Cited by 234Neuroscience and Neuropharmacology ResearchNicotinic Acetylcholine Receptors StudyGenetics and Neurodevelopmental Disorders

Regulation of AMPA receptor surface diffusion by PSD-95 slots

Opazo, Patricio, Sainlos, Matthieu, Choquet, Daniel·2012·Current Opinion in Neurobiology

Abstract

Excitatory synaptic transmission is largely mediated by AMPA receptors (AMPARs) present at the postsynaptic density. Recent studies in single molecule tracking of AMPAR has revealed that extrasynaptic AMPARs are highly mobile and thus might serve as a readily available pool for their synaptic recruitment during synaptic plasticity events such as long-term potentiation (LTP). Because this hypothesis relies on the cell's ability to increase the number of diffusional traps or 'slots' at synapses during LTP, we will review a number of protein-protein interactions that might impact AMPARs lateral diffusion and thus potentially serve as slots. Recent studies have identified the interaction between the AMPAR-Stargazin complex and PSD-95 as the minimal components of the diffusional trapping slot. We will overview the molecular basis of this critical interaction, its activity-dependent regulation and its potential contribution to LTP.

Integrity signals

Registry

Crossref · 10.1016/j.conb.2011.10.010

Cites

98 of 98 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Delivery of AMPARs to synapses requires binding of TARPs via their PDZ binding motifs to PSD-95.

    “It is now well established that the delivery of AMPARs to synapses requires the binding of TARPs, via their PDZ binding motifs (PBMs), to PSD-95 (278, 279, 286, 289, 294).”

    From Synaptic memory and CaMKII (2023) · cites this paper as [286]

  • AMPARs are highly dynamic, undergoing continuous endocytosis, exocytosis, lateral diffusion, reversible trapping at PSD, and modifications in channel properties.

    “AMPARs are highly dynamic, undergoing continuous endocytosis, exocytosis, lateral diffusion in the plane of the membrane, reversible trapping at synapses at the post-synaptic density (PSD), and modifications in channel properties (Opazo et al., 2012, Huganir and Nicoll, 2013, Malinow and Malenka, 2002).”

    From The AMPA Receptor Code of Synaptic Plasticity (2018) · cites this paper as Opazo et al., 2012

  • Phosphorylation of the TARP C-terminus reduces interaction with membrane lipids and facilitates interaction with PSD95, serving to trap the TARP/AMPAR complex with the PSD.

    “Phosphorylation reduces the interaction with membrane lipids and facilitates interaction with PSD95, serving to trap the TARP/AMPAR complex with the PSD (Opazo et al., 2012, Bats et al., 2007, Sheng et al., 2018).”

    From The AMPA Receptor Code of Synaptic Plasticity (2018) · cites this paper as Opazo et al., 2012

  • The post-synaptic density contains 'slots' that might be occupied by AMPARs supplied by lateral diffusion from the peri-synaptic region.

    “A prominent model of synaptic strength posits that the post-synaptic density (PSD), a dense network of synaptic scaffolding, adhesion and cytoskeletal proteins, contains ‘slots’ that might be occupied by AMPARs supplied by lateral diffusion from the peri-synaptic region (Opazo et al., 2012, Huganir and Nicoll, 2013, Kessels and Malinow, 2009).”

    From The AMPA Receptor Code of Synaptic Plasticity (2018) · cites this paper as Opazo et al., 2012

  • In the plane of the plasma membrane, AMPARs are highly mobile but become trapped in PSD slots.

    “In the plane of the plasma membrane, AMPARs are highly mobile but become trapped in PSD slots (Opazo et al., 2012).”

    From The AMPA Receptor Code of Synaptic Plasticity (2018) · cites this paper as Opazo et al., 2012

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Opazo, P., Sainlos, M., & Choquet, D.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Choquet, Daniel
Venue
Current Opinion in Neurobiology
Publisher
Elsevier BV
Published
2012-06
Volume
22
Issue
3
Pages
453-460
ISSN
0959-4388 (ISSN-L)
OpenAlex
W1971924693
Cited by
234
References
98
Citations by year
2026: 10 · 2025: 10 · 2024: 11 · 2023: 12 · 2022: 18 · 2021: 27 · 2020: 13 · 2019: 11 · 2018: 19 · 2017: 17 · 2016: 18 · 2015: 16 · 2014: 25 · 2013: 19 · 2012: 8
FWCI
1.58
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
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 › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
AMPA receptors, PSD-95, stargazin, postsynaptic density, long-term potentiation, synaptic plasticity, protein-protein interaction, activity-dependent regulation
MeSH terms
Animals, Synaptic Transmission, Synapses, Long-Term Potentiation, Receptors, AMPA, Protein Transport, Intracellular Signaling Peptides and Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review