| Assay Method Information | |
| | Binding Assay |
| Description: | Cell membrane homogenates (15 μg protein) were incubated for 120 min at 37° C. with 0.8 nM [3H]WIN 55212-2 (the reference standard [Munro, 1993 #1321]) in the absence or presence of the test compound in a buffer containing 50 mM HEPES/Tris HCL (pH 7.4), 5 mM MgCl2, 2.5 mM EGTA, and 0.1% BSA. Nonspecific binding was determined in the presence of 10 μM WIN 55212-2. After being incubated, the samples were filtered rapidly under vacuum through glass fiber filters (GF/B; Packard) presoaked with 0.3% PEI and rinsed several times with ice-cold buffer containing 50 mM Tris HCl (pH 7.4) and 0.5% BSA using a 96-sample cell harvester (Unifilter; Packard). The filters were dried then counted for radioactivity in a scintillation counter (Topcount; Packard) using a scintillation cocktail (Microscint 0; Packard). |
| Affinity data for this assay | |
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