Evidence map›Paper›PMID 22375001›Full record

ArticleThe Journal of biological chemistry2012

Identification of N-methyl-D-aspartic acid (NMDA) receptor subtype-specific binding sites that mediate direct interactions with scaffold protein PSD-95.

Sarah L Cousins, F Anne Stephenson

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

30 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  11. Protein Kinase C-Mediated Phosphorylation and α2δ-1 Interdependently Regulate NMDA Receptor Trafficking and Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. MAGUKs: multifaceted synaptic organizers.Current opinion in neurobiology · 2017
    Review
  17. Article
  18. Review
  19. Article
  20. Article
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

2 authors at 1 institution in 1 country.

Sarah L CousinsUniversity College London School of Pharmacy, 29/39 Brunswick Square, London WC1N 1AX, United Kingdom.
F Anne Stephenson
University College London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/G003718/1
6 · The paper itself

Abstract

N-methyl-D-aspartate (NMDA) neurotransmitter receptors and the postsynaptic density-95 (PSD-95) membrane-associated guanylate kinase (MAGUK) family of scaffolding proteins are integral components of post-synaptic macromolecular signaling complexes that serve to propagate glutamate responses intracellularly. Classically, NMDA receptor NR2 subunits associate with PSD-95 MAGUKs via a conserved ES(E/D)V amino acid sequence located at their C termini. We previously challenged this dogma to demonstrate a second non-ES(E/D)V PSD-95-binding site in both NMDA receptor NR2A and NR2B subunits. Here, using a combination of co-immunoprecipitations from transfected mammalian cells, yeast two-hybrid interaction assays, and glutathione S-transferase (GST) pulldown assays, we show that NR2A subunits interact directly with PSD-95 via the C-terminal ESDV motif and additionally via an Src homology 3 domain-binding motif that associates with the Src homology 3 domain of PSD-95. Peptide inhibition of co-immunoprecipitations of NR2A and PSD-95 demonstrates that both the ESDV and non-ESDV sites are required for association in native brain tissue. Furthermore, we refine the non-ESDV site within NR2B to residues 1149-1157. These findings provide a molecular basis for the differential association of NMDA receptor subtypes with PSD-95 MAGUK scaffold proteins. These selective interactions may contribute to the organization, lateral mobility, and ultimately the function of NMDA receptor subtypes at synapses. Furthermore, they provide a more general molecular mechanism by which the scaffold, PSD-95, may discriminate between potential interacting partner proteins.

Indexed as

AnimalsBinding SitesDetergentsDisks Large Homolog 4 ProteinGlutathione TransferaseHEK293 CellsHumansImmunoprecipitationIntracellular Signaling Peptides and ProteinsMembrane ProteinsProtein Interaction Domains and MotifsProtein Structure, TertiaryRatsReceptors, N-Methyl-D-AspartateSaccharomyces cerevisiaesrc Homology DomainsDetergentsDisks Large Homolog 4 ProteinDlg4 protein, ratGlutathione TransferaseIntracellular Signaling Peptides and ProteinsMembrane ProteinsNR1 NMDA receptorNR2B NMDA receptorReceptors, N-Methyl-D-Aspartate

Identifiers

PMID22375001
PMCPMC3339998
OpenAlexW1983905405

What OpenQuestion holds

Textmetadata
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.