Caspase-3 Inhibitor I, Cell-Permeable

Cell permeable: yes

Primary Target
caspase-3

Product does not compete with ATP.

Reversible: yes

Target IC₅₀: 200 pM inhibiting PARP cleavage in cultured human osteosarcoma cell extracts

Toxicity: Irritant (B)

A cell-permeable inhibitor of caspase-3. The C-terminal DEVD-CHO sequence of this peptide is a highly specific, potent, and reversible inhibitor of caspase-3 (K_i<1 nM) that has also been shown to strongly inhibit PARP cleavage in cultured human osteosarcoma cell extracts (IC₅₀ = 200 pM). The N-terminal sequence (residues 1-16) corresponds to the hydrophobic region (h-region) of the signal peptide of Kaposi fibroblast growth factor (K-FGF) and confers cell-permeability to the peptide.

Ac-Ala-Ala-Val-Ala-Leu-Leu-Pro-Ala-Val-Leu-Leu-Ala-Leu-Leu-Ala-Pro-Asp-Glu-Val-Asp-CHO

Lin, Y.-Z., et al. 1996. J. Biol. Chem. 271, 5305.
Nicholson, D.W. 1996. Nature Biotechnol. 14, 297.
Schlegel, J., et al. 1996. J. Biol. Chem.271, 1841.
Lin, Y.-Z., et al. 1995. J. Biol. Chem.270, 14255.
Nicholson, D.W., et al. 1995. Nature 376, 37.
Tewari, M., et al. 1995. Cell 81, 801.
Lazebnik, Y.A., et al. 1994. Nature371, 346.

Packaged under inert gas

Following initial thaw, aliquot, purge with inert gas, and freeze (-20°C).

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

A 5 mM (1 mg/100 µl) solution of Caspase-3 Inhibitor I, Cell-permeable (Cat. No. 235423 ) in DMSO.