a protein kinase of the STE20 family that regulates cell motility and morphology. Critical RhoGTPase effector that regulates cytoskeleton reorganization, the JNK MAPK pathway, and nuclear signaling. Binding of Rac/cdc42 to the PBD of PAK1 causes autophosphorylation and conformational change. Phosphorylated and activated by PDK. Note: This description may include information from UniProtKB.
Protein type: EC 126.96.36.199; Kinase, protein; PAKA subfamily; Protein kinase, STE; Protein kinase, Ser/Thr (non-receptor); STE group; STE20 family
Molecular Function: collagen binding; protein binding; protein kinase activity; protein kinase binding; protein serine/threonine kinase activity; Rac GTPase binding
Biological Process: actin cytoskeleton organization and biogenesis; actin cytoskeleton reorganization; activation of protein kinase activity; amygdala development; branching morphogenesis of a tube; cell migration; cellular response to insulin stimulus; dendrite development; establishment of cell polarity; hepatocyte growth factor receptor signaling pathway; neurite morphogenesis; neuromuscular junction development; positive regulation of axon extension; positive regulation of cell migration; positive regulation of cell proliferation; positive regulation of estrogen receptor signaling pathway; positive regulation of JNK activity; positive regulation of microtubule polymerization; positive regulation of peptidyl-serine phosphorylation; positive regulation of protein amino acid phosphorylation; positive regulation of stress fiber formation; protein amino acid autophosphorylation; protein amino acid phosphorylation; receptor clustering; regulation of actin cytoskeleton organization and biogenesis; regulation of apoptosis; regulation of axonogenesis; regulation of gene expression; regulation of MAPKKK cascade; regulation of mitotic cell cycle; response to hypoxia; response to organic substance; Rho protein signal transduction; stress-activated protein kinase signaling pathway; wound healing