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| | Adrenergic Receptor Binding Assay |
| Description: | The study of binding to human adrenergic beta1 and beta2 receptors was performed using commercial membranes prepared from Sf9 cells where they are overexpressed (Perkin Elmer). The membrane suspensions (16 μg/well for beta1 and 5 μg/well for beta2) in assay buffer (75 mM Tris/HCl with 12.5 mM MgCl2 and 2 mM EDTA pH=7.4) were incubated with 0.14 or 0.6 nM of 3H-CGP12177 (Amersham) for beta 1 and beta 2 receptors respectively in a final volume of 250 μl, in GFC Multiscreen 96 well plates (Millipore) previously treated with assay buffer containing 0.3% PEI (Sigma). Non specific binding was measured in the presence of 1 μM propanolol. Incubation was maintained for 60 minutes at room temperature and with gentle shaking. The binding reactions were terminated by filtration and washing with 2.5 volumes of Tris/HCl 50 mM pH=7.4. |
| Affinity data for this assay | |
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