Evidence map›Paper›PMID 33465137›Full record

ArticlePLoS pathogens2021

The coronavirus proofreading exoribonuclease mediates extensive viral recombination.

Jennifer Gribble, Laura J Stevens, Maria L Agostini, Jordan Anderson-Daniels, James D Chappell, Xiaotao Lu, Andrea J Pruijssers, Andrew L Routh, Mark R Denison

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 184 papers.

0numbers the graph read from it
0cells of the map it votes in
184citing papers in PubMed
15.4field-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

184 citing papers in PubMed, 280 citations in OpenAlex.

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124 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

9 authors at 2 institutions in 1 country.

Jennifer GribbleDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.ORCID 0000-0003-0815-5798
Laura J StevensDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.
Maria L AgostiniDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.
Jordan Anderson-DanielsDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.ORCID 0000-0002-9275-4330
James D ChappellDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.
Xiaotao LuDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.
Andrea J PruijssersDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.ORCID 0000-0001-7910-626X
Andrew L RouthDepartment of Biochemistry and Molecular Biology, University of Texas-Medical Branch, Galveston, Texas, United States of America.ORCID 0000-0002-2874-5990
Mark R DenisonDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America.ORCID 0000-0003-2655-0900
Vanderbilt University Medical Center · USThe University of Texas Medical Branch at Galveston · US

Funding

Project 4 - Influenza - UABU19AI142759 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI WHITLEY, RICHARD J. · 2019 to 2023
$37.5M
Chemistry-Biology Interface Training GrantT32GM065086 · NIGMS · VANDERBILT UNIVERSITY · PI BACHMANN, BRIAN O, SULIKOWSKI, GARY ALLEN · 2002 to 2022
$7.0M
Determinants of Coronavirus Fidelity in Replication and PathogenesisR01AI108197 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BARIC, RALPH S, DENISON, MARK R · 2013 to 2022
$6.5M
Coronavirus antiviral nucleoside analogs: inhibition and reduced susceptibilityF31AI133952 · NIAID · VANDERBILT UNIVERSITY · PI AGOSTINI, MARIA · 2017 to 2019
$63k
Dissecting the role of the coronavirus proofreading exoribonuclease in RNA recombinationF31AI147560 · NIAID · VANDERBILT UNIVERSITY · PI GRIBBLE, JENNIFER · 2020 to 2021
$41k
NIAID NIH HHS F31 AI133952NIAID NIH HHS F31 AI147560NIAID NIH HHS R01 AI108197NIAID NIH HHS U19 AI142759NIGMS NIH HHS T32 GM065086
6 · The paper itself

Abstract

Recombination is proposed to be critical for coronavirus (CoV) diversity and emergence of SARS-CoV-2 and other zoonotic CoVs. While RNA recombination is required during normal CoV replication, the mechanisms and determinants of CoV recombination are not known. CoVs encode an RNA proofreading exoribonuclease (nsp14-ExoN) that is distinct from the CoV polymerase and is responsible for high-fidelity RNA synthesis, resistance to nucleoside analogues, immune evasion, and virulence. Here, we demonstrate that CoVs, including SARS-CoV-2, MERS-CoV, and the model CoV murine hepatitis virus (MHV), generate extensive and diverse recombination products during replication in culture. We show that the MHV nsp14-ExoN is required for native recombination, and that inactivation of ExoN results in decreased recombination frequency and altered recombination products. These results add yet another critical function to nsp14-ExoN, highlight the uniqueness of the evolved coronavirus replicase, and further emphasize nsp14-ExoN as a central, completely conserved, and vulnerable target for inhibitors and attenuation of SARS-CoV-2 and future emerging zoonotic CoVs.

Indexed as

COVID-19 Drug TreatmentAntiviral AgentsCoronavirus InfectionsCOVID-19ExoribonucleasesHumansRecombination, GeneticSARS-CoV-2Viral Nonstructural ProteinsVirus ReplicationAntiviral AgentsExoribonucleasesViral Nonstructural Proteins

Identifiers

PMID33465137
PMCPMC7846108
OpenAlexW3125590130

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.