Apoptotic caspases are featured in green hues, inflammatory caspases in red, and the remaining four human members of peptidase clan CD are in blue. Caspases-2 and −14 are uncolored and unassigned, as they have primary roles unassociated with apoptosis or inflammation. Pseudoproteases, FLIP and caspase-12, are proteins with the characteristic fold but mutations in their catalytic machinery render them proteolytically incompetent.