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You are here:Home » Biochemicals » Biochem-Antibiotics » Rapamycin



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Selectively inhibits the mammalian target of rapamycin (mTOR) and blocks the subsequent activation of p70 S6 kinase (IC50=50pM). Specifically inhibits mTORC1, but mTORC2 that phosphorylates Akt at Ser473 appears to be insensitive to rapamycin. Prevents the translational activation of IGF-II. Also prevents resting T-cells from entering the cell cycle, but does not directly arrest cell cycle progression. Shown to inhibit later signaling events, such as p110Rb phosphorylation, p34cdc2 kinase activation, and cyclin A synthesis. Exhibits strong binding to FK-506 binding proteins. Also reported to induce apoptosis in a murine B-cell line, to inhibit lymphokine-induced cell proliferation at the G1 phase, and to irreversibly arrest Saccharomyces cerevisiae cells in the G1 phase.
Catalog #029598
SolubilityDMSO (25mg/ml) Ethanol (9mg/ml) or Methanol (1mg/ml)
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°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.
CAS Number53123-88-9
Molecular FormulaC51H79NO13
Molecular Weight914.2
Purity98% (HPLC)
FormSupplied as a powder
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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