p70 S6K (F428) polyclonal antibody

P23443

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.

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

p70 S6K (F428) pAb detects endogenous levels of p70 S6 Kinase protein.This antibody also recognizes p85 S6 kinase protein.

Immunohistochemistry (IHC) analyzes of p70 S6K (F428) pAb in paraffin-embedded human breast carcinoma tissue at 1:100.

For research use only, not for use in diagnostic procedure.

Synthetic peptide, corresponding to amino acids 400-450 of Human p70 S6K.