The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.
Ubiquitination Regulates PSD-95 Degradation and AMPA Receptor Surface Expression
Open accessAbstract
PSD-95 is a major scaffolding protein of the postsynaptic density, tethering NMDA- and AMPA-type glutamate receptors to signaling proteins and the neuronal cytoskeleton. Here we show that PSD-95 is regulated by the ubiquitin-proteasome pathway. PSD-95 interacts with and is ubiquitinated by the E3 ligase Mdm2. In response to NMDA receptor activation, PSD-95 is ubiquitinated and rapidly removed from synaptic sites by proteasome-dependent degradation. Mutations that block PSD-95 ubiquitination prevent NMDA-induced AMPA receptor endocytosis. Likewise, proteasome inhibitors prevent NMDA-induced AMPA receptor internalization and synaptically induced long-term depression. This is consistent with the notion that PSD-95 levels are an important determinant of AMPA receptor number at the synapse. These data suggest that ubiquitination of PSD-95 through an Mdm2-mediated pathway is critical in regulating AMPA receptor surface expression during synaptic plasticity.
Overview
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.
Integrity signals
Registry
Cites
Statistics
Verification
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.
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?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“GluA1 phosphorylation directly regulates trafficking, but there are other phosphatase substrates, including PSD-95 and Stargazin, that are also involved in synaptic AMPAR removal during LTD.”
From AKAP150-Anchored Calcineurin Regulates Synaptic Plasticity by Limiting Synaptic Incorporation of Ca2+-Permeable AMPA Receptors (2012) · cites this paper as Colledge et al., 2003
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“In particular, NMDA-cLTD activation of CaN and PP1/2A negatively regulates PSD-95 postsynaptic clustering and binding to Stargazin to promote AMPAR removal”
From AKAP150-Anchored Calcineurin Regulates Synaptic Plasticity by Limiting Synaptic Incorporation of Ca2+-Permeable AMPA Receptors (2012) · cites this paper as Colledge et al., 2003
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.
Citations
Cites
Calcineurin is a common target of cyclophilin-cyclosporin A and FKBP-FK506 complexes
Liu, J., Farmer, J. D., Lane, W. S., Friedman, J., Weissman, I., & Schreiber, S. L. (1991) · Cell · doi:10.1016/0092-8674(91)90124-h · Cited by 4,116
AMPA Receptor Trafficking and Synaptic Plasticity
Malinow, R., & Malenka, R. C. (2002) · Annual Review of Neuroscience · doi:10.1146/annurev.neuro.25.112701.142758 · Cited by 2,588
Oncoprotein MDM2 is a ubiquitin ligase E3 for tumor suppressor p53
Honda, R., Tanaka, H., & Yasuda, H. (1997) · FEBS Letters · doi:10.1016/s0014-5793(97)01480-4 · Cited by 1,951
PEST sequences and regulation by proteolysis
Rechsteiner, M., & Rogers, S. W. (1996) · Trends in Biochemical Sciences · doi:10.1016/s0968-0004(96)10031-1 · Cited by 1,707
Themes and variations on ubiquitylation
Weissman, A. M. (2001) · Nature Reviews Molecular Cell Biology · doi:10.1038/35056563 · Cited by 1,507
Rescue of early embryonic lethality in mdm2-deficient mice by deletion of p53
de Oca Luna, R. M., Wagner, D. S., & Lozano, G. (1995) · Nature · doi:10.1038/378203a0 · Cited by 1,420 · cited 2×
“We cotransfected from mice lacking Mdm2 (Montes de Oca Luna et al., 1995).”
