Assay Method Information | |
| Binding Assay |
Description: | Measurement of EP2 receptor binding affinity was carried out according to the method of Abramovitz et al. (Biochimica et Biophysica Acta, 1483, 285 (2000)). A test compound dissolved in dimethylsulfoxide and [3H]PGE2 (NET-428, available from PerkinElmer Inc.) (final concentration: 10 nM) were added to a buffer solution (10 mM MES-KOH (pH 6.0), 10 mM MgCl2, 1 mM EDTA) in which 10 μg of a membrane fraction (ES-562-M, available from Euroscreen S.A.) of HEK293 cells expressing human EP2 receptor had been suspended, followed by incubation at 30° C. for 60 minutes. The membrane fraction was recovered on glass fiber filter paper (GF/B, available from Whatman PLC) using a cell harvester (M30R, available from Brandel Inc.), and after washing with a buffer solution (10 mM MES-KOH (pH 6.0), 10 mM MgCl2), radioactivity was measured with a liquid scintillation analyzer (2000CA, available from Packard). |
Affinity data for this assay | |
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