Evidence map›Paper›PMID 28001058›Full record

ArticleJournal of the American Chemical Society2017

pH-Triggered, Macromolecule-Sized Poration of Lipid Bilayers by Synthetically Evolved Peptides.

Gregory Wiedman, Sarah Y Kim, Elmer Zapata-Mercado, William C Wimley, Kalina Hristova

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2017. 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
–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

34 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Smart exosomes enhance PDAC targeted therapy.Journal of controlled release : official journal of the Controlled Release Society · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. The reduced-charge melittin analogue MelP5 improves the transfection of non-viral DNA nanoparticles.Journal of peptide science : an official publication of the European Peptide Society · 2022
    Article
  10. Review
  11. Article
  12. Review
  13. Predicting Membrane-Active Peptide Dynamics in Fluidic Lipid Membranes.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

5 authors.

Gregory WiedmanDepartment of Materials Science and Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States.
Sarah Y KimGraduate Program in Molecular Biophysics, Johns Hopkins University , Baltimore, Maryland 21218, United States.
Elmer Zapata-MercadoGraduate Program in Molecular Biophysics, Johns Hopkins University , Baltimore, Maryland 21218, United States.
William C WimleyDepartment of Biochemistry and Molecular Biology, Tulane University School of Medicine , New Orleans, Louisiana 70112, United States.ORCID 0000-0003-2967-5186
Kalina HristovaDepartment of Materials Science and Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States.

Funding

PROGRAM IN MOLECULAR BIOPHYSICST32GM008403 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI BARRICK, DOUGLAS E. · 1990 to 2019
$13.5M
Seeking the Physical Basis of AchondroplasiaR01GM068619 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI HRISTOVA, KALINA · 2004 to 2022
$5.4M
Spontaneous Membrane Translocating PeptidesR01GM111824 · NIGMS · TULANE UNIVERSITY OF LOUISIANA · PI WIMLEY, WILLIAM C · 2016 to 2019
$1.4M
NIGMS NIH HHS R01 GM068619NIGMS NIH HHS R01 GM111824NIGMS NIH HHS T32 GM008403
6 · The paper itself

Abstract

pH-triggered membrane-permeabilizing peptides could be exploited in a variety of applications, such as to enable cargo release from endosomes for cellular delivery, or as cancer therapeutics that selectively permeabilize the plasma membranes of malignant cells. Such peptides would be especially useful if they could enable the movement of macromolecules across membranes, a rare property in membrane-permeabilizing peptides. Here we approach this goal by using an orthogonal high-throughput screen of an iterative peptide library to identify peptide sequences that have the following two properties: (i) little synthetic lipid membrane permeabilization at physiological pH 7 at high peptide concentration and (ii) efficient formation of macromolecule-sized defects in synthetic lipid membranes at acidic pH 5 and low peptide concentration. The peptides we selected are remarkably potent macromolecular sized pore-formers at pH 5, while having little or no activity at pH 7, as intended. The action of these peptides likely relies on tight coupling between membrane partitioning, α-helix formation, and electrostatic repulsions between acidic side chains, which collectively drive a sharp pH-triggered transition between inactive and active configurations with apparent pK

Indexed as

Models, BiologicalHydrogen-Ion ConcentrationLipid BilayersParticle SizePeptide LibraryPeptidesPorosityLipid BilayersPeptide LibraryPeptides

Identifiers

PMID28001058
PMCPMC5521809

What OpenQuestion holds

Textmetadata
LicenceTDM
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.