The SARS-CoV-2 main protease (Mpro) is one of two cysteine proteases essential for viral replication. Here, the authors determine the crystal structure of an Mpro acyl intermediate with its native C-terminal autocleavage sequence and the structure of a product bound active site mutant (C145A), which are of interest for antiviral drug development.
- Jaeyong Lee
- Liam J. Worrall
- Natalie C. J. Strynadka