Assay Method Information |
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| Inhibition Assay |
Description: | Assays are performed in 96-well format in a final volume of 60 μL/well, containing 100 mM potassium phosphate, pH 7.4, 1% (v/v) DMSO, and additionally, 2 μM of corticosterone and 50 units of CYP11B2 activity. Reactions are started by the addition of NADPH to 1 mM and allowed to proceed for 90 minutes at 37° C. Reactions are terminated by the addition of 60 μL of MeCN containing an internal standard for mass spectrometry. One hundred microliters are then transferred to a glass filter plate and centrifuged at 570×g for 5 minutes and the filtrate is collected. Reaction product aldosterone is quantified by mass spectrometry. To determine the assay blank value (0% activity), NADPH is omitted from some reactions. |
Affinity data for this assay | |
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