Fig. 2.

Crystal structure of SARS-CoV M^prowith baicalein (PDB code7XAX). (A) Overview of homodimers shown as cartoon. (B) The binding pocket of SARS-CoV M^pro with baicalein. Baicalein is shown in purple. (C) The structure of SARS-CoV M^pro with baicalein. SARS-CoV is shown in yellow and baicalein is shown in purple. Oxygen atoms are shown in red. (D) Interactions of SARS-CoV with baicalein (purple). Residues as well as the baicalein are shown as sticks and hydrogen bonds are represented by dashed lines. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)