General description
A cell-permeable piperazinyl-pyrimidine compound that acts as an inhibitor against S6K1 (Ki = 20 nM; IC50 = 160 nM) and MSK1 (IC50 = 950 nM) kinase activity, exhibiting little or much reduced potency against 85 other protein and lipid kinases (IC50 = 4.7, 9.2, 65 µM, respectively, against RSK1, RSK2, and S6K2; ≤27% inhibition of the rest at 1 µM). Shown to selectively inhibit IGF1- and PMA-stimulated S6K1 substrates phosphorylation in HEK-293 cells in a dose-dependent manner (up to 10 µM) in vitro and alleviate heart remodeling and functional damage in a MI (myocardial infarction) model in mice in vivo (75/mg/kg/daily i.p.).
A cell-permeable piperazinyl-pyrimidine compound that acts as an inhibitor against S6K1 (Ki = 20 nM; IC50 = 160 nM) and MSK1 (IC50 = 950 nM) kinase activity, exhibiting little or much reduced potency against a panel of 75 other protein kinases (IC50 = 4.7, 9.2, 65 µM, respectively, against RSK1, RSK2, and S6K2; ≤27% inhibition of the rest at 1 µM) and 10 lipid kinases (≤6% inhibition at 10 µM). Inhibits IGF1-induced phosphorylation of cellular S6K1 substrates S6 (Ser235/236 and Ser240/244), mTOR (Ser2448), and Rictor (Thr1135) in serum-starved HEK-293 cultures, but not the phoshorylation of MSK or RSK cellular substrates (CREB Ser133 and GSK3α/β Ser21/ Ser9, respectively) upon PMA stimulation even at concentrations as high as 10 µM. Inhibition of S6K1 activation by rapamycin (Cat. Nos. 553210, 553211, & 553212) or S6K1 activity by PF-4708671 (75/mg/kg/daily i.p.) are both shown to alleviate heart remodeling and functional damage following left coronary artery ligation-induced MI (myocardial infarction) in mice in vivo. Cellular PF-4708671 treatment is also reported to result in increased S6K1 phosphorylation, likely due to a blockage of down-stream negative feedback mechanism.
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C.) Stock solutions are stable for up to 6 months at -20°C.
Other Notes
Di, R., et al. 2012. Biochem. J.441, 199.
Pearce, L.R., et al. 2010. Biochem. J.431, 245.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Molecular Weight: 390.41. Empirical Formula: C19H21F3N6. Quality Level: 100. Assay: ≥. 98% (HPLC). form: solid. manufacturer/tradename: Calbiochem®. . storage condition: OK to freeze, protect from light. color: off-white. solubility: DMSO: 50 . mg/mL, pale yellow. shipped in: ambient. storage temp.: 2-8°C. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.- UPC:
- 12352200
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 559273-10MG