| Assay Method Information | |
| | PAS Kinase Luminescence Assay |
| Description: | One assay for purified hPASK activity utilizes the Kinase-Glo Luminescent Kinase Assay (Promega), which quantifies the amount of ATP remaining in solution following kinase reaction. The assay is carried out in a 96-well plate format and is performed by adding a volume of Kinase-Glo Reagent (Promega, catalog #V3771) equal to the volume of solution in the well of a completed kinase reaction. Kinase-Glo reagent contains Luciferase and its substrate. After addition to a kinase reaction it allows to measure luminescence. The amount of ATP left in solution at the time of Kinase-Glo Plus addition is directly proportional to the luminescence that is measured in each well, and inversely correlated with kinase activity.Purified hPASK from insect cells (0.02 g) is added to a 50 L reaction mix containing 40 mM HEPES (pH 7.0), 100 mM KCl, 5 mM MgCl2, 1 mM DTT and 1 g of MBP protein. Inhibitory compounds are then added and the mixture is incubated for 10 min at 25° C. before adding 5 L of ATP (at desired concentration). The reaction is allowed to proceed at 25° C. for 1 hour before adding 50 L of Kinase-Glo reagent. The luminescence is measured as soon as 10 minutes after Kinase-Glo reagent is added. |
| Affinity data for this assay | |
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