Expression of regulatory nif genes in Rhodobacter capsulatus.

  title={Expression of regulatory nif genes in Rhodobacter capsulatus.},
  author={Philipp H{\"u}bner and John Willison and Paulette M. Vignais and Thomas A. Bickle},
  journal={Journal of bacteriology},
  volume={173 9},
Translational fusions of the Escherichia coli lacZ gene to Rhodobacter capsulatus nif genes were constructed in order to determine the regulatory circuit of nif gene expression in R. capsulatus, a free-living photosynthetic diazotroph. The expression of nifH, nifA (copies I and II), and nifR4 was measured in different regulatory mutant strains under different physiological conditions. The expression of nifH and nifR4 (the analog of ntrA in Klebsiella pneumoniae) depends on the NIFR1/R2 system… CONTINUE READING

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