Anti-PUMA (alpha/beta) / BBC3

0.5mg/ml if reconstituted with 0.2ml sterile DI water. Bcl-2-binding component 3, isoforms 1/2 (BBC3), also called p53 upregulated modulator of apoptosis (PUMA), is a pro-apoptotic member of the Bcl-2 protein family. The gene is located at 19q. The transcript is contained within 4 exons, with the presumptive initiation codon in exon 2. The predicted 193-amino acid PUMA protein shares 91% amino acid identity with the murine sequence. Bcl-2 family members can form hetero- or homodimers, and they act as anti- or pro-apoptotic regulators that are involved in a wide variety of cellular activities. The expression of PUMA is regulated by the tumor suppressor p53, and the protein has been shown to be involved in p53-mediated apoptosis. Additionally, PUMA encodes two BH3 domain-containing proteins, PUMA-alpha and PUMA-beta, that are produced through the use of an alternative first exon and are induced in cells following p53 activation. Furthermore, PUMA couples the nuclear and cytoplasmic proapoptotic functions of p53. Protein function: Essential mediator of p53/TP53-dependent and p53/TP53- independent apoptosis (PubMed:11463391, PubMed:23340338). Promotes partial unfolding of BCL2L1 and dissociation of BCL2L1 from p53/TP53, releasing the bound p53/TP53 to induce apoptosis (PubMed:23340338). Regulates ER stress-induced neuronal apoptosis. [The UniProt Consortium]