Title : Expression of the TOL plasmid xylS gene in Pseudomonas putida occurs from a alpha 70-dependent promoter or from alpha 70- and alpha 54-dependent tandem promoters according to the compound used for growth.

Pub. Date : 1996 Apr

PMID : 8636038






3 Functional Relationships(s)
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1 Alternatively, in cells growing on toluene or its aromatic alcohols, overexpression of xylS mediated by XylR activated by these compounds leads to overproduction of the XylS regulator, which even in the absence of benzoate effectors stimulates transcription from the meta cleavage pathway operon promoter. Toluene xylose operon regulatory protein Pseudomonas putida
2 In cells growing on toluene or benzyl alcohols, the XylS regulator is overproduced as a consequence of increased expression of the gene through the effect of the two promoters working in tandem: the newly found sigma 70-dependent promoter, whose expression is XylR and toluene independent, and the sigma 54-dependent promoter, whose expression is dependent on XylR activated by its effectors. Toluene xylose operon regulatory protein Pseudomonas putida
3 In cells growing on toluene or benzyl alcohols, the XylS regulator is overproduced as a consequence of increased expression of the gene through the effect of the two promoters working in tandem: the newly found sigma 70-dependent promoter, whose expression is XylR and toluene independent, and the sigma 54-dependent promoter, whose expression is dependent on XylR activated by its effectors. Toluene xylose operon regulatory protein Pseudomonas putida