SNARE complex protein (SNARE)

SNARE complex proteins are a family of membrane-associated proteins that mediate the fusion of synaptic vesicles with the presynaptic membrane at the neuromuscular junction, enabling neurotransmitter (acetylcholine) release and subsequent muscle contraction[3][4][5][6][7]. The core neuronal SNARE complex comprises synaptobrevin (on vesicle), syntaxin, and SNAP-25 (on plasma membrane), forming a four-helix bundle that brings the vesicle and target membranes together to permit fusion and exocytosis[4][5][6][7]. SNARE dysfunction leads to severe neuromuscular disease and is targeted by toxins such as botulinum and tetanus to induce paralysis[7]. SNARE proteins in this context are not a single molecule but a required multi-protein machinery essential for normal nervous system function and also a validated therapeutic target for certain neurotoxins[3][7].

Other names

Soluble NSF attachment protein receptorv-SNARE (vesicle SNARE)t-SNARE (target SNARE)R-SNAREQ-SNARESNAREpin (core complex)syntaxinsynaptobrevinSNAP-25

Inhibition of neurotransmitter release via cleavage of specific SNARE proteins (by neurotoxins); potential for small molecule inhibitors or modulators (still largely experimental)