| Assay Method Information | |
| | HTRF assay |
| Description: | The HTRF assay was carried out using a two-step protocol essentially according to the kit manufacturer's instructions, in 20 μL total volume per well in 384-well plate format (ProxiPlates; PerkinElmer, Fremont, Calif.; catalog #6008280). To each of the experimental wells was transferred 3000 recombinant CHO-K1 cells in 5 μL assay buffer (phosphate buffered saline containing calcium chloride and magnesium chloride (Invitrogen, Carlsbad, Calif.; catalog #14040) supplemented with IBMX (100 gμM) and rolipram (10 gμM) (phosphodiesterase inhibitors; Sigma-Aldrich, St. Louis, Mo.; catalog #15879 and catalog # R6520, respectively) and 0.1% bovine serum albumin (BSA) fraction V (Sigma-Aldrich; catalog # A3059)), followed by test compound in 5 μL assay buffer or 5 μL assay buffer. The plate was then incubated at room temperature for 1 h. To each well was then added 5 μL cAMP-d2 conjugate in lysis buffer and 5 μL Cryptate conjugate in lysis buffer according to the kit manufacturer's instructions. The plate was then further incubated at room temperature for 1 h, after which the assay plate was read. |
| Affinity data for this assay | |
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