GEO DataSets

(Submitter supplied) We present the first genome-wide identification and characterizaion of 422 novel sRNAs in R. capsulatus. In addition we report a comparative analysis of conserved sRNAs across 24 bacterial species.

Organism:

Rhodobacter capsulatus

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL20771

2 Samples

Download data: XLS

(Submitter supplied) The samples in this series were used to analyze the transcriptome of the CtrA regulon using wild type (SB1003) and ctrA mutant (SBRM1) strains of Rhodobacter capsulatus. As well, the transcriptome of growth phase regulation in R. capsulatus SB1003 between log and stationary phases was determined.

Organism:

Rhodobacter capsulatus

Type:

Expression profiling by array

Platform:

GPL9198

12 Samples

Download data: CEL

(Submitter supplied) In Staphylococcus aureus, hundreds of small regulatory or small RNAs (sRNAs) have been identified, yet this class of molecule remains poorly understood and severely understudied. sRNA genes are typically absent from genome annotation files, and as a consequence, their existence is often overlooked, particularly in global transcriptomic studies. To facilitate improved detection and analysis of sRNAs in S. more...

Organism:

Staphylococcus aureus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19476

4 Samples

Download data: XLS

(Submitter supplied) Streptococcus pneumoniae (pneumococcus) is a major human respiratory pathogen and a leading cause of bacterial pneumonia worldwide. Small regulatory RNAs (sRNAs), which often act by post-transcriptionally regulating gene expression, have been shown to be crucial for the virulence of S. pneumoniae and other bacterial pathogens. Over 170 putative sRNAs have been identified in S. pneumoniae TIGR4 strain (serotype 4) through transcriptomic studies, and a subset of these sRNAs have been further implicated in regulating pneumococcal pathogenesis. more...

Organism:

Streptococcus pneumoniae D39

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25906

10 Samples

Download data: TXT

(Submitter supplied) Streptococcus pneumoniae (pneumococcus) is a major human respiratory pathogen and the leading cause of bacterial pneumonia worldwide. Small regulatory RNAs (sRNAs), which often act by post-transcriptionally regulating gene expression, have been shown to be crucial for the virulence of S. pneumoniae and other bacterial pathogens. Over 170 putative sRNAs have been identified in S. pneumoniae TIGR4 strain (serotype 4) through transcriptomic studies, and a subset of these sRNAs have been further implicated in regulating pneumococcal pathogenesis. more...

Organism:

Streptococcus pneumoniae D39

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL25906

6 Samples

Download data: BW

(Submitter supplied) We report the transcriptomic profile of Escherichia coli when the small RNA RydC is overexpressedand how this can be used to identify putative mRNA targets. This technique allowed us to identify potential mRNA targets to further validate in vivo.

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15010

6 Samples

Download data: TXT, WIG

(Submitter supplied) We report the use of Next Generation RNA Sequencing for confirming or improving initial identification of small regulatory RNA in Staphylococcus aureus to prodive a list of the most probable RNA molecules transcribed as independent units.

Organism:

Staphylococcus aureus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19531

6 Samples

Download data: TXT

(Submitter supplied) Transcriptomic data has been previously used to determine expression patterns in various R. capsulatus strains using custom made Affymetrix microarrays. Additional expression analyses have since been carried out to obtain preliminary data on certain wild type and mutant strains that have not been reported on. We used all current microarray expression data available and constructed an R. capsulatus gene co-expression network and performed functional analysis of identified gene modules.

Organism:

Rhodobacter capsulatus

Type:

Expression profiling by array

Platform:

GPL9198

12 Samples

Download data: CEL

(Submitter supplied) Expression profiles of wild type and gtaI mutant in logarithmic and stationary phase of growth. The objective was to search for differentially regulated genes potentially associated with EPS production in R. capsulatus.

Organism:

Rhodobacter capsulatus

Type:

Expression profiling by array

Platform:

GPL9198

4 Samples

Download data: CEL

(Submitter supplied) Rhodobacter capsulatus produces a gene transfer agent (GTA) called RcGTA. RcGTA is a phage-like particle that packages R. capsulatus DNA and transfers it to other R. capsulatus cells. Low-resolution techniques suggested RcGTA packages random DNA. Analysis of the RcGTA terminase sequence revealed a distant relationship to the phage T4 terminase protein, which can also perform sequence-independent packaging. more...

Organism:

Rhodobacter capsulatus

Type:

Expression profiling by array; Genome variation profiling by array

Platform:

GPL9198

3 Samples

Download data: CEL

(Submitter supplied) Neisseria meningitidis is a human commensal that occasionally causes life-threatening infections such as bacterial meningitis and septicemia. Despite experimental evidence that gene regulation as well as the expression of small non-coding RNAs (sRNAs) affect meningococcal virulence, the organization of its transcriptome, including in particular the biogenesis of sRNAs and their mode of action, is only poorly understood. more...

