Pifithrin-α-CAS 63208-82-2-Calbiochem

C₁₆H₁₈N₂OS · xHBr

286.39 (free base basis)

MFCD00417851

A cell-permeable chemical inhibitor of p53. Reversibly inhibits p53-dependent transactivation of p53-responsive genes and reversibly blocks p53-mediated apoptosis. Inhibits p53-dependent growth arrest of human diploid fibroblasts in response to DNA damage but has no effect on p53-deficient fibroblasts. Protects normal tissues from the deleterious side effects of chemotherapy. Has been reported to protect neurons against β-amyloid peptide and glutamate-induced apoptosis.
A reversible inhibitor of p53-dependent transactivation of p53-responsive genes and reversibly blocks p53-mediated apoptosis. Inhibits p53-dependent growth arrest of human diploid fibroblasts in response to DNA damage but has no effect on p53-deficient fibroblasts. Protects mice from lethal genotoxic stress associated with anticancer treatment without promoting tumor formation. Has been reported to protect neurons against β-amyloid and glutamate-induced apoptosis.

Cell permeable: yes
Primary Target
PS3
Product does not compete with ATP.
Reversible: yes

Toxicity: Standard Handling (A)

Following reconstitution, aliquot into cold tubes and freeze (-20°C). Stock solutions in DMSO are stable for 3 months at -20°C. Unstable in aqueous solutions.

Murphy, P.J.M., et al. 2004. J. Biol. Chem.279, 30195.
Culmsee, C., et al. 2001. J. Neurochem.77, 220.
Komarova, E.A., and Gudkov, A.V. 2000. Biochemistry (Mosc.) 65, 41.
Stadler, P., et al. 2000. Strahlenther Onkol. 176, 98.
Ferber, D. 1999. Science 285, 1651.
Jacquemin-Sablon, A. 1999. Bull. Cancer86, 894.
Komarov, P.G., et al. 1999. Science 285, 1733.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

100

≥95% (HPLC)

solid

Calbiochem^®

OK to freeze
protect from light

off-white

DMSO: 100 mg/mL

ambient

−20℃

5, 10 mg in Plastic ampoule
Packaged under inert gas

11 - Combustible Solids

WGK 3