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The ligand residues are pQ1(sand), D2 (olive), I3 (purple), D4 (cyan), H5 (yellow), V6 (hot pink), F7 (orange), M8 (green), R9 (red), and F10 (blue). F7 and F10 made strong hydrophobic contacts, D4 and R9 formed an ionic network near TM6, and the N terminus made general interactions to TM3, TM4, and TM5.
