Ribosomal Protein S6, phosphorylated (Ser235/236)

To effectively promote growth and cell division in a sustained manner, growth factors and mitogens must upregulate translation (1,2). Growth factors and mitogens induce the activation of p70 S6 kinase, which in turn phosphorylate the S6 ribosomal protein. Phosphorylation of S6 correlates with an increase in translation, particularly of mRNAs with an oligopyrimidine tract in their 5' untranslated regions (2). This group of mRNAs (5'TOP) encodes proteins involved in cell cycle progression and proteins that are part of the translational machinery, such as ribosomal proteins and elongation factors \n(2,3). The main in vivo S6 ribosomal protein phosphorylation sites, including Ser235, Ser236, Ser240 and Ser244, have been identified and are located within a small 19 amino acid region at its carboxyl terminus (4,5).\n\nApplications:\nSuitable for use in ELISA, Western Blot, Immunoprecipitation, Immunohistochemistry, Immunocytochemistry and Flow Cytometry. Other applications have not been tested.\n\nRecommended Dilution: \nWestern Blot: 1:1,000, incubate membrane with diluted antibody in 5% BSA, 1X TBS, 0.1% Tween-20 at 4 degrees C with gentle shaking, overnight.\nImmunoprecipitation: 1:100\nImmunohistochemistry (Paraffin): 1:50\nImmunocytochemistry (for IF): 1:50\nFlow Cytometry: 1:50\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. For long-term storage, store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

R2031-31

Size

100ul

Applications

ELISA, FC, ICC, IF, IHC, IP, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as liquid in 10mM HEPES, pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, 50% glycerol. No preservative added.

P Type

Pab

Purity

Purified by Protein A affinity chromatography.

Isotype

IgG

References

1. Dufner, A. and Thomas, G. (1999) Exp. Cell Res. 253: 100

Additional Info

Detects endogenous levels of human ribosomal protein S6 only when phosphorylated at Ser235/236 (Mr 32kD). Does not detect ribosomal protein S6 phosphorylated at other sites. Species Crossreactivity: Mouse, rat and zebrafish. Species sequence homology: chicken and Xenopus 100%.