GEO DataSets

(Submitter supplied) We found that biofilm formation ability of E. faecalis was impacted by surfactin. To further understand how E. faecalis responded to surfactin, we searched for differentially expressed genes between E. faecalis treated with or without surfactin using RNA-seq analysis.

Organism:

Enterococcus faecalis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL35064

2 Samples

Download data: XLSX

(Submitter supplied) Deletion of the global transcription factor PacR in Anabaena triggers heterocyst formation even in NO3- containing medium, likely due to impaired NO3- uptake and disrupted NH4+ assimilation in the GOGAT cycle. This phenotype may be exacerbated by reduced PSI-yield and reduced expression of ferredoxin, which may lead to less reducing equivalents for nitrogen uptake and fixation. These results highlight PacR’s role as a global regulator of carbon metabolism and photosynthesis while also establishing its involvement in regulating nitrogen metabolism.

Organism:

Nostoc sp. PCC 7120 = FACHB-418

Type:

Expression profiling by high throughput sequencing

Platform:

GPL35023

18 Samples

Download data: TXT

(Submitter supplied) Biofilm formation is an important mechanism of survival and persistence for many bacterial pathogens. These multicellular communities contain subpopulations of cells that display vast metabolic and transcriptional diversity along with high recalcitrance to antibiotics and host immune defenses. Investigating the complex heterogeneity within biofilm has been hindered by the lack of a sensitive and high-throughput method to assess stochastic transcriptional activity and regulation between bacterial subpopulations, which requires single-cell resolution. more...

Organism:

Staphylococcus aureus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28116

2 Samples

Download data: TXT

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

Organism:

Streptococcus agalactiae; Escherichia coli

Type:

Other; Expression profiling by high throughput sequencing

Platforms:

GPL25368 GPL29157 GPL28679

26 Samples

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(Submitter supplied) Bacterial CRISPR-Cas9 immune systems protect against foreign DNA. However, immune efficiency is constrained by Cas9 off-target effects and toxicity. Here, we demonstrate that CRISPR-Cas9 immunity is regulated by CovR, the major regulator of virulence in Group B Streptococcus, a pathobiont responsible for neonatal invasive infections. We show that CovR binds to and represses a distal promoter of the cas operon, embedding immunity in the virulence regulatory network. more...

Organism:

Streptococcus agalactiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL29157

18 Samples

Download data: TXT

(Submitter supplied) Bacterial CRISPR-Cas9 immune systems protect against foreign DNA. However, immune efficiency is constrained by Cas9 off-target effects and toxicity. Here, we demonstrate that CRISPR-Cas9 immunity is regulated by CovR, the major regulator of virulence in Group B Streptococcus, a pathobiont responsible for neonatal invasive infections. We show that CovR binds to and represses a distal promoter of the cas operon, embedding immunity in the virulence regulatory network. more...

Organism:

Escherichia coli; Streptococcus agalactiae

Type:

Other

Platforms:

GPL28679 GPL25368

8 Samples

Download data: XLSX

(Submitter supplied) Mycobacterium tuberculosis can use a proteasome to degrade proteins when they are post-translationally modified with prokaryotic ubiquitin-like protein (Pup). While pupylation is reversible, mechanisms regulating depupylation have not been identified. Here, we identify a depupylation regulator, CoaX, a pseudo-pantothenate kinase. Pantothenate synthesis enzymes were more abundant in a ∆coaX mutant, including PanB, a substrate of the Pup-proteasome system. more...

Organism:

Mycobacterium tuberculosis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27507

12 Samples

Download data: TSV

(Submitter supplied) Bacterial non-coding RNAs fulfill a variety of cellular functions, for example as catalysts, as structural components in multiprotein complexes or as regulators of gene expression at the transcriptional and post-transcriptional level. Some RNAs display exceptionally broad conservation across bacterial phyla and are involved in fundamental and unique cellular functions. Hence, the characterization of new RNA families with deep sequence and/or structure conservation has the potential to reveal new molecular and biological RNA functions. more...

Organism:

Clostridioides difficile

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25258

12 Samples

Download data: WIG

(Submitter supplied) Bacterial non-coding RNAs fulfill a variety of cellular functions, for example as catalysts of chemical reactions, as structural components in multiprotein complexes or as regulators of gene expression at the transcriptional and post-transcriptional level. Some RNAs, such as ribosomal RNAs, display exceptionally broad conservation across bacterial phyla and are involved in fundamental and unique cellular functions. more...

Organism:

Clostridioides difficile

Type:

Other

Platform:

GPL30071

28 Samples

Download data: RC, XML

(Submitter supplied) Group A Streptococcus (GAS) is a human-adapted pathogen responsible for a variety of diseases. The GAS M1UK lineage has contributed significantly to the recently reported increases in scarlet fever and invasive infections, however the basis for its evolutionary success is not yet fully understood. During the transition to systemic disease, the M1 serotype is known to give rise to spontaneous mutations in the CovRS two-component transcriptional regulation system that confer a fitness advantage during invasive infections. more...

Organism:

Streptococcus pyogenes

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28678

12 Samples

Download data: TSV

(Submitter supplied) Single-molecule correlated chemical probing (smCCP) is an experimentally concise strategy for characterizing higher-order structural interactions in RNA. smCCP data yield rich, but complex, structural information on base pairing, conformational ensembles, and tertiary interactions. To date, through-space communication specifically measuring RNA tertiary structure has been difficult to isolate from structural communication reflective of other interactions. more...

