A cell-permeable triaryl substituted imidazolo compound that acts as a potent, reversible and relatively specific ATP-competitive inhibitor of CK1 (IC
50 = 0.2 µM from
S. pombe; 0.3 µM for CK1δ) and ALK5 (IC
50 = 0.5 µM). A weak inhibitor of p38α MAP kinase (IC
50 = 12 µM) and only weakly affects the activities of a panel of kinases tested, including PKB, SGK and GSK-3β. Suppresses the site-specific phosphorylation (Ser
322 and Ser
325) and nuclear exclusion of FOXO1a in H4IIE hepatoma cells. Shown to be ~10-fold more potent than IC261 (Cat. No.
400090; IC
50 = 2.5 µM for CK1).
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Product information
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Form
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Crystalline solid
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Primary Target
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CK1, CK1d
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Primary Target IC50
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0.2 µM, 0.3 µM
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Secondary target
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ALK5 (IC50 = 0.5 µM), p38a MAP kinase (IC50 = 12 µM)
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Molar mass
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398.4
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Protect from Light
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Yes
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Packaged under inert gas
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Yes
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Cell permeable
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Yes
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ATP Competitive
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Yes
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Purity
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≥95% by HPLC
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Solubility
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DMSO
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Chemical formula
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C23H18N4O3
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CAS number
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301836-43-1
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Store and ship information
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Storage
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+2°C to +8°C
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Ship
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Ambient Temperature Only
Standard Handling
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