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.

Apoptosis, Apoptotic Markers, Cancer, Cell Biology, Cell Death, Intracellular, Invasion/Microenvironment, Metabolism, Metabolism Processes, Mitochondrial, Mitochondrial Markers, Mitochondrial Metabolism, Pathways and Processes, Signal Transduction

Essential mediator of p53/TP53-dependent and p53/TP53- independent apoptosis. Functions by promoting partial unfolding of BCL2L1 and dissociation of BCL2L1 from p53/TP53. Regulates ER stress-induced neuronal apoptosis. .

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.

Store 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 freeze-thaw cycles.