Evidence map›Paper›PMID 37637198›Full record

ArticlePNAS nexus2023

Membrane free-energy landscapes derived from atomistic dynamics explain nonuniversal cholesterol-induced stiffening.

Giacomo Fiorin, Lucy R Forrest, José D Faraldo-Gómez

Open access · goldAbstract read
In one paragraph

Article in PNAS nexus, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

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  5. Expanded Functionality and Portability for the Colvars Library.The journal of physical chemistry. B · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Giacomo FiorinNational Institute for Neurological Disorders and Stroke, Bethesda, MD 20892, USA.ORCID https://orcid.org/0000-0002-8793-8645
Lucy R ForrestNational Institute for Neurological Disorders and Stroke, Bethesda, MD 20892, USA.ORCID https://orcid.org/0000-0003-1855-7985
José D Faraldo-GómezNational Heart, Lung and Blood Institute, Bethesda, MD 20894, USA.ORCID https://orcid.org/0000-0001-7224-7676
National Heart Lung and Blood Institute · USNational Institute of Neurological Disorders and Stroke · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

All lipid membranes have inherent morphological preferences and resist deformation. Yet adaptations in membrane shape can and do occur at multiple length scales. While this plasticity is crucial for cellular physiology, the factors controlling the morphological energetics of lipid bilayers and the dominant mechanisms of membrane remodeling remain to be fully understood. An ongoing debate regarding the universality of the stiffening effect of cholesterol underscores the challenges facing this field, both experimentally and theoretically, even for simple lipid mixtures. On the computational side, we have argued that enhanced-sampling all-atom molecular dynamics simulations are uniquely suited for the quantification of membrane conformational energetics, as they minimize a priori assumptions and permit analysis of bilayers in deformed states. To showcase this approach, we examine reported inconsistencies between alternative experimental measurements of bending moduli for cholesterol-enriched membranes. Specifically, we analyze lipid bilayers with different chain saturation and compute free-energy landscapes for curvature deformations distributed over areas from ∼5 to ∼60 nm

Indexed as

biomembrane mechanicscholesterolfree energymolecular dynamics

Identifiers

PMID37637198
PMCPMC10456217
OpenAlexW4385967019

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.