Description
Product Usage Information
Western Blotting: 1:1000
Immunoprecipitation: 1:100
Immunofluorescence (Immunocytochemistry): 1:400 - 1:1600
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 12544 .
Protocol
Available protocols: Western Blotting, Immunoprecipitation, Immunofluorescence (Immunocytochemistry)
Specificity / Sensitivity
Puma (E2P7G) Rabbit Monoclonal Antibody recognizes endogenous levels of total Puma protein.
Species Reactivity: Human, Mouse
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gly28 of human Puma protein.
Background
Puma (p53 upregulated modulator of apoptosis) is a "BH3-only" Bcl-2 family member originally identified in differential gene expression studies as a p53-inducible gene (1,2). The "BH3-only" family members include Bad, Bid, Bik, Hrk, Bim, and Noxa, all of which contain a BH3 domain but lack other conserved domains, BH1 and BH2, and generally promote apoptosis by binding to and antagonizing anti-apoptotic Bcl-2 family members through BH3 domain interactions (3). Two BH3-containing proteins are produced from the gene, Puma-α and Puma-β, both of which are induced by p53, bind Bcl-2 and Bcl-xL, localize to the mitochondria, and promote cytochrome c release and apoptosis (1,2). Puma plays a critical role in the p53 tumor suppressor pathway. Targeted disruption of the gene impairs p53-mediated apoptosis and tumor suppression (4-7). Puma knockout mice show defects from multiple apoptotic stimuli, including ionizing irradiation, deregulated c-Myc expression, and cytokine withdrawal (4).
Alternate Names
BBC3; Bcl-2-binding component 3; Bcl-2-binding component 3, isoforms 1/2; BCL2 binding component 3; FLJ42994; JFY-1; JFY1; p53 up-regulated modulator of apoptosis; p53-upregulated modulator of apoptosis; PUMA
