Characterization of a tungsten-substituted nitrogenase isolated from Rhodobacter capsulatus.

@article{Siemann2003CharacterizationOA,
  title={Characterization of a tungsten-substituted nitrogenase isolated from Rhodobacter capsulatus.},
  author={Stefan Siemann and Klaus F. Schneider and Mareke Oley and Achim M{\"u}ller},
  journal={Biochemistry},
  year={2003},
  volume={42 13},
  pages={
          3846-57
        }
}
In the phototrophic non-sulfur bacterium Rhodobacter capsulatus, the biosynthesis of the conventional Mo-nitrogenase is strictly Mo-regulated. Significant amounts of both dinitrogenase and dinitrogenase reductase were only formed when the growth medium was supplemented with molybdate (1 microM). During cell growth under Mo-deficient conditions, tungstate, at high concentrations (1 mM), was capable of partially (approximately 25%) substituting for molybdate in the induction of nitrogenase… CONTINUE READING
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