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Adiantum phy3 domain and LOV2 structures. (A) Adiantum phy3 domain structure showing the N-terminal phytochrome chromophore domain bound to a phototropin. Residues forming the LOV2 construct are marked by arrows. (B) ribbon diagram of the phy3 LOV2 structure. The FMN cofactor is shown in the chromophore-binding pocket of LOV2 and is colored by elements: carbon, green; nitrogen, blue; oxygen, red; phosphorus, pink. C966 is at the N terminus of α′A and is colored yellow.
