Evidence map›Paper›PMID 31619519›Full record

ArticleThe Journal of biological chemistry2019

The host-defense peptide piscidin P1 reorganizes lipid domains in membranes and decreases activation energies in mechanosensitive ion channels.

Fatih Comert, Alexander Greenwood, Joseph Maramba, Roderico Acevedo, Laura Lucas, Thulasi Kulasinghe, Leah S Cairns, Yi Wen, Riqiang Fu, Janet Hammer and 4 more

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. Article
  2. A unified model of transient poration induced by antimicrobial peptides.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

14 authors.

Fatih ComertInstitute for Bioscience and Biotechnology Research, Rockville, Maryland 20850.
Alexander GreenwoodDepartment of Applied Science, William and Mary, Williamsburg, Virginia 23185.
Joseph MarambaBiology Department, University of Maryland, College Park, Maryland 20742.
Roderico AcevedoInstitute for Bioscience and Biotechnology Research, Rockville, Maryland 20850.
Laura LucasInstitute for Bioscience and Biotechnology Research, Rockville, Maryland 20850.
Thulasi KulasingheInstitute for Bioscience and Biotechnology Research, Rockville, Maryland 20850.
Leah S CairnsDepartment of Biochemistry and Molecular Biology, The Johns Hopkins University, Baltimore, Maryland 21205.
Yi WenDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853.
Riqiang FuNational High Magnetic Field Laboratory, Tallahassee, Florida 32310.
Janet HammerDepartment of Biomedical Sciences, Ohio University, Athens, Ohio 45701.
Jack BlazykDepartment of Biomedical Sciences, Ohio University, Athens, Ohio 45701.
Sergei SukharevBiology Department, University of Maryland, College Park, Maryland 20742.
Myriam L CottenDepartment of Applied Science, William and Mary, Williamsburg, Virginia 23185. Electronic address: mcotten@wm.edu.
Mihaela MihailescuInstitute for Bioscience and Biotechnology Research, Rockville, Maryland 20850. Electronic address: emihailescu@ibbr.umd.edu.

Funding

TRD3 NMRbox: Bayesian AnalyticsP41GM111135 · NIGMS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI HOCH, JEFFREY C · 2015 to 2024
$14.0M
NIGMS NIH HHS P41 GM111135
6 · The paper itself

Abstract

The host-defense peptide (HDP) piscidin 1 (P1), isolated from the mast cells of striped bass, has potent activities against bacteria, viruses, fungi, and cancer cells and can also modulate the activity of membrane receptors. Given its broad pharmacological potential, here we used several approaches to better understand its interactions with multicomponent bilayers representing models of bacterial (phosphatidylethanolamine (PE)/phosphatidylglycerol) and mammalian (phosphatidylcholine/cholesterol (PC/Chol)) membranes. Using solid-state NMR, we solved the structure of P1 bound to PC/Chol and compared it with that of P3, a less potent homolog. The comparison disclosed that although both peptides are interfacially bound and α-helical, they differ in bilayer orientations and depths of insertion, and these differences depend on bilayer composition. Although Chol is thought to make mammalian membranes less susceptible to HDP-mediated destabilization, we found that Chol does not affect the permeabilization effects of P1. X-ray diffraction experiments revealed that both piscidins produce a demixing effect in PC/Chol membranes by increasing the fraction of the Chol-depleted phase. Furthermore, P1 increased the temperature required for the lamellar-to-hexagonal phase transition in PE bilayers, suggesting that it imposes positive membrane curvature. Patch-clamp measurements on the inner

Indexed as

Anti-Bacterial AgentsAntimicrobial Cationic PeptidesCholesterolEscherichia coliGlycerophospholipidsLipid BilayersLiposomesMagnetic Resonance SpectroscopyPatch-Clamp TechniquesPhosphatidylcholinesPhosphatidylglycerolsAnti-Bacterial AgentsAntimicrobial Cationic PeptidesCholesterolGlycerophospholipidsLipid BilayersLiposomesphosphatidylcholesterolPhosphatidylcholinesPhosphatidylglycerolsantibiotichost defenseion channellipid bilayerMscLMscSneutron diffractionpatch clamppiscidinsolid-state NMR

Identifiers

PMID31619519
PMCPMC6901303

What OpenQuestion holds

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Registered trials

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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.