Evidence map›Paper›PMID 23746514›Full record

ArticleBiophysical journal2013

A membrane-translocating peptide penetrates into bilayers without significant bilayer perturbations.

Juan Cruz, Mihaela Mihailescu, Greg Wiedman, Katherine Herman, Peter C Searson, William C Wimley, Kalina Hristova

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

29 citing papers in PubMed, 48 citations in OpenAlex.

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  14. Emerging Methods and Design Principles for Cell-Penetrant Peptides.Angewandte Chemie (International ed. in English) · 2018
    Review
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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.

Juan CruzDepartment of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA.
Mihaela Mihailescu
Greg Wiedman
Katherine Herman
Peter C Searson
William C Wimley
Kalina Hristova
Johns Hopkins University · USInstitute for Bioscience and Biotechnology ResearchTulane University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Using a high throughput screen, we have identified a family of 12-residue long peptides that spontaneously translocate across membranes. These peptides function by a poorly understood mechanism that is very different from that of the well-known, highly cationic cell penetrating peptides such as the tat peptide from HIV. The newly discovered translocating peptides can carry polar cargoes across synthetic bilayers and across cellular membranes quickly and spontaneously without disrupting the membrane. Here we report on the biophysical characterization of a representative translocating peptide from the selected family, TP2, as well as a negative control peptide, ONEG, from the same library. We measured the binding of the two peptides to lipid bilayers, their secondary structure propensities, their dispositions in bilayers by neutron diffraction, and the response of the bilayer to the peptides. Compared to the negative control, TP2 has a greater propensity for membrane partitioning, although it still binds only weakly, and a higher propensity for secondary structure. Perhaps most revealing, TP2 has the ability to penetrate deep into the bilayer without causing significant bilayer perturbations, a property that may help explain its ability to translocate without bilayer permeabilization.

Indexed as

Cell MembraneLipid BilayersMembrane ProteinsOligopeptidesPhosphatidylcholinesProtein Structure, SecondaryProtein Transport1-palmitoyl-2-oleoylphosphatidylcholineLipid BilayersMembrane ProteinsOligopeptidesPhosphatidylcholines

Identifiers

PMID23746514
PMCPMC3672899
OpenAlexW1984945146

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.