Results 21 to 30 of about 6,063 (169)
Modeling Analysis of Signal Sensitivity and Specificity by Vibrio fischeri LuxR Variants. [PDF]
PLoS ONE, 2015 The LuxR protein of the bacterium Vibrio fischeri belongs to a family of transcriptional activators that underlie pheromone-mediated signaling by responding to acyl-homoserine lactones (-HSLs) or related molecules. V. fischeri produces two acyl-HSLs, N-3-
Deanna M Colton +2 more
doaj +1 more source
The Vibrio fischeri LuxR protein is capable of bidirectional stimulation of transcription and both positive and negative regulation of the luxR gene [PDF]
Journal of Bacteriology, 1991 Regulation of the genes required for bioluminescence in the marine bacterium Vibrio fischeri (the lux regulon) is a complex process requiring coordination of several systems. The primary level of regulation is mediated by a positive regulatory protein, LuxR, and a small diffusible molecule, N-(3-oxo-hexanoyl)-homoserine lactone, termed autoinducer ...
G S, Shadel, T O, Baldwin
openaire +2 more sources
The evolution of bacterial LuxI and LuxR quorum sensing regulators [PDF]
Microbiology, 2001 Quorum sensing is a widespread form of bacterial communication in which individual cells produce and respond to specific N-acyl homoserine lactone signal metabolites. The different autoinducer synthases that generate these signals and the receptor/activator proteins that mediate the cell's response to them constitute evolutionarily conserved families ...
Kendall M, Gray, James R, Garey
openaire +2 more sources
mBio, 2013 LuxR-type transcription factors are the master regulators of quorum sensing in vibrios. LuxR proteins are unique members of the TetR superfamily of transcription factors because they activate and repress large regulons of genes.
Julia C. van Kessel +3 more
doaj +1 more source
Fishes, 2023 This study aimed to investigate the effect of reduced expression of the luxR gene on the virulence of Pseudomonas plecoglossicida and the immune response of Epinephelus coioides. To achieve this, RNA interference (RNAi) was used to silence the luxR gene,
Lingmin Zhao +6 more
doaj +1 more source
Marine Drugs, 2019 Atratumycin is a cyclodepsipeptide with activity against Mycobacteria tuberculosis isolated from deep-sea derived Streptomyces atratus SCSIO ZH16NS-80S.
Zhijie Yang +5 more
doaj +1 more source
Bacterial Subfamily of LuxR Regulators That Respond to Plant Compounds [PDF]
Applied 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
Frontiers in Microbiology, 2022 Quorum sensing (QS) is a bacterial cell-cell communication system with genetically regulated mechanisms dependent on cell density. Canonical QS systems in gram-negative bacteria possess an autoinducer synthase (LuxI family) and a transcriptional ...
Martha Patricia Chávez-Moctezuma +6 more
doaj +1 more source
Prediction by promoter logic in bacterial quorum sensing. [PDF]
PLoS Computational Biology, 2012 Quorum-sensing systems mediate chemical communication between bacterial cells, coordinating cell-density-dependent processes like biofilm formation and virulence-factor expression.
Navneet Rai +6 more
doaj +1 more source
Biosensors, 2021 Aliivibrio fischeri LuxR and Aliivibrio logei LuxR1 and LuxR2 regulatory proteins are quorum sensing transcriptional (QS) activators, inducing promoters of luxICDABEG genes in the presence of an autoinducer (3-oxo-hexanoyl-l-homoserine lactone).
Sergey Bazhenov +7 more
doaj +1 more source