  E-value: 1.79e-05
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1386876255  44 DLQVKVLRARNIQHTDKLSKADCYVRLWL-PTASVSPSQ-TRTVVNSSDPEWNETFPYQIH 102
Cdd:cd04026    14 KLTVEVREAKNLIPMDPNGLSDPYVKLKLiPDPKNETKQkTKTIKKTLNPVWNETFTFDLK 74
C2A_Synaptotagmin-8 cd08387
C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking ...
45-117 1.85e-05

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: 44.70  E-value: 1.85e-05
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1386876255  45 LQVKVLRARNIQHTDKLSKAD--CYVRLwLPTASvSPSQTRTVVNSSDPEWNETFPYQIHGAV--KNVLELALYDED 117
Cdd:cd08387    18 LNVKLIQARNLQPRDFSGTADpyCKVRL-LPDRS-NTKQSKIHKKTLNPEFDESFVFEVPPQElpKRTLEVLLYDFD 92
C2B_Synaptotagmin-7 cd08405
C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
44-124 2.09e-05

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: 45.10  E-value: 2.09e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  44 DLQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVV--NSSDPEWNETFPYQIhgAVKNVLELALyDEDVLDS 121
Cdd:cd08405    16 RITVNIIKARNLKAMDINGTSDPYVKVWLMYKDKRVEKKKTVIkkRTLNPVFNESFIFNI--PLERLRETTL-IITVMDK 92

                  ...
gi 1386876255 122 DNV 124
Cdd:cd08405    93 DRL 95
C2A_Synaptotagmin-like cd04024
C2 domain first repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
45-123 2.40e-05

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: 44.72  E-value: 2.40e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTD--KLSKADCYVRLwlptaSVSPSQ--TRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLD 120
Cdd:cd04024     3 LRVHVVEAKDLAAKDrsGKGKSDPYAIL-----SVGAQRfkTQTIPNTLNPKWNYWCEFPIFSAQNQLLKLILWDKDRFA 77

                  ...
gi 1386876255 121 SDN 123
Cdd:cd04024    78 GKD 80
C2_Perforin cd04032
C2 domain of Perforin; Perforin contains a single copy of a C2 domain in its C-terminus and ...
45-122 4.22e-05

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: 43.79  E-value: 4.22e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIqHTDKLSKADCYVRLWLPTASVspsQTRTVVNSSDPEWNETFPYqihGAVK----NVLELALYDEDVL- 119
Cdd:cd04032    30 LTVTVLRATGL-WGDYFTSTDGYVKVFFGGQEK---RTEVIWNNNNPRWNATFDF---GSVElspgGKLRFEVWDRDNGw 102

                  ...
gi 1386876255 120 DSD 122
Cdd:cd04032   103 DDD 105
C2_ArfGAP cd04038
C2 domain present in Arf GTPase Activating Proteins (GAP); ArfGAP is a GTPase activating ...
45-122 5.31e-05

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: 43.85  E-value: 5.31e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSkADCYVRLWLPTASVspsQTRTVVNSSDPEWNETFPYqihgAVKN---VLELALYDEDVLDS 121
Cdd:cd04038     4 LKVRVVRGTNLAVRDFTS-SDPYVVLTLGNQKV---KTRVIKKNLNPVWNEELTL----SVPNpmaPLKLEVFDKDTFSK 75

                  .
gi 1386876255 122 D 122
Cdd:cd04038    76 D 76
C2B_MCTP_PRT_plant cd08378
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
45-132 7.64e-05

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: 43.07  E-value: 7.64e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIqhtdKLSKADCYVRLWLPTASVSpsqTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNV 124
Cdd:cd08378     2 LYVRVVKARGL----PANSNDPVVEVKLGNYKGS---TKAIERTSNPEWNQVFAFSKDRLQGSTLEVSVWDKDKAKDDFL 74

                  ....*...
gi 1386876255 125 FSILFDTS 132
Cdd:cd08378    75 GGVCFDLS 82
C2B_Munc13 cd04027
C2 domain second repeat in Munc13 (mammalian uncoordinated) proteins; C2-like domains are ...
45-117 1.34e-04

