Revision 1

#4750Store at -20C

1 Kit

(8 x 20 microliters)

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Quantity Mol. Wt Isotype/Source
Phospho-PAK1 (Ser144)/PAK2 (Ser141) Antibody 2606 20 µl 61 to 67 (PAK2), 68 to 74 (PAK1/3) kDa Rabbit 
Phospho-PAK1 (Ser199/204)/PAK2 (Ser192/197) Antibody 2605 20 µl 61 to 67 (PAK2), 68 to 74 (PAK1/3) kDa Rabbit 
Phospho-PAK1 (Thr423)/PAK2 (Thr402) Antibody 2601 20 µl 61 to 67 (PAK2), 68 to 74 (PAK1/3) kDa Rabbit 
Phospho-PAK2 (Ser20) Antibody 2607 20 µl 61 to 67 kDa Rabbit 
PAK1 Antibody 2602 20 µl 68 kDa Rabbit 
PAK2 (C17A10) Rabbit mAb 2615 20 µl 61 kDa Rabbit IgG
PAK3 Antibody 2609 20 µl 65 kDa Rabbit 
PAK1/2/3 Antibody 2604 20 µl 61 (PAK2), 68 (PAK1/3) kDa Rabbit 
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

The PAK antibody sampler kit provides and economical means to evaluate the activation status of PAK1, 2, and 3. This kit includes enough primary and secondary antibodies to perform two western blots with each antibody.

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

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 serines 199 and 204 of PAK1 and serines 192 and 197 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 of Ser144 of PAK1 or Ser139 of PAK3 (located in the kinase inhibitory domain) affects kinase activity (7). Phosphorylation of Ser21 of PAK1 or Ser20 of PAK2 regulates binding with the adaptor protein Nck (8).

  1. Knaus, U.G. and Bokoch, G.M. (1998) Int J Biochem Cell Biol 30, 857-62.
  2. Daniels, R.H. et al. (1998) EMBO J 17, 754-64.
  3. King, C.C. et al. (2000) J Biol Chem 275, 41201-9.
  4. Manser, E. et al. (1997) Mol Cell Biol 17, 1129-43.
  5. Gatti, A. et al. (1999) J Biol Chem 274, 8022-8.
  6. Lei, M. et al. (2000) Cell 102, 387-97.
  7. Chong, C. et al. (2001) J Biol Chem 276, 17347-53.
  8. Zhao, Z.S. et al. (2000) Mol Cell Biol 20, 3906-17.

Background References

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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