Results 31 to 40 of about 6,958 (200)

Diversity and functional analysis of LuxR-type transcriptional regulators of cyclic lipopeptide biosynthesis in Pseudomonas fluorescens [PDF]

, 2009
Cyclic lipopeptides (CLPs) are produced by many Pseudomonas species and have several biological functions, including a role in surface motility, biofilm formation, virulence, and antimicrobial activity.
Bruijn, I., de, Raaijmakers, J.M., de Bruijn, I.   +2 more
core   +1 more source

Analysis of Activator and Repressor Functions Reveals the Requirements for Transcriptional Control by LuxR, the Master Regulator of Quorum Sensing in Vibrio harveyi

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, Luke E. Ulrich, Igor B. Zhulin, Bonnie L. Bassler   +3 more
doaj   +1 more source

How the luxR Gene Affects the Pathogenicity of Pseudomonas plecoglossicida and the Immune Response of Epinephelus coioides

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, Lixing Huang, Yingxue Qin, Dou Yang, Jiaonan Zhang, Jiaolin Zhang, Qingpi Yan   +6 more
doaj   +1 more source

CsrA modulates luxR transcript levels in Vibrio fischeri [PDF]

FEMS Microbiology Letters, 2012
The quorum-sensing and CsrA regulons of Vibrios control overlapping cellular functions during growth. Hence, the potential exists for regulatory network interactions between the pathways that enable them to be coordinately controlled. In Vibrio cholerae, CsrA indirectly modulates the activity of LuxO in the quorum-sensing signaling pathway.
Joshua W, Williams, A L, Ritter, Ann M, Stevens   +2 more
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

RpoE, AphA, and LuxR bind to the luxR promoter. [PDF]

, 2016
(A) EMSA and DNase I footprinting analysis were used to analyze whether LuxR and AphA specifically bind to the luxR promoter. In EMSA assays, various concentrations of LuxR and AphA proteins were added to mixtures of poly(dI:dC) and Cy5-labeled luxR ...
Dan Gu (2191075), Min Guo (228787), Qiyao Wang (165806), Minjun Yang (120481), Xiaohui Zhou (177941), Yuanxing Zhang (153746)   +5 more
core   +1 more source

Characterization of the Noncanonical Regulatory and Transporter Genes in Atratumycin Biosynthesis and Production in a Heterologous Host

Marine Drugs, 2019
Atratumycin is a cyclodepsipeptide with activity against Mycobacteria tuberculosis isolated from deep-sea derived Streptomyces atratus SCSIO ZH16NS-80S.
Zhijie Yang, Xin Wei, Jianqiao He, Changli Sun, Jianhua Ju, Junying Ma   +5 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, Rajat Anand, Krishna Ramkumar, Varun Sreenivasan, Sugat Dabholkar, K V Venkatesh, Mukund Thattai   +6 more
doaj   +1 more source

Comparative genomic and functional analysis of Arthrobacter sp. UMCV2 reveals the presence of luxR-related genes inducible by the biocompound N, N-dimethylhexadecilamine

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, Ramiro Martínez-Cámara, Ramiro Martínez-Cámara, Julie Hernández-Salmerón, Gabriel Moreno-Hagelsieb, Gustavo Santoyo, Eduardo Valencia-Cantero   +6 more
doaj   +1 more source

Influence of the luxR Regulatory Gene Dosage and Expression Level on the Sensitivity of the Whole-Cell Biosensor to Acyl-Homoserine Lactone

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, Uliana Novoyatlova, Ekaterina Scheglova, Vadim Fomin, Svetlana Khrulnova, Olga Melkina, Vladimir Chistyakov, Ilya Manukhov   +7 more
doaj   +1 more source