Serotonin-5-O-carboxymethyl-glycyl[125I]tyrosinamide labels the 5-HT1D beta receptor subtype in human cortex.

M S Beer, D N Middlemiss

Merck Sharp and Dohme Research Laboratories, Neuroscience Research Centre, Harlow, Essex, UK.

European journal of pharmacology 1993 Sep 28

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This study, carried out in human cerebral cortical membranes, confirms previous findings in human substantia nigra that serotonin-5-O-carboxymethyl-glycyl[125I]tyrosinamide ([125I]GTI) labels a homogeneous population of recognition sites consistent with a 5-HT1D receptor pharmacology. In addition the results indicate that, under the assay conditions described, [125I]GTI specifically labels the 5-HT1D beta recognition site since ketanserin and ritanserin display a low affinity consistent with their activities at this subtype of the 5-HT1D receptor.

Citation

M S Beer, D N Middlemiss. Serotonin-5-O-carboxymethyl-glycyl[125I]tyrosinamide labels the 5-HT1D beta receptor subtype in human cortex. European journal of pharmacology. 1993 Sep 28;242(2):195-8