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Assay Method Information |
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| | Biochemical Assay |
| Description: | Biochemical assay was tested in the U-shaped bottom 384 plate (corning, #4514) with a final volume of 20 ul at 27° C. The concentration of CDC7 was optimized by the enzyme titration experiment. CDC7 kinase was diluted in assay buffer (40 mM Tris.HCl pH 7.25, 100 ug/mL BSA, and 20 mM MgCl2) to get 2.4× enzyme solutions. Compounds were dissolved in 10 mM DMSO, and series diluted in DMSO from 0.3 mM to 0.3 nM (5 concentration pts); All dilutions were diluted 30× in assay buffer to get 6× compounds solutions. MCM2 Substrate and ATP were diluted to 2.4× mixed solution. Add 2 ul test compound solution to 384 assay plate, then add 5 ul substrate/ATP mixed solution, at last add 5 ul enzyme solution, incubate at 27° C. for 180 mins. Transfer 5 ul reaction solution to another 384 assay plate, then add 5 ul ADP-Glo Reagent (Promega) to each well and incubate at 27° C. for 40 mins; Add 10 ul Kinase Detection Reagent (Promega) to each well and incubate at 27° C. for 30 mins. 10 uM CDC7-3 compound was used as 100% inhibition while 100% DMSO control was used as 0% inhibition. Each test has three replications at least. |
| Affinity data for this assay | |
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