Cell Signaling Technology

Product Pathways - Akt Signaling

Phospho-Tuberin/TSC2 (Thr1462) (5B12) Rabbit mAb #3617

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP H M R Endogenous 200 Rabbit IgG

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

Protocols

Specificity / Sensitivity

Phospho-Tuberin/TSC2 (Thr1462) (5B12) Rabbit mAb detects endogenous levels of tuberin only when phosphorylated at threonine 1462.

Source / Purification

Monoclonal antibodies are produced by immunizing rabbits with a synthetic phospho-peptide (KLH-coupled) corresponding to residues surrounding Thr1462 of human tuberin.

Western Blotting

Western Blotting

Western blot analysis of extracts from l phosphatase-treated or PDGF treated NIH/3T3 cells, using Phospho- Tuberin/TSC2 (Thr1462) (5B12) Rabbit mAb (upper) or Tuberin Antibody (lower).

Background

Tuberin, a product of the tumor suppressor gene TSC2, is important in regulating cell proliferation and tumor development (1). Mutations in either TSC1 or TSC2 are responsible for tuberous sclerosis complex (TSC), an autosomal dominant disorder (2). Tuberin is directly phosphorylated at Thr1462 by Akt/PKB (3). Phosphorylation at Thr1462 and Tyr1571 regulates tuberin-hamartin complexes and tuberin activity (3-5). In addition, tuberin inhibits the mammalian target of rapamycin (mTOR), resulting in inhibition of p70 S6 kinase and activation of eukaryotic initiation factor 4E binding protein 1 (4E-BP1, an inhibitor of translation initiation) and thus, inhibits translation (3,6,7).

  1. Soucek, T. et al. (1998) Proc. Natl. Acad. Sci. USA 95, 15653-15658.
  2. Sparagana, S.P. and Roach, E.S. (2000) Curr. Opin. Neurol. 13, 115-119.
  3. Manning, B. D. et al. (2002) Mol. Cell 10, 151-161.
  4. Aicher, L. D. et al. (2001) J. Biol. Chem. 276, 21017-21021.
  5. Dan, H. C. et al. (2002) J. Biol. Chem. 277, 35364-35370.
  6. Goncharova, E.A. et al. (2002) J. Biol. Chem. 277, 30958-30967.
  7. Inoki, K. et al. (2002) Nat. Cell Biol. 4, 648-657.

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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