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: 42.56  E-value: 1.34e-04
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVrlwlpTASVSPSQ--TRTVVNSSDPEWNETFPYQIHGAVKNVlELALYDED 117
Cdd:cd04027     3 ISITVVCAQGLIAKDKTGTSDPYV-----TVQVGKTKkrTKTIPQNLNPVWNEKFHFECHNSSDRI-KVRVWDED 71
C2_Munc13_fungal cd04043
C2 domain in Munc13 (mammalian uncoordinated) proteins; fungal group; C2-like domains are ...
47-136 1.75e-04

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: 42.25  E-value: 1.75e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  47 VKVLRARNIQHTDKLSKADCYVRLWLPTASVSPSQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLDSDNvfs 126
Cdd:cd04043     5 IRIVRAENLKADSSNGLSDPYVTLVDTNGKRRIAKTRTIYDTLNPRWDEEFELEVPAGEPLWISATVWDRSFVGKHD--- 81
                          90
                  ....*....|
gi 1386876255 127 iLFDTSTLQL 136
Cdd:cd04043    82 -LCGRASLKL 90
C2B_RasA1_RasA4 cd04025
C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase ...
45-151 1.78e-04

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: 42.09  E-value: 1.78e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPTASVspsQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVLdSDNV 124
Cdd:cd04025     2 LRCHVLEARDLAPKDRNGTSDPFVRVFYNGQTL---ETSVVKKSCYPRWNEVFEFELMEGADSPLSVEVWDWDLV-SKND 77
                          90       100
                  ....*....|....*....|....*....
gi 1386876255 125 F--SILFDTSTLQLGQPCTKNFTRQQDPK 151
Cdd:cd04025    78 FlgKVVFSIQTLQQAKQEEGWFRLLPDPR 106
C2_putative_Elicitor-responsive_gene cd04049
C2 domain present in the putative elicitor-responsive gene; In plants elicitor-responsive ...
45-122 2.21e-04

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: 41.93  E-value: 2.21e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLPT----ASVSPSQTRtvvnssDPEWNETFPYQI-HGAVKNVLELAL--YDED 117
Cdd:cd04049     3 LEVLLISAKGLQDTDFLGKIDPYVIIQCRTqerkSKVAKGDGR------NPEWNEKFKFTVeYPGWGGDTKLILriMDKD 76

                  ....*
gi 1386876255 118 VLDSD 122
Cdd:cd04049    77 NFSDD 81
C2C_KIAA1228 cd04030
C2 domain third repeat present in uncharacterized human KIAA1228-like proteins; KIAA proteins ...
45-107 2.28e-04

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: 41.87  E-value: 2.28e-04
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLW-LPTASVSPSQ-TRTVVNSSDPEWNETFPY----------QIHGAVKN 107
Cdd:cd04030    18 LIVTVHKCRNLPPCDSSDIPDPYVRLYlLPDKSKSTRRkTSVKKDNLNPVFDETFEFpvsleelkrrTLDVAVKN 92
C2_fungal_Inn1p-like cd08681
C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 ...
45-117 2.69e-04

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: 41.47  E-value: 2.69e-04
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWLP-TASVSPSQTRtvvNSSDPEWNETFPYQIHGAVKNVLELALYDED 117
Cdd:cd08681     3 LVVVVLKARNLPNKRKLDKQDPYCVLRIGgVTKKTKTDFR---GGQHPEWDEELRFEITEDKKPILKVAVFDDD 73
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
45-123 3.02e-04

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: 41.12  E-value: 3.02e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKL------SKADCYVRLWLPTASVspsQTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDV 118
Cdd:cd08391     3 LRIHVIEAQDLVAKDKFvgglvkGKSDPYVIVRVGAQTF---KSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDEDP 79

                  ....*
gi 1386876255 119 LDSDN 123
Cdd:cd08391    80 DKDDF 84
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
44-143 4.45e-04

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


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 43.98  E-value: 4.45e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255   44 DLQVKVLRARNIQHTDKLSKADCYVRLWLPTASVSPsqTRTVVNSSDPEWNETFPYQIHGAVKNVLELALYDEDVL-DSD 122
Cdd:COG5038   1041 YLTIMLRSGENLPSSDENGYSDPFVKLFLNEKSVYK--TKVVKKTLNPVWNEEFTIEVLNRVKDVLTINVNDWDSGeKND 1118
                           90       100
                   ....*....|....*....|.
gi 1386876255  123 NVFSILFDTSTLQLGQPCTKN 143
Cdd:COG5038   1119 LLGTAEIDLSKLEPGGTTNSN 1139
C2B_Munc13-like cd04009
C2 domain second repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
45-122 6.45e-04

