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Structural Analysis of NarA2.A, box plot showing the distances between the center-of-mass of docked substrates and the iron atom. Molecular docking was conducted on NarA2 (WT and variants) with three representative substrates, using 100 sampling runs. B, the electrostatic potential surface of different variants of NarA2, depicted without substrates, with negative potential in red and positive potential in blue.
