Phospho-PAK1 (Ser199 + Ser204) + PAK2 (Ser192 + Ser197) Polyclonal Antibody

In mammals, there are several identified isoforms of p21 Activated Protein Kinases or PAKs: PAK1 and PAK3 are mostly brain specific, while PAK2 is expressed ubiquitously. Mutations of the gene coding for PAK3 are associated with X linked mental retardation and PAK3 is a key regulator of synapse formation and plasticity in the hippocampus. PAK3 is thought to play a key role in regulation of cell shape and motility as well as cell death. P21-activated kinase (PAK) is actually a family of serine/threonine protein kinases, members of which are activated by small molecular weight GTPases. The three most common isoforms are PAK 1, PAK 2, and PAK 3 (also known as alpha PAK, gamma PAK, and beta PAK, respectively) . These kinases contain numerous regulatory elements that trigger diverse signaling processes such as those initiated by activated GTPases, interaction with Src homology 3 (SH3) domains, and caspase mediated proteolytic cleavage. Autophosphorylation of serine 141 (serine 144 for PAK 1 and serine 139 PAK 3), catalyzed by Cdc42, is required for activation of PAK.

PAK1 + PAK2 phospho S199 + S204; PAK2 phospho S192 + S197; PAKalpha; serine/threonine-protein kinase PAK 1; p21 activated kinase 1; PAK alpha; Paka; PAKalpha; Protein kinase MUK2; STE20 homolog yeast; Alpha PAK; p21/Cdc42/Rac1 activated kinase 1; CB422; EC 2.7.11.1; Gamma PAK; hPAK65; Kinase; p21 CDKN1A-activated kinase 2a; p21 activated kinase 2; p21 protein Cdc42/Rac-activated kinase 2; p21 protein Cdc42 Rac activated kinase 2; p21-activated kinase, 65-KD; p21-activated protein kinase I; p21CDKN1A activated kinase 2; p58; p65PAK; PAK 2; PAK65; PAKgamma; S6 H4 kinase; Serine threonine protein kinase PAK 2; Serine/threonine-protein kinase PAK 3; p21-activated kinase 3; PAK-3; Beta-PAK; PAK1_HUMAN; PAK2_HUMAN.