Evidence map›Paper›PMID 32522694›Full record

ArticleHeart rhythm2020

High-throughput discovery of trafficking-deficient variants in the cardiac potassium channel K

Krystian A Kozek, Andrew M Glazer, Chai-Ann Ng, Daniel Blackwell, Christian L Egly, Loren R Vanags, Marcia Blair, Devyn Mitchell, Kenneth A Matreyek, Douglas M Fowler and 4 more

Open access · greenAbstract read
In one paragraph

Article in Heart rhythm, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

43 citing papers in PubMed, 63 citations in OpenAlex.

  1. MultimodalCirculation · 2026
    Article
  2. Deep mutational scan of the pore of the cold-sensing TRPM8 channel.bioRxiv : the preprint server for biology · 2026
    Article
  3. Review
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  10. Mapping the Functional Landscape ofmedRxiv : the preprint server for health sciences · 2025
    Article
  11. Article
  12. MaveMD: A functional data resource for genomic medicine.medRxiv : the preprint server for health sciences · 2025
    Article
  13. Article
  14. Long-QT Trafficking Map.Circulation · 2024
    Article
  15. Article
  16. Multiplexed Assays of Variant Effect and Automated Patch-clamping ImprovemedRxiv : the preprint server for health sciences · 2024
    Article
  17. Article
  18. Article
  19. Article
  20. 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

14 authors at 3 institutions in 2 countries.

Krystian A KozekVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Andrew M GlazerVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Chai-Ann NgMolecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia; St Vincent's Clinical School, UNSW Sydney, Darlinghurst, New South Wales, Australia.
Daniel BlackwellVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Christian L EglyVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Loren R VanagsVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Marcia BlairVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Devyn MitchellVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Kenneth A MatreyekDepartment of Genome Sciences, University of Washington, Seattle, Washington.
Douglas M FowlerDepartment of Genome Sciences, University of Washington, Seattle, Washington; Department of Bioengineering, University of Washington, Seattle, Washington.
Bjorn C KnollmannVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Jamie I VandenbergMolecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia; St Vincent's Clinical School, UNSW Sydney, Darlinghurst, New South Wales, Australia.
Dan M RodenVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
Brett M KronckeVanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee. Electronic address: brett.m.kroncke.1@vumc.org.
Vanderbilt University Medical Center · USUniversity of Washington · USVictor Chang Cardiac Research Institute · AU

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MATTHEW J TYSKA · 1995 to 2026
$172.8M
VANDERBILT UNIVERSITY CTSA FOR PEDIATRIC RESEARCHUL1RR024975 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$45.7M
Toward a Mechanism-Based Approach to Treating Cardiac ArrhythmiaR35HL144980 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KNOLLMANN, BJORN C · 2019 to 2025
$7.1M
Functional Genomics of Cardiac Sodium Channel VariantsR01HL149826 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RODEN, DAN M · 2020 to 2023
$2.9M
Large-Scale Methods for Assessing the Consequences of Mutations in ProteinsR01GM109110 · NIGMS · UNIVERSITY OF WASHINGTON · PI FOWLER, DOUGLAS M · 2014 to 2021
$2.4M
SCN5A (Nav1.5): Predicting the Consequence of Missense Single- Nucleotide Polymorphisms.R00HL135442 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KRONCKE, BRETT M · 2019 to 2021
$741k
Nanion SynchroPatch 384 for Automated, High-throughput ElectrophysiologyS10OD025281 · OD · VANDERBILT UNIVERSITY · PI WEAVER, C DAVID · 2018 to 2018
$571k
A pipeline for identifying disease-causing variants in transmembrane proteinsK99HG010904 · NHGRI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI GLAZER, ANDREW M. · 2020 to 2021
$223k
High-throughput Discovery of Pathogenic Cardiac Sodium Channel VariantsF32HL137385 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI GLAZER, ANDREW M. · 2017 to 2019
$133k
NCI NIH HHS P30 CA068485NCRR NIH HHS UL1 RR024975NHGRI NIH HHS K99 HG010904NHLBI NIH HHS F32 HL137385NHLBI NIH HHS R00 HL135442NHLBI NIH HHS R01 HL149826NHLBI NIH HHS R35 HL144980NIGMS NIH HHS R01 GM109110NIH HHS S10 OD025281
6 · The paper itself

Abstract

backgroundKCHN2 encodes the K

objectiveThe purpose of this study was to report a high-throughput, multiplexed screening method for KCNH2 genetic variants capable of measuring the cell surface abundance of hundreds of missense variants in the resulting K

methodsWe developed a method to quantitate K

resultsWe generated trafficking scores for 220 of 231 missense variants in the pilot region. For 5 of 5 variants, high-throughput trafficking scores validated when tested in single variant flow cytometry and confocal microscopy experiments. We further explored these results with planar patch electrophysiology and found that loss-of-trafficking variants do not produce I

conclusionWe describe a new method for detecting K

Indexed as

MutationCell LineDNADNA Mutational AnalysisERG1 Potassium ChannelHumansLong QT SyndromeMyocardiumPatch-Clamp TechniquesDNAERG1 Potassium ChannelKCNH2 protein, humanDeep mutational scanninghERGKCNH2K(V)11.1Membrane trafficking

Identifiers

PMID32522694
PMCPMC7704534
OpenAlexW3033147615

What OpenQuestion holds

Textmetadata
LicenceTDM
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.