PAK5 (E3X7O) Rabbit mAb #62234
- WB
Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Endogenous |
| MW (kDa) | 81 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
Storage
Protocol
Specificity / Sensitivity
PAK5 (E3X7O) Rabbit mAb recognizes endogenous levels of total PAK5 protein. This antibody does not cross-react with PAK4 or PAK6.
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the sequence of human PAK5 protein.
Background
The p21-activated kinase (PAK) family of serine/threonine kinases is engaged in multiple cellular processes, including cytoskeletal reorganization, MAPK signaling, apoptotic signaling, control of phagocyte NADPH oxidase, and growth factor-induced neurite outgrowth (1,2). Several mechanisms that induce PAK activity have been reported. Binding of Rac/Cdc42 to the CRIB (or PBD) domain near the amino terminus of PAK causes autophosphorylation and conformational changes in PAK (1). Phosphorylation of PAK1 at Thr423 by PDK induces activation of PAK1 (3). Several autophosphorylation sites have been identified, including Ser199 and Ser204 of PAK1, and Ser192 and Ser197 of PAK2 (4,5). Because the autophosphorylation sites are located in the amino-terminal inhibitory domain, it has been hypothesized that modification in this region prevents the kinase from reverting to an inactive conformation (6). Research indicates that phosphorylation at Ser144 of PAK1 or Ser139 of PAK3 (located in the kinase inhibitory domain) affects kinase activity (7). Phosphorylation at Ser21 of PAK1 or Ser20 of PAK2 regulates binding with the adaptor protein Nck (8). PAK4, PAK5/7, and PAK6 have lower sequence similarity with PAK1-3 in the amino-terminal regulatory region (9). Phosphorylation at Ser474 of PAK4, a site analogous to Thr423 of PAK1, may play a pivotal role in regulating the activity and function of PAK4 (10). PAK family members are widely expressed, and often overexpressed in human cancer (11,12).
- Knaus, U.G. and Bokoch, G.M. (1998) Int. J. Biochem. Cell Biol. 30, 857-62.
- Daniels, R.H. et al. (1998) EMBO J. 17, 754-64.
- King, C.C. et al. (2000) J. Biol. Chem. 275, 41201-9.
- Manser, E. et al. (1997) Mol. Cell. Biol. 17, 1129-43.
- Gatti, A. et al. (1999) J. Biol. Chem. 274, 8022-8.
- Lei, M. et al. (2000) Cell 102, 387-97.
- Chong, C. et al. (2001) J. Biol. Chem. 276, 17347-53.
- Zhao, Z. et al. (2000) Mol. Cell. Biol. 20, 3906-17.
- Abo, A. et al. (1998) EMBO J. 17, 6527-40.
- Qu, J. et al. (2001) Mol. Cell. Biol. 21, 3523-33.
- Wen, Y.Y. et al. (2014) Expert Opin Ther Targets 18, 807-15.
- Molli, P.R. et al. (2009) Oncogene 28, 2545-55.
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