Evidence map›Paper›PMID 19594111›Full record

ArticleBiochemistry2009

Wasp mastoparans follow the same mechanism as the cell-penetrating peptide transportan 10.

Lindsay E Yandek, Antje Pokorny, Paulo F F Almeida

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2009. 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
3.3field-weighted citation impact, top 9% 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, 41 citations in OpenAlex.

  1. Growth ofbioRxiv : the preprint server for biology · 2024
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  5. Daptomycin-Phosphatidylglycerol Domains in Lipid Membranes.Langmuir : the ACS journal of surfaces and colloids · 2017
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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

3 authors at 1 institution in 1 country.

Lindsay E YandekDepartment of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403, USA.
Antje Pokorny
Paulo F F Almeida
University of North Carolina Wilmington · US

Funding

Mechanisms of amphipathic and cargo delivery peptidesR15GM072507 · NIGMS · UNIVERSITY OF NORTH CAROLINA WILMINGTON · PI ALMEIDA, PAULO F · 2005 to 2012
$758k
NIGMS NIH HHS GM072507NIGMS NIH HHS R15 GM072507
6 · The paper itself

Abstract

We have been examining the mechanism and kinetics of the interactions of a selected set of peptides with phospholipid membranes in a quantitative manner. This set was chosen to cover a broad range of physical-chemical properties and cell specificities. Mastoparan (masL) and mastoparan X (masX) are two similar peptides from the venoms of the wasps Vespula lewisii and Vespa xanthoptera, respectively, and were chosen to complete the set. The rate constants for masX association with and dissociation from membranes are reported here for the first time. The kinetics of dye efflux induced by both mastoparans from phospholipid vesicles were also examined and quantitatively analyzed. We find that masL and masX follow the same graded kinetic model that we previously proposed for the cell-penetrating peptide transportan 10 (tp10), but with different parameters. This comparison is relevant because tp10 is derived from masL by addition of a mostly nonpolar segment of seven residues at the N-terminus. Tp10 is more active than the mastoparans toward phosphatidylcholine vesicles, but the mastoparans are more sensitive to the effect of anionic lipids. Furthermore, the Gibbs free energies of binding and insertion of the peptides calculated using the Wimley-White transfer scales are in good agreement with the values derived from our experimental data and are useful for understanding peptide behavior.

Indexed as

PeptidesAmino Acid SequenceAnimalsCell Membrane PermeabilityFluoresceinsFluorescent DyesGalaninHumansIntercellular Signaling Peptides and ProteinsLipid BilayersMembrane LipidsModels, MolecularMolecular Sequence DataNaphthalenesPhospholipidsProtein Isoforms6-carboxyfluorescein8-amino-1,3,6-naphthalenetrisulfonic acidFluoresceinsFluorescent DyesGalaninIntercellular Signaling Peptides and ProteinsLipid BilayersmastoparanMembrane LipidsNaphthalenesN,N'-4-xylylenebis(pyridinium)PeptidesPhospholipidsProtein IsoformsPyridinium CompoundsRecombinant Fusion ProteinstransportanWasp Venoms

Identifiers

PMID19594111
PMCPMC2774274
OpenAlexW2071255312

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.