3RK3

Truncated SNARE complex with complexin


ChainDomainClassArchitectureTopologyHomology
B1.20.5.110 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces
C1.20.5.110 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces
D1.20.5.110 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces
E1.20.5.580 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single Helix bin

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
APF00957Synaptobrevin (Synaptobrevin)Synaptobrevin- Family
BPF05739SNARE domain (SNARE)SNARE domain- Family
BPF00804Syntaxin (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
CPF00835SNAP-25 family (SNAP-25)SNAP-25 family- Family
DPF00835SNAP-25 family (SNAP-25)SNAP-25 family- Family
EPF05835Synaphin protein (Synaphin)Synaphin protein- Family

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
AVamp2
BSyntaxin 1a
CSNAP25
DSNAP25
EComplexin-1