Fig. 3: Overall architecture of niacin, acipimox, MK6892, GSK256073 and MMF bound GPR109A-G protein complexes.

Map and ribbon diagram of the ligand-bound GPR109A-Go complexes (front view) and the cryo-EM densities of the ligands (sticks) are depicted as transparent surface representations. a niacin-GPR109A-Go: Light coral: GPR109A, blue violet: miniGαo, rosy brown: Gβ1, chartreuse: Gɣ2, gray: ScFv16, b acipimox-GPR109A-Go: medium aquamarine: GPR109A, blue violet: miniGαo, rosy brown: Gβ1, chartreuse: Gɣ2, gray: ScFv16, c MK6892-GPR109A-Go: olive drab: GPR109A, blue violet: miniGαo, rosy brown: Gβ1, chartreuse: Gɣ2, gray: ScFv16, d GSK256073-GPR109A-Go: Steel blue: GPR109A, blue violet: miniGαo, rosy brown: Gβ1, chartreuse: Gɣ2, gray: ScFv16, e MMF-GPR109A-Go: Dark golden rod: GPR109A, blue violet: miniGαo, rosy brown: Gβ1, chartreuse: Gɣ2, gray: ScFv16.