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Conservation of nitrogenase MoFe-protein P-cluster ligands in nitrogenase-like enzymes
Residues are numbered according to: NifD, NifK, NifE, NifN from A. vinelandii, ChlN, ChlB from T. elongatus, BchY, BchZ from R. sphaeroides, NflD from M. jannaschii. Arrows indicate equivalent residues within the (hetero)dimers. Structural superposition confirms the equivalence for ChlN/ChlB and NifD/NifK.
