Evidence map›Paper›PMID 31173776›Full record

ArticleJournal of molecular biology2019

Interaction of the Mechanosensitive Channel, MscS, with the Membrane Bilayer through Lipid Intercalation into Grooves and Pockets.

Tim Rasmussen, Akiko Rasmussen, Limin Yang, Corinna Kaul, Susan Black, Heloisa Galbiati, Stuart J Conway, Samantha Miller, Paul Blount, Ian Rylance Booth

Open access · hybridAbstract read
In one paragraph

Article in Journal of molecular biology, 2019. 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
2.5field-weighted citation impact, top 10% 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, 32 citations in OpenAlex.

  1. A Minimalist Model Lipid System Mimicking the Biophysical Properties ofLangmuir : the ACS journal of surfaces and colloids · 2025
    Article
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  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Cell Envelope Stress Response in Pseudomonas aeruginosa.Advances in experimental medicine and biology · 2022
    Article
  10. Molecular Paradigms for Biological Mechanosensing.The journal of physical chemistry. B · 2021
    Article
  11. Mechanosensitive channel gating by delipidation.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. The MscS-like channel YnaI has a gating mechanism based on flexible pore helices.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  17. Review
  18. Article
  19. Review
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

10 authors at 4 institutions in 2 countries.

Tim RasmussenSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK. Electronic address: tim.rasmussen@uni-wuerzburg.de.
Akiko RasmussenSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK.
Limin YangDepartment of Physiology, U.T. Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 75390-9040, USA. Electronic address: Limin.Yang@utsouthwestern.edu.
Corinna KaulDepartment of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
Susan BlackSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK.
Heloisa GalbiatiSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK.
Stuart J ConwayDepartment of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK. Electronic address: stuart.conway@chem.ox.ac.uk.
Samantha MillerSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK. Electronic address: sam.miller@abdn.ac.uk.
Paul BlountDepartment of Physiology, U.T. Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 75390-9040, USA. Electronic address: Paul.Blount@utsouthwestern.edu.
Ian Rylance BoothSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK. Electronic address: i.r.booth@abdn.ac.uk.
University of Aberdeen · GBUniversity of Oxford · GBSouthwestern Medical CenterThe University of Texas Southwestern Medical Center · US

Funding

Using Small Compounds as Probes for Studying Mechanosensitive Channel GatingR01GM121780 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI BLOUNT, PAUL · 2017 to 2020
$1.1M
NIGMS NIH HHS R01 GM121780Wellcome TrustWellcome Trust WT092552MA
6 · The paper itself

Abstract

All membrane proteins have dynamic and intimate relationships with the lipids of the bilayer that may determine their activity. Mechanosensitive channels sense tension through their interaction with the lipids of the membrane. We have proposed a mechanism for the bacterial channel of small conductance, MscS, that envisages variable occupancy of pockets in the channel by lipid chains. Here, we analyze protein-lipid interactions for MscS by quenching of tryptophan fluorescence with brominated lipids. By this strategy, we define the limits of the bilayer for TM1, which is the most lipid exposed helix of this protein. In addition, we show that residues deep in the pockets, created by the oligomeric assembly, interact with lipid chains. On the cytoplasmic side, lipids penetrate as far as the pore-lining helices and lipid molecules can align along TM3b perpendicular to lipids in the bilayer. Cardiolipin, free fatty acids, and branched lipids can access the pockets where the latter have a distinct effect on function. Cholesterol is excluded from the pockets. We demonstrate that introduction of hydrophilic residues into TM3b severely impairs channel function and that even "conservative" hydrophobic substitutions can modulate the stability of the open pore. The data provide important insights into the interactions between phospholipids and MscS and are discussed in the light of recent developments in the study of Piezo1 and TrpV4.

Indexed as

Biochemical PhenomenaBiological TransportCardiolipinsEscherichia coliEscherichia coli ProteinsHydrophobic and Hydrophilic InteractionsIon ChannelsLipid BilayersModels, MolecularPhospholipidsProtein BindingProtein ConformationProtein Interaction Domains and MotifsTryptophanCardiolipinsEscherichia coli ProteinsIon ChannelsLipid BilayersMscS protein, E coliPhospholipidsTryptophanbrominated lipidselectrophysiologyfluorescence quenchinglipid–protein interactiontension sensing

Identifiers

PMID31173776
PMCPMC6787928
OpenAlexW2948157324

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.