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Items: 1 to 20 of 4664

1.

A conserved structured non-coding RNA coordinates growth and virulence in Clostridioides difficile. [dRNA-Seq ModT]

(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
Series
Accession:
GSE273119
ID:
200273119
2.

A conserved structured non-coding RNA coordinates growth and virulence in Clostridioides difficile. [DMS-MaP]

(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
Series
Accession:
GSE273118
ID:
200273118
3.

Transcriptional profiling of biomass degradation-related genes during Herbivorax saccincola A7 growth on different carbon sources

(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
Series
Accession:
GSE165680
ID:
200165680
4.

Identification of a new family of peptidoglycan transpeptidases reveals unusualcrosslinking is essential for viability inC. difficile

(Submitter supplied) Most bacteria are surrounded by a peptidoglycan cell wall composed of glycan strands held together by short peptide crosslinks. There are two major types of crosslinks, termed 4-3 and 3-3 based on the amino acids involved. 4-3 crosslinks are created by penicillin-binding proteins (PBPs), while 3-3 crosslinks created byL,D-transpeptidases (LDTs). In well studied bacteria 3-3 crosslinks comprise only about 10% of the total and are not essential. more...
Organism:
Clostridioides difficile
Type:
Expression profiling by high throughput sequencing
Platform:
GPL32868
6 Samples
Download data: XLSX
Series
Accession:
GSE270128
ID:
200270128
5.

Transcriptome analysis of the opportunist pathogenic bacterium Clostridium perfringens ATCC 13124 grown in the presence of host polysaccharide hyaluronic acid and mucin

(Submitter supplied) Purpose: The purpose of this study is to clarify the response of Clostridium perfringens ATCC 13124 to host polysaccharide. Methods: Clostridium perfringens ATCC 13124 cells were cultured anaerobically in a medium containing Minimal medium-like condition Poor + medium, medium in which hyaluronic acid or mucin was added to Poor + medium. Total RNA was extracted from bacterial cells by the Hot-Phenol method. more...
Organism:
Clostridium perfringens ATCC 13124
Type:
Expression profiling by high throughput sequencing
Platform:
GPL33655
3 Samples
Download data: XLSX
Series
Accession:
GSE240236
ID:
200240236
6.

Ruminococcus torques is a keystone degrader of intestinal mucin glycoprotein, releasing oligosaccharides used by Bacteroides thetaiotaomicron

(Submitter supplied) Symbiotic interactions between humans and our communities of resident gut microbes (microbiota) play many roles in health and disease. Some gut bacteria utilize mucus as a nutrient source and can under certain conditions damage the protective barrier it forms, increasing disease susceptibility. We investigated how Ruminococcus torques—a known mucin-degrader that remains poorly studied despite its implication in inflammatory bowel diseases (IBDs)— degrades mucin glycoproteins or their component O-linked glycans to understand its effects on the availability of mucin-derived nutrients for other bacteria. more...
Organism:
[Ruminococcus] torques VIII-239
Type:
Expression profiling by high throughput sequencing
Platform:
GPL34352
6 Samples
Download data: GFF, XLSX
Series
Accession:
GSE262875
ID:
200262875
7.

Autotrophic adaptive laboratory evolution of the acetogen Clostridium autoethanogenum delivers the gas-fermenting strain LAbrini with superior growth, products, and robustness

(Submitter supplied) Microbes able to convert gaseous one-carbon (C1) waste feedstocks are increasingly important to transition to the sustainable production of renewable chemicals and fuels. Acetogens are interesting biocatalysts since gas fermentation using Clostridium autoethanogenum has been commercialised. However, most acetogen strains need complex nutrients, display slow growth, and are not robust for bioreactor fermentations. more...
Organism:
Clostridium autoethanogenum
Type:
Expression profiling by high throughput sequencing
Platform:
GPL24458
15 Samples
Download data: TXT
Series
Accession:
GSE225123
ID:
200225123
8.

Clostridioides difficile-mucus interactions encompass shifts in gene expression, metabolism, and biofilm formation.

