Merck, 524400-5MG, Phorbol-12-myristate-13-acetate

General description
Most commonly-used phorbol ester. Extremely potent mouse skin tumor promoter. Activates protein kinase C in vivo and in vitro, even at nM concentrations. Promotes the expression of inducible NOS in cultured hepatocytes. Activates Ca²⁺-ATPase and potentiates forskolin-induced cAMP formation. Inhibits apoptosis induced by the Fas antigen, but induces apoptosis in HL-60 promyelocytic leukemia cells. Its binding is reversible. Also available as a 10 mM solution in DMSO (Cat. No. 500582 ).
Biochem/physiol Actions
Cell permeable: no
Primary Target
Protein Kinase C
Product does not compete with ATP.
Reversible: yes
Packaging
Packaged under inert gas
Preparation Note
Following reconstitution, aliquot and freeze (-20°C). Anhydrous DMSO stock solutions are stable for up to 6 months at -20°C. With frequent use, the DMSO stock solutions may accumulate water. The presence of water in the stock solution will accelerate the decomposition of the product, resulting in significant loss of activity in 2-3 months.
Further dilute with aqueous buffers just prior to use.
Other Notes
Powell, D.J., et al. 2003. Mol. Cell Biol.23, 7794.
Tepper, C.G., et al. 1995. Proc. Natl. Acad. Sci. USA92, 8443.
Oishi, K., and Yamaguchi, M. 1994. J. Cell. Biochem. 55, 168.
Macfarlane, D.E., and O’Donnell, P.S. 1993. Leukemia7, 1846.
Ghandi, V.C. and Jones, D.J., 1992. Neuropharmacol.31, 1101.
Hortelano, S., et al. 1992. J. Biol. Chem. 267, 24937.
Kontny, E., et al. 1992. Eur. J. Pharmacol.227, 333.
Zanaboni, P.B., et al. 1992. J. Appl. Physiol.73, 2011.
Saltis, J., et al. 1991. J. Biol. Chem.266, 261.
Beguinot, L., et al. 1985. Proc. Natl. Acad. Sci. USA82, 2774.
Perchellet, J. 1985. Carcinogenesis6, 567.
Nishizuka, Y. 1984. Science255, 1365.
Mastro, A. 1982. Lymphokines6, 263.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Harmful (C)