cysteine-type endopeptidase activity obsolete cysteine-type endopeptidase activity involved in execution phase of apoptosis https://github.com/geneontology/go-ontology/issues/28468 true pr Examples of gene products that may be annotated to this term include CASP3, CASP6 and CASP7, also called effector (or executioner) caspases. The reason for obsoletion is that this term represents a GO-CAM model. GO:0097200 OBSOLETE. Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile, and contributing to the execution phase of apoptosis. molecular_function 2011-12-12T01:46:06Z effector caspase activity executioner caspase activity