GEO DataSets

(Submitter supplied) A comparative RNA-seq approach between R. sphaeroides 2.4.1 wild type and an RNase J deletion strain 2.4.1∆rnj revealed the accumulation of different mRNA fragments in the mutant. The structural characteristics of these RNA fragments suggest that RNase J is responsible for the decay of degradation intermediates that cannot serve as substrates for the 3´-to-5´ exoribonucleases.

Organism:

Cereibacter sphaeroides 2.4.1

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18261

2 Samples

Download data: WIG

(Submitter supplied) The polynucleotide phosphorylase (PNPase) is conserved among both Gram-positive and Gram-negative bacteria. As a core part of the degradosome, the PNPase is involved in maintaining proper RNA levels within the bacterial cell. It plays a major role in RNA homeostasis and decay since it acts as a 3’- to 5’-exoribonuclease. Furthermore PNPase can catalyze the reverse reaction by elongating RNA molecules in 5’- to 3’-end direction which finally has a destabilizing effect on the prolonged RNA molecule. more...

Organism:

Cereibacter sphaeroides

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24048

9 Samples

Download data: BED, CSV, WIG

(Submitter supplied) Global transcriptome analyses at different stages of growth were applied to monitor growth phase-dependent gene expression in the alpha-proteobacterium Rhodobacter sphaeroides. Cultures with low aeration, which underwent strong changes in levels of dissolved oxygen during growth, were compared to aerated cultures, which showed little variation in levels of dissolved oxygen. Cells were in stationary phase for 12 h or for 57 h before dilution into fresh medium. more...

Organism:

Cereibacter sphaeroides 2.4.1

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17213

8 Samples

Download data: WIG

(Submitter supplied) Bacterial competence is a genetically programmed process that is triggered as a response to environmental stimuli. DNA uptake from the extracellular milieu by competence requires the expression of a complex machinery composed of a competence pseudopilus and a DNA translocase. In L. pneumophila, it has been reported that microaerophilic conditions and genetic alteration of the competence repressors ComR and ProQ result in competence. more...

Organism:

Legionella pneumophila; Legionella pneumophila subsp. pneumophila str. Philadelphia 1

Type:

Expression profiling by array

Platform:

GPL7283

18 Samples

Download data: CSV

(Submitter supplied) Treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections is dependant on the efficacy of last-line antibiotics like vancomycin. Vancomycin treatment failure is most commonly linked to the emergence of vancomycin-intermediate resistance in clincal isolates (termed VISA). These isolates have not acquired resistance genes but appear to accumulate a heterogenous collection of single nucleotide polymerisms that collectively alter the physiology of the cell to increase vancomycin tolerance. more...

Organism:

Staphylococcus aureus subsp. aureus str. JKD6008; Staphylococcus aureus subsp. aureus str. JKD6009

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL31256 GPL29206 GPL29205

39 Samples

Download data: BEDGRAPH, GR, TSV, XLS, XLSX

(Submitter supplied) Background The RNA steady-state levels in the cell are a balance between synthesis and degradation rates. Although transcription is important, RNA processing and turnover are also key factors in the regulation of gene expression. In Escherichia coli there are three main exoribonucleases (RNase II, RNase R and PNPase) involved in RNA degradation. Although there are many studies about these exoribonucleases not much is known about their global effect in the transcriptome. more...

Organism:

Escherichia coli

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14548

4 Samples

Download data: TXT

(Submitter supplied) The narrow-specificity endoribonuclease RNase III and the 5’ exonuclease RNase J1 have been recently found to be not essential in the Gram-positive model organism, Bacillus subtilis. In this study, we performed a global analysis of internal 5’ ends that are generated or acted upon by these enzymes. An RNA-Seq protocol known as PARE (Parallel Analysis of RNA Ends) was used to capture 5’ monophosphorylated RNA ends in ribonuclease wild-type and mutant strains. more...

Organism:

Bacillus subtilis

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL18561 GPL21373

7 Samples

Download data: TXT

(Submitter supplied) RNase III is an important and highly conserved endoribonuclease known to impact rRNA, mRNA and ncRNA abundances by RNA processing. In this study we analyzed the effects of an inactivation of RNase III (inactivated through substitution of two strictly conserved amino acids within the active enzyme center) on the transcriptome of the facultative phototrophic model organism Rhodobacter sphaeroides.

Organism:

Cereibacter sphaeroides

Type:

Expression profiling by high throughput sequencing

Platform:

GPL33350

9 Samples

Download data: WIG

(Submitter supplied) In this study, we performed RNA-sequencing on an E. coli model system to confirm known sites, identify novel targets, and determine the impact of RNase III cleavage events on transcript degradation and metabolic phenotypes. To find cleavage sites, we compared the abundance of sequencing reads across the transcriptome of a wild-type E. coli and an rnc- deletion mutant. The RNA-sequencing approach provided wider coverage and unprecedented resolution of mRNA abundance at each position in the transcriptome compared to prior studies that used qPCR, Northern blots, or microarrays. more...

Organism:

Escherichia coli

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18133

15 Samples

Download data: TXT

(Submitter supplied) Streptococcus pyogenes (Group A streptococcus, GAS) is an important human pathogen that causes a variety of infectious diseases and sequelae. Recent studies showed virulence factor expression was controlled at multiple levels, including the post-transcriptional regulation. In this study, we examined the global half-lives of S. pyogenes mRNAs and explored the role RNase Y played in mRNA metabolism with microarray analysis. more...

