Abstract
Four cloned cDNAs encoding 900-amino acid putative glutamate receptors with approximately 70 percent sequence identity were isolated from a rat brain cDNA library. In situ hybridization revealed differential expression patterns of the cognate mRNAs throughout the brain. Functional expression of the cDNAs in cultured mammalian cells generated receptors displaying alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA)-selective binding pharmacology (AMPA = quisqualate greater than glutamate greater than kainate) as well as cation channels gated by glutamate, AMPA, and kainate and blocked by 6,7-dinitroquinoxaline-2,3-dione (CNQX).
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Amino Acid Sequence
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Animals
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Base Sequence
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Brain / metabolism*
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Brain / physiology
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Glutamates / metabolism
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Glutamates / pharmacology
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Ibotenic Acid / analogs & derivatives
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Ibotenic Acid / pharmacology*
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Kainic Acid / pharmacology
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Kinetics
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Molecular Sequence Data
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Multigene Family*
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Oligonucleotide Probes
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Organ Specificity
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Oxadiazoles / pharmacology
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Oxazoles / pharmacology*
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Quisqualic Acid
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RNA, Messenger / analysis
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RNA, Messenger / genetics
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Rats
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Receptors, Glutamate
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Receptors, Neurotransmitter / drug effects
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Receptors, Neurotransmitter / genetics*
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Receptors, Neurotransmitter / physiology
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Sequence Homology, Nucleic Acid
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alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid
Substances
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Glutamates
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Oligonucleotide Probes
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Oxadiazoles
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Oxazoles
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RNA, Messenger
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Receptors, Glutamate
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Receptors, Neurotransmitter
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Ibotenic Acid
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alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid
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Quisqualic Acid
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Kainic Acid
Associated data
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GENBANK/M36418
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GENBANK/M36419
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GENBANK/M36420
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GENBANK/M36421