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Product Pathways - Protein Translation

Raptor (24C12) Rabbit mAb #2280

Item# Description List Price Web Price Qty
2280S Raptor (24C12) Rabbit mAb - 100 µl $383.00
$344.70
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2280T Raptor (24C12) Rabbit mAb - 20 µl $163.00
$146.70
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*On-line ordering is for Canadian customers only. Web pricing is applicable only to orders placed online at www.neb.ca
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VIEW COMPANION PRODUCTS HIDE COMPANION PRODUCTS
Application Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W Human, Mouse, Rat, Monkey Endogenous 150 Rabbit
IP

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IP=Immunoprecipitation

Specificity / Sensitivity

Raptor (24C12) Rabbit mAb detects endogenous levels of total Raptor protein.

Source / Purification

Raptor (24C12) Rabbit mAb is produced by immunizing rabbits with a synthetic peptide corresponding to the sequence of human Raptor.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines, using Raptor (24C12) Rabbit mAb.

Background

The regulatory associated protein of mTOR (Raptor) was identified as an mTOR binding partner that mediates mTOR signaling to downstream targets (1,2). Raptor binds to mTOR substrates, including 4E-BP1 and p70 S6 kinase, through their TOR signaling (TOS) motifs and is required for mTOR-mediated phosphorylation of these substrates (3,4). Binding of the FKBP12-rapamycin complex to mTOR inhibits the mTOR-raptor interaction, suggesting a mechanism for rapamycin's specific inhibition of mTOR signaling (5). This mTOR-raptor interaction and its regulation by nutrients and/or rapamycin is dependent on a protein called GβL (6). GβL is also part of the rapamycin-insensitive complex between mTOR and rictor (rapamycin-insensitive companion of mTOR), and may mediate rictor-mTOR signaling to downstream targets including PKCα (7). Furthermore, the rictor-mTOR complex has been identified as the previously elusive PDK2 responsible for the phosphorylation of Akt/PKB on Ser473, facilitating phosphorylation of Akt/PKB on Thr308 by PDK1 and required for the full activation of Akt/PKB (8).

Recently raptor has been identified as a direct substrate of the AMP-activated protein kinase (AMPK) (9). AMPK phosphorylates raptor on Ser722/Ser792 (9). This phosphorylation is essential for inhibition of the raptor-containing mTOR complex 1 (mTORC1) and induces cell cycle arrest when cells are stressed for energy (9). These findings suggest that raptor is a critical switch that correlates cell cycle progression with energy status.

  1. Hara, K. et al. (2002) Cell 110, 177-89.
  2. Kim, D. et al. (2002) Cell 110, 163-75.
  3. Beugnet, A. et al. (2003) J. Biol. Chem. 278, 40717-22.
  4. Nojima, H. et al. (2003) J. Biol. Chem. 278, 15461-64.
  5. Oshiro, N. et al. (2004) Genes Cells 9, 359-66.
  6. Kim, D. H. et al. (2003) Mol. Cell 11, 895-904.
  7. Sarbassov, D. et al. (2004) Curr. Biol. 14, 1296-302.
  8. Sarbassov, D.D. et al. (2005) Science 307, 1098-101.
  9. Gwinn, D.M. et al. (2008) Mol Cell 30, 214-26.

Application References

  • Hosokawa, N. et al. (2009) Mol Biol Cell 20, 1981-91. Applications: Western Blotting.
  • Hasumi, Y. et al. (2009) Proc Natl Acad Sci U S A 106, 18722-7. Applications: Western Blotting.
  • Wu, M. et al. (2010) Rejuvenation Res 13, 571-9. Applications: Western Blotting.
  • Chen, C.H. et al. (2011) Sci Signal 4, ra10. Applications: Western Blotting.
  • Lee, J.W. et al. (2010) PLoS One 5, e15394. Applications: Western Blotting.
  • Gao, D. et al. (2011) Mol Cell 44, 290-303. Applications: Western Blotting.
  • Roczniak-Ferguson, A. et al. (2012) Sci Signal 5, ra42. Applications: Western Blotting.
  • Rosner, M. et al. (2009) Hum Mol Genet 18, 3298-310. Applications: Western Blotting.
  • Roca, H. et al. (2009) Neoplasia 11, 1309-17. Applications: Western Blotting.
  • Mihaylova, M.M. et al. (2011) Cell 145, 607-21. Applications: Western Blotting.
  • Liu, P. et al. (2014) Nature 508, 541-5. Applications: Western Blotting.
  • Rapino, F. et al. (2018) Nature , . Applications: Western Blotting.

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!


 

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