Evidence map›Paper›PMID 20543828›Full record

ArticleNature structural & molecular biology2010

An aqueous H+ permeation pathway in the voltage-gated proton channel Hv1.

I Scott Ramsey, Younes Mokrab, Ingrid Carvacho, Zara A Sands, Mark S P Sansom, David E Clapham

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

109 citing papers in PubMed, 169 citations in OpenAlex.

  1. Article
  2. Soluble adenylyl cyclase in nonmammalian sperm is directly controlled by pH, not by HCOProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Modulators of the Human Voltage-Gated Proton Channel HPharmaceuticals (Basel, Switzerland) · 2025
    Review
  5. Article
  6. Fluctuating hydrogen-bond network of the Hv1 ion channel.Computational and structural biotechnology journal · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Quantitative insights into the mechanism of proton conduction and selectivity for the human voltage-gated proton channel Hv1.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Transcendent Aspects of Proton Channels.Annual review of physiology · 2024
    Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. The Voltage-Gated Hv1 HInternational journal of molecular sciences · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Review

49 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

6 authors at 3 institutions in 2 countries.

I Scott Ramsey *Howard Hughes Medical Institute, Department of Cardiology and Manton Center for Orphan Disease, Children's Hospital Boston, Boston, Massachusetts, USA.
Younes Mokrab *Department of Biochemistry, University of Oxford, Oxford, UK.
Ingrid Carvacho *Howard Hughes Medical Institute, Department of Cardiology and Manton Center for Orphan Disease, Children's Hospital Boston, Boston, Massachusetts, USA.
Zara A SandsDepartment of Biochemistry, University of Oxford, Oxford, UK.
Mark S P SansomDepartment of Biochemistry, University of Oxford, Oxford, UK.
David E ClaphamHoward Hughes Medical Institute, Department of Cardiology and Manton Center for Orphan Disease, Children's Hospital Boston, Boston, Massachusetts, USA.
University of Oxford · GBHoward Hughes Medical Institute · USHarvard University · US

Funding

SYNAPTIC MECHANISMS IN HIPPOCAMPAL EPILEPTOGENESISP30HD018655 · NICHD · CHILDREN'S HOSPITAL BOSTON · PI POMEROY, SCOTT LOREN · 1985 to 2015
$26.2M
Biotechnology and Biological Sciences Research CouncilHoward Hughes Medical InstituteNICHD NIH HHS P30 HD018655NICHD NIH HHS P30-HD18655Wellcome Trust
6 · The paper itself

Abstract

Hv1 voltage-gated proton channels mediate rapid and selective transmembrane H(+) flux and are gated by both voltage and pH gradients. Selective H(+) transfer in membrane proteins is commonly achieved by Grotthuss proton 'hopping' in chains of ionizable amino acid side chains and intraprotein water molecules. To identify whether ionizable residues are required for proton permeation in Hv1, we neutralized candidate residues and measured expressed voltage-gated H(+) currents. Unexpectedly, charge neutralization was insufficient to abrogate either the Hv1 conductance or coupling of pH gradient and voltage-dependent activation. Molecular dynamics simulations revealed water molecules in the central crevice of Hv1 model structures but not in homologous voltage-sensor domain (VSD) structures. Our results indicate that Hv1 most likely forms an internal water wire for selective proton transfer and that interactions between water molecules and S4 arginines may underlie coupling between voltage- and pH-gradient sensing.

Indexed as

Amino Acid SequenceAnimalsCell LineHumansIon ChannelsMiceMolecular Dynamics SimulationMolecular Sequence DataMutationProtein ConformationProtonsSequence AlignmentWaterHVCN1 protein, humanIon ChannelsProtonsWater

Identifiers

PMID20543828
PMCPMC4035905
OpenAlexW2044921719

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.