RT Journal Article SR Electronic T1 Massive X-ray screening reveals two allosteric drug binding sites of SARS-CoV-2 main protease JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.11.12.378422 DO 10.1101/2020.11.12.378422 A1 Sebastian Günther A1 Patrick Y. A. Reinke A1 Yaiza Fernández-García A1 Julia Lieske A1 Thomas J. Lane A1 Helen Ginn A1 Faisal H. M. Koua A1 Christiane Ehrt A1 Wiebke Ewert A1 Dominik Oberthuer A1 Oleksandr Yefanov A1 Susanne Meier A1 Kristina Lorenzen A1 Boris Krichel A1 Janine-Denise Kopicki A1 Luca Gelisio A1 Wolfgang Brehm A1 Ilona Dunkel A1 Brandon Seychell A1 Henry Gieseler A1 Brenna Norton-Baker A1 Beatriz Escudero-Pérez A1 Martin Domaracky A1 Sofiane Saouane A1 Alexandra Tolstikova A1 Thomas A. White A1 Anna Hänle A1 Michael Groessler A1 Holger Fleckenstein A1 Fabian Trost A1 Marina Galchenkova A1 Yaroslav Gevorkov A1 Chufeng Li A1 Salah Awel A1 Ariana Peck A1 Miriam Barthelmess A1 Frank Schlünzen A1 P. Lourdu Xavier A1 Nadine Werner A1 Hina Andaleeb A1 Najeeb Ullah A1 Sven Falke A1 Vasundara Srinivasan A1 Bruno Alves Franca A1 Martin Schwinzer A1 Hévila Brognaro A1 Cromarte Rogers A1 Diogo Melo A1 Jo J. Zaitsev-Doyle A1 Juraj Knoska A1 Gisel E. Peña Murillo A1 Aida Rahmani Mashhour A1 Filip Guicking A1 Vincent Hennicke A1 Pontus Fischer A1 Johanna Hakanpää A1 Jan Meyer A1 Phil Gribbon A1 Bernhard Ellinger A1 Maria Kuzikov A1 Markus Wolf A1 Gleb Borenkov A1 David von Stetten A1 Guillaume Pompidor A1 Isabel Bento A1 Saravanan Panneerselvam A1 Ivars Karpics A1 Thomas R. Schneider A1 Maria Marta Garcia Alai A1 Stephan Niebling A1 Christian Günther A1 Christina Schmidt A1 Robin Schubert A1 Huijong Han A1 Juliane Boger A1 Diana C. F. Monteiro A1 Linlin Zhang A1 Xinyuanyuan Sun A1 Jonathan Pletzer-Zelgert A1 Jan Wollenhaupt A1 Christian G. Feiler A1 Manfred S. Weiss A1 Eike-Christian Schulz A1 Pedram Mehrabi A1 Katarina Karničar A1 Aleksandra Usenik A1 Jure Loboda A1 Henning Tidow A1 Ashwin Chari A1 Rolf Hilgenfeld A1 Charlotte Uetrecht A1 Russell Cox A1 Andrea Zaliani A1 Tobias Beck A1 Matthias Rarey A1 Stephan Günther A1 Dusan Turk A1 Winfried Hinrichs A1 Henry N. Chapman A1 Arwen R. Pearson A1 Christian Betzel A1 Alke Meents YR 2020 UL http://biorxiv.org/content/early/2020/11/12/2020.11.12.378422.abstract AB The coronavirus disease (COVID-19) caused by SARS-CoV-2 is creating tremendous health problems and economical challenges for mankind. To date, no effective drug is available to directly treat the disease and prevent virus spreading. In a search for a drug against COVID-19, we have performed a massive X-ray crystallographic screen of repurposing drug libraries1 containing 5953 individual compounds against the SARS-CoV-2 main protease (Mpro), which is a potent drug target as it is essential for the virus replication2. 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 binding to Mpro. In subsequent cell-based viral reduction assays, one peptidomimetic and five non-peptidic compounds showed antiviral activity at non-toxic concentrations. Interestingly, two compounds bind outside the active site to the native dimer interface in close proximity to the S1 binding pocket. Another compound binds in a cleft between the catalytic and dimerization domain of Mpro. Neither binding site is related to the enzymatic active site and both represent attractive targets for drug development against SARS-CoV-2. This X-ray screening approach thus has the potential to help deliver an approved drug on an accelerated time-scale for this and future pandemics3.Competing Interest StatementThe authors have declared no competing interest.