| Assay Method Information | |
| | In vitro Assay |
| Description: | The enzymatic activity of compounds of the present invention was monitored measuring the formation of ADP using the ADP-GLO Kinases assay. Following the incubation of the purified enzyme, a substrate and ATP, the produced ADP was converted into ATP, which in turn was converted into light by Ultra-Glo Luciferase. The luminescent signal positively correlated with ADP amount and kinase activity. Briefly, the kinase reaction was performed by incubating 2.6 nM of the purified, commercially available human ALK5 (recombinant TGF (31 N-term GST-tagged, 80-end), a final concentration of TGF(31 peptide 94.5 μM (Promega, T36-58) and ultra-pure ATP (Promega V915B). The ATP concentration was set at the Km value (concentration of substrate which permits the enzyme to achieve half maximal velocity (Vmax)) of ALK5 (5 μM). All reactions/incubations were performed at 25° C. Compound and ALK5 kinase were mixed and incubated for 15 mins. Reactions were initiated by addition of ATP at a final concentration in the assay of 0.8301 After an incubation of 150 min, the reaction was stopped, and ADP production detected with ADP-Glo kit according to manufacturer's indications. |
| Affinity data for this assay | |
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