Evidence map›Paper›PMID 25143115›Full record

ArticleNature2014

X-ray structures of GluCl in apo states reveal a gating mechanism of Cys-loop receptors.

Thorsten Althoff, Ryan E Hibbs, Surajit Banerjee, Eric Gouaux

Abstract read
In one paragraph

Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 139 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
139citing papers in PubMed, 1 pooled it
17.1field-weighted citation impact, top 1% 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

139 citing papers in PubMed, 1 synthesis or guideline pooled it, 249 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Asymmetric gating of a homopentameric ion channel GLIC revealed by cryo-EM.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Biomolecules · 2023
    Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

79 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

4 authors at 3 institutions in 1 country.

Thorsten Althoff1] Vollum Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA [2] Department of Physiology, David Geffen School of Medicine, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, California 90095-1751, USA (T.A.); Department of Neuroscience, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, Texas 75390-9111, USA (R.E.H.). [3].
Ryan E Hibbs1] Vollum Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA [2] Department of Physiology, David Geffen School of Medicine, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, California 90095-1751, USA (T.A.); Department of Neuroscience, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, Texas 75390-9111, USA (R.E.H.). [3].
Surajit BanerjeeNE-CAT/Cornell University, 9700 South Cass Avenue, Building 436 E001, Argonne, Illinois 60439, USA.
Eric Gouaux1] Vollum Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA [2] Howard Hughes Medical Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA.
Oregon Health & Science University · USArgonne National Laboratory · USVollum Institute · US

Funding

Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Structural biology of neurotransmitter ion channelsR01GM100400 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI GOUAUX, JAMES E · 2012 to 2020
$2.3M
3D Structure and Function of the Cys-loop Family of Ligand-gated Ion ChannelsF32NS061404 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI HIBBS, RYAN E · 2008 to 2010
$149k
Howard Hughes Medical InstituteNIGMS NIH HHS P41 GM103403NIGMS NIH HHS R01 GM100400NINDS NIH HHS F32 NS061404NINDS NIH HHS F32NS061404
6 · The paper itself

Abstract

Cys-loop receptors are neurotransmitter-gated ion channels that are essential mediators of fast chemical neurotransmission and are associated with a large number of neurological diseases and disorders, as well as parasitic infections. Members of this ion channel superfamily mediate excitatory or inhibitory neurotransmission depending on their ligand and ion selectivity. Structural information for Cys-loop receptors comes from several sources including electron microscopic studies of the nicotinic acetylcholine receptor, high-resolution X-ray structures of extracellular domains and X-ray structures of bacterial orthologues. In 2011 our group published structures of the Caenorhabditis elegans glutamate-gated chloride channel (GluCl) in complex with the allosteric partial agonist ivermectin, which provided insights into the structure of a possibly open state of a eukaryotic Cys-loop receptor, the basis for anion selectivity and channel block, and the mechanism by which ivermectin and related molecules stabilize the open state and potentiate neurotransmitter binding. However, there remain unanswered questions about the mechanism of channel opening and closing, the location and nature of the shut ion channel gate, the transitions between the closed/resting, open/activated and closed/desensitized states, and the mechanism by which conformational changes are coupled between the extracellular, orthosteric agonist binding domain and the transmembrane, ion channel domain. Here we present two conformationally distinct structures of C. elegans GluCl in the absence of ivermectin. Structural comparisons reveal a quaternary activation mechanism arising from rigid-body movements between the extracellular and transmembrane domains and a mechanism for modulation of the receptor by phospholipids.

Indexed as

Allosteric RegulationAnimalsApoproteinsBinding, CompetitiveBinding SitesCaenorhabditis elegansCell MembraneChloride ChannelsCrystallography, X-RayCysteine Loop Ligand-Gated Ion Channel ReceptorsDrug Partial AgonismGlutamic AcidIon Channel GatingIvermectinLigandsModels, Molecular1-palmitoyl-2-oleoylphosphatidylcholineApoproteinsChloride ChannelsCysteine Loop Ligand-Gated Ion Channel Receptorsglutamate-gated chloride channelsGlutamic AcidIvermectinLigandsPhosphatidylcholines

Identifiers

PMID25143115
PMCPMC4255919
OpenAlexW2058571413

What OpenQuestion holds

Textmetadata
LicenceTDM
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.