Recombinant Human p70 S6 Kinase/S6K Protein

SDS-Page: Recombinant p70 S6 Kinase/S6K Protein [NBP1-99489]

Product Discontinued

Recombinant Human p70 S6 Kinase/S6K Protein Summary

• Description: Recombinant protein for Human p70 S6 Kinase/S6K
  
  Source:Baculovirus (Sf9 insect cells)
  Amino Acid Sequence:(P23443)
  
  This product is manufactured by Abcam and distributed by Novus Biologicals. (Abcam Catalog Number: ab62291)
• Source: Sf 9 (baculovirus)
• Protein/Peptide Type: Recombinant Protein
• Gene: RPS6KB1
• Purity: >90%, by SDS-PAGE

Applications/Dilutions

• Dilutions:
  • Bioactivity
  • SDS-Page
• Application Notes: Specific activity: 132 nmol phosphate incorporated into S6K substrate peptide per minute per mg protein at 30C for 15 minutes using a final concentration of 50 uM ATP (0.83 uCi/assay).
• Theoretical MW: 76 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at -80C. Avoid freeze-thaw cycles.
• Buffer: 50 mM Tris-HCl (pH 7.5), 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, 25% glycerol
• Concentration: 0.1 mg/ml
• Purity: >90%, by SDS-PAGE

Alternate Names for Recombinant Human p70 S6 Kinase/S6K Protein

• EC 2.7.11
• EC 2.7.11.1
• p70 ribosomal S6 kinase alpha
• p70 S6 kinase alpha
• p70 S6 Kinase
• p70 S6 kinase, alpha 1,70 kDa ribosomal protein S6 kinase 1
• p70 S6 kinase, alpha 2
• p70 S6KA
• p70 S6K-alpha
• p70(S6K)-alpha
• p70-alpha
• p70-S6K
• P70S6K1
• PS6K
• ribosomal protein S6 kinase beta-1
• Ribosomal protein S6 kinase I
• ribosomal protein S6 kinase, 70kD, polypeptide 1
• ribosomal protein S6 kinase, 70kDa, polypeptide 1
• RPS6KB1
• S6K
• S6K1
• S6K1p70-S6K 1
• S6K-beta-1
• serine/threonine kinase 14 alpha
• Serine/threonine-protein kinase 14A
• STK14A

Background

Activation of cell growth leads to the multiple phosphorylation of 40S ribosomal protein S6. The kinase responsible for controlling this event is termed p70S6K (1). Northern blot analysis shows p70S6K to be ubiquitously expressed in human adult tissues. p70S6K is activated by serum stimulation, and the serum-induced activation is inhibited by wortmannin and rapamycin. p70S6k activity undergoes changes in the cell cycle and increases 20-fold in G1 cells released from G0 (2). The kinase is reactivated 10-fold when cells released from a nocodazole-induced metaphase block enter G1 of the next cell cycle. The immunosuppressive agent rapamycin induces inactivation of p70s6k with no effect on other mitogen-activated kinases (3). The principal target of rapamycin-induced p70s6k inactivation is T389 site on p70S6K, which is located in an unusual hydrophobic sequence outside the catalytic domain. Mutation of T389 to alanine ablates kinase activity, whereas mutation to glutamic acid confers constitutive kinase activity and rapamycin resistance. p70S6K activation by growth factor requires phosphorylation by various inputs on multiple sites (4). p70S6K activation requires sequential phosphorylations at proline-directed residues in the putative autoinhibitory pseudosubstrate domain, as well as threonine 389. Threonine 229, a site in the catalytic loop is phosphorylated by phosphoinositide-dependent kinase 1 (PDK-1). Activation of p70S6K requires a phosphoinositide 3-kinase (PI3-K)-dependent signal(s).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

Bioinformatics

• Gene Symbol: RPS6KB1