Cited by 273Neuroscience and Neuropharmacology ResearchCellular transport and secretionReceptor Mechanisms and Signaling

Postsynaptic Positioning of Endocytic Zones and AMPA Receptor Cycling by Physical Coupling of Dynamin-3 to Homer

Open access
Lu, Jiuyi, Helton, Thomas D., Blanpied, Thomas A., Rácz, Bence, Newpher, Thomas M., Weinberg, Richard J., Ehlers, Michael D.·2007·Neuron

Abstract

Endocytosis of AMPA receptors and other postsynaptic cargo occurs at endocytic zones (EZs), stably positioned sites of clathrin adjacent to the postsynaptic density (PSD). The tight localization of postsynaptic endocytosis is thought to control spine composition and regulate synaptic transmission. However, the mechanisms that situate the EZ near the PSD and the role of spine endocytosis in synaptic transmission are unknown. Here, we report that a physical link between dynamin-3 and the postsynaptic adaptor Homer positions the EZ near the PSD. Disruption of dynamin-3 or its interaction with Homer uncouples the PSD from the EZ, resulting in synapses lacking postsynaptic clathrin. Loss of the EZ leads to a loss of synaptic AMPA receptors and reduced excitatory synaptic transmission that corresponds with impaired synaptic recycling. Thus, a physical link between the PSD and the EZ ensures localized endocytosis and recycling by recapturing and maintaining a proximate pool of cycling AMPA receptors.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.neuron.2007.06.041

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • DNM3 participates in the morphogenesis of the postsynaptic density and excitatory synaptic transmission.

    “DNM3 participates in the morphogenesis of the postsynaptic density and excitatory synaptic transmission24”

    From Locus for severity implicates CNS resilience in progression of multiple sclerosis (2023) · cites this paper as [24]

    The section “The Endocytic Zone Sustains Excitatory Synaptic Transmission” (p. 9) reports that dynamin-3 knockdown reduces excitatory postsynaptic currents, supporting its role in excitatory transmission. The paper shows dynamin-3 positions the endocytic zone near the postsynaptic density (p. 3), but does not establish a role in morphogenesis of the postsynaptic density itself. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Lu, J., Helton, T. D., Blanpied, T. A., Rácz, B., Newpher, T. M., Weinberg, R. J., & Ehlers, M. D.
Affiliations
  • Duke Medical Center (US)
  • University of North Carolina at Chapel Hill (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Ehlers, Michael D.
Venue
Neuron
Publisher
Elsevier BV
Published
2007-09
Volume
55
Issue
6
Pages
874-889
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1997282555
Cited by
273
References
51
Citations by year
2026: 8 · 2025: 5 · 2024: 10 · 2023: 8 · 2022: 10 · 2021: 11 · 2020: 13 · 2019: 10 · 2018: 19 · 2017: 11 · 2016: 8 · 2015: 16 · 2014: 15 · 2013: 21 · 2012: 18
FWCI
8.23
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
DNM3, Homer, postsynaptic density, clathrin, synaptic transmission, dendritic spine morphology, excitatory synapses, receptor recycling, protein-protein interaction
MeSH terms
Homer Scaffolding Proteins, Animals, Carrier Proteins, Clathrin, DNA, Electrophysiology, Humans, Immunohistochemistry, Microscopy, Electron, Synaptic Transmission, Neurons, Receptors, AMPA, Patch-Clamp Techniques, Microscopy, Confocal, GTP Phosphohydrolases, Transport Vesicles, Dynamin III, RNA Interference, Lipid Metabolism

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