| Assay Method Information | |
| | [35S]-GTPγS Assay |
| Description: | The stimulation of [35S]-GTPγS binding is a common functional assay to monitor Gαi-coupled receptor in native and recombinant receptor membrane preparation. Membrane from cells stably expressing hmGlu2 CHO-K1 (50 μg) are incubated in a 96 well plate for 1 hour in the presence of GTPγS35 (0.05 nM), GDP (5 μM) and compounds. The reaction is stopped by rapid filtration over Unifilter GF/B plate (Packard, Bioscience, Meriden Conn.) using a 96-well cell harvester (Brandel Gaithersburg, Md.). The filter plates are counted using Topcount counter (Packard, Bioscience, Meriden Conn., USA). When compounds are evaluated as potentiators they are tested in the presence of glutamate (1 μM). |
| Affinity data for this assay | |
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