Evidence map›Paper›PMID 34171266›Full record

ArticleCell host & microbe2021

SARS-CoV-2 spike L452R variant evades cellular immunity and increases infectivity.

Chihiro Motozono, Mako Toyoda, Jiri Zahradnik, Akatsuki Saito, Hesham Nasser, Toong Seng Tan, Isaac Ngare, Izumi Kimura, Keiya Uriu, Yusuke Kosugi and 18 more

Open access · greenAbstract 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 354 papers.

0numbers the graph read from it
0cells of the map it votes in
354citing papers in PubMed
34.3field-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

354 citing papers in PubMed, 583 citations in OpenAlex.

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  9. D614G reshapes allosteric networks and opening mechanisms of SARS-CoV-2 spikes.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  20. Review

294 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

28 authors at 12 institutions in 3 countries.

Chihiro MotozonoDivision of Infection and Immunity, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Mako ToyodaDivision of Infection and Immunity, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Jiri ZahradnikDepartment of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.
Akatsuki SaitoDepartment of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan; Center for Animal Disease Control, University of Miyazaki, Miyazaki 8892192, Japan; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 8892192, Japan.
Hesham NasserDivision of Molecular Virology and Genetics, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan; Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia 41511, Egypt.
Toong Seng TanDivision of Infection and Immunity, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Isaac NgareDivision of Infection and Immunity, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Izumi KimuraDivision of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 1088639, Japan.
Keiya UriuDivision of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 1088639, Japan.
Yusuke KosugiDivision of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 1088639, Japan.
Yuan YueDivision of Molecular Virology and Genetics, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Ryo ShimizuDivision of Molecular Virology and Genetics, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan.
Jumpei ItoDivision of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 1088639, Japan.
Shiho ToriiDepartment of Molecular Virology, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan; Division of Microbiology and Immunology, Center for Infectious Diseases Education and Research, Osaka University, Osaka 5650871, Japan; Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan.
Akiko YonekawaDepartment of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 8128582, Japan.
Nobuyuki ShimonoDepartment of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 8128582, Japan.
Yoji NagasakiDivision of Infectious Diseases, Clinical Research Institute, National Hospitalization Organization, Kyushu Medical Center, Fukuoka 8108563, Japan.
Rumi MinamiInternal Medicine, Clinical Research Institute, National Hospital Organization, Kyushu Medical Center, Fukuoka 8108563, Japan.
Takashi ToyaHematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 1138677, Japan.
Noritaka SekiyaDepartment of Infection Prevention and Control, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 1138677, Japan; Department of Clinical Laboratory, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 1138677, Japan.
Takasuke FukuharaDepartment of Microbiology and Immunology, Graduate School of Medicine, Hokkaido University, Hokkaido 0608638, Japan.
Yoshiharu MatsuuraDepartment of Molecular Virology, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan; Division of Microbiology and Immunology, Center for Infectious Diseases Education and Research, Osaka University, Osaka 5650871, Japan; Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan.
Gideon SchreiberDepartment of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.
Genotype to Phenotype Japan (G2P-Japan) Consortium
Terumasa IkedaDivision of Molecular Virology and Genetics, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan. Electronic address: ikedat@kumamoto-u.ac.jp.
So NakagawaDepartment of Molecular Life Science, Tokai University School of Medicine, Kanagawa 2591193, Japan; CREST, Japan Science and Technology Agency, Saitama 3220012, Japan. Electronic address: so@tokai.ac.jp.
Takamasa UenoDivision of Infection and Immunity, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 8600811, Japan. Electronic address: uenotaka@kumamoto-u.ac.jp.
Kei SatoDivision of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 1088639, Japan; CREST, Japan Science and Technology Agency, Saitama 3220012, Japan. Electronic address: keisato@g.ecc.u-tokyo.ac.jp.
Kumamoto University · JPNational Institute of Infectious Diseases · JPKyushu University · JPNational Kyushu Medical Center · JPOsaka University · JPTokyo Metropolitan Komagome Hospital · JPWeizmann Institute of Science · ILHokkaido University · JPJapan Science and Technology Agency · JPSuez Canal University · EGTokai University · JPUniversity of Miyazaki · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many SARS-CoV-2 variants with naturally acquired mutations have emerged. These mutations can affect viral properties such as infectivity and immune resistance. Although the sensitivity of naturally occurring SARS-CoV-2 variants to humoral immunity has been investigated, sensitivity to human leukocyte antigen (HLA)-restricted cellular immunity remains largely unexplored. Here, we demonstrate that two recently emerging mutations in the receptor-binding domain of the SARS-CoV-2 spike protein, L452R (in B.1.427/429 and B.1.617) and Y453F (in B.1.1.298), confer escape from HLA-A24-restricted cellular immunity. These mutations reinforce affinity toward the host entry receptor ACE2. Notably, the L452R mutation increases spike stability, viral infectivity, viral fusogenicity, and thereby promotes viral replication. These data suggest that HLA-restricted cellular immunity potentially affects the evolution of viral phenotypes and that a further threat of the SARS-CoV-2 pandemic is escape from cellular immunity.

Indexed as

Immunity, CellularAngiotensin-Converting Enzyme 2COVID-19Genome, ViralHumansMutationPhylogenyProtein BindingSARS-CoV-2Spike Glycoprotein, CoronavirusViral ProteinsVirus ReplicationACE2 protein, humanAngiotensin-Converting Enzyme 2Spike Glycoprotein, Coronavirusspike protein, SARS-CoV-2Viral ProteinsB.1.1.298B.1.427/429cellular immunityCOVID-19L452Rnaturally occurring variantsreceptor-binding motifSARS-CoV-2spike proteinY453F

Identifiers

PMID34171266
PMCPMC8205251
OpenAlexW3170097501

What OpenQuestion holds

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Registered trials

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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.