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Sigma-Aldrich

mTOR Inhibitor III, PP242

The mTOR Inhibitor III, PP242 controls the biological activity of mTOR. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

Synonym(s):

mTOR Inhibitor III, PP242, 2-(4-Amino-1-isopropyl-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-1H-indol-5-ol, Dihydrate, TORKinib, mTOR Inhibitor III, PP242

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About This Item

Empirical Formula (Hill Notation):
C16H16N6O · 2H2O
Molecular Weight:
344.37
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥97% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 100 mg/mL

shipped in

wet ice

storage temp.

−20°C

General description

A cell-permeable pyrazolopyrimidine compound that acts as a potent, reversible, and ATP-competitive inhibitor against both mTORC1 & mTORC2 (IC50 = 30 & 58 nM, respectively, with 100 µM ATP). PP242 inhibits PKCα, p110γ, and JAK2 with 6-, 13-, and 14-fold less potency and exhibits much reduced or no activity against a panel of 216 other kinases at a concentration of 1 µM (maximum of 68% or 77% inhibition observed with 10 or 100 µM ATP, respectively). PP242 differentially inhibits insulin-stimulated phosphorylations of cellular proteins both in cultures (2.5 µM) in vitro and in mice (20 mg/kg i.p.) in vivo in a manner distinctly different from that seen in mTORC2-functional knockout SIN1-/- cells or in cultures treated with Rapamycin (Cat. Nos. 553210, 553211, 553212), which targets only mTORC1, but not mTORC2. Blockage of 4EBP1 T36/T45/S65 phosphorylation by PP242 upon insulin stimulation in primary MEFs correlates well with an enhanced 4EBP1 association with the cap-binding protein eIF4E, resulting in a selective inhibition of cap-dependent, but not cap-independent, protein translation.

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Other Notes

Feldman, M.E., et al. 2009. PLoS Biology7, 391.
Apsel, B., et al. 2008. Nat. Chem. Biol.4, 691.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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