Cell Signaling Technology

Product Pathways - Apoptosis / Autophagy

Phospho-Bad (Ser136) (185D10) Rabbit mAb #5286

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP H M Mk Transfected Only 23 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human  M=Mouse  Mk=Monkey
Species cross-reactivity is determined by Western blot.

Specificity / Sensitivity

Phospho-Bad (Ser136) (185D10) Rabbit mAb detects immunoprecipitated or transfected levels of Bad protein only when phosphorylated at Ser136.

Source / Purification

Monoclonal antibody is produced by immunizing rabbit with a synthetic phosphopeptide (KLH-coupled) corresponding to residues surrounding Ser136 of mouse Bad.

Western Blotting

Western Blotting

Western blot analysis of extracts from control 293, GST-Bad transfected 293 and COS cells, untreated or TPA-treated, using Phospho-Bad (Ser136) (185D10) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of immunoprecipitates from COS cells, untreated or treated with TPA, using Phospho-Bad (Ser136) (185D10) Rabbit mAb.

Background

Bad is a proapoptotic member of the Bcl-2 family that promotes cell death by displacing Bax from binding to Bcl-2 and Bcl-xL (1,2). Survival factors, such as IL-3, inhibit the apoptotic activity of Bad by activating intracellular signaling pathways that result in the phosphorylation of Bad at Ser112 and Ser136 (2). Phosphorylation at these sites promotes binding of Bad to 14-3-3 proteins to prevent an association between Bad with Bcl-2 and Bcl-xl (2). Akt phosphorylates Bad at Ser136 to promote cell survival (3,4). Bad is phosphorylated at Ser112 both in vivo and in vitro by p90RSK (5,6) and mitochondria-anchored PKA (7). Phosphorylation of Ser155 in the BH3 domain by PKA plays a critical role in blocking the dimerization of Bad and Bcl-xL (8-10).

  1. Yang, E. et al. (1995) Cell 80, 285-291.
  2. Zha, J. et al. (1996) Cell 87, 619-628.
  3. Datta, S.R. et al. (1997) Cell 91, 231-241.
  4. Peso, L. et al. (1997) Science 278, 687-689.
  5. Bonni, A. et al. (1999) Science 286, 1358-1362.
  6. Tan, Y. et al. (1999) J. Biol. Chem. 274, 34859-34867.
  7. Harada, H. et al. (1999) Mol. Cell 3, 413-422.
  8. Tan, Y. et al. (2000) J. Biol. Chem. 275, 25865-25869.
  9. Lizcano, J. et al. (2000) Biochem. J. 349, 547-557.
  10. Datta, S. et al. (2000) Mol. Cell 6, 41-51.

Application References

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Companion Products

Rabbit Monoclonals Produced Using Epitomics® Technology, U.S. Patent No. 5,675,063.

This product is for in vitro research use only and is not intended for use in humans or animals. This product is not intended for use as therapeutic or in diagnostic procedures.

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