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Crystal structure of SARS-CoV-2 main protease provides a basis for design of improved a-ketoamide inhibitors

Linlin Zhang, Daizong Lin, Xinyuanyuan Sun, Ute Curth, Christian Drosten, Lucie Sauerhering, Stephan Becker, Katharina Rox, Rolf Hilgenfeld*

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2) is a global health emergency. An attractive drug target among coronaviruses is the main protease (Mpro, also called 3CLpro) because of its essential role in processing the polyproteins that are translated from the viral RNA. We report the x-ray structures of the unliganded SARS-CoV-2 Mpro and its complex with an a-ketoamide inhibitor. This was derived from a previously designed inhibitor but with the P3-P2 amide bond incorporated into a pyridone ring to enhance the half-life of the compound in plasma. On the basis of the unliganded structure, we developed the lead compound into a potent inhibitor of the SARS-CoV-2 Mpro. The pharmacokinetic characterization of the optimized inhibitor reveals a pronounced lung tropism and suitability for administration by the inhalative route.

OriginalspracheEnglisch
ZeitschriftScience
Jahrgang368
Ausgabenummer6489
Seiten (von - bis)409-412
Seitenumfang4
ISSN0036-8075
DOIs
PublikationsstatusVeröffentlicht - 24.04.2020

Fördermittel

We thank Y. Kusov and G. Hansen, as well as A. Aljnabi, for determining the inhibitory activities of compounds in a SARS-CoV replicon and against recombinant MERS-CoV Mpro, respectively; T. Biet for recording 13C NMR spectra; A. Ahlers, J. Schreiber, and L. Litz for excellent technical assistance; K. Chen for continuous organizational support; and the staff at beamline 14.2 of BESSY II, Berlin, Germany, for help with diffraction data collection. Funding: We thank the German Center for Infection Research (DZIF) for financial support (projects TTU01, grant 8011801806, and TTU09, grant 8004709710). Author contributions: Conceptualization:

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

  1. SDG 3 – Gesundheit und Wohlergehen
    SDG 3 – Gesundheit und Wohlergehen

Strategische Forschungsbereiche und Zentren

  • Forschungsschwerpunkt: Infektion und Entzündung - Zentrum für Infektions- und Entzündungsforschung Lübeck (ZIEL)

DFG-Fachsystematik

  • 2.11-01 Biochemie

Coronavirus-Bezug

  • Forschung zu SARS-CoV-2 / COVID-19

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