Assay Method Information

Assay Name:  Enzyme Inhibition Assay
Description:  The inhibition of PI3Kβ, PI3Kα, PI3Kγ and PI3Kδ was evaluated in a Kinase Glo based enzyme activity assay using human recombinant enzymes. The assay measures depletion of ATP after incubation with enzyme, PIP2 and ATP plus compound. ATP at the end of the reaction is detected by addition of Kinase Glo reagent, in this the Ultra Glo luciferase (Promega) uses the ATP as a substrate to catalyze the mono-oxygenation of luciferin and the generation of light. A direct relationship exists between the luminescence measured with the Kinase-Glo Plus Reagent and the amount of ATP remaining in a completed kinase reaction and luminescence is inversely related to kinase activity.
Affinity data for this assay
 

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