Fig. 5
From: Effect of chitooligosaccharide on the inhibition of SARS-CoV-2 main protease
The molecular modeling for the interaction between Mpro and chitooligosaccharides (CS). A Mpro is represented in the solid ribbon. B CS is displayed in a stick model and amino acid residues are displayed in the line model. The dotted yellow line denotes hydrogen bonding and the dotted purple line denotes salt-bridge