Evidence map›Paper›PMID 11566791›Full record

ArticleBiophysical journal2001

Orientation and dynamics of an antimicrobial peptide in the lipid bilayer by solid-state NMR spectroscopy.

S Yamaguchi, D Huster, A Waring, R I Lehrer, W Kearney, B F Tack, M Hong

Open access · greenAbstract read
In one paragraph

Article in Biophysical journal, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

57 citing papers in PubMed, 155 citations in OpenAlex.

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  13. A mini-review: mechanism of antimicrobial action and application of surfactin.World journal of microbiology & biotechnology · 2022
    Review
  14. Article
  15. Active SBiochimica et biophysica acta. Biomembranes · 2020
    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

7 authors at 3 institutions in 1 country.

S YamaguchiDepartment of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
D Huster
A Waring
R I Lehrer
W Kearney
B F Tack
M Hong
Iowa State University · USUniversity of California, Los Angeles · USUniversity of Iowa · US

Funding

Structures and lipid interactions of curvature-inducing membrane peptides by NMRR01GM066976 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI HONG, MEI · 2003 to 2021
$4.8M
DEFENSINS--ANTIMICROBIAL PEPTIDES OF HUMAN NEUTROPHILSR37AI022839 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LEHRER, ROBERT IRVING · 1993 to 2002
$1.1M
ALPHA HELICAL CATHELICIDINS AND HOST DEFENSER01AI043934 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LEHRER, ROBERT IRVING · 1999 to 2003
$965k
DEFENSINS: ANTIMICROBIAL PEPTIDES OF HUMAN NEUTROPHILSR01AI022839 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LEHRER, ROBERT IRVING · 1986 to 1994
–
NIAID NIH HHS AI 22839NIAID NIH HHS AI 43934NIGMS NIH HHS R01 GM066976
6 · The paper itself

Abstract

The orientation and dynamics of an 18-residue antimicrobial peptide, ovispirin, has been investigated using solid-state NMR spectroscopy. Ovispirin is a cathelicidin-like model peptide (NH(2)-KNLRRIIRKIIHIIKKYG-COOH) with potent, broad-spectrum bactericidal activity. (15)N NMR spectra of oriented ovispirin reconstituted into synthetic phospholipids show that the helical peptide is predominantly oriented in the plane of the lipid bilayer, except for a small portion of the helix, possibly at the C-terminus, which deviates from the surface orientation. This suggests differential insertion of the peptide backbone into the lipid bilayer. (15)N spectra of both oriented and unoriented peptides show a reduced (15)N chemical shift anisotropy at room temperature compared with that of rigid proteins, indicating that the peptide undergoes uniaxial rotational diffusion around the bilayer normal with correlation times shorter than 10(-4) s. This motion is frozen below the gel-to-liquid crystalline transition temperature of the lipids. Ovispirin interacts strongly with the lipid bilayer, as manifested by the significantly reduced (2)H quadrupolar splittings of perdeuterated palmitoyloleoylphosphatidylcholine acyl chains upon peptide binding. Therefore, ovispirin is a curved helix residing in the membrane-water interface that executes rapid uniaxial rotation. These structural and dynamic features are important for understanding the antimicrobial function of this peptide.

Indexed as

Models, ChemicalAntimicrobial Cationic PeptidesBinding SitesDiffusionLipid BilayersMagnetic Resonance SpectroscopyMembranes, ArtificialPhospholipidsRotationSurface PropertiesThermodynamicsWaterAntimicrobial Cationic PeptidesLipid BilayersMembranes, ArtificialovispirinPhospholipidsWater

Identifiers

PMID11566791
PMCPMC1301692
OpenAlexW1982004996

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.