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(a) CGA fit with oseltamivir pharmacophore features and (b) interaction of CGA with NA (PDB ID: 2HU4), compared to oseltamivir (green)-NA. Blue color residues were shown for hydrophobic interaction, while pink dotted lines show hydrogen bond interaction between residues of NA with the ligands. Orange line for cation–pi interaction between the aromatic ring of CGA and Arg152 of NA.
