title: An iodinated ligand identifying the D-1 dopamine receptor.
abstract: Iodination (with 125I) of SKF 83692 (2,3,4,5-tetrahydro-3-methyl-5-phenyl-1H-3-benzazepin-7-ol) produces a ligand of high specific activity. In the caudate nucleus of rat brain, this ligand binds to a site which discriminates between the active and inactive enantiomers of drugs selective for the D-1 receptor but which does not recognize drugs selective for the D-2 dopamine receptor or a serotonin receptor. Non-specific binding of this ligand is less than 5% of the total binding.
authors.forename: A
authors.initials: A
authors.lastname: Sidhu
authors.forename: J W
authors.initials: JW
authors.lastname: Kebabian
mesh_terms: D015647:2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine; D000818:Animals; D001552:Benzazepines / Q000031:analogs & derivatives*; D002421:Caudate Nucleus / Q000378:metabolism; D066298:In Vitro Techniques; D007457:Iodine Radioisotopes; D008024:Ligands; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D011954:Receptors, Dopamine / Q000032:analysis*; D017447:Receptors, Dopamine D1; D013237:Stereoisomerism
chemical_list: D001552:Benzazepines; D007457:Iodine Radioisotopes; D008024:Ligands; D011954:Receptors, Dopamine; D017447:Receptors, Dopamine D1; D015647:2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine; C046765:1-phenyl-3-methyl-8-hydroxy-2,3,4,5-tetrahydro-1H-3-benzazepine