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Product Description

The PhosphoPlus (R) c-Jun (Ser63) and c-Jun (Ser73) Antibody Kit provides reagents and controls for rapid analysis of c-Jun phosphorylation status.


Specificity / Sensitivity

Phospho-c-Jun (Ser63) (54B3) Rabbit mAb detects endogenous levels of c-Jun only when phosphorylated at Ser63. Phospho-c-Jun (Ser73) Antibody detects endogenous levels of c-Jun only when phosphorylated at Ser73. This antibody also recognizes phosphorylation of JunD at Ser100. c-Jun (60A8) Rabbit mAb detects endogenous levels of total c-Jun protein.


Source / Purification

Phospho-specific polyclonal antibodies are produced by immunizing rabbits with a synthetic phosphopeptide corresponding to residues surrounding Ser63 or Ser73 of human c-Jun, and purified by protein A and peptide affinity chromatography. Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to the amino-terminal of human c-Jun.

c-Jun is a member of the Jun family containing c-Jun, JunB, and JunD, and is a component of the transcription factor activator protein-1 (AP-1). AP-1 is composed of dimers of Fos, Jun, and ATF family members and binds to and activates transcription at TRE/AP-1 elements (reviewed in 1). Extracellular signals including growth factors, chemokines, and stress activate AP-1-dependent transcription. The transcriptional activity of c-Jun is regulated by phosphorylation at Ser63 and Ser73 through SAPK/JNK (reviewed in 2). Knock-out studies in mice have shown that c-Jun is essential for embryogenesis (3), and subsequent studies have demonstrated roles for c-Jun in various tissues and developmental processes including axon regeneration (4), liver regeneration (5), and T cell development (6). AP-1 regulated genes exert diverse biological functions including cell proliferation, differentiation, and apoptosis, as well as transformation, invasion and metastasis, depending on cell type and context (7-9). Other target genes regulate survival, as well as hypoxia and angiogenesis (8,10). Research studies have implicated c-Jun as a promising therapeutic target for cancer, vascular remodeling, acute inflammation, and rheumatoid arthritis (11,12).


1.  Jochum, W. et al. (2001) Oncogene 20, 2401-12.

2.  Davis, R.J. (2000) Cell 103, 239-52.

3.  Hilberg, F. et al. (1993) Nature 365, 179-81.

4.  Raivich, G. et al. (2004) Neuron 43, 57-67.

5.  Behrens, A. et al. (2002) EMBO J 21, 1782-90.

6.  Riera-Sans, L. and Behrens, A. (2007) J Immunol 178, 5690-700.

7.  Leppä, S. and Bohmann, D. (1999) Oncogene 18, 6158-62.

8.  Shaulian, E. and Karin, M. (2002) Nat Cell Biol 4, E131-6.

9.  Weiss, C. and Bohmann, D. (2004) Cell Cycle 3, 111-3.

10.  Karamouzis, M.V. et al. (2007) Mol Cancer Res 5, 109-20.

11.  Kim, S. and Iwao, H. (2003) J Pharmacol Sci 91, 177-81.

12.  Dass, C.R. and Choong, P.F. (2008) Pharmazie 63, 411-4.


Entrez-Gene Id 3725
Swiss-Prot Acc. P05412


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
PhosphoPlus is a trademark of Cell Signaling Technology, Inc.
DRAQ5 is a registered trademark of Biostatus Limited.
LumiGLO is a registered trademark of Kirkegaard & Perry Laboratories.
U.S. Patent No. 5,675,063.

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PhosphoPlus® c-Jun (Ser63) and c-Jun (Ser73) Antibody Kit