| Assay Method Information | |
| | Luciferase Assay |
| Description: | The stock cultures are grown, at 37° C. and under 5% CO2, in DMEM/F12 medium containing 10% FCS (fetal calf serum) and in each case split 1:10 after 2-3 days. Test cultures are seeded in 384-well plates with 2000 cells per well and grown at 37° C. for approx. 48 hours. The medium is then replaced with a physiological sodium chloride solution (130 mM sodium chloride, 5 mM potassium chloride, 2 mM calcium chloride, 20 mM HEPES, 1 mM magnesium chloride hexahydrate, 5 mM sodium bicarbonate, pH 7.4). The substances to be tested, which are dissolved in DMSO, are pipetted into the test cultures (maximum final concentration of DMSO in the test mixture: 0.5%) in a dilution series of from 5x10-11 M to 3x10-6 M (final concentration). 10 minutes later, forskolin is added to the A1 cells and all the cultures are subsequently incubated at 37° C. for four hours. After that, 35 ul of a solution which is composed of 50% lysis reagent (30 mM disodium hydrogenphosphate, 10% glycerol, 3% TritonX100, 25 mM TrisHCl, 2 mM dithiotreitol (DTT), pH 7.8) and 50% luciferase substrate solution (2.5 mM ATP, 0.5 mM luciferin, 0.1 mM coenzyme A, 10 mM tricine, 1.35 mM magnesium sulfate, 15 mM DTT, pH 7.8) are added to the test cultures, which are shaken for approx. 1 minute and the luciferase activity is measured using a camera system. |
| Affinity data for this assay | |
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