BIRC7 Recombinant Protein

Source : Escherichia Coli. BIRC7 Human Recombinant fused to N-terminal His-Tag produced in E.Coli is a single, non-glycosylated polypeptide chain containing 318 amino acids and having a molecular mass of 34 kDa. BIRC7 is a part of the inhibitor of apoptosis protein (IAP) family and contains a single copy of a baculovirus IAP repeat (BIR) as well as a RING-type zinc finger domain. The BIR domain is necessary for inhibitory activity & cooperates with caspases, while the RING finger domain sometimes increases anti-apoptotic activity but doesn't inhibit apoptosis by itself. 2 transcript variants encoding diverse isoforms have been found for this gene. The 2 isoforms have dissimilar antiapoptotic characteristics, with isoform a protecting cells from apoptosis induced by staurosporine and isoform b defending cells from apoptosis induced by etoposide. BIRC7 has direct contact with several caspases together with caspase-3, caspase-7, & caspase -9. BIRC7 inhibits the activation of caspase-9 induced by Apaf-1, cytochrome c, and dATP.