Evidence map›Paper›PMID 24507937›Full record

ArticleCell2014

X-ray structure of acid-sensing ion channel 1-snake toxin complex reveals open state of a Na(+)-selective channel.

Isabelle Baconguis, Christopher J Bohlen, April Goehring, David Julius, Eric Gouaux

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 175 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
175citing papers in PubMed, 2 pooled it
12.4field-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

175 citing papers in PubMed, 2 syntheses or guidelines pooled it, 306 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Conformational plasticity of human acid-sensing ion channel 1a.Nature structural & molecular biology · 2026
    Article
  5. Review
  6. Acid-sensing ion channel 2a assembles with epithelial NaThe Journal of biological chemistry · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. The Drosophila DEG/ENaC PPK12 is a NaScientific reports · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

115 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

5 authors at 3 institutions in 1 country.

Isabelle BaconguisVollum Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
Christopher J BohlenDepartment of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA.
April GoehringVollum Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
David JuliusDepartment of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA.
Eric GouauxVollum Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA; Howard Hughes Medical Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA. Electronic address: gouauxe@ohsu.edu.
Oregon Health & Science University · USUniversity of California, San Francisco · USHoward Hughes Medical Institute · US

Funding

3D Structure and Function of Ligand-Gated Ion ChannelsR37NS038631 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI James E Gouaux · 2009 to 2026
$4.1M
ASIC Channels and PainR01NS081115 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JULIUS, DAVID · 2012 to 2016
$1.9M
Exploiting toxins to probe sensory signalingR01NS065071 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JULIUS, DAVID · 2009 to 2012
$1.3M
3D Structure of Acid-sensing Ion Channel in the Open StateF31NS070597 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI BACONGUIS, ISABELLE RHYSSA JOE EDURIA · 2011 to 2012
$84k
Activation of the ion channel TRPV1 by peptide toxinsF31NS065597 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BOHLEN, CHRISTOPHER JOHN · 2009 to 2011
$79k
Howard Hughes Medical InstituteNINDS NIH HHS F31 NS065597NINDS NIH HHS F31 NS070597NINDS NIH HHS R01 NS065071NINDS NIH HHS R01 NS081115NINDS NIH HHS R37 NS038631
6 · The paper itself

Abstract

Acid-sensing ion channels (ASICs) detect extracellular protons produced during inflammation or ischemic injury and belong to the superfamily of degenerin/epithelial sodium channels. Here, we determine the cocrystal structure of chicken ASIC1a with MitTx, a pain-inducing toxin from the Texas coral snake, to define the structure of the open state of ASIC1a. In the MitTx-bound open state and in the previously determined low-pH desensitized state, TM2 is a discontinuous α helix in which the Gly-Ala-Ser selectivity filter adopts an extended, belt-like conformation, swapping the cytoplasmic one-third of TM2 with an adjacent subunit. Gly 443 residues of the selectivity filter provide a ring of three carbonyl oxygen atoms with a radius of ∼3.6 Å, presenting an energetic barrier for hydrated ions. The ASIC1a-MitTx complex illuminates the mechanism of MitTx action, defines the structure of the selectivity filter of voltage-independent, sodium-selective ion channels, and captures the open state of an ASIC.

Indexed as

ChickensElapidaeAcid Sensing Ion ChannelsAmino Acid SequenceAnimalsAvian ProteinsCrystallography, X-RayElapid VenomsModels, MolecularMolecular Sequence DataSequence AlignmentSodium ChannelsAcid Sensing Ion ChannelsAvian ProteinsElapid VenomsSodium Channels

Identifiers

PMID24507937
PMCPMC4190031
OpenAlexW1974548955

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.