The initiation of transcription is the most important step for gene regulation in eubacteria. To
initiate transcription, RNA polymerase has to associate with a small protein, known as a σ …

The initiation of transcription is a complex process involving many different steps. These
steps are all potential control points for regulating gene expression, and many have been …

▪ Abstract The xyl genes of Pseudomonas putida TOL plasmid that specify catabolism of
toluene and xylenes are organized in four transcriptional units: the upper-operon …

The growth and persistence of rhizobia and bradyrhizobia in soils are negatively impacted
by drought conditions. In this study, we used genome-wide transcriptional analyses to obtain …

▪ Abstract This review attempts to substantiate the notion that nonlinear DNA structures allow
prokaryotic cells to evolve complex signal integration devices that, to some extent, parallel …

Transcription from two overlapping gal promoters is repressed by Gal repressor binding to
bipartite gal operators, OE and OI, which flank the promoters. Concurrent repression of the …

Chlorobenzenes are substrates not easily metabolized by existing bacteria in the
environment. Specific strains, however, have been isolated from polluted environments or in …

Various features of the regulation of pathways for biodegradation of recalcitrant compounds
by Pseudomonas provide insights into the mechanisms by which operons evolve to acquire …

Background: Transcription initiation from the two overlapping promoters of the gal operon in
Escherichia coli is negatively regulated by binding of Gal repressor (GalR) to bipartite …

The tbu regulon of Ralstonia pickettii PKO1 encodes enzymes involved in the catabolism of
toluene, benzene, and related alkylaromatic hydrocarbons. The first operon in this regulon …