Evidence map›Paper›PMID 21673672›Full record

ArticleNature communications2011

Molecular basis for class Ib anti-arrhythmic inhibition of cardiac sodium channels.

Stephan A Pless, Jason D Galpin, Adam Frankel, Christopher A Ahern

Abstract read
PubMed Publisher
In one paragraph

Article in Nature communications, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
–field-weighted citation impact
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

62 citing papers in PubMed.

  1. Late IMedicinal research reviews · 2026
    Review
  2. Chemical tuning reveals a cation-π gating bridge between the voltage-sensor and pore domains in the KProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Protein 14-3-3 Influences the Response of the Cardiac Sodium Channel NaThe Journal of pharmacology and experimental therapeutics · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Structure-guided unlocking of NaNature communications · 2022
    Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Structural modeling of NaBiophysics reports · 2021
    Article

2 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.

Stephan A PlessDepartment of Anesthesiology, University of British Columbia, 2350 Health Science Mall, Vancouver, British Columbia, V6T 1Z3 Canada.
Jason D Galpin
Adam Frankel
Christopher A Ahern

Funding

Canadian Institutes of Health Research 56858Canadian Institutes of Health Research 79271
6 · The paper itself

Abstract

Cardiac sodium channels are established therapeutic targets for the management of inherited and acquired arrhythmias by class I anti-arrhythmic drugs (AADs). These drugs share a common target receptor bearing two highly conserved aromatic side chains, and are subdivided by the Vaughan-Williams classification system into classes Ia-c based on their distinct effects on the electrocardiogram. How can these drugs elicit distinct effects on the cardiac action potential by binding to a common receptor? Here we use fluorinated phenylalanine derivatives to test whether the electronegative surface potential of aromatic side chains contributes to inhibition by six class I AADs. Surprisingly, we find that class Ib AADs bind via a strong electrostatic cation-pi interaction, whereas class Ia and Ic AADs rely significantly less on this interaction. Our data shed new light on drug-target interactions underlying the inhibition of cardiac sodium channels by clinically relevant drugs and provide information for the directed design of AADs.

Indexed as

Models, MolecularAnti-Arrhythmia AgentsArrhythmias, CardiacCationsElectrophysiologyHumansMutagenesisNAV1.5 Voltage-Gated Sodium ChannelPatch-Clamp TechniquesPhenylalanineReceptors, DrugSodium Channel BlockersSodium ChannelsStatic ElectricityAnti-Arrhythmia AgentsCationsNAV1.5 Voltage-Gated Sodium ChannelPhenylalanineReceptors, DrugSCN5A protein, humanSodium Channel BlockersSodium Channels

Identifiers

PMID21673672

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.