Catalog # PP1551

PAK6 (Ser-165), phospho-specific Antibody

Rabbit Polyclonal

Application / Dilution

Size 100 μl

Species Reactivity Hu

MW 75 kDa



p21-activated kinase 6 (PAK6) is a member of the PAK family of serine/threonine kinases. These kinases have a highly conserved amino-terminal Cdc42/Rac interactive binding domain and a carboxyl-terminal kinase domain. PAK kinases are implicated in the regulation of a number of cellular processes, including cytoskeleton rearrangement, apoptosis and the MAP kinase signaling pathway. PAK6 interacts with the androgen receptor, a steroid hormone transcription factor involved in male sexual differentiation and development. PAK6 is highly expressed in testis and prostate tissues. Regulation of PAK6 kinase activity occurs through multiple sites of phosphorylation. Activation of PAK6 requires autophosphorylation of Ser-560 and MKK-6 induced phosphorylation of Tyr-566. In addition, p38 MAPK can phosphorylate Ser-165, which increases PAK6 kinase activity. Thus, multiple signaling pathways may regulate the activity of PAK6 through differential phosphorylation.


Kaur, R. et al. (2005) J. Biol. Chem. 280(5) :3323.
Schrantz, N. et al. (2004) J. Biol. Chem. 279(3):1922.
Lee, S.R. et al. (2002) Mol. Endocrin. 16(1):85.

Western blots of human PAK6 recombinant protein phosphorylated by ERK2. The blot was exposed to lambda phosphatase (lanes 2 & 6) then probed with anti-PAK6 (N-terminal) (lanes 1-4) or anti-PAK6 (Ser-165) phospho-specific (lanes 5-8). The antibodies were used in the presence of unrelated (lane 3) and PAK6 (N-terminal) (lane 4) peptide or PAK6 (Ser-165) (lane 7) and unrelated phospho-serine (lane 8) peptides, respectively.

PAK6 (Ser-165) synthetic peptide (coupled to carrier protein) corresponding to amino acids around serine 165 in human PAK6. The sequence used has two amino acid differences compared to rat and mouse PAK6.

*For more information, see UniProt Accession Q9NQU5
Rabbit polyclonal, affinity-purified antibody is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

This antibody was cross-adsorbed to unphosphorylated PAK6 (Ser-165) peptide then affinity purified using phospho-PAK6 (Ser-165) peptide. The antibody detects a 75 kDa* band on SDS-PAGE immunoblots of human PAK6 recombinant protein phosphorylated with ERK2. This reactivity is specifically blocked by pre-incubation with phospho-PAK6 (Ser-165) peptide and also by treatment with lambda phosphatase.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: