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| | Receptor Binding Assay |
| Description: | The experiment was carried out according to the method of Yabuuchi et al. [Yabuuchi K. et al., Biogenic Amines, 18, 319-328 (2004)]. 50 ul of [3H] 8-OH-DPAT (final concentration: 0.5 nM), 1 ul of a test drug solution, and 149 ul of the h-5-HT1A/CHO membrane preparation (25 ug/well in terms of the amount of the protein) were added into a buffer containing 50 mM Tris-HCl (pH=7.4) and 4 mM CaCl2, and 200 ul in total of the reaction solution was used in the assay. The reaction solution was reacted at room temperature for 30 minutes and then immediately suction-filtered at a low pressure using a glass fiber filter paper. The glass fiber filter paper was washed twice with 250 ul of 50 mM Tris-HCl (pH=7.4) and then added to a counting vial containing 4 ml of ACS-II (manufactured by GE Healthcare (formerly Amersham Biosciences)). Receptor binding-derived radioactivity remaining on the filter paper was measured using a liquid scintillation counter. |
| Affinity data for this assay | |
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