Evidence map›Paper›PMID 26333338›Full record

ArticleNature communications2015

Atomic basis for therapeutic activation of neuronal potassium channels.

Robin Y Kim, Michael C Yau, Jason D Galpin, Guiscard Seebohm, Christopher A Ahern, Stephan A Pless, Harley T Kurata

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

54 citing papers in PubMed, 90 citations in OpenAlex.

  1. Voltage-sensor conformational microenvironments encode isoform-selective ion channel activation.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  9. KJournal of pain research · 2024
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  16. Triclosan is a KCNQ3 potassium channel activator.Pflugers Archiv : European journal of physiology · 2022
    Article
  17. KCNQ Potassium Channels as Targets of Botanical Folk Medicines.Annual review of pharmacology and toxicology · 2022
    Review
  18. Article
  19. PIPCommunications biology · 2021
    Article
  20. The Amyloid Precursor Protein C99 Fragment Modulates Voltage-Gated Potassium Channels.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2021
    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

7 authors at 4 institutions in 4 countries.

Robin Y KimDepartment of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, 2176 Health Sciences Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Michael C YauDepartment of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, 2176 Health Sciences Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Jason D GalpinDepartment of Molecular Physiology and Biophysics, University of Iowa, 285 Newton Road, Iowa City, Iowa 52242, USA.
Guiscard SeebohmDepartment of Cardiovascular Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1 (Gebäude D3), D-48149 Münster, Germany.
Christopher A AhernDepartment of Molecular Physiology and Biophysics, University of Iowa, 285 Newton Road, Iowa City, Iowa 52242, USA.
Stephan A PlessDepartment of Drug Design and Pharmacology (Center for Biopharmaceuticals), University of Copenhagen, Jagtvej 160, DK-2100 Copenhagen, Denmark.
Harley T KurataDepartment of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, 2176 Health Sciences Mall, Vancouver, British Columbia, Canada V6T 1Z3.ORCID http://orcid.org/0000-0003-4357-4189
University of British Columbia · CAUniversity of Iowa · USUniversity Hospital Münster · DEUniversity of Copenhagen · DK

Funding

Synthetic Antigen Binder CoreU54GM087519 · NIGMS · UNIVERSITY OF CHICAGO · PI ZHOU, MING · 2010 to 2017
$31.9M
Chemical Biology of Voltage-Gated Sodium and Potassium ChannelsR01GM106569 · NIGMS · UNIVERSITY OF IOWA · PI AHERN, CHRISTOPHER A · 2013 to 2022
$2.7M
Canadian Institutes of Health Research MOP-97988NIGMS NIH HHS GM087519NIGMS NIH HHS GM106569NIGMS NIH HHS R01 GM106569NIGMS NIH HHS U54 GM087519
6 · The paper itself

Abstract

Retigabine is a recently approved anticonvulsant that acts by potentiating neuronal M-current generated by KCNQ2-5 channels, interacting with a conserved Trp residue in the channel pore domain. Using unnatural amino-acid mutagenesis, we subtly altered the properties of this Trp to reveal specific chemical interactions required for retigabine action. Introduction of a non-natural isosteric H-bond-deficient Trp analogue abolishes channel potentiation, indicating that retigabine effects rely strongly on formation of a H-bond with the conserved pore Trp. Supporting this model, substitution with fluorinated Trp analogues, with increased H-bonding propensity, strengthens retigabine potency. In addition, potency of numerous retigabine analogues correlates with the negative electrostatic surface potential of a carbonyl/carbamate oxygen atom present in most KCNQ activators. These findings functionally pinpoint an atomic-scale interaction essential for effects of retigabine and provide stringent constraints that may guide rational improvement of the emerging drug class of KCNQ channel activators.

Indexed as

AnimalsAnticonvulsantsCarbamatesFluorineHumansHydrogen BondingKCNQ2 Potassium ChannelKCNQ3 Potassium ChannelKCNQ Potassium ChannelsMolecular Docking SimulationMutagenesis, Site-DirectedNeuronsOocytesPatch-Clamp TechniquesPhenylenediaminesTryptophanAnticonvulsantsCarbamatesezogabineFluorineKCNQ2 Potassium ChannelKCNQ2 protein, humanKCNQ3 Potassium ChannelKCNQ3 protein, humanKCNQ Potassium ChannelsPhenylenediaminesTryptophan

Identifiers

PMID26333338
PMCPMC4561856
OpenAlexW1208303706

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.