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Characterization of the AibH2 Mn/Fe cofactor (PDB: 8FUN). Cartoon representations of the Mn*AibH1H2 protein structure at Site 0 (A), View 1 (B), and View 2 (C) of the dinuclear cofactor are shown overlaid with the anomalous density difference map at the Mn K-edge (black) and the dual-wavelength isomorphous anomalous density difference map near the Fe K-edge (yellow), each contoured at 5.0σ.
