Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp-|-Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop- helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin. Triggers cell adhesion in sympathetic neurons through RET cleavage. Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 17 kDa (p17) and a 12 kDa (p12) subunit. Interacts with BIRC6/bruce. Highly expressed in lung, spleen, heart, liver and kidney. Moderate levels in brain and skeletal muscle, and low in testis. Also found in many cell lines, highest expression in cells of the immune system. Inhibited by isatin sulfonamides. Belongs to the peptidase C14A family. Note: This description may include information from UniProtKB.
Protein type: EC 220.127.116.11; Protease; Motility/polarity/chemotaxis; Apoptosis; EC 3.4.22.-
Molecular Function: peptidase activity; cyclin-dependent protein kinase inhibitor activity; protein binding; phospholipase A2 activator activity; protease binding; hydrolase activity; cysteine-type endopeptidase activity; death receptor binding; protein complex binding; aspartic-type endopeptidase activity; cysteine-type peptidase activity
Biological Process: positive regulation of catalytic activity; apoptosis; positive regulation of apoptosis; negative regulation of activated T cell proliferation; heart development; negative regulation of B cell proliferation; proteolysis; negative regulation of cell cycle; neuron differentiation; sensory perception of sound; learning and/or memory; B cell homeostasis; positive regulation of neuron apoptosis; response to wounding; response to glucose stimulus; erythrocyte differentiation; T cell homeostasis; response to UV; release of cytochrome c from mitochondria; cell fate commitment; negative regulation of cyclin-dependent protein kinase activity; keratinocyte differentiation; neuron apoptosis; induction of apoptosis via death domain receptors; response to hydrogen peroxide; protein processing; response to DNA damage stimulus; induction of apoptosis by oxidative stress; negative regulation of apoptosis
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.