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Merck

559273

S6K1 Inhibitor, PF-4708671

The S6K1 Inhibitor, PF-4708671 controls the biological activity of S6K1. This small molecule/inhibitor is primarily used for Cancer applications.

Synonym(s):

S6K1 Inhibitor, PF-4708671, (2-((4-(5-Ethylpyrimidin-4-yl)piperazin-1-yl)methyl)-5-(trifluoromethyl)-1H-benzo[d]imidazole, p70 Ribosomal S6 Kinase 1 Inhibitor

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About This Item

Empirical Formula (Hill Notation):
C19H21F3N6
Molecular Weight:
390.41
UNSPSC Code:
12352200
NACRES:
NA.28
MDL number:
Assay:
≥98% (HPLC)
Form:
solid
Storage condition:
OK to freeze, protect from light
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Quality Segment

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

SMILES string

FC(F)(F)c1cc2nc([nH]c2cc1)CN3CCN(CC3)c4ncncc4CC

InChI key

FBLPQCAQRNSVHB-UHFFFAOYSA-N

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 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

Preparation Note

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

Disclaimer

Toxicity: Standard Handling (A)


Storage Class

11 - Combustible Solids

wgk

WGK 3

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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