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Molecular biology of the glutamate receptor channel. Masayoshi MISHINA 1 1Department of Neuropharmacology, Brain Research Institute, Niigata University pp.353-365
Published Date 1993/6/10
DOI https://doi.org/10.11477/mf.1431900333
  • Abstract
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 The glutamate receptor channel plays a key role in brain function. Most of the fast excitatory synaptic transmission is mediated by glutamate receptor channels in the central nervous system. Furthermore, glutamate receptor channels are essential for activity-dependent synaptic plasticity such as long-term potentiation and long-term depression, which are thought to underlie memory acquisition and learning. Evidence is accumulating that glutamate receptor channels are involved in experience-dependent synaptic plasticity during development and in degenerative brain disorders.

 We have identified more than a dozen subunits of the mouse glutamate receptor channel by molecular cloning. These glutamate receptor channel subunits possess four putative transmembrane segments characteristic for neurotransmitter-gated ion channels and have been classified into six subfamilies (α, β, γ, δ, ε and ζ subfamiles) according to the amino acid sequence homology. The members of the a subfamily constitute AMPA-selective glutamate receptor channels, whereas the β and γ subfamilies include the subunits of the kainate-selective glutamate receptor channel. The ε and ζ subfamilies represent the subunits of the NMDA receptor channel.


Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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