Bacteria often have multiple copies of ribosomal RNA (rrn) genes in their genomes. The
presence of multiple rrn operons suggests an advantage to the organism, perhaps through …

In bacteria, genes are often expressed from multiple promoters to allow for a greater
spectrum of regulation. Transcription of rRNA genes in Escherichia coli uses two promoters …

The model prokaryote Escherichia coli contains seven copies of the rRNA operon in the
genome. The presence of multiple rRNA operons is an advantage for increasing the level of …

We have analyzed the relative activities of the Escherichia coli ribosomal RNA promoters P1
and P2 in vivo under different physiological conditions. Promoter efficiencies were …

A broad-host-range vector that expresses a unique artificial RNA in Pseudomonas putida
has been developed. This vector was derived from the plasmid pBBR1MCS and …

The three ribosomal RNA operons present in the facultative photoheterotroph Rhodobacter
sphaeroides were identified, cloned and sequenced. DNA sequence analysis has identified …

Gene‐inactivation techniques were employed to construct a eubacterial organism
harbouring a single functional rRNA operon. This mutant of Mycobacterium smegmatis …

We have extended our previous studies of the DNA sequences required for growth rate-
dependent control of rRNA transcription in Escherichia coli. Utilizing a reporter system …

The seven rRNA operons in Escherichia coli each contain two promoters, rrn P1 and rrn P2.
Most previous studies have focused on the rrn P1 promoters. Here we report a systematic …

The mutS-rpoS region is known to be a highly polymorphic segment of the chromosome
owing to horizontal gene transfer and evolutionary processes. In Pseudomonas, mutS-fdxA …