Evidence map›Paper›PMID 22438801›Full record

ArticlePLoS computational biology2012

Entropic tension in crowded membranes.

Martin Lindén, Pierre Sens, Rob Phillips

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

34 citing papers in PubMed, 83 citations in OpenAlex.

  1. The configurational length scale in the self-assembly and modulation of higher-order transient protein structures.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Molecular Dynamics Simulations in Protein-Protein Docking.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  8. Engineered molecular sensors for quantifying cell surface crowding.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  9. Article
  10. Sensitive and selective polymer condensation at membrane surface driven by positive co-operativity.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  11. Critical point for membrane bilayer formation.Biochimica et biophysica acta. Biomembranes · 2023
    Article
  12. Review
  13. Article
  14. Evolutionary bioenergetics of ciliates.The Journal of eukaryotic microbiology · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Clustering and dynamics of crowded proteins near membranes and their influence on membrane bending.Proceedings of the National Academy of Sciences of the United States of America · 2019
    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

3 authors at 3 institutions in 2 countries.

Martin LindénDepartment of Applied Physics, California Institute of Technology, Pasadena, California, USA.
Pierre Sens
Rob Phillips
California Institute of Technology · USCentre National de la Recherche Scientifique · FRESPCI Paris · FR

Funding

NIH Director's Pioneer Award (RMI)DP1OD000217 · OD · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI PHILLIPS, ROB · 2004 to 2008
$4.0M
Biophysical, Structural and Functional Analysis of Mechanosensitive ChannelsR01GM084211 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI HASWELL, ELIZABETH S, PHILLIPS, ROB · 2008 to 2016
$3.6M
NIGMS NIH HHS R01 GM084211NIH HHS DP1 OD000217
6 · The paper itself

Abstract

Unlike their model membrane counterparts, biological membranes are richly decorated with a heterogeneous assembly of membrane proteins. These proteins are so tightly packed that their excluded area interactions can alter the free energy landscape controlling the conformational transitions suffered by such proteins. For membrane channels, this effect can alter the critical membrane tension at which they undergo a transition from a closed to an open state, and therefore influence protein function in vivo. Despite their obvious importance, crowding phenomena in membranes are much less well studied than in the cytoplasm. Using statistical mechanics results for hard disk liquids, we show that crowding induces an entropic tension in the membrane, which influences transitions that alter the projected area and circumference of a membrane protein. As a specific case study in this effect, we consider the impact of crowding on the gating properties of bacterial mechanosensitive membrane channels, which are thought to confer osmoprotection when these cells are subjected to osmotic shock. We find that crowding can alter the gating energies by more than [Formula: see text] in physiological conditions, a substantial fraction of the total gating energies in some cases. Given the ubiquity of membrane crowding, the nonspecific nature of excluded volume interactions, and the fact that the function of many membrane proteins involve significant conformational changes, this specific case study highlights a general aspect in the function of membrane proteins.

Indexed as

Models, BiologicalCell MembraneComputer SimulationMembrane FluidityMembrane ProteinsOsmotic PressureMembrane Proteins

Identifiers

PMID22438801
PMCPMC3305330
OpenAlexW1997672948

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.