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Article

An upstream XylR- and IHF-induced nucleoprotein complex regulates the sigma 54-dependent Pu promoter of TOL plasmid.

The EMBO journal - 1 May 1991

de Lorenzo V, Herrero M, Metzke M, Timmis K N

Abstract excerpt

Transcription from promoter Pu of the upper catabolic operon of the Pseudomonas putida TOL plasmid which specifies conversion of toluene/xylenes to benzoate/toluates is activated by the TOL-encoded regulator XylR protein in the presence of substrates of the catabolic pathway and in conjunction with the sigma 54(NtrA)-containing form of RNA polymerase. This regulatory circuit was faithfully reproduced in...

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Identifiers

PMID: 2022186
DOI: 10.1002/j.1460-2075.1991.tb08056.x
PMCID: PMC452769

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Source receipt: pubmed, retrieved 7 Sept 2026.

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An upstream XylR- and IHF-induced nucleoprotein complex regulates the sigma 54-dependent Pu promoter of TOL plasmid.PMID 2022186Read ↗

Activation of the Pseudomonas TOL plasmid upper pathway operon. Identification of binding sites for the positive regulator XylR and for integration host factor protein.Semantic proximity Read ↗

Co-regulation by bent DNA. Functional substitutions of the integration host factor site at sigma 54-dependent promoter Pu of the upper-TOL operon by intrinsically curved sequences.Semantic proximity Read ↗

Genetic evidence of separate repressor and activator activities of the XylR regulator of the TOL plasmid, pWW0, of Pseudomonas putida.Semantic proximity Read ↗

A T7 RNA polymerase-based system for the construction of Pseudomonas strains with phenotypes dependent on TOL-meta pathway effectors.Semantic proximity Read ↗

VTR expression cassettes for engineering conditional phenotypes in Pseudomonas: activity of the Pu promoter of the TOL plasmid under limiting concentrations of the XylR activator protein.Semantic proximity Read ↗

The role of the interdomain B linker in the activation of the XylR protein of Pseudomonas putida.Semantic proximity Read ↗

Activation of the transcriptional regulator XylR of Pseudomonas putida by release of repression between functional domains.Semantic proximity Read ↗

XylUW, two genes at the start of the upper pathway operon of TOL plasmid pWW0, appear to play no essential part in determining its catabolic phenotype.Semantic proximity Read ↗

The IIANtr (PtsN) protein of Pseudomonas putida mediates the C source inhibition of the sigma54-dependent Pu promoter of the TOL plasmid.Semantic proximity Read ↗

In vivo drafting of single-chain antibodies for regulatory duty on the sigma54-promoter Pu of the TOL plasmid.Semantic proximity Read ↗

A la carte transcriptional regulators: unlocking responses of the prokaryotic enhancer-binding protein XylR to non-natural effectors.Semantic proximity Read ↗

Early and late responses of TOL promoters to pathway inducers: identification of postexponential promoters in Pseudomonas putida with lacZ-tet bicistronic reporters.Semantic proximity Read ↗

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