SEARCH Articles Figures Tables Cofactor Molybdenum cofactor nitrogenase complexes Nitrogenase Nitrogenase MoFe protein cofactor Nitrogenase cofactor, FeMoco Nitrogenase molybdenum, cofactor Nitrogenase molybdenum-iron protein FeMo-cofactor Nitrogenase, iron-molybdenum cofactor The Active Site of Nitrogenase FeMo-Cofactor