(Submitter supplied) In a healthy colon, the stratified mucus layer serves as a crucial innate immune barrier to protect the epithelium from microbes. Mucins are complex glycoproteins that serve as a nutrient source for resident microflora but can be exploited by pathogens. We aimed to understand how the intestinal pathogen, Clostridioides diffiicile, independently uses or manipulates mucus to its benefit. Using a 2-D primary human intestinal epithelial cell model to generate physiologic mucus, we assessed C. more...
Organism:
Clostridioides difficile R20291
Type:
Expression profiling by high throughput sequencing
Platform:
GPL34151
9 Samples
Download data: TXT
Series
Accession:
GSE254621
ID:
200254621
9.

Antagonistic conflict between transposon-encoded introns and guide RNAs

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Escherichia coli; Clostridium senegalense
Type:
Other; Expression profiling by high throughput sequencing
Platforms:
GPL34292 GPL21222
8 Samples
Download data: BW
Series
Accession:
GSE261344
ID:
200261344
10.

Antagonistic conflict between transposon-encoded introns and guide RNAs (RNA-Seq)

(Submitter supplied) TnpB nucleases represent the evolutionary precursors to CRISPR-Cas12 and are widespread in all domains of life. IS605-family TnpB homologs function in bacteria as programmable RNA-guided homing endonucleases driving transposon maintenance through DSB-stimulated homologous recombination. Here we uncover molecular mechanisms of transposition lifecycle of IS607-family elements that, remarkably, also encode group I introns. more...
Organism:
Escherichia coli; Clostridium senegalense
Type:
Expression profiling by high throughput sequencing
Platforms:
GPL21222 GPL34292
4 Samples
Download data: BW
Series
Accession:
GSE261343
ID:
200261343
11.

Effects of vancomycin and ramoplanin on gene expression in Clostridioides difficile

(Submitter supplied) We compared transcriptomes of wild-type and ∆vanS strains of Clostridioides difficile 630 growing in the presence or absence of peptidoglycan-targeting antibiotics, vancomycin or ramoplanin. VanS is a histidine kinase of a two-component system that regulates expression of the vancomycin-induced vanG operon.
Organism:
Clostridioides difficile 630
Type:
Expression profiling by high throughput sequencing
Platform:
GPL28932
14 Samples
Download data: TXT
Series
Accession:
GSE262388
ID:
200262388
12.

Transcriptomic and lipidomic analyses unravel the responses of Faecalibacterium prausnitzii to calcium palmitate

(Submitter supplied) We investigate the underlying mechanism of the CP inhibition on F. prausnitzii by analysing its effects at the transcriptomic and lipidomic levels.
Organism:
Faecalibacterium prausnitzii
Type:
Expression profiling by high throughput sequencing
Platform:
GPL33148
12 Samples
Download data: TXT
Series
Accession:
GSE225701
ID:
200225701
13.

Effect of agarooligosaccharide on gene expression of Ruminococcus gnavus

(Submitter supplied) We performed a transcriptome analysis of Ruminococcus gnavus with and without 0.1% (w/w) agarooligosaccharide exposure to validate the mechanism of growth inhibition.
Organism:
Mediterraneibacter gnavus
Type:
Expression profiling by high throughput sequencing
Platform:
GPL33784
6 Samples
Download data: XLSX
Series
Accession:
GSE243872
ID:
200243872
14.

Exogenous butyrate inhibits butyrogenic metabolism and alters virulence phenotypes in Clostridioides difficile

(Submitter supplied) The gut microbiome engenders colonization resistance against the diarrheal pathogen Clostridioides difficile but the molecular basis of this colonization resistance is incompletely understood. A prominent class of gut microbiome-produced metabolites important for colonization resistance against C. difficile is short chain fatty acids (SCFAs). In particular, one SCFA (butyrate) decreases the fitness of C. more...
Organism:
Clostridioides difficile
Type:
Expression profiling by high throughput sequencing
Platform:
GPL32868
24 Samples
Download data: TSV
Series
Accession:
GSE249810
ID:
200249810
15.

