Evidence map›Paper›PMID 21338354›Full record

ArticleJournal of neurochemistry2011

Nedd4-mediated AMPA receptor ubiquitination regulates receptor turnover and trafficking.

Amy Lin, Qingming Hou, Larissa Jarzylo, Steve Amato, James Gilbert, Fu Shang, Heng-Ye Man

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

112 citing papers in PubMed, 1 synthesis or guideline pooled it, 161 citations in OpenAlex.

  1. Pooled it
  2. ESCRT-0 regulates AMPA receptor currents and CabioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. Article
  5. Changes in nucleus accumbens core translatome accompanying incubation of cocaine craving.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Molecular Mechanisms of AMPA Receptor Trafficking in the Nervous System.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Ubiquitination of the GluA1 Subunit of AMPA Receptors Is Required for Synaptic Plasticity, Memory, and Cognitive Flexibility.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  17. Article
  18. Article
  19. The Roles ofGenes · 2022
    Review
  20. Article

52 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Amy LinDepartment of Biology, Boston University, Boston, Massachusetts, USA.
Qingming Hou
Larissa Jarzylo
Steve Amato
James Gilbert
Fu Shang
Heng-Ye Man
Boston University · USTufts University · US

Funding

Molecular Mechanisms of Homeostatic Synaptic PlasticityR01MH079407 · NIMH · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI MAN, HENGYE · 2008 to 2018
$3.9M
NIMH NIH HHS MH079407NIMH NIH HHS R01 MH079407
6 · The paper itself

Abstract

α-Amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid receptors (AMPARs) are the primary mediators of excitatory synaptic transmission in the brain. Alterations in AMPAR localization and turnover have been considered critical mechanisms underpinning synaptic plasticity and higher brain functions, but the molecular processes that control AMPAR trafficking and stability are still not fully understood. Here, we report that mammalian AMPARs are subject to ubiquitination in neurons and in transfected heterologous cells. Ubiquitination facilitates AMPAR endocytosis, leading to a reduction in AMPAR cell-surface localization and total receptor abundance. Mutation of lysine residues to arginine residues at the glutamate receptor subunit 1 (GluA1) C-terminus dramatically reduces GluA1 ubiquitination and abolishes ubiquitin-dependent GluA1 internalization and degradation, indicating that the lysine residues, particularly K868, are sites of ubiquitination. We also find that the E3 ligase neural precursor cell expressed, developmentally down-regulated 4 (Nedd4) is enriched in synaptosomes and co-localizes and associates with AMPARs in neurons. Nedd4 expression leads to AMPAR ubiquitination, leading to reduced AMPAR surface expression and suppressed excitatory synaptic transmission. Conversely, knockdown of Nedd4 by specific siRNAs abolishes AMPAR ubiquitination. These data indicate that Nedd4 is the E3 ubiquitin ligase responsible for AMPAR ubiquitination, a modification that regulates multiple aspects of AMPAR molecular biology including trafficking, localization and stability.

Indexed as

AnimalsBlotting, WesternElectrophysiological PhenomenaEndosomal Sorting Complexes Required for TransportExcitatory Postsynaptic PotentialsFemaleHumansImmunoprecipitationLysineNedd4 Ubiquitin Protein LigasesNeural Stem CellsNeuronsPatch-Clamp TechniquesPregnancyProteasome Endopeptidase ComplexRatsEndosomal Sorting Complexes Required for TransportLysineNEDD4L protein, ratNedd4 protein, humanNedd4 protein, ratNedd4 Ubiquitin Protein LigasesProteasome Endopeptidase ComplexReceptors, AMPAReceptors, Cell SurfaceUbiquitin-Protein Ligases

Identifiers

PMID21338354
PMCPMC3110981
OpenAlexW1595234035

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.