Evidence map›Paper›PMID 20164235›Full record

ArticleJournal of virology2010

Achieving a golden mean: mechanisms by which coronaviruses ensure synthesis of the correct stoichiometric ratios of viral proteins.

Ewan P Plant, Rasa Rakauskaite, Deborah R Taylor, Jonathan D Dinman

Abstract read
In one paragraph

Article in Journal of virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed
–field-weighted citation impact
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

93 citing papers in PubMed.

  1. Article
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  4. Integrated phenotypic screening and chemical proteomics identifies ETF1 ligands that modulate viral translation and replication.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  5. Review
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  18. Evolution of coronavirus frameshifting elements: Competing stem networks explain conservation and variability.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Article
  20. Review

33 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

4 authors.

Ewan P PlantLaboratory of Hepatitis and Related Emerging Agents, Division of Emerging and Transfusion-Transmitted Diseases, Office of Blood Research and Review, CBER, FDA, 8800 Rockville Pike, HFM310, Bethesda, Maryland 20892, USA.
Rasa Rakauskaite
Deborah R Taylor
Jonathan D Dinman

Funding

Characterization of the SARSCoV frameshift signalR01AI064307 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI DINMAN, JONATHAN D · 2006 to 2010
$2.0M
NIAID NIH HHS R01 AI064307
6 · The paper itself

Abstract

In retroviruses and the double-stranded RNA totiviruses, the efficiency of programmed -1 ribosomal frameshifting is critical for ensuring the proper ratios of upstream-encoded capsid proteins to downstream-encoded replicase enzymes. The genomic organizations of many other frameshifting viruses, including the coronaviruses, are very different, in that their upstream open reading frames encode nonstructural proteins, the frameshift-dependent downstream open reading frames encode enzymes involved in transcription and replication, and their structural proteins are encoded by subgenomic mRNAs. The biological significance of frameshifting efficiency and how the relative ratios of proteins encoded by the upstream and downstream open reading frames affect virus propagation has not been explored before. Here, three different strategies were employed to test the hypothesis that the -1 PRF signals of coronaviruses have evolved to produce the correct ratios of upstream- to downstream-encoded proteins. Specifically, infectious clones of the severe acute respiratory syndrome (SARS)-associated coronavirus harboring mutations that lower frameshift efficiency decreased infectivity by >4 orders of magnitude. Second, a series of frameshift-promoting mRNA pseudoknot mutants was employed to demonstrate that the frameshift signals of the SARS-associated coronavirus and mouse hepatitis virus have evolved to promote optimal frameshift efficiencies. Finally, we show that a previously described frameshift attenuator element does not actually affect frameshifting per se but rather serves to limit the fraction of ribosomes available for frameshifting. The findings of these analyses all support a "golden mean" model in which viruses use both programmed ribosomal frameshifting and translational attenuation to control the relative ratios of their encoded proteins.

Indexed as

Gene Expression Regulation, ViralProtein BiosynthesisAnimalsFrameshifting, RibosomalModels, MolecularMurine hepatitis virusMutationNucleic Acid ConformationOpen Reading FramesRNA, ViralSevere acute respiratory syndrome-related coronavirusViral ProteinsRNA, ViralViral Proteins

Identifiers

PMID20164235
PMCPMC2863758

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.