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Assay Method Information

Assay Name:  Cyp17 Assay
Description:  Cyp17 assay protocol: AD293 cells that stably over-express recombinant CYP-17 were seeded in 96 well plates coated with poly D-lysine (15,000 cell per well) and incubated at 37 C. for 24 hours in Dulbecco's Modified Eagle Medium (DMEM) with Fetal Bovine Serum (FBS) that is stripped of hormones by charcoal treatment. The media is then removed, the cells are washed once with Phosphate buffer saline solution, and 50 μL Dulbecco's Modified Eagle Medium (DMEM) with Fetal Bovine Serum (FBS) that is stripped of hormones by charcoal treatment is added. Compounds of the disclosure are then added to the wells in eight concentration spanning 10 μM to 4.5 nM, and the plates are incubated for an additional 60 minutes at 37 C. [21-3H] 17α-hydroxyl-Pregnenolone is then added (50 nCi per well, 31.25 nM) and the plates are incubated for an additional 4 hours at 37 C. The media is then collected, 200 μL of chloroform is added, and the mixture is shaken for 1 hour. The aqueous layer is then separated and analyzed for the presence of 3H-acetic acid using a Perkin Elmer Topcount NXT to determine IC50s of the compounds of the disclosure.
Affinity data for this assay
 

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Last update November 1, 2007
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