Evidence map›Paper›PMID 24339931›Full record

ArticlePloS one2013

Intracellular nucleic acid delivery by the supercharged dengue virus capsid protein.

João Miguel Freire, Ana Salomé Veiga, Thaís M Conceição, Wioleta Kowalczyk, Ronaldo Mohana-Borges, David Andreu, Nuno C Santos, Andrea T Da Poian, Miguel A R B Castanho

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. 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
3.6field-weighted citation impact, top 8% 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, 45 citations in OpenAlex.

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  12. IRAM: virus capsid database and analysis resource.Database : the journal of biological databases and curation · 2019
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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

9 authors at 3 institutions in 3 countries.

João Miguel FreireInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
Ana Salomé Veiga
Thaís M Conceição
Wioleta Kowalczyk
Ronaldo Mohana-Borges
David Andreu
Nuno C Santos
Andrea T Da Poian
Miguel A R B Castanho
University of Lisbon · PTUniversidade Federal do Rio de Janeiro · BRBarcelona Biomedical Research Park · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Supercharged proteins are a recently identified class of proteins that have the ability to efficiently deliver functional macromolecules into mammalian cells. They were first developed as bioengineering products, but were later found in the human proteome. In this work, we show that this class of proteins with unusually high net positive charge is frequently found among viral structural proteins, more specifically among capsid proteins. In particular, the capsid proteins of viruses from the Flaviviridae family have all a very high net charge to molecular weight ratio (> +1.07/kDa), thus qualifying as supercharged proteins. This ubiquity raises the hypothesis that supercharged viral capsid proteins may have biological roles that arise from an intrinsic ability to penetrate cells. Dengue virus capsid protein was selected for a detailed experimental analysis. We showed that this protein is able to deliver functional nucleic acids into mammalian cells. The same result was obtained with two isolated domains of this protein, one of them being able to translocate lipid bilayers independently of endocytic routes. Nucleic acids such as siRNA and plasmids were delivered fully functional into cells. The results raise the possibility that the ability to penetrate cells is part of the native biological functions of some viral capsid proteins.

Indexed as

Amino Acid SequenceAnimalsCapsid ProteinsCell LineDengue VirusHumansIntracellular SpaceModels, MolecularMolecular Sequence DataNucleic Acid ConformationProtein ConformationRNA, ViralVirus InternalizationCapsid ProteinsRNA, Viral

Identifiers

PMID24339931
PMCPMC3855322
OpenAlexW1986791915

What OpenQuestion holds

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LicenceCC BY
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.