Revision 8

#7854Store at +4C

1 Kit

(Reagents for 4 x 96 well plates)

Species Cross Reactivity

H M R Mk

UniProt ID:

#Q13541

Entrez-Gene Id:

#1978

Cell Signaling Technology

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3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Volume Cap Color Storage Temp
Phospho-4E-BP1 (Thr37/46) Capture Rabbit mAb (100X) 18033 400 µl Pink +4C
4E-BP1 Detection Mouse mAb (100X) 40141 400 µl Blue +4C
Anti-mouse IgG, HRP-linked Antibody (1000X) 16736 40 µl Yellow -20C

Please visit cellsignal.com for a complete listing of recommended companion products.

Description

CST's PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Antibody Pair is offered as an economical alternative to our PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Kit #7216. Capture and Detection antibodies (100X stocks) and HRP-conjugated secondary antibody (1000X stock) are supplied. Sufficient reagents are supplied for 4 x 96 well ELISAs. The Phospho-4E-BP1 (Thr37/Thr46) Capture Antibody is coated in PBS overnight in a 96 well microplate. After blocking, cell lysates are added followed by a 4E-BP1 Detection Antibody and anti-Mouse IgG, HRP conjugated antibody. HRP substrate, TMB, is added for color development. The magnitude of the absorbance for this developed color is proportional to the quantity of Phospho-4E-BP1 (Thr37/Thr46) protein.
Antibodies in kit are custom formulations specific to kit.

Reagents not supplied

Phosphate Buffered Saline (PBS-20X) #9808
Phosphate Buffered Saline with Tween-20 (PBST-20X) #9809
Cell Lysis Buffer (10X) #9803
TMB Substrate #7004
STOP Solution #7002
Blocking Buffer: 1X PBS/0.5% Tween-20, 1% BSA
96 Well Microplates**
Microplate Reader
** Antibody Pairs have been validated on Corning© 96 Well Clear Polystyrene High Bind Stripwell™ Microplates (#2592).

Notes: Antibody pairs have been optimized using recommended buffers, reagents, plates and the included protocol. Solutions should be made fresh daily.

Background

Translation repressor protein 4E-BP1 (also known as PHAS-1) inhibits cap-dependent translation by binding to the translation initiation factor eIF4E. Hyperphosphorylation of 4E-BP1 disrupts this interaction and results in activation of cap-dependent translation (1). Both the PI3 kinase/Akt pathway and FRAP/mTOR kinase regulate 4E-BP1 activity (2,3). Multiple 4E-BP1 residues are phosphorylated in vivo (4). While phosphorylation by FRAP/mTOR at Thr37 and Thr46 does not prevent the binding of 4E-BP1 to eIF4E, it is thought to prime 4E-BP1 for subsequent phosphorylation at Ser65 and Thr70 (5).

  1. Pause, A. et al. (1994) Nature 371, 762-7.
  2. Brunn, G.J. et al. (1997) Science 277, 99-101.
  3. Gingras, A.C. et al. (1998) Genes Dev 12, 502-13.
  4. Fadden, P. et al. (1997) J Biol Chem 272, 10240-7.
  5. Gingras, A.C. et al. (1999) Genes Dev 13, 1422-37.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PathScan is a registered trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

    Limited Uses

    Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

    Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

    Revision 8
    #7854

    PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Antibody Pair

    PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Antibody Pair: Image 1 Expand Image
    The relationship between the protein concentration of lysate from amino acid (AA)/untreated and AA/insulin-treated HEK- 293T cells and the absorbance at 450 nM using PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Antibody Pair #7854 is shown. HEK-293T cells were serum-starved overnight and deprived of amino acids for 1 hour. The amino acids were replenished for 1 hour. Cells were either untreated or stimulated with 100 nM insulin for 30 minutes at 37ºC.