VAMP-1/VAMP-2 Products

Description

VAMP2 (Synaptobrevin 2) is a small integral membrane protein found specifically in synaptic vesicles in neurons. Synaptobrevins/VAMPs, syntaxins, and the 25 kD synaptosomal associated protein SNAP25 are the main components of a protein complex involved in the docking and/or fusion of synaptic vesicles with the presynaptic membrane. VAMP2 is one of a family of integral membrane proteins of 11-13 kDa with the N terminal region exposed to the cytoplasm and a C terminal transmembrane domain. Two isoforms identified in the mammalian CNS Synaptobrevin 1/VAMP 1 and Synaptobrevin 2/VAMP 2 differ in their distribution within different brain regions. Synaptobrevin/VAMP is highly conserved between vertebrates and invertebrates. It is a major constituent of synaptic vesicles and peptidergic secretory granules in all neurons examined so far. In addition, it is present on secretory granules of neuroendocrine cells. Low levels of synaptobrevin 2/VAMP 2 are present in many other tissues where the protein resides on specialized microvesicles. In non-neuronal cells, the third isoform, Cellubrevin/VAMP 3, is present where it is localized to an endosomal membrane pool. Synaptobrevin/VAMP is an essential component of the exocytotic fusion machine, related to a larger protein family referred to as v SNAREs. It is the sole target for tetanus and several of the botulinal neurotoxins which cleave the protein at single sites in the C terminal portion of the molecule.

Bioinformatics

Entrez	6844 Human 22318 Mouse 24803 Rat
Product By Gene ID	6843
Alternate Names	SPAX1 SYB1 VAMP1 VAMP-1 VAMP-1/VAMP-2 vesicle associated membrane protein 1