CASP10A gene on chromosome 2q33-q34 that encodes a protein belonging to the cysteine-aspartic acid protease (caspase) family which, once activated by proteolytic processing, plays a central role in the execution-phase of cell apoptosis, as well as various stages of embryological development. CASP10 is an initiator-type caspase which is activated by, and interacts with, upstream adaptor molecules through CARD and DED protein–protein interaction domains. It cleaves and activates caspase-3, -4, -6, -7, -8 and -9, is recruited to Fas- and TNFR-1 receptors in a FADD-dependent manner, and may participate in the granzyme B apoptotic pathways. It is expressed in most tissues. CASP10 is also a less preferred gene symbol for what is now designated PPIG, see there.
Defects in CASP10 have been linked to gastric cancer, non-Hodgkin lymphoma and autoimmune lymphoproliferative syndrome type 2A.