| Assay Method Information | |
| | Homogeneous Time-Resolved Fluorescence Assay |
| Description: | Compounds were dissolved and serially diluted (5-fold) in DMSO to generate a 10-point dose response stock. The stock was then diluted 100-fold in assay buffer (PBS containing 1 mM IBMX) before a volume of 2.5 μL was added to the cells (the final, top concentration of compound in the dose-response is typically 10 or 100 μM). After a brief incubation, 2.5 μL of isoproterenol stock, prepared at a concentration 4 times its EC90 at the receptor of interest, was added to the wells. The EC90 for isoproterenol, a beta-adrenergic agonist, was determined in separate experiments using standard methods to measure agonist potencies.Following a 1-hour incubation at room temperature, 5 μL of cAMP-D2 Reagent diluted in Lysis Buffer was added to each well followed by 5 μL of Cryptate Reagent. Plates were further incubated at room temperature for 1 hour prior to reading. Time resolved fluorescence measurements were collected on a suitable, HTRF-capable plate reader. |
| Affinity data for this assay | |
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