Technical Data
Paxillin, phosphorylated, Ser178 (PXN)
Paxillin, a focal adhesion protein, is involved in focal adhesion formation during cell adhesion and migration. Paxillin contains LD motifs, LIM domains, and SH3-/SH2-binding domains that participate in a variety of proteinprotein interactions with kinases, GTPase-activating proteins, and cytoskeletal proteins. Phosphorylation of paxillin occurs at both tyrosine and serine sites. Serine phosphorylation of paxillin occurs in response to growthfactor activation and fibronectins. Both JNK1 and cdc2 kinases can phosphorylate serine 178 in paxillin. The mutant form of paxillin (S178A) decreases the migration of keratocytes and epithelial cells. Thus, phosphorylation paxillin at serine 178 may be important during cell migration.

Suitable for use in ELISA and Western Blot. Other applications not tested.

Recommended Dilution:
Western Blot: 1:500
ELISA: 1:2000
Optimal dilutions to be determined by the researcher.

Storage and Stability:
For long-term storage, aliquot and store at -20C. Aliquots are stable for at least 12 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
PabIgGAffinity Purified
100ul4C (-20C Glycerol)Blue IceHumanRabbit
Phospho-Paxillin (Ser-178) synthetic peptide (coupled to carrier protein) corresponding to amino acid residues around serine 178 of human paxillin.
Purified by immunoaffinity chromatography.
Supplied as a liquid in PBS, 50% glycerol, 1mg/ml BSA, and 0.05% sodium azide.
Recognizes a 68kD protein corresponding to the molecular mass of phosphorylated paxillin on SDSPAGE immunoblots of EGF treated A431 cells, but not in A431 control cells. Similar results were seen in calyculin A treated human A431 and aortic endothelial cells. Species sequence homology: mouse and rat.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
2003 Woodrow, M.A. Exp. Cell. Res. 287(2):325-338.
2003 Huang, C. et al. Nature 424:219-223.
2004 Huang, C. et al. Cell Cycle 3(1):4-6.