p21-activated kinase 1; PAK-1; p65-PAK; Alpha-PAK;
Peptide sequence around phosphorylation site of threonine 423 /402/421 (R-S-T(p)-M-V) derived from Human PAK1/PAK2/PAK3.
Human Mouse Rat
IHC IF Recommended dilution: Predicted MW: 61-67 (PAK2) 68-74 (PAK1/3)kd, Immunohistochemistry: 1:50~1:100, Immunofluorescence: 1:100~1:200
Background / Function
The activated kinase acts on a variety of targets. Likely to be the GTPase effector that links the Rho-related GTPases to the JNK MAP kinase pathway. Activated by CDC42 and RAC1. Involved in dissolution of stress fibers and reorganization of focal complexes. Involved in regulation of microtubule biogenesis through phosphorylation of TBCB. Activity is inhibited in cells undergoing apoptosis, potentially due to binding of CDC2L1 and CDC2L2. Parsons M, et al. (2005) Mol Cell Biol ; 25:1680-1695. Jung JH, et al. (2005) J Biol Chem; 280:40025-40031. Lampugnani MG, et al. (2002) Mol Biol Cell ; 13: 1175-1189 Wang RA, et al. (2002) EMBO J; 21: 5437 – 5447.
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze.
Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.