Organism:

Enterococcus faecalis

Type:

Other

Platform:

GPL24867

15 Samples

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(Submitter supplied) Tuberculosis (TB) is one of the leading causes of death due to a single infectious agent and is considered a global threat killing over 4,300 people every day. Upon infection, Mycobacterium tuberculosis (M.tb) deposits in the alveoli and encounters the lung mucosa or alveolar lining fluid (ALF), whose primary function is to keep the lung’s health intact, dictating host-cell interactions. Age-associated changes to innate soluble components in the ALF lead to increased susceptibility of the elderly population to respiratory infectious diseases such as TB. more...

Organism:

Mycobacterium tuberculosis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22688

14 Samples

Download data: TXT

(Submitter supplied) Metagenome sequencing enables discovery and genetic characterization of complex microbial communities from diverse ecosystems. However, determining the activity of isolates within a community using transcriptomics presents several challenges including the wide dynamic range of organismal and gene expression abundances, the presence of host RNA, and low microbial biomass at many body sites. To address these limitations, we developed “Targeted Expression Analysis Sequencing” or TEAL-seq. more...

Organism:

Escherichia coli; Staphylococcus aureus; Mus musculus; Staphylococcus epidermidis; Homo sapiens

Type:

Expression profiling by high throughput sequencing

6 related Platforms

129 Samples

Download data: XLSX

(Submitter supplied) Tuberculosis, caused by Mycobacterium tuberculosis has remained a leading cause of death worldwide even after decades of it being declared as global health emergency by the WHO. Newer drugs with novel modes of action are urgently needed to combat the threats imposed by the constantly emerging drug resistant strains. Natural products (NPs) derived anti-mycobacterials appear lucrative because of their complex structural features and unique cellular targets they bind to. more...

Organism:

Mycobacterium tuberculosis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL33344

30 Samples

Download data: TXT

(Submitter supplied) Two wide type strains of Bacillus subtilis, S-2 and 312, were selected to study their genic differences treated by L-alanine through comparative transcriptomics analysis. The spores of B. subtilis S-2 were selected because of their high germination potential to L-alanine. The spores of B. subtilis 312 without a response to L-alanine were used as the control. The spores with or without L-alanine (100 mm) pretreatment were both cultured in the synthetic medium for 9 h, and then collected for sequencing.

Organism:

Bacillus subtilis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL29318

8 Samples

Download data: TXT

(Submitter supplied) To better understand host/phage interactions and the genetic bases of phage resistance in a model system relevant to potential phage therapy, we isolated several spontaneous mutants of the USA300 S. aureus clinical isolate NRS384 that were resistant to phage K. Six of these had a single missense mutation in the host rpoC gene, which encodes the RNA polymerase beta prime subunit. To examine the hypothesis that the mutations in the host RNA polymerase affect the transcription of phage genes, we performed RNA-seq analysis on total RNA samples collected from NRS384 wild-type (WT) and rpoC G17D mutant cultures infected with phage K, at different time points after infection. more...

Organism:

Staphylococcus aureus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27158

56 Samples

Download data: XLSX

(Submitter supplied) Herbivorax saccincola A7 is an alkali-thermophilic lignocellulolytic bacterium that was known to possess a strong xylan degradation ability. They can utilize a wide range of carbon sources, however the response and regulation mechanisms to different carbon sources, in terms of genes expression, are still not identified. In this study, H. saccincola A7 was cultured with cellobiose, cellulose, xylan, cellulose-xylan mixture, and empty fruit bunch (EFB) as the sole carbon source. more...

Organism:

Acetivibrio saccincola

Type:

Expression profiling by RT-PCR

Platform:

GPL29661

5 Samples

Download data: TXT

(Submitter supplied) Peracetic acid (PAA), a strong oxidizing agent, has been widely used as a disinfectant in food processing settings as it does not produce harmful chlorinated by-products. In the present study, the transcriptional response of Listeria monocytogenes to 2.5 ppm of PAA was assessed using RNA-sequencing (RNA-seq). Our analysis revealed 12 differentially expressed genes, of which 9 were up-regulated (ohrR, ohrA, rpsN, lmo0637, lmo1973, fur, lmo2492, zurM, and lmo1007), and 3 were down-regulated (argG, lmo0604, lmo2156) in PAA treated samples compared to the control samples. more...

Organism:

Listeria monocytogenes

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27107

18 Samples

Download data: TAB

(Submitter supplied) Listeria monocytogenes is a ubiquitous and psychrophilic foodborne pathogen commonly found in raw materials, ready to eat products and food environments. It was previously demonstrated that L. monocytogenes can grow faster at low temperature when unsaturated fatty acids (UFA) are present in its environment. In this study, we used comparative gene expression profiling of RNA-sequencing data to understand the impact of UFA on the behavior and cold adaptation of L. more...

Organism:

Listeria monocytogenes

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26477

12 Samples

Download data: TXT

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

Organism:

Lactiplantibacillus plantarum; Serratia marcescens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL30015 GPL33401 GPL34033

30 Samples

Download data: MTX, TSV, TXT