Evidence map›Paper›PMID 30622191›Full record

ArticlemBio2019

RNA Structure Duplication in the Dengue Virus 3' UTR: Redundancy or Host Specificity?

Luana de Borba, Sergio M Villordo, Franco L Marsico, Juan M Carballeda, Claudia V Filomatori, Leopoldo G Gebhard, Horacio M Pallarés, Sebastian Lequime, Louis Lambrechts, Irma Sánchez Vargas and 2 more

Open access · goldAbstract read
In one paragraph

Article in mBio, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
10.2field-weighted citation impact, top 1% 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

67 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
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  5. Alignment-freeJournal of clinical microbiology · 2026
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  10. Alignment-Free Guided Design of a Pan-Orthoflavivirus RT-qPCR Assay.bioRxiv : the preprint server for biology · 2026
    Article
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  13. Zika Virus: A Tale of Two Lineages.Pathogens (Basel, Switzerland) · 2025
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Functional Roles and Host Interactions ofPathogens (Basel, Switzerland) · 2025
    Review

7 more citing papers are in PubMed but not listed here.

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

12 authors at 3 institutions in 4 countries.

Luana de BorbaFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Sergio M VillordoFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Franco L MarsicoFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Juan M CarballedaFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Claudia V FilomatoriFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Leopoldo G GebhardFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Horacio M PallarésFundación Instituto Leloir-CONICET, Buenos Aires, Argentina.
Sebastian LequimeInsect-Virus Interactions Group, Department of Genomes and Genetics, Institut Pasteur, Paris, France.
Louis LambrechtsInsect-Virus Interactions Group, Department of Genomes and Genetics, Institut Pasteur, Paris, France.ORCID 0000-0001-5958-2138
Irma Sánchez VargasArthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, USA.
Carol D BlairArthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, USA.
Andrea V GamarnikFundación Instituto Leloir-CONICET, Buenos Aires, Argentina agamarnik@leloir.org.ar.
Consejo Nacional de Investigaciones Científicas y Técnicas · ARColorado State University · USInstitut Pasteur · FR

Funding

MECHANISMS OF DENGUE VIRUS GENOME ENCAPSIDATION AND UNCOATINGR01AI095175 · NIAID · FUNDACION INSTITUTO LELOIR · PI GAMARNIK, ANDREA · 2011 to 2020
$1.0M
NIAID NIH HHS R01 AI095175
6 · The paper itself

Abstract

Flaviviruses include a diverse group of medically important viruses that cycle between mosquitoes and humans. During this natural process of switching hosts, each species imposes different selective forces on the viral population. Using dengue virus (DENV) as model, we found that paralogous RNA structures originating from duplications in the viral 3' untranslated region (UTR) are under different selective pressures in the two hosts. These RNA structures, known as dumbbells (DB1 and DB2), were originally proposed to be enhancers of viral replication. Analysis of viruses obtained from infected mosquitoes showed selection of mutations that mapped in DB2. Recombinant viruses carrying the identified variations confirmed that these mutations greatly increase viral replication in mosquito cells, with low or no impact in human cells. Use of viruses lacking each of the DB structures revealed opposite viral phenotypes. While deletion of DB1 reduced viral replication about 10-fold, viruses lacking DB2 displayed a great increase of fitness in mosquitoes, confirming a functional diversification of these similar RNA elements. Mechanistic analysis indicated that DB1 and DB2 differentially modulate viral genome cyclization and RNA replication. We found that a pseudoknot formed within DB2 competes with long-range RNA-RNA interactions that are necessary for minus-strand RNA synthesis. Our results support a model in which a functional diversification of duplicated RNA elements in the viral 3' UTR is driven by host-specific requirements. This study provides new ideas for understanding molecular aspects of the evolution of RNA viruses that naturally jump between different species.

Indexed as

3' Untranslated RegionsNucleic Acid ConformationAnimalsCulicidaeDengue VirusHost SpecificityHumansRepetitive Sequences, Nucleic AcidRNA, ViralSelection, GeneticVirus Replication3' Untranslated RegionsRNA, Viraldengue virusflavivirushost adaptationRNA-RNA interactionsRNA virusRNA virus evolutionviral RNA structures

Identifiers

PMID30622191
PMCPMC6325252
OpenAlexW2909972585

What OpenQuestion holds

Textmetadata
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.