6MTI

Synaptotagmin-1 C2A, C2B domains and SNARE-pin proteins (5CCI) individually docked into Cryo-EM map of C2AB-SNARE complexes helically organized on lipid nanotube surface in presence of Mg2+


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
F [auth 6]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
A [auth 1]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
B [auth 2]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
B [auth 2]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8040954 3000965 SCOP2B (2022-06-29)
C [auth 3]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8040954 3000965 SCOP2B (2022-06-29)
C [auth 3]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
D [auth 4]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
D [auth 4]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8040954 3000965 SCOP2B (2022-06-29)
E [auth 5]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8040954 3000965 SCOP2B (2022-06-29)
E [auth 5]SCOP2B SuperfamilyC2 domain (calcium/lipid-binding domain calb)8086451 3000965 SCOP2B (2022-06-29)
AA [auth U]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
G [auth A]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
O [auth I]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
S [auth M]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
W [auth Q]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
K [auth E]SCOP2B SuperfamilySNARE fusion complex8043664 3001549 SCOP2B (2022-06-29)
BA [auth V]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
H [auth B]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
L [auth F]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
P [auth J]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
X [auth R]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
T [auth N]SCOP2B SuperfamilySNARE fusion complex8043665 3001549 SCOP2B (2022-06-29)
I [auth C]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)
Q [auth K]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)
U [auth O]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)
CA [auth W]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)
M [auth G]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)
Y [auth S]SCOP2B SuperfamilySNARE fusion complex8043667 3001549 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
F [auth 6]PF00168e6mti61 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
A [auth 1]PF00168e6mti11 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
B [auth 2]PF00168e6mti22 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
C [auth 3]PF00168e6mti32 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
D [auth 4]PF00168e6mti42 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
E [auth 5]PF00168e6mti52 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: C2 domain (From Topology)T: C2 domainF: PF00168ECOD (1.6)
AA [auth U]PF00957e6mtiU1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)
G [auth A]PF00957e6mtiA1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)
O [auth I]PF00957e6mtiI1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)
S [auth M]PF00957e6mtiM1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)
W [auth Q]PF00957e6mtiQ1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)
K [auth E]PF00957e6mtiE1 A: extended segmentsX: Synaptobrevin (From Topology)H: Synaptobrevin (From Topology)T: SynaptobrevinF: PF00957ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth 1],
F [auth 6]
PF00168C2 domain (C2)C2 domain- Domain
B [auth 2],
C [auth 3],
D [auth 4],
E [auth 5]
PF00168C2 domain (C2)C2 domain- Domain
PF00957Synaptobrevin (Synaptobrevin)Synaptobrevin- Family
PF05739SNARE domain (SNARE)SNARE domain- Family
PF00804Syntaxin (Syntaxin)SyntaxinSyntaxins are the prototype family of SNARE proteins. They usually consist of three main regions - a C-terminal transmembrane region, a central SNARE domain which is characteristic of and conserved in all syntaxins (Pfam:PF05739), and an N-terminal d ...Syntaxins are the prototype family of SNARE proteins. They usually consist of three main regions - a C-terminal transmembrane region, a central SNARE domain which is characteristic of and conserved in all syntaxins (Pfam:PF05739), and an N-terminal domain that is featured in this entry. This domain varies between syntaxin isoforms; in syntaxin 1A (Swiss:O35526) it is found as three alpha-helices with a left-handed twist. It may fold back on the SNARE domain to allow the molecule to adopt a 'closed' configuration that prevents formation of the core fusion complex - it thus has an auto-inhibitory role. The function of syntaxins is determined by their localisation. They are involved in neuronal exocytosis, ER-Golgi transport and Golgi-endosome transport, for example. They also interact with other proteins as well as those involved in SNARE complexes. These include vesicle coat proteins, Rab GTPases, and tethering factors [6].
Domain
PF00835SNAP-25 family (SNAP-25)SNAP-25 family- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth 1],
F [auth 6]
Synaptotagmin-1
B [auth 2],
C [auth 3],
D [auth 4],
E [auth 5]
Synaptotagmin-1
Vesicle-associated membrane protein 2
Syntaxin-1A
Synaptosomal-associated protein 25
Synaptosomal-associated protein 25

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth 1],
F [auth 6]
IPR000008C2 domainDomain
A [auth 1],
F [auth 6]
IPR001565SynaptotagminDomain
A [auth 1],
F [auth 6]
IPR035892C2 domain superfamilyHomologous Superfamily
B [auth 2],
C [auth 3],
D [auth 4],
E [auth 5]
IPR000008C2 domainDomain
B [auth 2],
C [auth 3],
D [auth 4],
E [auth 5]
IPR001565SynaptotagminDomain
B [auth 2],
C [auth 3],
D [auth 4],
E [auth 5]
IPR035892C2 domain superfamilyHomologous Superfamily
IPR016444Synaptobrevin/Vesicle-associated membrane proteinFamily
IPR042855v-SNARE, coiled-coil homology domainDomain
IPR001388Synaptobrevin-likeFamily
IPR000727Target SNARE coiled-coil homology domainDomain
IPR006012Syntaxin/epimorphin, conserved siteConserved Site
IPR010989SNAREHomologous Superfamily
IPR006011Syntaxin, N-terminal domainDomain
IPR045242SyntaxinFamily
IPR000727Target SNARE coiled-coil homology domainDomain
IPR039077SNAP25, N-terminal SNARE motif, chordatesDomain
IPR000928SNAP-25 domainDomain
IPR000727Target SNARE coiled-coil homology domainDomain
IPR039077SNAP25, N-terminal SNARE motif, chordatesDomain
IPR000928SNAP-25 domainDomain