Assay Method Information

Assay Name:  Radioligand Binding Assays
Description:  Radioligand binding assays for human 5-HT2A receptor was conducted using the 5-HT2 agonist [125]DOI as radioligand. To define nonspecific binding, 10 μM DOI was used for all assays. For competitive binding studies, 0.5 nM [125]DOI was used and compounds were assayed over a range of 0.01 nM to 10 μM. Assays were conducted in a total volume of 200 μl in 96-well Perkin Elmer GF/C filter plates in assay buffer (50 mM Tris-HCl, pH 7.4, 0.5 mM EDTA, 5 mM MgCl2, and 10 μM pargyline). Assay incubations were performed for 60 min at room temperature and were terminated by rapid filtration under vacuum pressure of the reaction mixture over Whatman GF/C glass fiber filters presoaked in 0.5% PEI using a Brandell cell harvestor.
Affinity data for this assay

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