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. 2022 Aug 6;5:791. doi: 10.1038/s42003-022-03764-4

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Fig. 6 — Docking models of three FdRs in complex with SelFdx1499 (a), Adx (b), and Pdx (c). The structures of FdR-Fdx complexes are shown as cartoon with different colors. The key interacting residues on FdR-Fdx interfaces are shown as sticks in yellow and green, respectively. FAD is shown as sticks in cyan. The Fe₂S₂ cluster is shown as spheres. The shortest FAD-Fe₂S₂ distances (Å) are indicated by dashed red lines.