Evidence map›Paper›PMID 24850863›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Prokaryotic NavMs channel as a structural and functional model for eukaryotic sodium channel antagonism.

Claire Bagnéris, Paul G DeCaen, Claire E Naylor, David C Pryde, Irene Nobeli, David E Clapham, B A Wallace

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
8.0field-weighted citation impact, top 2% 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

80 citing papers in PubMed, 135 citations in OpenAlex.

  1. Article
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  3. Molecular docking andJournal of Taibah University Medical Sciences · 2025
    Review
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  10. Ion channel selectivity through ion-modulated changes of selectivity filter pProceedings of the National Academy of Sciences of the United States of America · 2023
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  15. Cannabidiol and Sodium Channel Pharmacology: General Overview, Mechanism, and Clinical Implications.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2022
    Review
  16. Article
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  20. Article

20 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

7 authors at 4 institutions in 2 countries.

Claire BagnérisInstitute of Structural and Molecular Biology, School of Biological Sciences, Birkbeck College, University of London, London WC1E 7HX, United Kingdom;
Paul G DeCaenHoward Hughes Medical Institute andDepartment of Cardiology, Children's Hospital Boston, Boston, MA 02115;Department of Neurobiology, Harvard Medical School, Boston, MA 02115; and.
Claire E NaylorInstitute of Structural and Molecular Biology, School of Biological Sciences, Birkbeck College, University of London, London WC1E 7HX, United Kingdom;
David C PrydePfizer Neusentis, Great Abington, Cambridge CB21 6GS, United Kingdom.
Irene NobeliInstitute of Structural and Molecular Biology, School of Biological Sciences, Birkbeck College, University of London, London WC1E 7HX, United Kingdom;
David E ClaphamHoward Hughes Medical Institute andDepartment of Cardiology, Children's Hospital Boston, Boston, MA 02115;Department of Neurobiology, Harvard Medical School, Boston, MA 02115; and dclapham@enders.tch.harvard.edu b.wallace@mail.cryst.bbk.ac.uk.
B A WallaceInstitute of Structural and Molecular Biology, School of Biological Sciences, Birkbeck College, University of London, London WC1E 7HX, United Kingdom; dclapham@enders.tch.harvard.edu b.wallace@mail.cryst.bbk.ac.uk.
Institute of Structural and Molecular Biology · GBBoston Children's Museum · USBirkbeck, University of London · GBPfizer (United Kingdom) · GB

Funding

SYNAPTIC MECHANISMS IN HIPPOCAMPAL EPILEPTOGENESISP30HD018655 · NICHD · CHILDREN'S HOSPITAL BOSTON · PI POMEROY, SCOTT LOREN · 1985 to 2015
$26.2M
RESEARCH METHODS IN PEDIATRICS HEART DISEASET32HL007572 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI Sarah D DE FERRANTI, Jane W. Newburger · 1985 to 2026
$13.0M
Biotechnology and Biological Sciences Research Council BB/H01070XBiotechnology and Biological Sciences Research Council BB/J020702Biotechnology and Biological Sciences Research Council BB/L006790NHLBI NIH HHS T32 HL007572NHLBI NIH HHS T32-HL007572NICHD NIH HHS P30 HD018655
6 · The paper itself

Abstract

Voltage-gated sodium channels are important targets for the development of pharmaceutical drugs, because mutations in different human sodium channel isoforms have causal relationships with a range of neurological and cardiovascular diseases. In this study, functional electrophysiological studies show that the prokaryotic sodium channel from Magnetococcus marinus (NavMs) binds and is inhibited by eukaryotic sodium channel blockers in a manner similar to the human Nav1.1 channel, despite millions of years of divergent evolution between the two types of channels. Crystal complexes of the NavMs pore with several brominated blocker compounds depict a common antagonist binding site in the cavity, adjacent to lipid-facing fenestrations proposed to be the portals for drug entry. In silico docking studies indicate the full extent of the blocker binding site, and electrophysiology studies of NavMs channels with mutations at adjacent residues validate the location. These results suggest that the NavMs channel can be a valuable tool for screening and rational design of human drugs.

Indexed as

AlphaproteobacteriaAmino Acid SequenceBacterial ProteinsBinding SitesCrystallography, X-RayHEK293 CellsHumansIon Channel GatingLamotrigineMembrane PotentialsModels, MolecularMolecular Sequence DataMutationNAV1.1 Voltage-Gated Sodium ChannelProtein Structure, TertiarySequence Homology, Amino AcidBacterial ProteinsLamotrigineNAV1.1 Voltage-Gated Sodium ChannelSCN1A protein, humanSodium Channel BlockersSodium ChannelsTriazinescrystal structurepharmacology

Identifiers

PMID24850863
PMCPMC4060673
OpenAlexW2055983112

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.