Results 41 to 50 of about 6,958 (200)

Positive autoregulation of the Vibrio fischeri luxR gene. LuxR and autoinducer activate cAMP-catabolite gene activator protein complex-independent and -dependent luxR transcription.

open access: yesJournal of Biological Chemistry, 1992
The LuxR protein is a transcriptional activator involved in regulation of the genes required for bioluminescence (lux) in the marine bacterium Vibrio fischeri. Transcription of the two divergently oriented lux operons (luxR and luxICDABEG) is activated by LuxR in the presence of a diffusible inducer (autoinducer).
G S, Shadel, T O, Baldwin
openaire   +2 more sources

Bacterial Subfamily of LuxR Regulators That Respond to Plant Compounds [PDF]

open access: yesApplied and Environmental Microbiology, 2011
ABSTRACT Pseudomonas fluorescens are rhizobacteria known for their biocontrol properties. Several antimicrobial functions are crucial for this process, and the experiments described here investigate the modulation of their expression during the plant-bacterium interaction.
Sujatha, Subramoni   +8 more
openaire   +2 more sources

Whole genome sequencing and analysis reveal insights into the genetic structure, diversity and evolutionary relatedness of luxI and luxR homologs in bacteria belonging to the Sphingomonadaceae family

open access: yesFrontiers in Cellular and Infection Microbiology, 2015
Here we report the draft genomes and annotation of four N-acyl homoserine lactone (AHL)-producing members from the family Sphingomonadacae. Comparative genomic analyses of 62 Sphingomonadacae genomes were performed to gain insights into the distribution
Han Ming eGan   +5 more
doaj   +1 more source

Binding mode exploration of LuxR-thiazolidinedione analogues, e-pharmacophore-based virtual screening in the designing of LuxR inhibitors and its biological evaluation [PDF]

open access: yesJournal of Biomolecular Structure and Dynamics, 2016
Master quorum sensing (QS) regulator LuxR of Vibrio harveyi is a unique member of the TetR protein superfamily. Recent studies have demonstrated the contribution of thiazolidinedione analogues in blocking QS by decreasing the DNA-binding ability of LuxR. However, the precise mechanism of thiazolidinedione analogues binding to LuxR is still unclear.
Sundaraj, Rajamanikandan   +2 more
openaire   +2 more sources

Neighbor-Joining unrooted tree of all LuxR-containing sequences retrieved from Actinobacteria. [PDF]

open access: yes, 2012
The branches colour refers to each protein architecture: LuxR are coloured in blue; REC+LuxR are coloured in red; CHD+LuxR are coloured in yellow; TPR+LuxR are coloured in light green; Pkc+LuxR are coloured in light pink; AAA+LuxR are coloured in light ...
Catarina Lopes Santos (128629)   +3 more
core   +1 more source

Global H-NS counter-silencing by LuxR activates quorum sensing gene expression [PDF]

open access: yes, 2020
Bacteria coordinate cellular behaviors using a cell–cell communication system termed quorum sensing. In Vibrio harveyi, the master quorum sensing transcription factor LuxR directly regulates >100 genes in response to changes in population density.
Van Kessel, Julia C.   +9 more
core   +2 more sources

LuxO controls luxR expression in Vibrio harveyi : evidence for a common regulatory mechanism in Vibrio [PDF]

open access: yes, 2003
Quorum-sensing control of luminescence in Vibrio harveyi , which involves an indirect autoinducer-mediated phosphorelay signal transduction system, contrasts with the prototypical quorum-sensing system of Vibrio fischeri , in which the autoinducer and ...
Meighen, Edward A.   +3 more
core   +1 more source

A σE-Mediated Temperature Gauge Controls a Switch from LuxR-Mediated Virulence Gene Expression to Thermal Stress Adaptation in Vibrio alginolyticus. [PDF]

open access: yesPLoS Pathogens, 2016
In vibrios, the expression of virulence factors is often controlled by LuxR, the master quorum-sensing regulator. Here, we investigate the interplay between LuxR and σE, an alternative sigma factor, during the control of virulence-related gene expression
Dan Gu   +5 more
doaj   +1 more source

Chimeric LuxR Transcription Factors Rewire Natural Product Regulation [PDF]

open access: yesAngewandte Chemie, 2020
Abstract LuxR‐type transcriptional activator proteins frequently regulate the expression of biosynthetic gene clusters (BGCs). With only a fraction of bacterial BGCs being expressed under standard culturing conditions, modulation of LuxRs would provide a powerful approach to activate silent clusters.
Ruchira Mukherji   +3 more
openaire   +3 more sources

Regulation of Vibrio mimicus metalloprotease (VMP) production by the quorum-sensing master regulatory protein, LuxR [PDF]

open access: yes, 2016
Vibrio mimicus is an estuarine bacterium, while it can cause severe diarrhea, wound infection, and otitis media in humans. This pathogen secretes a relatively important toxin named V. mimicus metalloprotease (VMP).
Abdel‐Sattar, El‐Shaymaa   +2 more
core   +1 more source

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