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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Rhizobium meliloti ntrA (rpoN) gene is required for diverse metabolic functions.

We report the identification and cloning of an ntrA-like (glnF rpoN) gene of Rhizobium meliloti and show that the R. meliloti ntrA product (NtrA) is required for C4-dicarboxylate transport as well as for nitrate assimilation and symbiotic nitrogen fixation. DNA sequence analysis showed that R. meliloti NtrA is 38% homologous with Klebsiella pneumoniae NtrA. Subcloning and complementation analysis suggested that the R. meliloti ntrA promoter lies within 125 base pairs of the initiation codon and may be constitutively expressed.[1]

References

  1. Rhizobium meliloti ntrA (rpoN) gene is required for diverse metabolic functions. Ronson, C.W., Nixon, B.T., Albright, L.M., Ausubel, F.M. J. Bacteriol. (1987) [Pubmed]
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