p70 S6K (phospho-T421) polyclonal antibody

Product Name :
p70 S6K (phospho-T421) 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.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 :
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
p-p70 S6K (T421) polyclonal antibody detects endogenous levels of p70 S6 kinase only when phosphorylated at Thr421. This antibody also detects p85 S6 kinase when phosphorylated at Thr444. Immunogen :
Synthetic phosphopeptide derived from human p70 S6K around the phosphorylation site of Threonine 421. Conjugate :
Unconjugated Modification :
Phosphorylation

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  Western blot (WB) analysis of p-p70 S6K (T421) polyclonal antibody at 1:500 dilution Lane1:HEK293T cell lysate treated with PMA(100nM,30mins)(40ug) Lane2:HEK293T cell lysate treated with PMA(100nM,15mins)(40ug) Lane3:HEK293T cell lysate treated with PMA(100nM,5mins)(40ug) Lane3:HEK293T cell whole cell lysate(40ug)
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  Immunohistochemistry (IHC) analyzes of p-p70 S6K (T421) pAb in paraffin-embedded human breast carcinoma tissue at 1:50.showing cytoplasmic and nucleus staining. Negative control (the right)Using PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG-biotin followed by avidin-peroxidase.
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  Immunohistochemistry (IHC) analyzes of p-p70 S6K (T421) pAb in paraffin-embedded human breast carcinoma tissue at 1:50.showing cytoplasmic and nucleus staining. Negative control (the right)Using PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG-biotin followed by avidin-peroxidase.

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

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/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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