Molecular interaction and inhibition of SARS-CoV-2 binding to the ACE2 receptor

Jinsung Yang, Simon J. L. Petitjean, Melanie Koehler, Qingrong Zhang, Andra C. Dumitru, Wenzhang Chen, Sylvie Derclaye, Stéphane P. Vincent, Patrice Soumillion and David Alsteens ()
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Jinsung Yang: Université Catholique de Louvain
Simon J. L. Petitjean: Université Catholique de Louvain
Melanie Koehler: Université Catholique de Louvain
Qingrong Zhang: Université Catholique de Louvain
Andra C. Dumitru: Université Catholique de Louvain
Wenzhang Chen: University of Namur
Sylvie Derclaye: Université Catholique de Louvain
Stéphane P. Vincent: University of Namur
Patrice Soumillion: Université Catholique de Louvain
David Alsteens: Université Catholique de Louvain

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract Study of the interactions established between the viral glycoproteins and their host receptors is of critical importance for a better understanding of virus entry into cells. The novel coronavirus SARS-CoV-2 entry into host cells is mediated by its spike glycoprotein (S-glycoprotein), and the angiotensin-converting enzyme 2 (ACE2) has been identified as a cellular receptor. Here, we use atomic force microscopy to investigate the mechanisms by which the S-glycoprotein binds to the ACE2 receptor. We demonstrate, both on model surfaces and on living cells, that the receptor binding domain (RBD) serves as the binding interface within the S-glycoprotein with the ACE2 receptor and extract the kinetic and thermodynamic properties of this binding pocket. Altogether, these results provide a picture of the established interaction on living cells. Finally, we test several binding inhibitor peptides targeting the virus early attachment stages, offering new perspectives in the treatment of the SARS-CoV-2 infection.

Date: 2020
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DOI: 10.1038/s41467-020-18319-6

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