Nature Communications (Dec 2022)

Force-tuned avidity of spike variant-ACE2 interactions viewed on the single-molecule level

  • Rong Zhu,
  • Daniel Canena,
  • Mateusz Sikora,
  • Miriam Klausberger,
  • Hannah Seferovic,
  • Ahmad Reza Mehdipour,
  • Lisa Hain,
  • Elisabeth Laurent,
  • Vanessa Monteil,
  • Gerald Wirnsberger,
  • Ralph Wieneke,
  • Robert Tampé,
  • Nikolaus F. Kienzl,
  • Lukas Mach,
  • Ali Mirazimi,
  • Yoo Jin Oh,
  • Josef M. Penninger,
  • Gerhard Hummer,
  • Peter Hinterdorfer

DOI
https://doi.org/10.1038/s41467-022-35641-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 17

Abstract

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Combining high-speed AFM, single molecule recognition force spectroscopy, and molecular dynamics simulations Zhu, Canena, Sikora et al. characterize the interaction dynamics of the trimeric spike protein of SARS-CoV-2 wt, and delta and omicron variants with its entry receptor ACE2. While delta variant increases avidity by multivalent binding to ACE2, omicron variant shows an extended binding lifetime.