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Hydrogen bond analysis (A) XP_028890156.1 system, (B) XP_028891672.1 system, and (C) XP_028891858.1 system with Caledonixanthone E (red color), Glaucine (orange color) Jatrorrhizine (blue color) and viniferin (green color). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
