Evidence map›Paper›PMID 34504015›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

A second S4 movement opens hyperpolarization-activated HCN channels.

Xiaoan Wu, Rosamary Ramentol, Marta E Perez, Sergei Yu Noskov, H Peter Larsson

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
  2. Extracellular salt bridge networks around S4 implicated in HCN channel gating and heart disease.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Fifty years of gating currents and channel gating.The Journal of general physiology · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Impaired Color Recognition inFrontiers in neurology · 2022
    Article
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 2 institutions in 2 countries.

Xiaoan WuDepartment of Physiology and Biophysics, University of Miami, Miami, FL 33136.ORCID 0000-0003-2098-7298
Rosamary RamentolDepartment of Physiology and Biophysics, University of Miami, Miami, FL 33136.
Marta E PerezDepartment of Physiology and Biophysics, University of Miami, Miami, FL 33136.
Sergei Yu NoskovDepartment of Biological Sciences, Centre for Molecular Simulation, University of Calgary, Calgary, AB T2N 1N4, Canada.ORCID 0000-0001-7769-335X
H Peter LarssonDepartment of Physiology and Biophysics, University of Miami, Miami, FL 33136; PLarsson@med.miami.edu.ORCID 0000-0002-1688-2525
University of Miami · USUniversity of Calgary · CA

Funding

Breakthrough Molecular Dynamics Research via an Anton2 SupercomputerR01GM116961 · NIGMS · CARNEGIE-MELLON UNIVERSITY · PI BLOOD, PHILIP D. · 2016 to 2023
$3.0M
Activation mechanism in HCN channels.R01GM139164 · NIGMS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI BARRO-SORIA, RENE · 2020 to 2023
$1.5M
NIGMS NIH HHS R01 GM116961NIGMS NIH HHS R01 GM139164
6 · The paper itself

Abstract

Rhythmic activity in pacemaker cells, as in the sino-atrial node in the heart, depends on the activation of hyperpolarization-activated cyclic nucleotide-gated (HCN) channels. As in depolarization-activated K

Indexed as

AnimalsBiological ClocksCyclic Nucleotide-Gated Cation ChannelsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsIon Channel GatingMembrane PotentialsPatch-Clamp TechniquesPotassium ChannelsSea UrchinsCyclic Nucleotide-Gated Cation ChannelsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsPotassium Channelsmolecular modelsS4 movementS4-to-gate couplingspHCNvoltage clamp fluorometry

Identifiers

PMID34504015
PMCPMC8449325
OpenAlexW3197892101

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.