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. 2022 Jun 16;20(6):399. doi: 10.3390/md20060399

Figure 3.

Figure 3

The docking poses of the marine aldehyde derivative-3C-like protease of SARS-CoV-2. The 3D and 2D diagram of the complexes to 3C-like protease with MAD-4 (A), MAD-2 (B), MAD-1 (C), and MAD-11 (D). The 3C-like protease was expressed as a ribbon model tagging the amino acid. The marine aldehyde derivatives are shown as a gray and red stick model, and the binding surface is expressed in terms of hydrogen bonds. The 2D diagram of the marine aldehyde derivative–3C-like protease complexes were combined as hydrogen bond and/or pi bond.