Caspase Inhibitor Set III

A set of eight ready to use cell-permeable, irreversible inhibitors of various caspase-family proteases. Contains 25 µl (2 mM) each of Caspase-1 Inhibitor VI, Z-YVAD-FMK (Cat. No. 218746); Caspase-2 Inhibitor I, Z-VDVAD-FMK (Cat. No. 218744); Caspase-3 Inhibitor II, Z-DEVD-FMK (Cat. No. 264155); Caspase-5 Inhibitor I, Z-WEHD-FMK (Cat. No. 218753); Caspase-6 Inhibitor I, Z-VEID-FMK (Cat. No. 218757); Caspase-8 Inhibitor II, Z-IETD-FMK (Cat. No. 218759); Caspase-9 Inhibitor I, Z-LEHD-FMK (Cat. No. 218761); and Caspase Inhibitor I, Z-VAD-FMK (Cat. No. 627610). Supplied with a data sheet.

Apoptosis is a normal process in development and morphogenesis. Many cells can be activated to undergo apoptosis following the interaction of selected ligands with cell surface receptors. Receptor-mediated apoptosis involves the activation of caspases (cysteine-containing aspartate-specific proteases). A distinctive feature of caspases is the requirement of an aspartic acid residue in the substrate P₁ position.



Caspase inhibitors act by binding to the active site of caspases and form either a reversible or an irreversible linkage. Caspase inhibitor design includes a peptide recognition sequence attached to a functional group such as an aldehyde (CHO), chloromethylketone (CMK), fluoromethylketone (FMK), or fluoroacyloxymethylketone (FAOM). Caspase inhibitors with a CHO group are reversible and those with a CMK, FMK, or FAOM group are irreversible and cell-permeable. FMK exhibits slightly less reactivity than CMK and therefore is more specific for the enzyme being inhibited.

Cell permeable: yes

Primary Target
Caspase-1, caspase-2, caspase-3, caspase-4, caspase-5, caspase-6, caspase-7, caspase-8

Reversible: no

Supplied as 2 mM in DMSO.

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

Toxicity: Irritant (B)