Evidence map›Paper›PMID 34210893›Full record

ArticleScience (New York, N.Y.)2021

SARS-CoV-2 immune evasion by the B.1.427/B.1.429 variant of concern.

Matthew McCallum, Jessica Bassi, Anna De Marco, Alex Chen, Alexandra C Walls, Julia Di Iulio, M Alejandra Tortorici, Mary-Jane Navarro, Chiara Silacci-Fregni, Christian Saliba and 22 more

Abstract 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 311 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
311citing papers in PubMed, 2 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

311 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. COVID-19 pandemic: the delta variant, T-cell responses, and the efficacy of developing vaccines.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2022
    Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Viral syncytia evolve to resist interferon.Nature communications · 2026
    Article
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  7. Article
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  15. Review
  16. Article
  17. Structural Immunology of SARS-CoV-2.Immunological reviews · 2025
    Review
  18. Review
  19. Article
  20. Article

251 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

32 authors.

Matthew McCallum *Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0001-8398-8330
Jessica Bassi *Humabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0002-4723-6892
Anna De Marco *Humabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0001-9641-4838
Alex Chen *Vir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0003-2620-5066
Alexandra C Walls *Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0002-9636-8330
Julia Di IulioVir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0001-9343-127X
M Alejandra TortoriciDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0002-2260-2577
Mary-Jane NavarroDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0001-5716-459X
Chiara Silacci-FregniHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.
Christian SalibaHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0003-0100-6976
Kaitlin R SprouseDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0003-0007-2226
Maria AgostiniVir Biotechnology, San Francisco, CA 94158, USA.
Dora PintoHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.
Katja CulapHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0002-0956-0018
Siro BianchiHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0002-5100-8905
Stefano JaconiHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.
Elisabetta CameroniHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0002-9102-8943
John E BowenDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.ORCID 0000-0003-3590-9727
Sasha W TillesCenter for Emerging and Re-emerging Infectious Diseases, Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.ORCID 0000-0002-6877-1341
Matteo Samuele PizzutoHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.ORCID 0000-0001-5776-654X
Sonja Bernasconi GuastallaIndependent physician, 6828 Balerna, Switzerland.ORCID 0000-0002-8971-2957
Giovanni BonaClinical Research Unit, Clinica Luganese Moncucco, 6900 Lugano, Switzerland.ORCID 0000-0003-0771-5431
Alessandra Franzetti PellandaClinical Research Unit, Clinica Luganese Moncucco, 6900 Lugano, Switzerland.ORCID 0000-0002-0769-2500
Christian GarzoniClinic of Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco, 6900 Lugano, Switzerland.ORCID 0000-0002-0832-2376
Wesley C Van VoorhisCenter for Emerging and Re-emerging Infectious Diseases, Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.ORCID 0000-0001-6141-2015
Laura E RosenVir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0002-8030-0219
Gyorgy SnellVir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0003-1475-659X
Amalio TelentiVir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0001-6290-7677
Herbert W VirginVir Biotechnology, San Francisco, CA 94158, USA.ORCID 0000-0001-8580-7628
Luca PiccoliHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland. lpiccoli@vir.bio dcorti@vir.bio dveesler@uw.edu.ORCID 0000-0002-1085-6502
Davide CortiHumabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland. lpiccoli@vir.bio dcorti@vir.bio dveesler@uw.edu.ORCID 0000-0002-5797-1364
David VeeslerDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA. lpiccoli@vir.bio dcorti@vir.bio dveesler@uw.edu.ORCID 0000-0002-6019-8675

Funding

University of Washington Arboviral Research Network (UWARN)U01AI151698 · NIAID · UNIVERSITY OF WASHINGTON · PI Michael Gale, PETER MACGARR RABINOWITZ · 2020 to 2026
$13.3M
Unraveling the bat humoral immune response against zoonotic viruses to guide the design of next-generation therapeuticsDP1AI158186 · NIAID · UNIVERSITY OF WASHINGTON · PI VEESLER, DAVID · 2020 to 2024
$5.4M
Acquisition of a high resolution, high throughput cryo-electron microscopeS10OD023476 · OD · UNIVERSITY OF WASHINGTON · PI KOLLMAN, JUSTIN M · 2017 to 2017
$2.0M
NIAID NIH HHS DP1 AI158186NIAID NIH HHS HHSN272201700059CNIAID NIH HHS U01 AI151698NIH HHS S10 OD023476
6 · The paper itself

Abstract

A novel variant of concern (VOC) named CAL.20C (B.1.427/B.1.429), which was originally detected in California, carries spike glycoprotein mutations S13I in the signal peptide, W152C in the N-terminal domain (NTD), and L452R in the receptor-binding domain (RBD). Plasma from individuals vaccinated with a Wuhan-1 isolate-based messenger RNA vaccine or from convalescent individuals exhibited neutralizing titers that were reduced 2- to 3.5-fold against the B.1.427/B.1.429 variant relative to wild-type pseudoviruses. The L452R mutation reduced neutralizing activity in 14 of 34 RBD-specific monoclonal antibodies (mAbs). The S13I and W152C mutations resulted in total loss of neutralization for 10 of 10 NTD-specific mAbs because the NTD antigenic supersite was remodeled by a shift of the signal peptide cleavage site and the formation of a new disulfide bond, as revealed by mass spectrometry and structural studies.

Indexed as

Immune Evasion2019-nCoV Vaccine mRNA-1273Amino Acid SubstitutionAntibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralAntigens, ViralBNT162 VaccineCOVID-19COVID-19 VaccinesCryoelectron MicroscopyHumansModels, MolecularMutationNeutralization TestsProtein Conformation2019-nCoV Vaccine mRNA-1273Antibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralAntigens, ViralBNT162 VaccineCOVID-19 VaccinesProtein SubunitsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID34210893
PMCPMC9835956

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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.