Evidence map›Paper›PMID 34139217›Full record

ReviewJournal of molecular biology2021

Mapping Electromechanical Coupling Pathways in Voltage-Gated Ion Channels: Challenges and the Way Forward.

John Cowgill, Baron Chanda

Open access · hybridAbstract readReview
In one paragraph

Review in Journal of molecular biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Electric field-induced pore constriction in the human KProceedings of the National Academy of Sciences of the United States of America · 2025
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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

2 authors at 1 institution in 1 country.

John CowgillDepartment of Anesthesiology, Washington University, St. Louis, MO 63110, United States; Center for Investigations of Membrane Excitability Disorders (CIMED), Washington University, St. Louis, MO 63110, United States.
Baron ChandaDepartment of Anesthesiology, Washington University, St. Louis, MO 63110, United States; Center for Investigations of Membrane Excitability Disorders (CIMED), Washington University, St. Louis, MO 63110, United States. Electronic address: bchanda@wustl.edu.
Washington University in St. Louis · US

Funding

Biophysical mechanisms of gating and modulation in voltage-gated ion channel superfamilyR35NS116850 · NINDS · WASHINGTON UNIVERSITY · PI Baron Chanda · 2020 to 2026
$6.9M
Thermodynamics and Energetics of voltage-gated ion channelsR01NS081293 · NINDS · WASHINGTON UNIVERSITY · PI CHANDA, BARON · 2012 to 2019
$2.9M
Mechanisms of voltage- and ligand-activation in HCN channelsR01NS101723 · NINDS · WASHINGTON UNIVERSITY · PI CHANDA, BARON · 2017 to 2020
$2.0M
Synthetic design of an all-optical electrophysiology systemR21GM131662 · NIGMS · WASHINGTON UNIVERSITY · PI CHANDA, BARON, SCHOMAKER, JENNIFER MARIE · 2019 to 2020
$395k
NIGMS NIH HHS R21 GM131662NINDS NIH HHS R01 NS081293NINDS NIH HHS R01 NS101723NINDS NIH HHS R35 NS116850
6 · The paper itself

Abstract

Inter- and intra-molecular allosteric interactions underpin regulation of activity in a variety of biological macromolecules. In the voltage-gated ion channel superfamily, the conformational state of the voltage-sensing domain regulates the activity of the pore domain via such long-range allosteric interactions. Although the overall structure of these channels is conserved, allosteric interactions between voltage-sensor and pore varies quite dramatically between the members of this superfamily. Despite the progress in identifying key residues and structural interfaces involved in mediating electromechanical coupling, our understanding of the biophysical mechanisms remains limited. Emerging new structures of voltage-gated ion channels in various conformational states will provide a better three-dimensional view of the process but to conclusively establish a mechanism, we will also need to quantitate the energetic contribution of various structural elements to this process. Using rigorous unbiased metrics, we want to compare the efficiency of electromechanical coupling between various sub-families in order to gain a comprehensive understanding. Furthermore, quantitative understanding of the process will enable us to correctly parameterize computational approaches which will ultimately enable us to predict allosteric activation mechanisms from structures. In this review, we will outline the challenges and limitations of various experimental approaches to measure electromechanical coupling and highlight the best practices in the field.

Indexed as

Allosteric RegulationHumansIon Channel GatingIon ChannelsSignal TransductionIon ChannelsallosteryGIAkinetic analysislinkage analysisvoltage-sensing

Identifiers

PMID34139217
PMCPMC8579740
OpenAlexW3169157369

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.