Evidence map›Paper›PMID 34413192›Full record

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

Folding and misfolding of potassium channel monomers during assembly and tetramerization.

Kevin C Song, Andrew V Molina, Ruofan Chen, Isabelle A Gagnon, Young Hoon Koh, Benoît Roux, Tobin R Sosnick

Abstract 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 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Protein assembly and crowding simulations.Current opinion in structural biology · 2022
    Review
  4. Lipid bilayer induces contraction of the denatured state ensemble of a helical-bundle membrane protein.Proceedings of the National Academy of Sciences of the United States of America · 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

7 authors.

Kevin C SongGraduate Program in the Biophysical Sciences, The University of Chicago, Chicago, IL 60637.
Andrew V MolinaGraduate Program in the Biophysical Sciences, The University of Chicago, Chicago, IL 60637.ORCID 0000-0003-1799-1536
Ruofan ChenPritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637.
Isabelle A GagnonDepartment of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637.ORCID 0000-0003-4708-0864
Young Hoon KohGraduate Program in the Biophysical Sciences, The University of Chicago, Chicago, IL 60637.ORCID 0000-0002-8717-6089
Benoît RouxDepartment of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637; roux@uchicago.edu trsosnic@uchicago.edu.ORCID 0000-0002-5254-2712
Tobin R SosnickPritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637; roux@uchicago.edu trsosnic@uchicago.edu.ORCID 0000-0002-2871-7244

Funding

MEDICAL SCIENTIST TRAININGT32GM007281 · NIGMS · UNIVERSITY OF CHICAGO · PI CLARK, MARCUS RAMSAY · 1985 to 2022
$32.1M
TrainingP41GM103712 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FAEDER, JAMES · 2012 to 2021
$16.3M
Computational Studies of Ion Channels - Resubmission 01R01GM062342 · NIGMS · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI ROUX, BENOIT · 2001 to 2022
$8.7M
Kinetic studies of protein foldingR01GM055694 · NIGMS · UNIVERSITY OF CHICAGO · PI SOSNICK, TOBIN R · 2001 to 2022
$7.6M
HIGH RESOLUTION STRUCTURAL DYNAMICS OF K CHANNELSR01GM057846 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PEROZO, EDUARDO A · 1998 to 2018
$7.4M
Beagle-3: A Shared GPU Cluster for Biomolecular SciencesS10OD028655 · OD · UNIVERSITY OF CHICAGO · PI ROUX, BENOIT · 2020 to 2020
$2.0M
Determining the molecular basis of adaptive stress-triggered protein phase separationR01GM126547 · NIGMS · UNIVERSITY OF CHICAGO · PI DRUMMOND, DAVID ALLAN, SOSNICK, TOBIN R · 2018 to 2021
$1.6M
HIGH PERFORMANCE COMPUTER SYSTEM FOR MOLECULAR MODELING: STRUCTURAL BIOLOGYS10RR019216 · NCRR · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI ROUX, BENOIT · 2004 to 2004
$496k
FOLDING OF AN ALPHA-HELICAL COILED COILR29GM055694 · NIGMS · UNIVERSITY OF CHICAGO · PI SOSNICK, TOBIN R · 1996 to 2000
$107k
NCRR NIH HHS S10 RR019216NIGMS NIH HHS P41 GM103712NIGMS NIH HHS R01 GM055694NIGMS NIH HHS R01 GM057846NIGMS NIH HHS R01 GM062342NIGMS NIH HHS R01 GM126547NIGMS NIH HHS R29 GM055694NIGMS NIH HHS T32 GM007281NIH HHS S10 OD028655
6 · The paper itself

Abstract

The dynamics and folding of potassium channel pore domain monomers are connected to the kinetics of tetramer assembly. In all-atom molecular dynamics simulations of Kv1.2 and KcsA channels, monomers adopt multiple nonnative conformations while the three helices remain folded. Consistent with this picture, NMR studies also find the monomers to be dynamic and structurally heterogeneous. However, a KcsA construct with a disulfide bridge engineered between the two transmembrane helices has an NMR spectrum with well-dispersed peaks, suggesting that the monomer can be locked into a native-like conformation that is similar to that observed in the folded tetramer. During tetramerization, fluoresence resonance energy transfer (FRET) data indicate that monomers rapidly oligomerize upon insertion into liposomes, likely forming a protein-dense region. Folding within this region occurs along separate fast and slow routes, with τ

Indexed as

Protein ConformationProtein FoldingProtein MultimerizationKineticsKv1.2 Potassium ChannelMarkov ChainsMolecular Dynamics SimulationKv1.2 Potassium ChannelFRETion channelKcsAmolecular dynamicsNMR

Identifiers

PMID34413192
PMCPMC8403937

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.