Evidence map›Paper›PMID 35788586›Full record

ArticleNature communications2022

Structures of the T cell potassium channel Kv1.3 with immunoglobulin modulators.

Purushotham Selvakumar, Ana I Fernández-Mariño, Nandish Khanra, Changhao He, Alice J Paquette, Bing Wang, Ruiqi Huang, Vaughn V Smider, William J Rice, Kenton J Swartz and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. 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
8.7field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 103 citations in OpenAlex.

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  15. Identification of Novel Kv1.3 Channel-Interacting Proteins Using Proximity Labelling in T-Cells.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2025
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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

11 authors at 5 institutions in 1 country.

Purushotham Selvakumar *Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY, USA.
Ana I Fernández-Mariño *Molecular Physiology and Biophysics Section, Porter Neuroscience Research Center, National Institute of Neurological Diseases and Stroke, National Institutes of Health, Bethesda, MD, USA.
Nandish KhanraDepartment of Physiology and Biophysics, Weill Cornell Medical College, New York, NY, USA.
Changhao HeDepartment of Physiology and Biophysics, Weill Cornell Medical College, New York, NY, USA.
Alice J PaquetteCryo-Electron Microscopy Core, New York University School of Medicine, New York, NY, USA.
Bing WangCryo-Electron Microscopy Core, New York University School of Medicine, New York, NY, USA.
Ruiqi HuangApplied Biomedical Science Institute, San Diego, CA, USA.
Vaughn V SmiderApplied Biomedical Science Institute, San Diego, CA, USA.
William J RiceCryo-Electron Microscopy Core, New York University School of Medicine, New York, NY, USA.ORCID 0000-0002-5187-255X
Kenton J SwartzMolecular Physiology and Biophysics Section, Porter Neuroscience Research Center, National Institute of Neurological Diseases and Stroke, National Institutes of Health, Bethesda, MD, USA.ORCID 0000-0003-3419-0765
Joel R MeyersonDepartment of Physiology and Biophysics, Weill Cornell Medical College, New York, NY, USA. jrm2008@med.cornell.edu.ORCID 0000-0002-6127-0093
Cornell University · USNew York University · USNational Institutes of Health · USApplied Biotechnology Institute · USScripps Research Institute · US

Funding

Gating mechanisms and pharmacology of voltage-activated ion channelsZIANS002945 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON · 2009 to 2025
$44.2M
TRD #3: An automated and streamlined pipeline for in-situ molecular microscopyP41GM103310 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI DE MARCO, ALEX, KIEFT, JEFFREY S · 2012 to 2021
$14.7M
ChimeraX -- Next Generation Visualization and Analysis Software for Multiscale ModelingR01GM129325 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FERRIN, THOMAS E · 2018 to 2025
$5.2M
Molecular and Structural Studies of Antibody Diversity MechanismsR01GM105826 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI SMIDER, VAUGHN VASIL · 2014 to 2021
$3.1M
PROBING THE STRUCTURE AND FUNCTION OF POTASSIUM AND CALCIUM CHANNELSZ01NS002945 · NINDS · NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON J · 1997 to 2008
$1.9M
Intramural NIH HHS Z01 NS002945NIGMS NIH HHS P41 GM103310NIGMS NIH HHS R01 GM105826NIGMS NIH HHS R01 GM129325
6 · The paper itself

Abstract

The Kv1.3 potassium channel is expressed abundantly on activated T cells and mediates the cellular immune response. This role has made the channel a target for therapeutic immunomodulation to block its activity and suppress T cell activation. Here, we report structures of human Kv1.3 alone, with a nanobody inhibitor, and with an antibody-toxin fusion blocker. Rather than block the channel directly, four copies of the nanobody bind the tetramer's voltage sensing domains and the pore domain to induce an inactive pore conformation. In contrast, the antibody-toxin fusion docks its toxin domain at the extracellular mouth of the channel to insert a critical lysine into the pore. The lysine stabilizes an active conformation of the pore yet blocks ion permeation. This study visualizes Kv1.3 pore dynamics, defines two distinct mechanisms to suppress Kv1.3 channel activity with exogenous inhibitors, and provides a framework to aid development of emerging T cell immunotherapies.

Indexed as

T-LymphocytesHumansImmunoglobulinsKv1.3 Potassium ChannelLysineImmunoglobulinsKCNA3 protein, humanKv1.3 Potassium ChannelLysine

Identifiers

PMID35788586
PMCPMC9253088
OpenAlexW4283798439

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.