Phospho-PAK1/2/3 (Thr423) Polyclonal Antibody

The p21 activated kinases (PAK) are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. The PAK proteins are a family of serine/threonine kinases that serve as targets for the small GTP binding proteins, CDC42 and RAC1, and have been implicated in a wide range of biological activities. The protein encoded by this gene is activated by proteolytic cleavage during caspase-mediated apoptosis, and may play a role in regulating the apoptotic events in the dying cell.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 + PAK3 phospho T423; Alpha PAK; Beta PAK; Gamma PAK; Oligophrenin 3; OPHN3; p21 activated kinase 1; p21 Activated Kinase 1 + 2 + 3; p21 activated kinase 2 ; p21 activated kinase 3; P65 PAK; PAK1; PAK2; PAK3; PAK3beta; PAK65; PAKalpha; PAKgamma; S6/H4 kinase; Serine/threonine protein kinase PAK 1; Serine/threonine protein kinase PAK 2; Serine/threonine protein kinase PAK 3; Serine/threonine protein kinase PAK1; Serine/threonine protein kinase PAK2; Serine/threonine protein kinase PAK3; PAK1_HUMAN; PAK2_HUMAN; PAK3_HUMAN.