Evidence map›Paper›PMID 29796667›Full record

ArticleNucleic acids research2018

Stability of local secondary structure determines selectivity of viral RNA chaperones.

Jack P K Bravo, Alexander Borodavka, Anders Barth, Antonio N Calabrese, Peter Mojzes, Joseph J B Cockburn, Don C Lamb, Roman Tuma

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.7field-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

18 citing papers in PubMed, 34 citations in OpenAlex.

  1. In silico unwinding ofRNA biology · 2026
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  11. Structural basis of rotavirus RNA chaperone displacement and RNA annealing.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Viruses · 2019
    Review
  17. Article
  18. Review
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

8 authors at 3 institutions in 3 countries.

Jack P K BravoAstbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK.
Alexander BorodavkaAstbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK.
Anders BarthDepartment of Chemistry, Center for NanoScience (CeNS), Nanosystems Initiative Munich (NIM) and Centre for Integrated Protein Science Munich (CiPSM), Ludwig Maximilian University of Munich, Munich, Germany.
Antonio N CalabreseAstbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK.
Peter MojzesInstitute of Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic.
Joseph J B CockburnAstbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK.
Don C LambDepartment of Chemistry, Center for NanoScience (CeNS), Nanosystems Initiative Munich (NIM) and Centre for Integrated Protein Science Munich (CiPSM), Ludwig Maximilian University of Munich, Munich, Germany.
Roman TumaAstbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK.
University of Leeds · GBCenter for NanoScience · DECharles University · CZ

Funding

Biotechnology and Biological Sciences Research Council BB/E012558/1Biotechnology and Biological Sciences Research Council BB/P000037/1Wellcome Trust
6 · The paper itself

Abstract

To maintain genome integrity, segmented double-stranded RNA viruses of the Reoviridae family must accurately select and package a complete set of up to a dozen distinct genomic RNAs. It is thought that the high fidelity segmented genome assembly involves multiple sequence-specific RNA-RNA interactions between single-stranded RNA segment precursors. These are mediated by virus-encoded non-structural proteins with RNA chaperone-like activities, such as rotavirus (RV) NSP2 and avian reovirus σNS. Here, we compared the abilities of NSP2 and σNS to mediate sequence-specific interactions between RV genomic segment precursors. Despite their similar activities, NSP2 successfully promotes inter-segment association, while σNS fails to do so. To understand the mechanisms underlying such selectivity in promoting inter-molecular duplex formation, we compared RNA-binding and helix-unwinding activities of both proteins. We demonstrate that octameric NSP2 binds structured RNAs with high affinity, resulting in efficient intramolecular RNA helix disruption. Hexameric σNS oligomerizes into an octamer that binds two RNAs, yet it exhibits only limited RNA-unwinding activity compared to NSP2. Thus, the formation of intersegment RNA-RNA interactions is governed by both helix-unwinding capacity of the chaperones and stability of RNA structure. We propose that this protein-mediated RNA selection mechanism may underpin the high fidelity assembly of multi-segmented RNA genomes in Reoviridae.

Indexed as

Base SequenceGenome, ViralModels, MolecularMolecular ChaperonesNucleic Acid ConformationOrthoreovirus, AvianProtein BindingProtein Structure, SecondaryRNA-Binding ProteinsRNA, ViralViral Nonstructural ProteinsMolecular ChaperonesNS35 protein, rotavirusRNA-Binding ProteinsRNA, ViralViral Nonstructural Proteins

Identifiers

PMID29796667
PMCPMC6125681
OpenAlexW2950424426

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.