Figure 1 from: Syahputra G, Gustini N, Bustanussalam B, Hapsari Y, Sari M, Ardiansyah A, Bayu A, Putra MY (2021) Molecular docking of secondary metabolites from Indonesian marine and terrestrial organisms targeting SARS-CoV-2 ACE-2, M pro, and PL pro receptors. Pharmacia 68(3): 533-560. https://doi.org/10.3897/pharmacia.68.e68432

Figure 1 The structure of the Mpro SARS-CoV-2 receptor (PDB ID: 6LU7) along with the distribution of residues on the Ramachandran plot. The Mpro receptor structure is composed of 10 α-helix structures and 13 β-sheet structures. The Mpro receptor structure is ready to use in molecular docking simulations with 92.15% of the residue in the protein-forming region.