Organism:

Neisseria meningitidis 8013

Type:

Expression profiling by high throughput sequencing; Other

Platforms:

GPL22295 GPL22296

8 Samples

Download data: WIG

(Submitter supplied) Small RNAs are the non-coding RNAs known to regulate various biological functions such as stress adaptation, metabolism, virulence as well as pathogenicity across wide range of bacteria, mainly by controlling mRNA stabilization or regulating translation. Identification and functional characterization of sRNAs that has been carried out in various plant growth promoting bacteria have shown to help the bacterial cell cope up with environmental stress. more...

Organism:

Azospirillum baldaniorum

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL25390

2 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of R. sphaeroides pRCcsR1-4 comparing to control R. sphaeroides 2.4.1 pRK415 under aerobic conditions

Organism:

Cereibacter sphaeroides; Cereibacter sphaeroides 2.4.1

Type:

Expression profiling by array

Platform:

GPL15457

2 Samples

Download data: TXT

(Submitter supplied) Bacteria cope with and adapt to stress by modulating gene expression in response to specific environmental cues. In this study the transcriptional response of Pseudomonas putida KT2440 to oxidative, osmotic, and membrane stress conditions at two time points was investigated via identification of differentially expressed mRNAs and sRNAs. A total of 440 small RNA transcripts were detected, where 10% correspond to previously annotated sRNAs, 40% are novel intergenic transcripts and 50% are novel transcripts antisense to annotated genes. more...

Organism:

Pseudomonas putida KT2440

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17091

21 Samples

Download data: TXT, XLSX

(Submitter supplied) Next-generation sequencing technologies have dramatically increased the rate at which new genomes are sequenced. Accordingly, automated-annotation programs have become adept at identifying and annotating protein coding regions, as well as common and conserved RNAs. Additionally, RNAseq techniques have advanced our ability to identify and annotate regulatory RNAs (sRNAs), which remain significantly understudied. more...

Organism:

Staphylococcus epidermidis; Staphylococcus aureus; Staphylococcus carnosus

Type:

Non-coding RNA profiling by high throughput sequencing

Platforms:

GPL21408 GPL19476 GPL21407

3 Samples

Download data: XLSX

(Submitter supplied) Small RNAs are emerging as important molecules for cross-species communication. Thanks to available and affordable sequencing technologies it is now possible to sequence small RNAs (sRNA-Seq) present in samples of interacting organisms. A first step when analyzing sRNA-Seq of two interacting species is to determine which sequences are being produced by which organism. Due to their small size (18-30), small RNAs could easily map to both host and parasite genomes. more...

Organism:

Mus musculus; Heligmosomoides bakeri

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL21103 GPL25995

12 Samples

Download data: TXT

(Submitter supplied) Accurate annotation of regulatory RNAs is a complex task but nevertheless essential as sRNA molecular and functional studies ensue from it. Several formerly considered small RNAs (sRNA) are now known to be parts of UTR transcripts. In light of experimental data, we review hundreds of Staphylococcus aureus putative regulatory RNAs. We pinpoint those that are likely acting in trans and are not expressed from the opposite strand of a coding gene. more...

Organism:

Staphylococcus aureus

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL16057

1 Sample

Download data: GFF

(Submitter supplied) We report the use of Next Generation RNA Sequencing to identifiy novel sRNAs in the human pathogen Staphylococcus aureus

Organism:

Staphylococcus aureus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL18481 GPL19531

10 Samples

Download data: TXT

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

Organism:

Streptococcus pyogenes

Type:

Expression profiling by array; Expression profiling by genome tiling array; Non-coding RNA profiling by genome tiling array

Platforms:

GPL9080 GPL6186

15 Samples

Download data: CEL

(Submitter supplied) Small regulatory RNAs (sRNAs) represent a major mechanism of virulence regulation in several pathogens. To date, only three sRNAs have been described in GAS in any detail. To identify whether sRNAs are common within the GAS genome, we created a custom Affymetrix tiling microarray in which all intergenic regions (>49 bp) of the MGAS2221 genome were tiled at high density. Triplicate cultures of strain MGAS2221 in THY broth were grown to the exponential phase (O.D.600 of 0.5) of growth and RNA was isolated, converted to cDNA, fragmented, labeled, and hybridized to our custom array (one array per RNA sample [ hence three arrays total]). more...

Organism:

Streptococcus pyogenes

Type:

Expression profiling by genome tiling array; Non-coding RNA profiling by genome tiling array

Platform:

GPL6186

3 Samples

Download data: BAR, CEL