Cell Signaling Technology

Product Pathways - PI3K / Akt Signaling

Tuberin/TSC2 (28A7) Rabbit mAb #3635

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

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Specificity / Sensitivity

Tuberin/TSC2 (28A7) Rabbit mAb detects endogenous levels of total tuberin.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide from the amino terminus of human tuberin.

Western Blotting

Western Blotting

Western blot analysis of extracts from control SH-SY5Y, differentiated SH-SY5Y, PC3 and LNCaP cells, using Tuberin/TSC2 (28A7) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-), SignalSilence® Tuberin/TSC2 siRNA I (+) or SignalSilence® Tuberin/TSC2 siRNA II (+), using Tuberin/TSC2 (28A7) Rabbit mAb and α-Tubulin (11H10) Rabbit mAb #2125. Tuberin/TSC2 (28A7) Rabbit mAb confirms silencing of Tuberin/TSC2 expression and α-Tubulin (11H10) Rabbit mAb is used to control for loading and specificity of Tuberin/TSC2 siRNA.

Background

Tuberin is a product of the TSC2 tumor suppressor gene and an important regulator of cell proliferation and tumor development (1). Mutations in either TSC2 or the related TSC1 (hamartin) gene cause tuberous sclerosis complex (TSC), an autosomal dominant disorder characterized by development of multiple, widespread non-malignant tumors (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), which promotes inhibition of p70 S6 kinase, activation of eukaryotic initiation factor 4E binding protein 1 (4E-BP1, an inhibitor of translation initiation), and eventual inhibition of 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.


For Research Use Only. Not For Use In Diagnostic Procedures.

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