title: L-[3H]Glutamate binds to kainate-, NMDA- and AMPA-sensitive binding sites: an autoradiographic analysis.
abstract: The anatomical distribution of L-[3H]glutamate binding sites was determined in the presence of various glutamate analogues using quantitative autoradiography. The binding of L-[3H]glutamate is accounted for by the presence of 3 distinct binding sites when measured in the absence of Ca2+, Cl- and Na+ ions. The anatomical distribution and pharmacological specificity of these binding sites correspond to that reported for the 3 excitatory amino acid binding sites selectively labelled by D-[3H]2-amino-5-phosphonopentanoate (D-[3H]AP5), [3H]kainate ([3H]KA) and [3H] alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid ([3H]AMPA) which are thought to be selective ligands for the N-methyl-D-aspartate (NMDA), KA and quisqualate (QA) receptors, respectively.
authors.forename: D T
authors.initials: DT
authors.lastname: Monaghan
authors.forename: D
authors.initials: D
authors.lastname: Yao
authors.forename: C W
authors.initials: CW
authors.lastname: Cotman
mesh_terms: D000818:Animals; D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000378:metabolism / Q000494:pharmacology; D001345:Autoradiography; D001665:Binding Sites / Q000187:drug effects; D001921:Brain / Q000033:anatomy & histology* / Q000378:metabolism; D001923:Brain Chemistry / Q000187:drug effects*; D005971:Glutamates / Q000378:metabolism*; D018698:Glutamic Acid; D007051:Ibotenic Acid / Q000031:analogs & derivatives / Q000378:metabolism / Q000494:pharmacology; D066298:In Vitro Techniques; D007608:Kainic Acid / Q000378:metabolism* / Q000494:pharmacology; D016202:N-Methylaspartate; D011759:Pyrrolidines / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D017470:Receptors, Glutamate; D017981:Receptors, Neurotransmitter / Q000032:analysis* / Q000187:drug effects; D018350:alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid
chemical_list: D005971:Glutamates; D011759:Pyrrolidines; D017470:Receptors, Glutamate; D017981:Receptors, Neurotransmitter; D007051:Ibotenic Acid; D001224:Aspartic Acid; D018698:Glutamic Acid; D016202:N-Methylaspartate; D018350:alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid; D007608:Kainic Acid