Anti-PUMA/BBC3 Antibody Picoband®

The p53 upregulated modulator of apoptosis, or PUMA, is a pro-apoptotic member of the Bcl-2 protein family. The PUMA gene is located at 19q. PUMA 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 PUMA has been shown to be involved in p53-mediated apoptosis. Additionally, PUMA encodes 2 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.

A synthetic peptide corresponding to a sequence at the N-terminus of human PUMA/BBC3, which shares 95.7% amino acid (aa) sequence identity with mouse and rat BBC3.

1. Nakano K, Vousden KH (March 2001) . PUMA, a novel proapoptotic gene, is induced by p53. Mol. Cell 7 (3) : 683–94. 2. Han J, Flemington C, Houghton AB, Gu Z, Zambetti GP, Lutz RJ, Zhu L, Chittenden T (September 2001) . Expression of bbc3, a pro-apoptotic BH3-only gene, is regulated by diverse cell death and survival signals. Proc. Natl. Acad. Sci. U.S.A. 98 (20) : 11318–23. 3. Yu, J.; Zhang, L.; Hwang, P. M.; Kinzler, K. W.; Vogelstein, B. : PUMA induces the rapid apoptosis of colorectal cancer cells. Molec. Cell 7: 673-682, 2001. 4. Nakano, K.; Vousden, K. H. : PUMA, a novel proapoptotic gene, is induced by p53. Molec. Cell 7: 683-694, 2001. 5. Chipuk, J. E.; Bouchier-Hayes, L.; Kuwana, T.; Newmeyer, D. D.; Green, D. R. : PUMA couples the nuclear and cytoplasmic proapoptotic function of p53. Science 309: 1732-1735, 2005.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.