– Plays a role in the control of regulated secretion in neural and endocrine cells, enhancing selectively low-frequency neurotransmission. Positively regulates vesicle fusion by maintaining the readily releasable pool of secretory vesicles. SV2A Protein, Bovine, Recombinant (His & Myc) is expressed in HEK293 mammalian cells with N-10xHis and C-Myc tag. The predicted molecular weight is 22.8 kDa and the accession number is Q29397.