| Assay Method Information | |
| | Biological Assay |
| Description: | Recombinant ROCK1 and ROCK2 was purchased from Thermo Fisher with catalogue numbers PV3691 and PR71168. The inhibition potency of compounds against these enzymes was assessed using Lance Ultra Kinase Assay. In brief, recombinant kinases were pre-incubated in the presence or absence of compound at room temperature for 30 minutes. The reaction was initiated by the addition of the ATP (Km) and substrate peptide which could be phosphorylated by kinases in the reaction. After 1 h incubation, the reaction was stopped by the addition of the detection reagent mix containing EDTA. The fluorescence was measured at 615 nm and 665 nm, respectively with excitation wavelength at 320 nm. The calculated signal ratio of 665 nm/615 nm is proportional to the kinase activity. The concentration of compound producing 50% inhibition of the respective kinase (IC50) was calculated using four-parameter logistic. |
| Affinity data for this assay | |
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