Product Name :
S6K1 polyclonal antibody Background :
p70 S6 kinase is a mitogen activated Ser/Thr protein kinase that is required for cell growth and G1 cell cycle progression . p70 S6 kinase phosphorylates the S6 protein of the 40S ribosomal subunit and is involved in translational control of 5' oligopyrimidine tract mRNAs. A second isoform, p85 S6 kinase, is derived from the same gene and is identical to p70 S6 kinase except for 23 extra residues at the amino terminus, which encode a nuclear localizing signal . Both isoforms lie on a mitogen activated signaling pathway downstream of phosphoinositide-3 kinase (PI-3K) and the target of rapamycin, FRAP/mTOR, a pathway distinct from the Ras/MAP kinase cascade . The activity of p70 S6 kinase is controlled by multiple phosphorylation events located within the catalytic, linker and pseudosubstrate domains . Phosphorylation of Thr229 in the catalytic domain and Thr389 in the linker domain are most critical for kinase function . Phosphorylation of Thr389, however, most closely correlates with p70 kinase activity in vivo . Prior phosphorylation of Thr389 is required for the action of phosphoinositide 3-dependent protein kinase 1 (PDK1) on Thr229 . Phosphorylation of this site is stimulated by growth factors such as insulin, EGF and FGF, as well as by serum and some G-protein-coupled receptor ligands, and is blocked by wortmannin, LY294002 (PI-3K inhibitor) and rapamycin (FRAP/mTOR inhibitor) . Ser411, Thr421 and Ser424 lie within a Ser-Pro-rich region located in the pseudosubstrate region . Phosphorylation at these sites is thought to activate p70 S6 kinase via relief of pseudosubstrate suppression . Another LY294002 and rapamycin sensitive phosphorylation site, Ser371, is an in vitro substrate for mTOR and correlates well with the activity of a partially rapamycin resistant mutant p70 S6 kinase. Product :
Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide. Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
Recognizes endogenous levels of S6K1 protein. Immunogen :
KLH-conjugated synthetic peptide encompassing a sequence within the center region of human S6K1. The exact sequence is proprietary. Conjugate :
Unconjugated Modification :
Unmodification

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  Western blot analysis of S6K1 expression in Hela (A), rat oviduct (B), 3T3L1 (C), PC12 (D) whole cell lysates.
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  Immunohistochemical analysis of S6K1 staining in human breast cancer formalin fixed paraffin embedded tissue section. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0). The section was then incubated with the antibody at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

Bioworld Biotech only provide peptides for our antibodies and do not provide additional peptide customization services.

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Price/Size :

USD 368/1mg/vial

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Tips: 

For phospho antibody, we provide phospho peptide（0.5mg) and non-phospho peptide(0.5mg).

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Describe :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (WB) and Immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or IHC performed with the neutralized antibody.

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Formula:

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.

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Storage:

The freeze-dried powder is more stable. For short time at 2-8°C. For long term storage store at -20°C. 

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Note :

This product is for research use only (RUO only). Not for use in diagnostic or therapeutic procedures.

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