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. VAMP1 is a member of the vesicle-associated membrane protein (VAMP)/synaptobrevin family. Multiple alternative splice variants that encode proteins with alternative carboxy ends have been described, but the full-length nature of some variants has not been defined.
Background References
1. Bourassa C V et al. VAMP1 mutation causes dominant hereditary spastic ataxia in Newfoundland families. Am J Hum Genet 91:548-552 (2012).
2. Bechtel S et al. The full-ORF clone resource of the German cDNA consortium. BMC Genomics 8:399-399 (2007).
Sequence Similarity
Belongs to the synaptobrevin family.
Tissue Specificity
Nervous system, skeletal muscle and adipose tissue.
Post-translational Modification
(Microbial infection) Targeted and hydrolyzed by C.botulinum neurotoxin type B (BoNT/B, botB) which probably hydrolyzes the 78-Gln-|-Phe-79 bond and inhibits neurotransmitter release.; (Microbial infection) Targeted and hydrolyzed by C.botulinum neurotoxin type D (BoNT/D, botD) which probably hydrolyzes the 61-Arg-|-Leu-62 bond and inhibits neurotransmitter release. BoNT/D has low catalytic activity on this protein due to its sequence. Note that humans are not known to be infected by C.botulinum type D.; (Microbial infection) Targeted and hydrolyzed by C.botulinum neurotoxin type F (BoNT/F, botF) which probably hydrolyzes the 60-Gln-|-Lys-61 bond and inhibits neurotransmitter release.; (Microbial infection) Targeted and hydrolyzed by C.botulinum neurotoxin type X (BoNT/X) which probably hydrolyzes the 68-Arg-|-Ala-69 bond and inhibits neurotransmitter release. It remains unknown whether BoNT/X is ever produced, or what organisms it targets.
Western blot analysis of VAMP1 on different lysates with Rabbit anti-VAMP1 antibody (ET7109-03) at 1/20,000 dilution.
Lane 1: mouse brain tissue lysate Lane 2: rat brain tissue lysate
Lysates/proteins at 30 µg/Lane. Exposure time: 59 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: ET7109-03, 1/20,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 13 kDa Observed band size: 16 kDa
ICC staining VAMP1 in 293T cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining VAMP1 in Hela cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining VAMP1 in SH-SY-5Y cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded human prostate cancer tissue using anti-VAMP1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse brain tissue using anti-VAMP1 antibody. Counter stained with hematoxylin.
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