Evidence map›Paper›PMID 21161517›Full record

ArticleThe Journal of membrane biology2011

Structure and dynamics of cholesterol-containing polyunsaturated lipid membranes studied by neutron diffraction and NMR.

Mihaela Mihailescu, Olivier Soubias, David Worcester, Stephen H White, Klaus Gawrisch

Open access · hybridAbstract read
In one paragraph

Article in The Journal of membrane biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 39 citations in OpenAlex.

  1. Cholesterol in model membranes.Biophysical reviews · 2025
    Review
  2. Special issue for Klaus Gawrisch.Biophysical journal · 2023
    Article
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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

5 authors at 4 institutions in 1 country.

Mihaela MihailescuDepartment of Physiology and Biophysics, University of California, Irvine, CA 92697, USA.
Olivier Soubias
David Worcester
Stephen H White
Klaus Gawrisch
National Institute on Alcohol Abuse and Alcoholism · USUniversity of California, Irvine · USUniversity of California System · USUniversity of Missouri · US

Funding

NMR Investigations Of Cell Membrane StructureZIAAA000003 · NIAAA · NATIONAL INSTITUTE ON ALCOHOL ABUSE AND ALCOHOLISM · PI GAWRISCH, KLAUS · 2009 to 2020
$23.2M
Molecular Genetics of Drosophila Hybrid LethalityR01GM074737 · NIGMS · CORNELL UNIVERSITY ITHACA · PI BARBASH, DANIEL A · 2005 to 2022
$4.7M
Membrane Protein Folding and AssemblyR01GM074637 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI WHITE, STEPHEN H. · 2006 to 2020
$4.5M
NIGMS NIH HHS R01 GM074637NIGMS NIH HHS R01 GM074737
6 · The paper itself

Abstract

A direct and quantitative analysis of the internal structure and dynamics of a polyunsaturated lipid bilayer composed of 1-stearoyl-2-docosahexaenoyl-sn-glycero-3-phosphocholine (18:0-22:6n3-PC) containing 29 mol% cholesterol was carried out by neutron diffraction, (2)H-NMR and (13)C-MAS NMR. Scattering length distribution functions of cholesterol segments as well as of the sn-1 and sn-2 hydrocarbon chains of 18:0-22:6n3-PC were obtained by conducting experiments with specifically deuterated cholesterol and lipids. Cholesterol orients parallel to the phospholipids, with the A-ring near the lipid glycerol and the terminal methyl groups 3 Å away from the bilayer center. Previously, we reported that the density of polyunsaturated docosahexaenoic acid (DHA, 22:6n3) chains was higher near the lipid-water interface. Addition of cholesterol partially redistributes DHA density from near the lipid-water interface to the center of the hydrocarbon region. Cholesterol raises chain-order parameters of both stearic acid and DHA chains. The fractional order increase for stearic acid methylene carbons C(8)-C(18) is larger, reflecting the redistribution of DHA chain density toward the bilayer center. The correlation times of DHA chain isomerization are short and mostly unperturbed by the presence of cholesterol. The uneven distribution of saturated and polyunsaturated chain densities and the cholesterol-induced balancing of chain distributions may have important implications for the function and integrity of membrane receptors, such as rhodopsin.

Indexed as

Neutron DiffractionNuclear Magnetic Resonance, BiomolecularCell MembraneCholesterolDocosahexaenoic AcidsLipid BilayersMembrane LipidsPhosphatidylcholinesThermodynamicsCholesterolDocosahexaenoic AcidsLipid BilayersMembrane LipidsPhosphatidylcholines

Identifiers

PMID21161517
PMCPMC3030944
OpenAlexW2101016925

What OpenQuestion holds

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LicenceCC BY-NC
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.