Evidence map›Paper›PMID 34822776›Full record

ArticleCell host & microbe2021

Nucleocapsid mutations R203K/G204R increase the infectivity, fitness, and virulence of SARS-CoV-2.

Haibo Wu, Na Xing, Kaiwen Meng, Beibei Fu, Weiwei Xue, Pan Dong, Wanyan Tang, Yang Xiao, Gexin Liu, Haitao Luo and 4 more

Abstract read
In one paragraph

Article in Cell host & microbe, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed, 1 pooled it
–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

143 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  20. Evolution of a fuzzy ribonucleoprotein complex in viral assembly.bioRxiv : the preprint server for biology · 2025
    Article

83 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

14 authors.

Haibo WuSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Na XingInstitute of Virology, Free University of Berlin, Robert-von-Ostertag-Str. 7-13, Berlin 14163, Germany.
Kaiwen MengCollege of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100094, China.
Beibei FuSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Weiwei XueSchool of Pharmaceutical Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Pan DongSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Wanyan TangChongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Shapingba, Chongqing 400030, China.
Yang XiaoSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Gexin LiuSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Haitao LuoSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China.
Wenzhuang ZhuCollege of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100094, China.
Xiaoyuan LinSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China. Electronic address: lxy2019@cqu.edu.cn.
Geng MengCollege of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100094, China. Electronic address: mg@cau.edu.cn.
Zhenglin ZhuSchool of Life Sciences, Chongqing University, No. 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China. Electronic address: zhuzl@cqu.edu.cn.

Funding

ANIMAL HUSBANDRY SUPPORT SERVICES FOR NIEHS27304C0002 · NIEHS · 2007 to 2008
$5.0M
Role of Mitochondrial CYP2E1 in Chemical Exposure-Driven NeurodegenerationF32ES027306 · NIEHS · DUKE UNIVERSITY · PI HARTMAN, JESSICA HELENE · 2016 to 2018
$171k
Investigation of metabolites related to manganese exposureF31ES027304 · NIEHS · UNIVERSITY OF WASHINGTON · PI BAKER, MARISSA GAYL · 2016 to 2017
$61k
NIEHS NIH HHS 27304C0002NIEHS NIH HHS 27306C0002
6 · The paper itself

Abstract

Previous work found that the co-occurring mutations R203K/G204R on the SARS-CoV-2 nucleocapsid (N) protein are increasing in frequency among emerging variants of concern or interest. Through a combination of in silico analyses, this study demonstrates that R203K/G204R are adaptive, while large-scale phylogenetic analyses indicate that R203K/G204R associate with the emergence of the high-transmissibility SARS-CoV-2 lineage B.1.1.7. Competition experiments suggest that the 203K/204R variants possess a replication advantage over the preceding R203/G204 variants, possibly related to ribonucleocapsid (RNP) assembly. Moreover, the 203K/204R virus shows increased infectivity in human lung cells and hamsters. Accordingly, we observe a positive association between increased COVID-19 severity and sample frequency of 203K/204R. Our work suggests that the 203K/204R mutations contribute to the increased transmission and virulence of select SARS-CoV-2 variants. In addition to mutations in the spike protein, mutations in the nucleocapsid protein are important for viral spreading during the pandemic.

Indexed as

Amino Acid SubstitutionGenome, ViralMutationAnimalsCell LineCoronavirus Nucleocapsid ProteinsCOVID-19CricetulusEpithelial CellsGene ExpressionGenetic FitnessHumansModels, MolecularMutagenesisPhosphoproteinsPhylogenyCoronavirus Nucleocapsid Proteinsnucleocapsid phosphoprotein, SARS-CoV-2PhosphoproteinsCOVID-19fatalityfitnessinfectivitymutationnucleocapsidR203K/G204RSARS-CoV-2virulence

Identifiers

PMID34822776
PMCPMC8590493

What OpenQuestion holds

Textmetadata
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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.