The synaptosomal-associated protein (SNAP-25) is an essential component of the core complex that mediates presynaptic vesicle trafficking. Thus, SNAP-25 is directly involved in the release of neurotransmitters and this protein exists as two alternative isoforms, SNAP25A and SNAP25B which differ by 9 amino acids in central portion of these proteins. Recombinant SNAP25B protein was expressed in E. coli and purified by using conventional chromatography techniques. Alternative Names: MGC139754 protein, SNP 25 protein, SNAP25, SNAP-25 protein, Super protein protein, FLJ23079 protein, SNAP protein, Synaptosomal associated protein protein, MGC105414 protein, RIC-4 protein, Synaptosomal-associated protein 25 isoform SNAP25B protein, SNAP25 protein, SNAP-25B protein, SNAP-25, Synaptosomal associated protein 25kDa., Synaptosomal associated protein 25 protein, SNAP 25 protein, SNAP 25, RIC4 protein, SNP25 protein, HGNC:11132 protein, dJ1068F16.2 protein, Resistance to inhibitors of cholinesterase 4 homolog protein, RIC 4 protein, SNAP-25 protein, bA416N4.2 protein, Synaptosomal-associated protein 25 isoform SNAP25B SUP protein, SEC9 protein, Bdr protein, Synaptosomal associated 25 kDa protein protein, sp protein, SEC9 protein, SNAP 25 protein