Evidence map›Paper›PMID 26170175›Full record

ArticleThe Journal of general physiology2015

A conserved structural mechanism of NMDA receptor inhibition: A comparison of ifenprodil and zinc.

Rita E Sirrieh, David M MacLean, Vasanthi Jayaraman

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 29 citations in OpenAlex.

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  13. Single-Molecule FRET Methods to Study Glutamate Receptors.Methods in molecular biology (Clifton, N.J.) · 2019
    Article
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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

3 authors.

Rita E SirriehDepartment of Biochemistry and Molecular Biology, Center for Membrane Biology, University of Texas Health Science Center, Houston, TX 77030.
David M MacLeanDepartment of Biochemistry and Molecular Biology, Center for Membrane Biology, University of Texas Health Science Center, Houston, TX 77030.
Vasanthi JayaramanDepartment of Biochemistry and Molecular Biology, Center for Membrane Biology, University of Texas Health Science Center, Houston, TX 77030 vasanthi.jayaraman@uth.tmc.edu.

Funding

HOUSTON AREA MOLECULAR BIOPHYSICS TRAINING PROGRAMT32GM008280 · NIGMS · RICE UNIVERSITY · PI WENSEL, THEODORE G · 1988 to 2023
$8.0M
Structure and Function of NMDA ReceptorsR01GM094246 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI JAYARAMAN, VASANTHI · 2011 to 2016
$2.0M
TARP modulation of AMPA receptorsR01GM113212 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI JAYARAMAN, VASANTHI · 2015 to 2017
$897k
NIGMS NIH HHS 1R01GM113212-01NIGMS NIH HHS NIH-2T32GM008280NIGMS NIH HHS R01GM094245-01A1NIGMS NIH HHS R01 GM094246NIGMS NIH HHS R01 GM113212NIGMS NIH HHS T32 GM008280
6 · The paper itself

Abstract

N-methyl-D-aspartate (NMDA) receptors, one of the three main types of ionotropic glutamate receptors (iGluRs), are involved in excitatory synaptic transmission, and their dysfunction is implicated in various neurological disorders. NMDA receptors, heterotetramers typically composed of GluN1 and GluN2 subunits, are the only members of the iGluR family that bind allosteric modulators at their amino-terminal domains (ATDs). We used luminescence resonance energy transfer to characterize the conformational changes the receptor undergoes upon binding ifenprodil, a synthetic compound that specifically inhibits activation of NMDA receptors containing GluN2B. We found that ifenprodil induced an overall closure of the GluN2B ATD without affecting conformation of the GluN1 ATD or the upper lobes of the ATDs, the same mechanism whereby zinc inhibits GluN2A. These data demonstrate that the conformational changes induced by zinc and ifenprodil represent a conserved mechanism of NMDA receptor inhibition. Additionally, we compared the structural mechanism of zinc inhibition of GluN1-GluN2A receptors to that of ifenprodil inhibition of GluN1-GluN2B. The similarities in the conformational changes induced by inhibitor binding suggest a conserved structural mechanism of inhibition independent of the binding site of the modulator.

Indexed as

Amino Acid SequenceAnimalsBinding SitesCHO CellsCricetinaeCricetulusMolecular Sequence DataPiperidinesProtein BindingReceptors, N-Methyl-D-AspartateZincifenprodilPiperidinesReceptors, N-Methyl-D-AspartateZinc

Identifiers

PMID26170175
PMCPMC4516779
OpenAlexW2276585871

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.