Fig. 4
From: SARS-CoV-2 host cell entry: an in silico investigation of potential inhibitory roles of terpenoids
Visualization of interacting amino acid residues of human ACE2 with ligands in 3D (i) and 2D (ii) representation. Ligands in stick representation are presented in different colors. a Green: S1 (MLN-4760). b Read: 24-methylene cycloartenol. c Blue: isoiguesterin. Types of interactions are represented by green-dotted lines: H-bond interactions, light purple-dotted line: hydrophobic interactions (Pi-Alkyl, Alkyl, and pi-stacking) purple-dotted line: Pi-Pi T-shaped, yellow-dotted lines: Pi-sulphur interactions, pi-stacking interactions. Three-letter amino acids are in red color