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Showing 1 to 6 of 6 for “"lux box"”.
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The Influence of Changes In theMolecular Structure of N-Acylhomoserine Lactones On the Complexation and Dna-Binding of Luxr Protein
… range of Gram-negative Proteobacteria possess LuxR-type transcriptional regulatory proteins which can perceive and bind cognate autoinducer N-acylhomoserine lactones (AHLs), thereby inducing a conformational change and subsequently binding to lux box-like target genes to regulate transcription. …
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Transcriptional Control during Quorum Sensing by LuxR and LuxR Homologues
… of Vibrio fischeri activates the luminescence (lux) operon when the autoinducer signaling molecule (N-3-oxohexanoyl homoserine lactone) is recognized and bound by the activator protein LuxR. LuxR subsequently binds to the lux box centered at à 42.5 bp upstream of the transcription initiation …
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Molecular and transcriptomic studies of quorum sensing in Chromobacterium subtsugae
… research had shown that the CdeAB-OprM efflux system contributes to antibiotic resistance in C. subtsugae and that this system is controlled by the CviI-R QS system. Here, we show that the cdeAB-oprM genes are repressed by an adjacently encoded TetR-family transcriptional regulator, CdeR. …
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Role of region 4 of the sigma 70 subunit of RNA polymerase in transcriptional activation of the lux operon during quorum sensing
… dependent activation of the luminescence (lux) genes of V. fischeri relies on the formation of a complex between the autoinducer molecule, N-(3-oxohexanoyl) homoserine lactone, and the autoinducer-dependent transcriptional activator LuxR. LuxR, a 250 amino acid polypeptide, binds to a site …
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Analysis of the Regulons Controlled by Transcriptional Regulators LuxR and LitR in Vibrio fischeri
… analysis previously identified several non-Lux proteins in V. fischeri MJ-100 whose expression was dependent on LuxR and 3-oxo-hexanoyl-L-homoserine lactone (3-oxo-C6-HSL). A lacZ reporter was used to show that the promoters for qsrP, acfA, and ribB were directly activated via …
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Amino Acid Residues in LuxR Critical for its Mechanism of Transcriptional Activation during Quorum Sensing
… the N-terminal domain of a regulatory protein, LuxR. In response to autoinducer binding, LuxR is believed to undergo a conformational change that allows the C-terminal domain to activate transcription of the luminescence or <I>lux</I> operon. To further understand the mechanism of LuxR-dependent …