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Structural basis for the neutralization of SARS-CoV-2 by an antibody from a convalescent patient

  • Daming Zhou
  • , Helen M.E. Duyvesteyn
  • , Cheng Pin Chen
  • , Chung Guei Huang
  • , Ting Hua Chen
  • , Shin Ru Shih
  • , Yi Chun Lin
  • , Chien Yu Cheng
  • , Shu Hsing Cheng
  • , Yhu Chering Huang
  • , Tzou Yien Lin
  • , Che Ma
  • , Jiandong Huo
  • , Loic Carrique
  • , Tomas Malinauskas
  • , Reinis R. Ruza
  • , Pranav N.M. Shah
  • , Tiong Kit Tan
  • , Pramila Rijal
  • , Robert F. Donat
  • Kerry Godwin, Karen R. Buttigieg, Julia A. Tree, Julika Radecke, Neil G. Paterson, Piyada Supasa, Juthathip Mongkolsapaya, Gavin R. Screaton, Miles W. Carroll, Javier Gilbert-Jaramillo, Michael L. Knight, William James, Raymond J. Owens, James H. Naismith, Alain R. Townsend, Elizabeth E. Fry, Yuguang Zhao, Jingshan Ren, David I. Stuart*, Kuan Ying A. Huang*
*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

233 Scopus citations

Abstract

The COVID-19 pandemic has had an unprecedented health and economic impact and there are currently no approved therapies. We have isolated an antibody, EY6A, from an individual convalescing from COVID-19 and have shown that it neutralizes SARS-CoV-2 and cross-reacts with SARS-CoV-1. EY6A Fab binds the receptor binding domain (RBD) of the viral spike glycoprotein tightly (KD of 2 nM), and a 2.6-Å-resolution crystal structure of an RBD–EY6A Fab complex identifies the highly conserved epitope, away from the ACE2 receptor binding site. Residues within this footprint are key to stabilizing the pre-fusion spike. Cryo-EM analyses of the pre-fusion spike incubated with EY6A Fab reveal a complex of the intact spike trimer with three Fabs bound and two further multimeric forms comprising the destabilized spike attached to Fab. EY6A binds what is probably a major neutralizing epitope, making it a candidate therapeutic for COVID-19.

Original languageEnglish
Pages (from-to)950-958
Number of pages9
JournalNature Structural and Molecular Biology
Volume27
Issue number10
DOIs
StatePublished - 01 10 2020

Bibliographical note

Publisher Copyright:
© 2020, The Author(s), under exclusive licence to Springer Nature America, Inc.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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