Evidence map›Paper›PMID 17962328›Full record

ArticleThe Journal of physiology2008

Modulation of glycine potency in rat recombinant NMDA receptors containing chimeric NR2A/2D subunits expressed in Xenopus laevis oocytes.

Philip E Chen, Matthew T Geballe, Elyse Katz, Kevin Erreger, Matthew R Livesey, Kate K O'Toole, Phuong Le, C Justin Lee, James P Snyder, Stephen F Traynelis and 1 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

61 citing papers in PubMed, 99 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. A Frameshift Variant of GluN2A Identified in an Epilepsy Patient Results in NMDA Receptor Mistargeting.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  8. Therapeutic potential of N-methyl-D-aspartate receptor modulators in psychiatry.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  9. Potential Roles for the GluN2D NMDA Receptor Subunit in Schizophrenia.International journal of molecular sciences · 2023
    Review
  10. Derivatives of (Journal of medicinal chemistry · 2022
    Article
  11. Discovery of (Frontiers in chemistry · 2022
    Article
  12. Review
  13. Article
  14. Review
  15. Postsynaptic Serine Racemase Regulates NMDA Receptor Function.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  16. Article
  17. Discovery of Dihydropyrrolo[1,2-Journal of medicinal chemistry · 2020
    Article
  18. Article
  19. Article
  20. Article

1 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

11 authors at 2 institutions in 2 countries.

Philip E ChenCentre for Neuroscience Research, Hugh Robson Building, University of Edinburgh, George Square, Edinburgh, UK.
Matthew T Geballe
Elyse Katz
Kevin Erreger
Matthew R Livesey
Kate K O'Toole
Phuong Le
C Justin Lee
James P Snyder
Stephen F Traynelis
David J A Wyllie
Emory University · USUniversity of Edinburgh · GB

Funding

Control of Glutamate Receptor FunctionR01NS036654 · NINDS · EMORY UNIVERSITY · PI TRAYNELIS, STEPHEN F · 1998 to 2018
$3.7M
Control of glutamate receptor functionR37NS036654 · NINDS · EMORY UNIVERSITY · PI TRAYNELIS, STEPHEN F · 2007 to 2013
$2.4M
Biotechnology and Biological Sciences Research Council BB/D001978/1NINDS NIH HHS NS 36654NINDS NIH HHS R01 NS036654NINDS NIH HHS R37 NS036654
6 · The paper itself

Abstract

Heteromeric NMDARs are composed of coagonist glycine-binding NR1 subunits and glutamate-binding NR2 subunits. The majority of functional NMDARs in the mammalian central nervous system (CNS) contain two NR1 subunits and two NR2 subunits of which there are four types (A-D). We show that the potency of a variety of endogenous and synthetic glycine-site coagonists varies between recombinant NMDARs such that the highest potency is seen at NR2D-containing and the lowest at NR2A-containing NMDARs. This heterogeneity is specified by the particular NR2 subunit within the NMDAR complex since the glycine-binding NR1 subunit is common to all NMDARs investigated. To identify the molecular determinants responsible for this heterogeneity, we generated chimeric NR2A/2D subunits where we exchanged the S1 and S2 regions that form the ligand-binding domains and coexpressed these with NR1 subunits in Xenopus laevis oocytes. Glycine concentration-response curves for NMDARs containing NR2A subunits including the NR2D S1 region gave mean glycine EC(50) values similar to NR2A(WT)-containing NMDARs. However, receptors containing NR2A subunits including the NR2D S2 region or both NR2D S1 and S2 regions gave glycine potencies similar to those seen in NR2D(WT)-containing NMDARs. In particular, two residues in the S2 region of the NR2A subunit (Lys719 and Tyr735) when mutated to the corresponding residues found in the NR2D subunit influence glycine potency. We conclude that the variation in glycine potency is caused by interactions between the NR1 and NR2 ligand-binding domains that occur following agonist binding and which may be involved in the initial conformation changes that determine channel gating.

Indexed as

Amino Acid SequenceAnimalsChimeraDose-Response Relationship, DrugElectrophysiologyExcitatory Amino Acid AntagonistsFemaleGlycineKynurenic AcidMolecular Sequence DataOocytesPatch-Clamp TechniquesRatsReceptors, N-Methyl-D-AspartateRNA, ComplementaryXenopus laevis5,7-dichlorokynurenic acidExcitatory Amino Acid AntagonistsGlycineKynurenic AcidNR2A NMDA receptorNR2D NMDA receptorReceptors, N-Methyl-D-AspartateRNA, Complementary

Identifiers

PMID17962328
PMCPMC2375544
OpenAlexW2135766569

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.