Cited by 1,260Neuroscience and Neuropharmacology ResearchNicotinic Acetylcholine Receptors StudyReceptor Mechanisms and Signaling

Relative abundance of subunit mRNAs determines gating and Ca2+ permeability of AMPA receptors in principal neurons and interneurons in rat CNS

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Geiger, J.R.P., Melcher, T., Koh, D.-S., Sakmann, B., Seeburg, P.H., Jonas, P., Monyer, H.·1995·Neuron

Abstract

Recording of glutamate-activated currents in membrane patches was combined with RT-PCR-mediated AMPA receptor (AMPAR) subunit mRNA analysis in single identified cells of rat brain slices. Analysis of AMPARs in principal neurons and interneurons of hippocampus and neocortex and in auditory relay neurons and Bergmann glial cells indicates that the GluR-B subunit in its flip version determines formation of receptors with relatively slow gating, whereas the GluR-D subunit promotes assembly of more rapidly gated receptors. The relation between Ca2+ permeability of AMPAR channels and the relative GluR-B mRNA abundance is consistent with the dominance of this subunit in determining the Ca2+ permeability of native receptors. The results suggest that differential expression of GluR-B and GluR-D subunit genes, as well as splicing and editing of their mRNAs, account for the differences in gating and Ca2+ permeability of native AMPAR channels.

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Crossref · 10.1016/0896-6273(95)90076-4

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42 of 42 references verified0 citation errors · 0 not checkable

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  • Most AMPARs in CA1 hippocampal pyramidal cells are tetraheteromeric assemblies of either GluA1/GluA2 or GluA2/GluA3 subunits, with a preponderance of GluA1/GluA2.

    “Most AMPARs in CA1 hippocampal pyramidal cells are tetraheteromeric assemblies of either GluA1/GluA2 subunits or GluA2/GluA3 subunits with a preponderance of GluA1/GluA2 subunits (264–266).”

    From Synaptic memory and CaMKII (2023) · cites this paper as [265]

  • Unlike mature hippocampal and cortical principal cells, which do not typically express GluA4, PV-containing interneurons possess a high level of GluA4 and a lower level of GluA2 subunit expression.

    “Unlike mature hippocampal and cortical principal cells, which do not typically express GluA4, PV-containing interneurons possess a high level of GluA4 and a lower level of GluA2 subunit expression (388, 630, 886, 1242).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [388]

  • GluA4 expression increases over the first two postnatal weeks to generate receptors comprised of GluA1/GluA4 heteromers by adulthood.

    “GluA4 expression increases over the first two postnatal weeks to generate receptors comprised of GluA1/GluA4 heteromers by adulthood (99, 388, 800, 886).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [388]

  • In situ hybridization and RT-PCR coupled with electrophysiological approaches revealed the presence of both inwardly rectifying, GluA2-lacking Ca2+-permeable (CP) AMPARs and GluA2-containing CI-AMPARs on inhibitory interneurons throughout the cortex and hippocampal formation.

    “In situ hybridization and RT-PCR coupled with electrophysiological approaches subsequently revealed the presence of both inwardly rectifying, GluA2-lacking Ca2+-permeable (CP) AMPARs and GluA2-containing CI-AMPARs on inhibitory interneurons throughout the cortex and hippocampal formation (11, 51, 107, 388, 539, 769, 960).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [388]

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Authors
Geiger, J. R. P., Melcher, T., Koh, D.-S., Sakmann, B., Seeburg, P. H., Jonas, P., & Monyer, H.
Affiliations
  • University of Freiburg (DE)
  • Max Planck Society (DE)
Venue
Neuron
Publisher
Elsevier BV
Published
1995-07
Volume
15
Issue
1
Pages
193-204
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2110534885
Cited by
1,260
References
42
Citations by year
2026: 18 · 2025: 27 · 2024: 23 · 2023: 42 · 2022: 29 · 2021: 35 · 2020: 29 · 2019: 23 · 2018: 34 · 2017: 34 · 2016: 30 · 2015: 29 · 2014: 50 · 2013: 29 · 2012: 36
FWCI
22.11
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • FreiDok plus (Universitätsbibliothek Freiburg) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
AMPA receptors, receptor gating, calcium permeability, hippocampus, neocortex, Bergmann glial cells, interneurons, principal neurons, alternative splicing, mRNA editing, subunit composition
MeSH terms
Animals, Auditory Pathways, Base Sequence, Calcium, Cell Membrane Permeability, Central Nervous System, Cerebellum, Hippocampus, Interneurons, Molecular Sequence Data, Neuroglia, Neurons, RNA, Messenger, Ion Channel Gating, Polymerase Chain Reaction, Rats, Wistar, Pyramidal Cells, Receptors, AMPA, Patch-Clamp Techniques, Rats

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