Molecular Weight(MW): 274.32
Senexin A is a potent and selective inhibitor of CDK8 and its nearest relative, CDK19 with Kd values of 0.83 μM and 0.31 μM for CDK8 and CDK19 ATP site binding, respectively.
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|Description||Senexin A is a potent and selective inhibitor of CDK8 and its nearest relative, CDK19 with Kd values of 0.83 μM and 0.31 μM for CDK8 and CDK19 ATP site binding, respectively.|
p21 is shown to activate NF-κB–dependent transcription, and Senexin A inhibits p21-stimulated activity of the consensus NF-κB–dependent promoter. Senexin A has no effect on p21 induction by IPTG, on cell growth with or without p21, or on p21-induced senescent phenotype. Senexin A does not affect the inhibition of gene expression by p21 and does not interfere with p21-mediated inhibition of large sets of genes belonging to Gene Ontology (GO) categories of mitosis and DNA replication. Senexin A inhibits only p21-induced transcription but not other biological effects of p21. Senexin A inhibits CDK8 and CDK19 ATP site binding with Kd50 of 0.83 μM and 0.31 μM, respectively and CDK8 kinase activity with IC50 of 0.28 μM. Senexin A inhibits β-catenin–dependent transcription in HCT116 colon carcinoma cells. It does not inhibit ROCK and did not share cortistatin A's strong antiendothelial cell activity.
|In vivo||The CDK8/19 inhibitor Senexin A reverses chemotherapy-induced paracrine tumor-promoting activities in vivo and does not inhibit reporter cell growth and showed no detectable toxicity in a mouse study.|
|In vitro||DMSO||54 mg/mL (196.85 mM)|
|Ethanol||54 mg/mL (196.85 mM)|
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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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