Evidence map›Paper›PMID 34315827›Full record

ArticleScience (New York, N.Y.)2021

Structural basis of mismatch recognition by a SARS-CoV-2 proofreading enzyme.

Chang Liu, Wei Shi, Scott T Becker, David G Schatz, Bin Liu, Yang Yang

Open access · hybridAbstract read
In one paragraph

Article in Science (New York, N.Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
8.5field-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

95 citing papers in PubMed, 140 citations in OpenAlex.

  1. Review
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  9. Review
  10. Article
  11. Inhibition of coronaviral exoribonuclease activity by TRIM-mediated SUMOylation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Molecular basis of SARS-CoV-2 proofreading enzyme-mediated resistance to remdesivir.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  18. Article
  19. Article
  20. Article

35 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

6 authors at 3 institutions in 1 country.

Chang LiuDepartment of Immunobiology, Yale School of Medicine, New Haven, CT, USA.ORCID 0000-0003-1829-0117
Wei ShiSection of Transcription and Gene Regulation, The Hormel Institute, University of Minnesota, Austin, MN, USA.ORCID 0000-0002-0741-6813
Scott T BeckerRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, USA.ORCID 0000-0002-6730-803X
David G SchatzDepartment of Immunobiology, Yale School of Medicine, New Haven, CT, USA.ORCID 0000-0002-5669-1176
Bin LiuSection of Transcription and Gene Regulation, The Hormel Institute, University of Minnesota, Austin, MN, USA.ORCID 0000-0002-6581-780X
Yang YangRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, USA.ORCID 0000-0001-9061-3828
Iowa State University · USUniversity of Minnesota · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coronavirus 3′-to-5′ exoribonuclease (ExoN), residing in the nonstructural protein (nsp) 10–nsp14 complex, boosts replication fidelity by proofreading RNA synthesis and is critical for the virus life cycle. ExoN also recognizes and excises nucleotide analog inhibitors incorporated into the nascent RNA, undermining the effectiveness of nucleotide analog–based antivirals. Here we present cryo–electron microscopy structures of both wild-type and mutant severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nsp10-nsp14 in complex with an RNA substrate bearing a 3′-end mismatch at resolutions ranging from 2.5 to 3.9 angstroms. The structures reveal the molecular determinants of ExoN substrate specificity and offer insight into the molecular mechanisms of mismatch correction during coronavirus RNA synthesis. Our findings provide guidance for rational design of improved anticoronavirus therapies.

Indexed as

DNA Mismatch RepairAntiviral AgentsCryoelectron MicroscopyDrug DesignExoribonucleasesHumansProtein DomainsRNA, ViralSARS-CoV-2Substrate SpecificityViral Nonstructural ProteinsViral Regulatory and Accessory ProteinsAntiviral AgentsExoribonucleasesNSP14 protein, SARS-CoV-2ORF1ab polyprotein, SARS-CoV-2RNA, ViralViral Nonstructural ProteinsViral Regulatory and Accessory Proteins

Identifiers

PMID34315827
PMCPMC9836006
OpenAlexW3186956315

What OpenQuestion holds

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LicenceCC BY
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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.