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Phospho-p70 S6 Kinase (Thr389) (108D2) Rabbit mAb
synthetic phosphopeptide corresponding to residues surrounding Thr389 of human p70 S6 kinase
W
详见MSDS文件
H,M,R,Mk
详见说明书
CST
大量
1
-20°c
40 ul (4 western blots)/100 ul (10 western blots)/300 ul (30 western blots)/carrier free & custom formulation / quantity
规格: | 产品价格: | ¥请询价 | |
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规格: | 40 ul (4 western blots) | 产品价格: | ¥请询价 |
规格: | 100 ul (10 western blots) | 产品价格: | ¥请询价 |
规格: | 300 ul (30 western blots) | 产品价格: | ¥请询价 |
规格: | carrier free & custom formulation / quantity | 产品价格: | ¥请询价 |
pathway more info application references datasheet PDF MSDS PDF protocols
Applications Key: W=Western Blotting
Reactivity Key: H=Human M=Mouse R=Rat Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Applications | Reactivity | Sensitivity | MW (kDa) | Isotype |
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W | H M R Mk | Endogenous | 70, 85 | Rabbit IgG |
Protocols |
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Specificity / Sensitivity | Phospho-p70 S6 Kinase (Thr389) (108D2) Rabbit mAb detects endogenous levels of p70 S6 kinase only when phosphorylated at Thr389. This antibody also detects p85 S6 kinase when phosphorylated at the analogous site (Thr412) and possibly S6KII phosphorylated at Thr401. |
Source / Purification | Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr389 of human p70 S6 kinase. |
Background | p70 S6 kinase is a mitogen activated Ser/Thr protein kinase that is required for cell growth and G1 cell cycle progression (1,2). p70 S6 kinase phosphorylates the S6 protein of the 40S ribosomal subunit and is involved in translational control of 5' oligopyrimidine tract mRNAs (1). 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 (1). 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 (1). The activity of p70 S6 kinase is controlled by multiple phosphorylation events located within the catalytic, linker and pseudosubstrate domains (1). Phosphorylation of Thr229 in the catalytic domain and Thr389 in the linker domain are most critical for kinase function (1). Phosphorylation of Thr389, however, most closely correlates with p70 kinase activity in vivo (3). Prior phosphorylation of Thr389 is required for the action of phosphoinositide 3-dependent protein kinase 1 (PDK1) on Thr229 (4,5). 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) (1,6,7). Ser411, Thr421 and Ser424 lie within a Ser-Pro-rich region located in the pseudosubstrate region (1). Phosphorylation at these sites is thought to activate p70 S6 kinase via relief of pseudosubstrate suppression (1,2). 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 (8).
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Application References |
Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know! |
Companion Products |
Rabbit Monoclonals Produced Using Epitomics® Technology, U.S. Patent No. 5,675,063. For Research Use Only. Not For Use In Diagnostic Procedures. |
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