Merck, 5005060001, EPAC Inhibitor, ESI-09

General description
A cell-permeable compound that targets cAMP-binding domain of EPAC/cAMP-GEF and inhibits cAMP-dependent EPAC GEF activity (IC₅₀ = 1.4 and 3.2 µM, respectively, against EPAC2 and EPAC1).
A cell-permeable, propionitrile compound that targets the CBD (cAMP-binding domain) of EPAC/cAMP-GEF with 4-fold higher affinity than cAMP (IC₅₀ = 10 vs. 39 µM, respectively, against 8-NBD-cAMP in competition EPAC2 binding assay) and selectively inhibits cAMP-dependent EPAC GEF activity (IC₅₀ = 1.4 and 3.2 µM, respectively, against EPAC2 and EPAC1; [cAMP] = 25 µM) with much reduced potency toward cAMP-dependent PKA activity (10% and 20% inhibition at 100 µM, respectively, against 100 µM cAMP-stimulated Type Iα and IIβ PKA activity). Shown to block both basal and 8-CPT-2′-O-Me-cAMP prodrug 007-AM-stimulated Akt thr308/Ser473 phosphorylations in serum-starved human pancreatic cancer AsPC-1 (%thr308/%Ser473 of basal phosphorylation = 200%/185%, 85%/65%, and Mol Pharmacol.83, 122.
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CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
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Toxicity: Standard Handling (A)