Caspase Inhibitor Set III - Calbiochem

General Description

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.

Biochem/physiol Actions

Cell permeable: yes

Raw materials

Preparation Products