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The four different sigma(54) factors of Rhodobacter sphaeroides are not functionally interchangeable.

Molecular microbiology - 1 Oct 2002

Poggio Sebastian, Osorio Aurora, Dreyfus Georges, Camarena Laura

Abstract excerpt

The sigma(54) factor is highly conserved in a large number of bacterial species. From the complete genome sequence of Rhodobacter sphaeroides, it was possible to identify four different sequences encoding potentially functional sigma(54) factors. In this work, we provide evidence that one of these copies (rpoN2) is specifically required to express the flagellar genes in this bacterium. A mutant strain carrying a...

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PMID: 12366832
DOI: 10.1046/j.1365-2958.2002.03158.x

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

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