Revision 1

#2903Store at -20C

1 Kit

(6 x 20 microliters)

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Quantity Mol. Wt Isotype/Source
Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb 4858 20 µl 32 kDa Rabbit IgG
Phospho-S6 Ribosomal Protein (Ser240/244) (D68F8) XP® Rabbit mAb 5364 20 µl 32 kDa Rabbit IgG
Phospho-eIF4B (Ser422) Antibody 3591 20 µl 80 kDa Rabbit 
Phospho-eEF2k (Ser366) Antibody 3691 20 µl 105 kDa Rabbit 
Phospho-p70 S6 Kinase (Thr389) (108D2) Rabbit mAb 9234 20 µl 70, 85 kDa Rabbit IgG
p70 S6 Kinase (49D7) Rabbit mAb 2708 20 µl 70, 85 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

The p70 S6 Kinase Substrates Antibody Sampler Kit provides a fast and economical means of evaluating several substrates of p70 S6 Kinase. The kit contains enough primary and secondary antibody to perform two Western blot experiments.

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Background

p70 S6 kinase is a mitogen activated Ser/Thr protein kinase that is required for cell growth and G1 cell cycle progression (1,2). p70 S6 kinase phosphorylates the S6 protein of the 40S ribosomal subunit and is involved in translational control of 5' oligopyrimidine tract mRNAs (1). Important S6 ribosomal protein phosphorylation sites include several residues (Ser235, Ser236, Ser240, Ser244) located wtihin a small, carboxy-terminal region of the S6 protein (3,4). p70 S6 kinase has been shown to phosphorylate eIF4B at the rapamycin-sensitive site Ser422 in vivo, and a Ser422Ala mutant of eIF4B shows diminished activity in an in vitro translation assay (5). Phosphorylation of eEF2K by p70 S6 kinase and p90RSK leads to inactivation of eEF2K (6), facilitating the dephosphorylation of eEF2 and thus promoting translation.

  1. Pullen, N. and Thomas, G. (1997) FEBS Lett 410, 78-82.
  2. Dufner, A. and Thomas, G. (1999) Exp Cell Res 253, 100-9.
  3. Ferrari, S. et al. (1991) J Biol Chem 266, 22770-5.
  4. Flotow, H. and Thomas, G. (1992) J Biol Chem 267, 3074-8.
  5. Raught, B. et al. (2004) EMBO J 23, 1761-9.
  6. Wang, X. et al. (2001) EMBO J 20, 4370-9.

Background References

    Trademarks and Patents

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

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