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Close-up view of the interactions between SARS-CoV-2 Mpro with calpeptin and carmofur. Close-up view of interaction between SARS-CoV-2 Mpro and inhibitors in crystal structures. Mpro is shown as cartoon representation, with residues involved in the interaction shown as sticks. Inhibitors are shown as sticks. Hydrogen bonds were labeled with dashed lines. (A) Calpeptin (PDB: 7AKU), violet. (B) Carmofur (PDB: 7BUY), orange.
