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Two-dimensional diagram from contacts of COX-2 active site amino acids residues with quercetin 3,4’-diglucoside (A) and digalloylshikimic acid (C). Dashed black line—hydrogen bonds; full green lines—van der Waals interactions. In (B), the surface representation of quercetin 3,4’-diglucoside (green) and digalloylshikimic acid (blue) docking positions on COX-2 active site are shown.