Organism:

Streptococcus pyogenes; Streptococcus pyogenes NZ131

Type:

Expression profiling by array

Platform:

GPL11420

20 Samples

Download data: CEL

(Submitter supplied) Many protein domains are conserved among different classes and are found in numerous species, but their function remains obscure. Data bases list more than 17,000 DUF1127 proteins but to date no biological function could be assigned to any of these proteins. This study demonstrates that the 71 amino acid DUF1127 protein CcaF1 from the alphaproteobacterium Rhodobacter sphaeroides participates in the maturation of the CcsR sRNAs that are processed from the 3´ UTR of the ccaF mRNA and have a role in the oxidative stress defense. more...

Organism:

Cereibacter sphaeroides 2.4.1

Type:

Other

Platform:

GPL28141

4 Samples

Download data: CSV, WIG

(Submitter supplied) Many protein domains are conserved among different classes and are found in numerous species, but their function remains obscure. Data bases list more than 17,000 DUF1127 proteins but to date no biological function could be assigned to any of these proteins. This study demonstrates that the 71 amino acid DUF1127 protein CcaF1 from the alphaproteobacterium Rhodobacter sphaeroides participates in the maturation of the CcsR sRNAs that are processed from the 3´ UTR of the ccaF mRNA and have a role in the oxidative stress defense. more...

Organism:

Cereibacter sphaeroides

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24048

9 Samples

Download data: CSV

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

Organism:

Escherichia coli K-12; Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by array

Platform:

GPL14649

44 Samples

Download data: PAIR

(Submitter supplied) Exoribonucleases are crucial for RNA degradation in Escherichia coli but the roles of RNase R and PNPase and their potential overlap in stationary phase are not well characterized. Here, we used a genome-wide approach to determine how RNase R and PNPase affect the mRNA half-lives compared to wild type (stabilome) in the stationary phase. The stabilome is an original dynamic transcriptome-based analysis to measure the rates of mRNA degradation at the genome scale. more...

Organism:

Escherichia coli str. K-12 substr. MG1655; Escherichia coli K-12

Type:

Expression profiling by array

Platform:

GPL14649

9 Samples

Download data: PAIR

(Submitter supplied) Exoribonucleases are crucial for RNA degradation in Escherichia coli but the roles of RNase R and PNPase and their potential overlap in stationary phase are not well characterized. Here, we used a genome-wide approach to determine how RNase R and PNPase affect the mRNA half-lives compared to wild type (stabilome) in the stationary phase. The stabilome is an original dynamic transcriptome-based analysis to measure the rates of mRNA degradation at the genome scale. more...

Organism:

Escherichia coli str. K-12 substr. MG1655; Escherichia coli K-12

Type:

Expression profiling by array

Platform:

GPL14649

35 Samples

Download data: PAIR

(Submitter supplied) Exposure to oxygen and light generates photooxidative stress by the bacteriochlorophyll a mediated formation of singlet oxygen (1O2) in the facultative photosynthetic bacterium Rhodobacter sphaeroides. We have identified SorY as an sRNA, which is induced under several stress conditions and confers increased resistance against 1O2. SorY by direct interaction decreases the levels of takP mRNA, encoding a TRAP-T transporter. more...

Organism:

Cereibacter sphaeroides 2.4.1

Type:

Expression profiling by array

Platform:

GPL15457

2 Samples

Download data: TXT

(Submitter supplied) Comparison of wild type and mutant strain with temperature-sensitive RNase E. Goal: to study the effect of RNase E on the transcriptome

Organism:

Cereibacter sphaeroides

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24048

12 Samples

Download data: WIG

(Submitter supplied) The conserved endoribonuclease RNase E is essential in Rhodobacter sphaeroides and acts as global regulator of the transcriptome. By comparison of an RNase E mutant (showing reduced enzyme activity) with the Rhodobacter sphaeroides wild type, both grown under three different growth conditions, we analysed the impact of RNase E on the adaption of Rhodobacter sphaeroides to different growth conditions.

Organism:

Cereibacter sphaeroides

Type:

Expression profiling by high throughput sequencing

Platform:

GPL32157

18 Samples

Download data: CSV

(Submitter supplied) The post-transcriptional addition of nucleotides to the 3´ end of RNA regulates the maturation, function, and stability of RNA species in all domains of life. Here, we show that, in flies, 3´ terminal RNA uridylation triggers the processive, 3´-to-5´ exoribonucleolytic decay via the RNase II/R enzyme CG16940, a homolog of the human Perlman syndrome exoribonuclease Dis3l2. Together with the TUTase Tailor, dmDis3l2 forms the cytoplasmic, uridylation-triggered RNA processing (TRUMP) complex, that functionally cooperates in the degradation of structured RNA. more...

Organism:

Drosophila melanogaster; synthetic construct

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing; Other

Platforms:

GPL19604 GPL17275

15 Samples

Download data: TXT, XLSX

(Submitter supplied) We used three M. tuberculosis strains (WT H37Rv, an RV2752c deletion mutation, and the mutant complemented with an Rv2752c overexpression construct), extracted RNA from log phase cultures, and made RNAseq expression libraries as well as 5'-end-directed libraries.

Organism:

Mycobacterium tuberculosis H37Rv

Type:

Expression profiling by high throughput sequencing; Other

Platform:

GPL17280

12 Samples

Download data: TXT, XLSX