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外観
白色～褐色, 結晶～粉末
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溶解性
DMSOに溶け、水に溶けない。
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用途
プロテインキナーゼ阻害剤。
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使用上の注意
安定性 : 1mg/ml(DMSO)溶液状態では、-20℃で6ヶ月間安定。
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使用
Bisindolylmaleimide is used as a highly selective inhibitor of all PKC isoforms and slight inhibitor of GSK-3, used to selectively probe for PKC-mediated pathways for transduction of hormone, cytokine, and growth factor signals, very potent and selective inhibitor of protein kinase C.
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生物活性
Very potent and selective inhibitor of protein kinase C, selective for the α and β 1 isoforms (IC 50 values are 0.0084, 0.0180, 0.210, 0.132, and 5.8 μ M for α , β 1, δ , ε , and ζ isoforms respectively). Selective over MLCK, PKG and PKA (IC 50 values are 0.6, 4.6, and 33 μ M respectively). Potent antagonist at the 5-HT 3 receptor (K i = 29.5 nM). Anti-inflammatory in vivo . Also available as part of the Mixed Kinase Inhibitor Tocriset™ .
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Biochem/physiol Actions
A potent and selective competitive inhibitor of protein kinase C (PKC) and of glycogen synthase kinase-3 (GSK-3). Inhibits parathyroid hormone-induced Ca2+ resorption from isolated bone tissue, Staurosporine, another protein kinase inhibitor, actually enhanced Ca2+ resorption elicited by a number of agents, but GF109203X counteracted that enhancement.