Synaptic plasticity: LTP and LTD
Bear, M. F., & Malenka, R. C. (1994) · Current Opinion in Neurobiology · doi:10.1016/0959-4388(94)90101-5 · Cited by 1,355
Self-citationPSD-95 Involvement in Maturation of Excitatory Synapses
El-Husseini, A. E.-D., Schnell, E., Chetkovich, D. M., Nicoll, R. A., & Bredt, D. S. (2000) · Science · doi:10.1126/science.290.5495.1364 · Cited by 1,303
Migaud, M., Charlesworth, P., Dempster, M., Webster, L. C., Watabe, A. M., Makhinson, M., He, Y., Ramsay, M. F., Morris, R. G. M., Morrison, J. H., et al. (1998) · Nature · doi:10.1038/24790 · Cited by 1,160
Regulation of distinct AMPA receptor phosphorylation sites during bidirectional synaptic plasticity
Lee, H.-K., Barbarosie, M., Kameyama, K., Bear, M. F., & Huganir, R. L. (2000) · Nature · doi:10.1038/35016089 · Cited by 1,116
Self-citation
Cited by
Sorted by citations
Malenka, R. C., & Bear, M. F. (2004) · Neuron · doi:10.1016/j.neuron.2004.09.012 · Cited by 3,968
Self-citationSynaptic Plasticity: Multiple Forms, Functions, and Mechanisms
Citri, A., & Malenka, R. C. (2008) · Neuropsychopharmacology · doi:10.1038/sj.npp.1301559 · Cited by 2,323
PDZ domain proteins of synapses
Kim, E., & Sheng, M. (2004) · Nature reviews. Neuroscience · doi:10.1038/nrn1517 · Cited by 1,630
AKAP signalling complexes: focal points in space and time
Wong, W., & Scott, J. D. (2004) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm1527 · Cited by 1,073
Self-citationReceptor trafficking and synaptic plasticity
Collingridge, G. L., Isaac, J. T. R., & Wang, Y. T. (2004) · Nature Reviews Neuroscience · doi:10.1038/nrn1556 · Cited by 1,046
Metadata
- Authors
- Colledge, M., Snyder, E. M., Crozier, R. A., Soderling, J. A., Jin, Y., Langeberg, L. K., Lu, H., Bear, M. F., & Scott, J. D.
- Affiliations
- Howard Hughes Medical Institute (US)
- Oregon Health & Science University (US)
- Corresponding author
- Scott, John D.
- Venue
- Neuron
- Publisher
- Elsevier BV
- Published
- 2003-10
- Volume
- 40
- Issue
- 3
- Pages
- 595-607
- ISSN
- 0896-6273 (ISSN-L)
- PMC
- PMC3963808
- OpenAlex
- W2151538478
- Cited by
- 567
- References
- 65
- Citations by year
- 2026: 8 · 2025: 16 · 2024: 20 · 2023: 11 · 2022: 12 · 2021: 24 · 2020: 20 · 2019: 23 · 2018: 18 · 2017: 21 · 2016: 20 · 2015: 36 · 2014: 22 · 2013: 30 · 2012: 26
- FWCI
- 9.49
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Neuron (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of General Medical Sciences (R01GM048231, GM-48231, R37GM048231)
- National Institute of Neurological Disorders and Stroke (NS 39321, P01NS039321)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
- Keywords
- PSD-95, ubiquitination, MDM2, proteasomal degradation, AMPA receptors, receptor internalization, NMDA receptor activation, postsynaptic density, synaptic plasticity, long-term depression, glutamate receptors
- MeSH terms
- Disks Large Homolog 4 Protein, Acetylcysteine, Analysis of Variance, Animals, Animals, Newborn, Epitopes, Calcium, Cells, Cultured, Drug Interactions, Electric Stimulation, Embryo, Mammalian, Endocytosis, Colforsin, Hippocampus, Humans, Immunoglobulin G, Immunohistochemistry, Immunosuppressive Agents, Kidney, Leupeptins, Membrane Potentials, Membrane Proteins, Mutation, Nerve Tissue Proteins, Neural Inhibition, Neurons, Nuclear Proteins, Proto-Oncogene Proteins, Synapses, Time Factors, Transfection, Blotting, Western, Cysteine Proteinase Inhibitors, N-Methylaspartate, Tacrolimus, Synapsins, Receptors, AMPA, Patch-Clamp Techniques, Excitatory Amino Acid Agonists, Rats, Long-Evans, Ubiquitin, Intracellular Signaling Peptides and Proteins, Rats, Proto-Oncogene Proteins c-mdm2, In Vitro Techniques
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