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Interaction of docked CMNPD13046 (orange stick representation) and CMNPD17868 (cyan stick representation) with DPP-4. (A) 6B1E-CMNPD13046; (B) 5I7U-CMNPD13046; (C) 5T4E-CMNPD13046; (D) 6B1E-CMNPD17868; (E) 5I7U-CMNPD17868; and (F) 5T4E-CMNPD17868. Hydrogen bonds, π-π interactions, π-cation and salt bridges are represented as black, green, pink and red dashed lines, respectively.
