Figure 6

Molecular docking of isoliquiritigenin (ILG) (blue stick) to hD₃R (a). Close-up view of ligand binding pocket of hD₃R in complex with ILG (b). Two-dimensional binding diagram showing interactions of ILG-hD₃R complex (c). H-bond, pi-alkyl, and pi-cation interactions are shown with green, light pink, and orange dashed lines, respectively.