Open Access
Open access
volume 372 issue 6542 pages 642-646

X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease

Julia Lieske 1
T.M. Lane 1
Wiebke Ewert 1
Oleksandr Yefanov 1
Susanne Meier 5, 6
Luca Gelisio 1
Ilona Dunkel 9
Brandon Seychell 10
Henry Gieseler 5, 6
Brenna Norton Baker 11, 12
Beatriz Escudero-Pérez 2
Martin Domaracky 1
Anna Hänle 1
Michael Groessler 1
Fabian Trost 1
Marina Galchenkova 1
Yaroslav Gevorkov 1, 14
Chufeng Li 1
Salah Awel 1
Ariana Peck 15
Miriam Barthelmess 1
P. Lourdu Xavier 1, 11
Nadine Werner 16
Hina Andaleeb 16
Najeeb Ullah 16
Sven Falke 16
Bruno Alves França 16
Martin Schwinzer 16
Hévila Brognaro 16
Cromarte Rogers 5, 6
Diogo Melo 5, 6
Juraj Knoska 1
Aida Rahmani Mashhour 1
V. Hennicke 1
Johanna Hakanpää 13
Jan Meyer 13
Philip Gribbon 17
Maria Kuzikov 17
Markus Wolf 17
Gleb Bourenkov 19
Guillaume Pompidor 19
Isabel Bento 19
Saravanan Panneerselvam 19
Ivars Karpics 19
Maria Marta Garcia Alai 19
Christian Gunther 19
Huijong Han 7
Juliane Boger 20
Linlin Zhang 20, 22
Xinyuanyuan Sun 20, 22
Jonathan Pletzer Zelgert 4
M Weiss 23
Eike Schulz 11
Katarina Karničar 24, 25
Aleksandra Usenik 24, 25
Jure Loboda 24
Henning Tidow 5, 26
Ashwin Chari 27
Rolf Hilgenfeld 20, 22
Tobias Beck 5, 10
D. C. TURK 24, 25
Winfried Hinrichs 16, 29
H. Chapman 1, 5, 30
Arwen R Pearson 5, 6
Christian Betzel 5, 16
18
 
Dompé Farmaceutici SpA, 67100 L’Aquila, Italy.
21
 
Hauptmann Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA.
25
 
Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins, Jamova 39, 1000 Ljubljana, Slovenia.
Publication typeJournal Article
Publication date2021-05-07
scimago Q1
wos Q1
SJR10.416
CiteScore48.4
Impact factor45.8
ISSN00368075, 10959203
Multidisciplinary
Abstract
A large-scale screen to target SARS-CoV-2 The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genome is initially expressed as two large polyproteins. Its main protease, Mpro, is essential to yield functional viral proteins, making it a key drug target. Günther et al. used x-ray crystallography to screen more than 5000 compounds that are either approved drugs or drugs in clinical trials. The screen identified 37 compounds that bind to Mpro. High-resolution structures showed that most compounds bind at the active site but also revealed two allosteric sites where binding of a drug causes conformational changes that affect the active site. In cell-based assays, seven compounds had antiviral activity without toxicity. The most potent, calpeptin, binds covalently in the active site, whereas the second most potent, pelitinib, binds at an allosteric site. Science, this issue p. 642 A repurposed drug-library screen reveals two allosteric drug binding sites of the SARS-CoV-2 main protease. The coronavirus disease (COVID-19) caused by SARS-CoV-2 is creating tremendous human suffering. To date, no effective drug is available to directly treat the disease. In a search for a drug against COVID-19, we have performed a high-throughput x-ray crystallographic screen of two repurposing drug libraries against the SARS-CoV-2 main protease (Mpro), which is essential for viral replication. In contrast to commonly applied x-ray fragment screening experiments with molecules of low complexity, our screen tested already-approved drugs and drugs in clinical trials. From the three-dimensional protein structures, we identified 37 compounds that bind to Mpro. In subsequent cell-based viral reduction assays, one peptidomimetic and six nonpeptidic compounds showed antiviral activity at nontoxic concentrations. We identified two allosteric binding sites representing attractive targets for drug development against SARS-CoV-2.
Found 
Found 

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Günther S. et al. X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease // Science. 2021. Vol. 372. No. 6542. pp. 642-646.
GOST all authors (up to 50) Copy
Günther S. et al. X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease // Science. 2021. Vol. 372. No. 6542. pp. 642-646.
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BibTex (up to 50 authors) Copy
@article{2021_Günther,
author = {Sebastian Günther and Patrick Reinke and Yaiza Fernández García and Julia Lieske and T.M. Lane and Helen Mary Ginn and Faisal H. M. Koua and Christiane Ehrt and Wiebke Ewert and Dominik Oberthür and Oleksandr Yefanov and Susanne Meier and Kristina Lorenzen and Boris Krichel and Janine-Denise Kopicki and Luca Gelisio and Wolfgang Brehm and Ilona Dunkel and Brandon Seychell and Henry Gieseler and Brenna Norton Baker and Beatriz Escudero-Pérez and Martin Domaracky and Sofiane Saouane and Alexandra Tolstikova and Thomas A. White and Anna Hänle and Michael Groessler and Holger Fleckenstein and Fabian Trost and Marina Galchenkova and Yaroslav Gevorkov and Chufeng Li and Salah Awel and Ariana Peck and Miriam Barthelmess and Frank Schlünzen and P. Lourdu Xavier and Nadine Werner and Hina Andaleeb and Najeeb Ullah and Sven Falke and Vasundara Srinivasan and Bruno Alves França and Martin Schwinzer and Hévila Brognaro and Cromarte Rogers and Diogo Melo and Joanna J Zaitseva Doyle and Juraj Knoska and others},
title = {X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease},
journal = {Science},
year = {2021},
volume = {372},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {may},
url = {https://doi.org/10.1126/science.abf7945},
number = {6542},
pages = {642--646},
doi = {10.1126/science.abf7945}
}
MLA
Cite this
MLA Copy
Günther, Sebastian, et al. “X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease.” Science, vol. 372, no. 6542, May. 2021, pp. 642-646. https://doi.org/10.1126/science.abf7945.