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Description
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38 kDa SNAPs (soluble NSF attachment proteins), acting in concert with SNAREs (SNAP receptors) and the N-ethylmaleimide- sensitive fusion protein (NSF) are required for the fusion of transport vesicles to their target membranes in synaptic transmission, intra-Golgi transport, endosome-toendosome fusion and transcytotic vesicles-to-plasma membrane transport. Vesicle-to-target membrane docking (initial contact) occurs when the vesicle SNARE binds to its cognate target membrane SNARE. -SNAP (or -SNAP in brain) then binds to this docking complex and mediates the binding of NSF and thus the formation of a 20S fusion particle. It is thought that, once NSF is bound, ATP hydrolysis by NSF initiates the fusion process. Synonyms: alpha/beta SNAP, mouse anti alpha/beta soluble NSF attachment protein.
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