Improvement of 5-HT3 receptor binding assay: enhancement of specific [3H]quipazine binding with Triton X-100-treated membranes from rat cortex.

Abstract

The 5-hydroxytryptamine (5-HT)3 receptor binding assay using [3H]quipazine was examined. It was impossible to obtain specific [3H]quipazine binding with the membrane fractions from rat cortex prepared by the usual procedure. When the membranes were pretreated with detergent Triton X-100, the ratio of specific [3H]quipazine binding markedly increased… (More)

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