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: 40.68  E-value: 6.45e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVRLWL-PT---ASVSPSQTRTVVNSSDPEWNETF-------PYQIHGAvknVLELAL 113
Cdd:cd04009    18 LRVEILNARNLLPLDSNGSSDPFVKVELlPRhlfPDVPTPKTQVKKKTLFPLFDESFefnvppeQCSVEGA---LLLFTV 94

                  ....*....
gi 1386876255 114 YDEDVLDSD 122
Cdd:cd04009    95 KDYDLLGSN 103
C2B_SLP_1-2-3-4 cd04020
C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically ...
45-123 7.32e-04

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: 41.15  E-value: 7.32e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  45 LQVKVLRARNIQHTDKLSKADCYVR--LWLPTASVSPSQTRTVVNSSDPEWNETFPYQ--IHGAVKNV-LELALYDEDVL 119
Cdd:cd04020    29 LHVWVKEAKNLPALKSGGTSDSFVKcyLLPDKSKKSKQKTPVVKKSVNPVWNHTFVYDgvSPEDLSQAcLELTVWDHDKL 108

                  ....
gi 1386876255 120 DSDN 123
Cdd:cd04020   109 SSND 112
C2_E3_ubiquitin_ligase cd04021
C2 domain present in E3 ubiquitin ligase; E3 ubiquitin ligase is part of the ubiquitylation ...
42-140 1.20e-03

C2 domain present in E3 ubiquitin ligase; E3 ubiquitin ligase is part of the ubiquitylation mechanism responsible for controlling surface expression of membrane proteins. The sequential action of several enzymes are involved: ubiquitin-activating enzyme E1, ubiquitin-conjugating enzyme E2, and ubiquitin-protein ligase E3 which is responsible for substrate recognition and promoting the transfer of ubiquitin to the target protein. E3 ubiquitin ligase is composed of an N-terminal C2 domain, 4 WW domains, and a HECTc 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.


Pssm-ID: 175988 [Multi-domain]  Cd Length: 125  Bit Score: 39.57  E-value: 1.20e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  42 YYDLQVKVLRArNIQHTDKLSKADCYVRLwlpTA-SVSPSQTRTVVNSSDPEWNETFPYQIHgaVKNVLELALYDEDVLD 120
Cdd:cd04021     1 KSQLQITVESA-KLKSNSKSFKPDPYVEV---TVdGQPPKKTEVSKKTSNPKWNEHFTVLVT--PQSTLEFKVWSHHTLK 74
                          90       100       110
                  ....*....|....*....|....*....|....*.
gi 1386876255 121 SD--------NVFSIL--------FDTSTLQLGQPC 140
Cdd:cd04021    75 ADvllgeaslDLSDILknhngkleNVKLTLNLSSEN 110
C2E_Ferlin cd04037
C2 domain fifth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
47-124 1.50e-03

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: 39.46  E-value: 1.50e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  47 VKVLRARNIQHTDKLSKADCYVRLWLPTASVSpSQTRTVVNSSDPEWNETFpyQIHGAV--KNVLELALYDEDVLDSDNV 124
Cdd:cd04037     4 VYVVRARNLQPKDPNGKSDPYLKIKLGKKKIN-DRDNYIPNTLNPVFGKMF--ELEATLpgNSILKISVMDYDLLGSDDL 80
C2_SRC2_like cd04051
C2 domain present in Soybean genes Regulated by Cold 2 (SRC2)-like proteins; SRC2 production ...
44-122 1.58e-03

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: 39.14  E-value: 1.58e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1386876255  44 DLQVKVLRARNIQHTDKLSKADCYVrlwlpTASVSPSQ-TRTVV---NSSDPEWNETFPYQIHGAVKN----VLELALYD 115
Cdd:cd04051     1 TLEITIISAEDLKNVNLFGKMKVYA-----VVWIDPSHkQSTPVdrdGGTNPTWNETLRFPLDERLLQqgrlALTIEVYC 75

                  ....*..
gi 1386876255 116 EDVLDSD 122
Cdd:cd04051    76 ERPSLGD 82
 
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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