GEO DataSets

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

8 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

44 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

4 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

4 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

4 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

4 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

8 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

8 Samples

Download data: TXT

(Submitter supplied) Microarray data for study "The master regulators AphA and LuxR control the Vibrio harveyi quorum-sensing regulon: analysis of their individual and combined effects". Bacteria use a chemical communication process called quorum sensing to control transitions between individual and group behaviors. In the Vibrio harveyi quorum-sensing circuit, two master transcription factors AphA and LuxR coordinate the quorum-sensing response. more...

Organism:

Vibrio harveyi

Type:

Expression profiling by array

Platform:

GPL16606

4 Samples

Download data: TXT

(Submitter supplied) Quorum sensing controls hundreds of genes in vibrios required for cell density-specific behaviors, including bioluminescence, biofilm formation, competence, secretion, and motility. The central regulator in the quorum sensing pathway in vibrios is LuxR/HapR, which directly regulates >100 genes in the 625-gene regulon of Vibrio harveyi. Among these directly regulated genes are 15 transcription factors, which we predicted would comprise the second tier in the hierarchy of the quorum sensing regulon. more...

Organism:

Vibrio campbellii

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27117

30 Samples

Download data: TXT

(Submitter supplied) Bacteria coordinate cellular behaviors using a cell-cell communication system termed quorum sensing. In Vibrio harveyi, the master quorum sensing transcriptional factor LuxR directly regulates >100 genes in response to changes in population density. Here, we show that LuxR derepresses quorum sensing loci by competing with H-NS, a global transcriptional repressor that oligomerizes on DNA to form filaments and bridges. more...

Organism:

Vibrio campbellii

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27117

12 Samples

Download data: TXT

(Submitter supplied) Bacteria coordinate cellular behaviors using a cell-cell communication system termed quorum sensing. In Vibrio harveyi, the master quorum sensing transcriptional factor LuxR directly regulates >100 genes in response to changes in population density. Here, we show that LuxR derepresses quorum sensing loci by competing with H-NS, a global transcriptional repressor that oligomerizes on DNA to form filaments and bridges. more...

Organism:

Vibrio campbellii

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL27117

5 Samples

Download data: TXT

(Submitter supplied) LuxR is the master quorum sensing regulator in Vibrio harveyi. This transcription factor controls the expression of over 600 genes to coordinate group behaviors. In order to understand how LuxR regulates transcription we identified a co-regulator, integration host factor (IHF). In this study we performed RNA-seq to show that the LuxR and IHF regulons overlap significantly.

Organism:

Vibrio harveyi

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22744

9 Samples

Download data: TXT

(Submitter supplied) Acyl-homoserine lactone (acyl-HSL) quorum sensing was first discovered in Vibrio fischeri where it serves as a key control element of the seven-gene luminescence (lux) operon. Since this initial discovery, other bacteria have been shown to control hundreds of genes by acyl-HSL quorum sensing. Until recently, it has been difficult to examine the global nature of quorum sensing in V. fischeri. However, the complete genome sequence of V. more...

Organism:

Aliivibrio fischeri

Type:

Expression profiling by array

Platform:

GPL5074

8 Samples

Download data: CEL

(Submitter supplied) In this study, we studied the binding of the transcriptional regulator QstR to DNA through chromatin immunoprecipitation coupled with deep sequencing (ChIP-seq).

Organism:

Vibrio cholerae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL25005

4 Samples

Download data: TSV

(Submitter supplied) In this study, we compared the QstR regulon to the TfoX regulon (and TfoY regulon) of V. cholerae in WT strain A1552 and its ΔhapRΔvpsA derivative using RNA-seq to better understand QstR's function.

Organism:

Vibrio cholerae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25005

24 Samples

Download data: TXT

(Submitter supplied) The genome of Sinorhizobium meliloti, a model for studying plant-bacteria symbiosis, contains the genes coding for eight LuxR-like proteins. Two of these, SinR and ExpR, are essential for quorum sensing (QS). Roles and regulation surrounding the others are mostly unknown. Here, we reveal the DNA recognition sequence and regulon of the LuxR-like protein SMc00877. Unlike ExpR, which uses the long chain acyl homoserine lactones (AHLs) as inducers, SMc00877 functioned independently of AHLs and was even functional in Escherichia coli. more...

Organism:

Sinorhizobium meliloti

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL26685

2 Samples

Download data: BW

(Submitter supplied) Purpose : The goal of this study was to use RNA Seq to define the regulon of the transciption factor Anr by comparing global transcriptional profiles of Pseudomonas aeruginosa strain PAO1 and a clinical isolate with their isogenic ∆anr mutants, grown in colony biofilms at 1% oxygen. Methods : mRNA profiles were generated for laboratory strain PAO1 and for a clinical isolate J215, as well as for ∆anr derivatives of each strain, in duplicate, by deep sequencing. more...

Organism:

Pseudomonas aeruginosa PAO1; Pseudomonas aeruginosa

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL18782 GPL18287

8 Samples

Download data: XLSX

(Submitter supplied) The quorum regulatory cascade is poorly characterized in Vibrio parahaemolyticus, in part because swarming and pathogenicity - the hallmark traits of the organism - are repressed by this scheme of gene control. As a consequence, many isolates appear silenced for quorum sensing via phase variation. In these studies, we examine a swarm proficient, virulent strain and find an altered function allele of the central quorum regulator luxO. more...

Organism:

Vibrio parahaemolyticus RIMD 2210633; Vibrio parahaemolyticus

Type:

Expression profiling by array

Platform:

GPL8837

9 Samples

Download data: CEL

(Submitter supplied) We report ChIP-seq and RNA-seq analyses of the Brucella abortus LuxR-type transcription factor VjbR

Organism:

Brucella abortus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL23154

12 Samples

Download data: BW, NARROWPEAK, TSV