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Vesicle-associated membrane protein

From Wikipedia, the free encyclopedia
Protein family
Protein family
Synaptobrevin
Three different views of the high resolution structure of a truncated neuronal SNARE complex. Legend: synaptobrevin-2 (red), Syntaxin-1 (pink), SNAP-25 (purple).
Identifiers
SymbolSynaptobrevin
PfamPF00957
InterProIPR016444
PROSITEPDOC00368
SCOP21sfc /SCOPe /SUPFAM
OPM superfamily197
OPM protein4wy4
Membranome198
Available protein structures:
Pfam  structures /ECOD  
PDBRCSB PDB;PDBe;PDBj
PDBsumstructure summary
Hypothetic models of VAMP2 conformations and engagement in SNARE complex assembly for neurotransmitter release

Vesicle associated membrane proteins (VAMPs) are a family ofSNARE proteins with similar structure, and are mostly involved invesicle fusion.

  • VAMP1 andVAMP2 proteins known assynaptobrevins are expressed in brain and are constituents of the synaptic vesicles, where they participate inneurotransmitter release.
  • VAMP3 (known as cellubrevin) is ubiquitously expressed and participates in regulated and constitutiveexocytosis as a constituent of secretory granules and secretory vesicles.
  • VAMP5 andVAMP7 participate in constitutive exocytosis.
    • VAMP5 is a constituent of secretory vesicles, myotubes and tubulovesicular structures.
    • VAMP7 is found both in secretory granules and endosomes.
  • VAMP8 (known as endobrevin) participates inendocytosis and is found in early endosomes. VAMP8 also participates the regulated exocytosis in pancreatic acinar cells.
  • VAMP4 is involved in transport from the Golgi.[1]

References

[edit]
  1. ^Steegmaier M, Klumperman J, Foletti DL, Yoo JS, Scheller RH (1999)."Vesicle-associated membrane protein 4 is implicated in trans-Golgi network vesicle trafficking".Mol. Biol. Cell.10 (6):1957–72.doi:10.1091/mbc.10.6.1957.PMC 25394.PMID 10359608.

External links

[edit]
Arrestin
Membrane-spanning 4A
Myelin
Pulmonary surfactant
Tetraspanin
Other/ungrouped
Synaptic vesicle
SNARE
Q-SNARE
R-SNARE
Synaptotagmin
Other
COPI
COPII
RME/Clathrin
Caveolae
Other/ungrouped
Vesicle formation
Adaptor protein complex 1:
Adaptor protein complex 2:
Adaptor protein complex 3:
Adaptor protein complex 4:
BLOC-1:
BLOC-2:
BLOC-3:
Coats:
Small GTPase
Other
Enzyme
(modulators)
ChATTooltip Choline acetyltransferase
AChETooltip Acetylcholinesterase
BChETooltip Butyrylcholinesterase
Transporter
(modulators)
CHTTooltip Choline transporter
VAChTTooltip Vesicular acetylcholine transporter
Release
(modulators)
Inhibitors
Enhancers


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