Effect of supplementation of a minimal culture medium with inulin, corn fiber and pectin, compared with a glucose condition, on the gene expression of a set of bacteria of the intestinal microbiota

(Submitter supplied) The aim of this RNA-sequencing study is to measure differential gene expression in 4 intestinal bacteria (Bacteroides xylanisolvens, Bacteroides thetaiotaomicron, Subdoligranulum variabile and Roseburia intestinalis). The data highlight the coordinated action of genes within the same locus involved in the degradation of complex carbohydrates. These loci are well characterized in Bacteroidetes species and referred to as polysaccharide utilization loci. more...
Organism:
Subdoligranulum variabile; Bacteroides thetaiotaomicron; Roseburia intestinalis; Bacteroides xylanisolvens
Type:
Expression profiling by high throughput sequencing
4 related Platforms
36 Samples
Download data: CSV
Series
Accession:
GSE237111
ID:
200237111
16.

Clostridioides difficile: R20291_pMTL84151 transconjugant (C) vs. R20291_pMTL84151-03890 (T1)

(Submitter supplied) Gene expression level of Clostridioides difficile (C. difficile) strain R20291 comparing control C. difficile carring pMTL84151 as vector plasmid with C. difficile conjugated with a pMTL84151-03890 gene. Goal was to determine the effects of 03890 gene conjugation on C. difficile strain R20291 gene expression.
Organism:
Clostridioides difficile; Clostridioides difficile R20291
Type:
Expression profiling by array
Platform:
GPL32901
6 Samples
Download data: TXT, XLSX
Series
Accession:
GSE219066
ID:
200219066
17.

Transcriptome analyses of Filifactor alocis ATCC35896 and Porphyromonas gingivalis W83 in mono-culture as compared to co-culture under hydrogen peroxide stress conditions

(Submitter supplied) Oal anaerobic bacteria have to face constant oxidative stress in order to survive in the inflammatory environment of the periodontal pocket. In this study, we analyzed the transcriptome profiles of P. gingivalis and Filifactor in monoculture as compared to P. gingivalis+F.alocis coculture under H2O2 stress condtions, to analyze the genes responsible for enhanced survival of P. gingivalis in presence of F. more...
Organism:
Filifactor alocis ATCC 35896; Porphyromonas gingivalis W83
Type:
Expression profiling by high throughput sequencing
Platforms:
GPL24003 GPL33711 GPL33710
9 Samples
Download data: CSV
Series
Accession:
GSE241660
ID:
200241660
18.

The transcriptional profile of 'Candidatus Epulopiscium viviparus' within Naso tonganus guts at different time points throughout its diurnal cycle

(Submitter supplied) Transcriptome of 'Candidatus Epulopiscium viviparus' type B cells found in Naso tonganus guts. The purpose is to see how the transcriptome of type B changes throughout the day as its host feeding pattern changes.
Organism:
Candidatus Epulonipiscium viviparus
Type:
Expression profiling by high throughput sequencing
Platform:
GPL33177
7 Samples
Download data: XLSX
Series
Accession:
GSE225926
ID:
200225926
19.

Effect of visible light on the transcriptome of Clostridium autoethanogenum during gas fermentation

(Submitter supplied) The expression profile of C. autoethanogenum DSM 10061 grown autotrophically with H2:CO:CO2 under visible light at an intensity of 4200 lux versus the expression profile of C. autoethanogenum DSM 10061 grown autotrophically in the dark
Organism:
Clostridium autoethanogenum
Type:
Expression profiling by high throughput sequencing
Platform:
GPL32417
6 Samples
Download data: TXT
Series
Accession:
GSE207468
ID:
200207468
20.

Identification of DraRS in C. difficile, a two-component regulatory system that responds to lipid II interacting antibiotics

(Submitter supplied) Clostridioides difficile is a Gram-positive opportunistic pathogen that results in 220,000 infections, 12,000 deaths, and upwards of $1 billion in medical costs in the US each year. C. difficile is highly resistant to a variety of antibiotics, but we have a poor understanding of how C. difficile senses and responds to antibiotic stress, and how such sensory systems affect clinical outcomes. There has been recent interest in using a daptomycin analog, Surotomycin, to treat C. more...
Organism:
Clostridioides difficile
Type:
Expression profiling by high throughput sequencing
Platform:
GPL33492
18 Samples
Download data: XLSX
Series
Accession:
GSE234961
ID:
200234961
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