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The 3CLpro–compound interactions for the five best FDA-approved drugs and ritonavir. The interactions were analyzed and plotted with LigPlot+ [36,37]. Hydrogen bonds are indicated by orange dashed lines between the atoms involved and the donor–acceptor distance is given in Å, while hydrophobic contacts are represented by gray arcs with spokes radiating towards the ligand atoms they contact. The contacted atoms are shown with spokes radiating back.
