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Article

Bradyrhizobium japonicum has two differentially regulated, functional homologs of the sigma 54 gene (rpoN).

Journal of bacteriology - 1 Feb 1991

Kullik I, Fritsche S, Knobel H, Sanjuan J, Hennecke H, Fischer H M

Abstract excerpt

Recognition of -24/-12-type promoters by RNA polymerase requires a special sigma factor, sigma 54 (RpoN NtrA GlnF). In the nitrogen-fixing soybean symbiont Bradyrhizobium japonicum, two functional, highly conserved rpoN genes (rpoN1 and rpoN2) were identified and sequenced. The two predicted B. japonicum RpoN protein sequences were 87% identical, and both showed different levels of homology to the RpoN proteins...

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Identifiers

PMID: 1991712
DOI: 10.1128/jb.173.3.1125-1138.1991
PMCID: PMC207233

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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