a protein kinase of the STE20 family. Proteolytically activated by caspase during apoptosis. Activated by apoptotic signals as well as other stress conditions. Full activation requires both phosphorylation and caspase-mediated cleavage. Phosphorylation at serine 327 of Mst1, which is close to the caspase-3 recognition site, inhibits caspase-mediated cleavage. Note: This description may include information from UniProtKB.
Protein type: Protein kinase, STE; EC 126.96.36.199; Autophagy; Kinase, protein; Protein kinase, Ser/Thr (non-receptor); STE group; STE20 family; MST subfamily
Cellular Component: cytoplasm; cytosol; nucleus
Molecular Function: protein dimerization activity; protein serine/threonine kinase activator activity; identical protein binding; protein serine/threonine kinase activity; protein binding; protein homodimerization activity; magnesium ion binding; transcription factor binding; ATP binding; receptor signaling protein serine/threonine kinase activity
Biological Process: central nervous system development; positive regulation of apoptosis; apoptosis; protein amino acid autophosphorylation; cell morphogenesis; signal transduction; negative regulation of organ growth; protein amino acid phosphorylation; patterning of blood vessels; keratinocyte differentiation; negative regulation of cell proliferation; peptidyl-serine phosphorylation; neural tube formation
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.