The cellular levels of the alternative sigma factor σ54 of Pseudomonas putida have been
examined in a variety of growth stages and culture conditions with a single-chain Fv …

The activity of the toluene-responsive ς54 Pu promoter of the pWW0 TOL plasmid of
Pseudomonas putida is down-regulated in vivo during exponential growth in rich medium …

In the presence of m-xylene, the Pu promoter of the TOL plasmid of Pseudomonas putida is
activated by the prokaryotic enhancer-binding protein XylR. The intervening DNA segment …

Summary σ54 is unique among the bacterial sigma factors. Besides not being related in
sequence with the rest of such factors, its mechanism of transcription initiation is completely …

The σ54‐dependent Pu promoter of the TOL plasmid pWWO of Pseudomonas putida
becomes activated by the prokaryotic enhancer‐binding XyIR protein when cells encounter …

The effect of FtsH, an essential inner membrane‐bound protease, in the regulation of the
σ54‐dependent Pu promoter has been examined in vivo. Escherichia coli cells lacking FtsH …

The main sigma factor activating gene expression, necessary in stationary phase and under
stress conditions, is ςS. In contrast to other minor sigma factors, RNA polymerase …

A mathematical model was developed to describe the physiological co-regulation of two
Pseudomonasσ54-dependent promoter/regulator systems, Pu/XylR and Po/DmpR of …

By using mini-Tn5 transposon mutagenesis, two mutants of Pseudomonas putida ATCC
12633 were isolated which showed a marked increase in their sensitivity to carbon …

Strains of Escherichia coli which lack detectable guanosine 3', 5'-bispyrophosphate (ppGpp)
display a pleiotropic phenotype that in some respects resembles that of rpoS (katF) mutants …