Product Pathways - Motif Antibodies

Phospho-MAPK/CDK Substrates (PXSP or SPXR/K) (34B2) Rabbit mAb #2325

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Applications	Reactivity	Source	Isotype
W IP IHC-P E-P	All	Rabbit	IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  E-P=ELISA (Peptide)
Reactivity Key: All=All species expected

Specificity / Sensitivity

Phospho-MAPK/CDK Substrates (PXS*P or S*PXR/K) (34B2) Rabbit mAb detects phospho-serine in a PXS*P or S*PXR/K motif, as well as a PXS*PXR/K motif. The antibody is phospho-specific, and does not react with phospho-threonine- or phospho-tyrosine-containing peptides/proteins. (U.S. Patent No's.: 6,441,140; 6,982,318; 7,259,022; 7,344,714; U.S.S.N. 11,484,485; and all foreign equivalents.)

Source / Purification

Monoclonal antibody is produced by immunizing rabbits with synthetic phospho-MAPK/CDK substrate peptides (KLH-coupled).

Background

The MAPK and CDK families of serine/threonine protein kinases play important roles in proliferation and cell cycle control. These kinases phosphorylate threonine or serine followed by a proline residue (1-3). MAPK phosphorylates substrates with the concensus sequence PX(S/T)P, and CDKs phosphorylate substrates containing the concensus sequence (S/T)PXK/R. CST has developed antibodies that bind to phospho-threonine followed by proline, motifs PXS*/T*P and/or S*PXK/R, for use in the study and discovery of new MAPK and CDK substrates (4,5).

1. Cross, T.G. et al. (2000) Exp Cell Res 256, 34-41.
2. Reynolds, C.H. et al. (2000) J Neurochem 74, 1587-95.
3. Seger, R. and Krebs, E.G. (1995) FASEB J 9, 726-35.
4. Holmes, J.K. and Solomon, M.J. (1996) J Biol Chem 271, 25240-6.
5. Songyang, Z. et al. (1996) Mol Cell Biol 16, 6486-93.

Application References

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Rabbit Monoclonals Produced Using Technology from Epitomics, Inc. Under U.S. patent No. 5,675,063.License/Use Restrictions: Use of CST Motif Antibodies within certain methods (e.g., U.S. Patent No.'s 7,198,896 & 7,300,753) may require a license from CST. For information regarding academic licensing terms please have your technology transfer office contact CST Legal Department at CST_ip@cellsignal.com. For information regarding commerical licensing terms please contact CST Business Development at cbunker@cellsignal.com.