Figure 2.

Sequence alignment of 12 CoV 3CLpros by ESPript 42 and the number of crystal structures of 3CLpro in PDB [Color figure can be viewed at wileyonlinelibrary.com]

Sequence alignment of 12 CoV 3CLpros by ESPript 42 and the number of crystal structures of 3CLpro in PDB [Color figure can be viewed at wileyonlinelibrary.com]