Evidence map›Paper›PMID 20371315›Full record

ArticleBiophysical journal2010

Stationary gating of GluN1/GluN2B receptors in intact membrane patches.

Stacy A Amico-Ruvio, Gabriela K Popescu

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

46 citing papers in PubMed, 62 citations in OpenAlex.

  1. The positive allosteric modulator GNE-9278 increases gating, conductance, and CaNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  2. Article
  3. Structural insights into NMDA receptor pharmacology.Biochemical Society transactions · 2023
    Review
  4. Article
  5. Membrane Stretch Gates NMDA Receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  6. Review
  7. Article
  8. Palmitoylation Controls NMDA Receptor Function and Steroid Sensitivity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  9. Article
  10. Hydroxynorketamine BlocksMolecular pharmacology · 2020
    Article
  11. Article
  12. Article
  13. CaBiophysical journal · 2020
    Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  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.

Stacy A Amico-RuvioDepartment of Biochemistry, State University of New York at Buffalo, Buffalo, New York, USA.
Gabriela K Popescu
University at Buffalo, State University of New York · US

Funding

Probing allosteric surfaces of NMDA receptorsR01NS052669 · NINDS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI POPESCU, GABRIELA K · 2006 to 2015
$3.4M
NINDS NIH HHS NS052669NINDS NIH HHS R01 NS052669
6 · The paper itself

Abstract

NMDA receptors are heteromeric glutamate-gated channels composed of GluN1 and GluN2 subunits. Receptor isoforms that differ in their GluN2-subunit type (A-D) are expressed differentially throughout the central nervous system and have distinct kinetic properties in recombinant systems. How specific receptor isoforms contribute to the functions generally attributed to NMDA receptors remains unknown, due in part to the incomplete functional characterization of individual receptor types and unclear molecular composition of native receptors. We examined the stationary gating kinetics of individual rat recombinant GluN1/GluN2B receptors in cell-attached patches of transiently transfected HEK293 cells and used kinetic analyses and modeling to describe the full range of this receptor's gating behaviors. We found that, like GluN1/GluN2A receptors, GluN1/GluN2B receptors have three gating modes that are distinguishable by their mean open durations. However, for GluN1/GluN2B receptors, the modes also differed markedly in their mean closed durations and thus generated a broader range of open probabilities. We also found that regardless of gating mode, glutamate dissociation occurred approximately 4-fold more slowly (k(-) = 15 s(-1)) compared to that observed in GluN1/GluN2A receptors. On the basis of these results, we suggest that slow glutamate dissociation and modal gating underlie the long heterogeneous activations of GluN1/GluN2B receptors.

Indexed as

AlgorithmsAnimalsBiophysicsCell LineGlutamic AcidHumansKineticsLigandsProtein IsoformsRatsReceptors, N-Methyl-D-AspartateRecombinant ProteinsTime FactorsGlutamic AcidLigandsProtein IsoformsReceptors, N-Methyl-D-AspartateRecombinant Proteins

Identifiers

PMID20371315
PMCPMC2849062
OpenAlexW2075494942

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.