GEO DataSets

(Submitter supplied) Helicobacter pylori colonizes the gastric epithelium and is the leading cause of gastric adenocarcinoma. There is increasing evidence that DNA methylation regulates gene expression in addition to its role in genome protection. In this study, we characterize the impact of acidity, the Two-Component System (TCS) ArsRS, Autoinducer-2, and the Type I m6A DNA methyltransferase HsdM1 (HP0463) on the Helicobacter pylori methylome. more...

Organism:

Helicobacter pylori

Type:

Other

Platform:

GPL33724

6 Samples

Download data: CSV, GFF

(Submitter supplied) Helicobacter pylori (H. pylori) is a highly successful pathogen that constitutes a serious threat to human health. However, the dynamic interaction between H. pylori and human gastric epithelium has not been fully documented. Here, by leveraging the advantage of dual RNA sequencing technology, we characterized a cytotoxin-associated genes A (CagA)-modulated bacterial adoption strategy by reinforcing the expression of ATP-binding cassette (ABC) transporter-related genes, metQ and HP_0888 upon co-culturing with human gastric epithelial cells (GES-1), thus, to benefit intracellular H. more...

Organism:

Helicobacter pylori; Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL24676 GPL33770 GPL28668

21 Samples

Download data: XLSX

(Submitter supplied) To investigate the impact of the cagPAI on transcript regulation of H. pylori, RNA-seq was performed on bacterial samples with presence or absence of the cagPAI.

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19488

4 Samples

Download data: XLSX

(Submitter supplied) Purpose: Next-generation sequencing (NGS) was used to analyze gene expression in H. pylori strains expressing either WT Fur or a Fur variant (i.e. Fur-R88H). The goals of this study are to examine the role that WT Fur and Fur-R88H play in affecting salt-responsive gene expression in the 2 different strains. The H. pylori strains were grown in the presence of routine salt (0.5% added NaCl) or high salt (1.0% added NaCl).

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28668

15 Samples

Download data: XLSX

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

Organism:

mixed culture metagenome; Oxytricha trifallax; Escherichia coli; Helicobacter pylori

Type:

Methylation profiling by high throughput sequencing; Other

4 related Platforms

22 Samples

Download data: CSV, TXT

(Submitter supplied) DNA methylation plays important roles in foreign DNA defense, mismatch repair, and gene regulation in prokaryotic genomes. Existing methods for DNA methylation detection using next-generation sequencing (NGS) are incapable of simultaneously detecting multiple types of DNA methylation. Here, we present nitrite treatment followed by sequencing (NT-seq), a sequencing method to simultaneously detect adenine and cytosine methylation. more...

Organism:

Helicobacter pylori; Escherichia coli; mixed culture metagenome

Type:

Methylation profiling by high throughput sequencing; Other

Platforms:

GPL30644 GPL30645 GPL21222

14 Samples

Download data: CSV

(Submitter supplied) Pathogenic bacteria encounter a variety of stressful host environments during infection. Their responses to meet these challenges protect them from deadly damages and aid in adaption to harmful environments. Bacterial products critical for this protection are therefore interesting as suitable targets for new antimicrobials. To shed light on the complex array of molecular pathways involved in bacterial stress responses we challenged 32 diverse human pathogenic bacteria to 11 infection related stress conditions and catalogued their transcriptomes. more...

Organism:

Neisseria meningitidis; Staphylococcus epidermidis; Streptococcus pyogenes; Listeria monocytogenes; Salmonella enterica; Achromobacter xylosoxidans; Campylobacter jejuni; Francisella tularensis; Acinetobacter baumannii; Neisseria gonorrhoeae; Escherichia coli; Shigella flexneri; Aggregatibacter actinomycetemcomitans; Haemophilus influenzae; Staphylococcus aureus subsp. aureus MRSA252; Staphylococcus aureus subsp. aureus MSSA476; Borreliella burgdorferi; Pseudomonas aeruginosa; Legionella pneumophila; Klebsiella pneumoniae; Yersinia pseudotuberculosis; Vibrio cholerae; Streptococcus suis; Streptococcus agalactiae; Streptococcus pneumoniae; Mycobacterium tuberculosis; Burkholderia pseudomallei; Helicobacter pylori; Enterococcus faecalis

Type:

Expression profiling by high throughput sequencing

30 related Platforms

1122 Samples

Download data: TXT

(Submitter supplied) Purpose: Next-generation sequencing (NGS) was used to analyze pH-responsive gene expression in H. pylori. The goals of this study are to compare H. pylori pH-responsive gene expression in H. pylori strain 26695 and 26695 dervatives containing mutations to the ArsS, CrdS and FlgS sensor kinases.

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28668

24 Samples

Download data: TSV, XLSX

(Submitter supplied) Purpose: Next-generation sequencing (NGS) was used to analyze pH-responsive gene expression in H. pylori. The goals of this study are to compare H. pylori pH-responsive gene expression in H. pylori strain 26695 and 26695 dervatives containing mutations to the ArsRS two component system.

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28668

24 Samples

Download data: TSV, XLSX

(Submitter supplied) To further examine the roles of DppA, we performed RNA-seq analysis and investigated the genes expressed differentially between H. pylori 26695 and a ΔdppA strain.We found that 253 genes were differentially expressed with a |Log2 (fold change)| > 1, including 116 genes that were upregulated and 137 genes that were downregulated in ∆dppA (P < 0.05). We also performed functional classification of the genes upregulated and downregulated in ∆dppA. more...

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28668

4 Samples

Download data: XLS

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

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19489 GPL19488

10 Samples

Download data: WIG

(Submitter supplied) In this study several putative targets of the RRM protein RbpH (HP0827/HPG27_786) were identified. RNA binding targets of RbpH in two strains of H. pylori (G27 and 26695) were identified using RIP-seq.

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19489 GPL19488

6 Samples

Download data: WIG

(Submitter supplied) In this study several putative targets of the RRM protein RbpH (HPG27_786) were identified. Potential targets of RbpH in H. pylori (G27) were identified using total RNA-seq.

Organism:

Helicobacter pylori

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19488

4 Samples

Download data: WIG

(Submitter supplied) As the number of bacterial genomes and transcriptomes increases, so does the number of newly identified toxin–antitoxin (TA) systems. However, their functional characterization remains challenging, often requiring the use of overexpression vectors that can lead to misinterpretations. To fill this gap, we developed a systematic approach called FASTBAC-Seq (Functional AnalysiS of Toxin–Antitoxin Systems in BACteria by Deep Sequencing). more...

Organism:

Helicobacter pylori

Type:

Other

Platform:

GPL25687

6 Samples

Download data: XLS

(Submitter supplied) We investigated an improved method that combines competitive PCR and microarray techniques. This approach allowed us to quantify specific bacterial groups mounted on DNA chips with accuracy close to that of real-time PCR, despite a measurement at the end point of PCR, and also to estimate the bacterial DNA content in sample DNA.

Organism:

Neisseria meningitidis; Porphyromonas gingivalis; Fusobacterium nucleatum; Clostridium beijerinckii; Lactobacillus gasseri; Tannerella forsythia; Bacteria; Acinetobacter baumannii; Escherichia coli; Staphylococcus aureus; Staphylococcus epidermidis; Bacillus cereus; Schaalia odontolytica; Fusobacterium nucleatum subsp. nucleatum; Treponema denticola; Cereibacter sphaeroides; Streptococcus gordonii; Streptococcus agalactiae; Enterococcus faecalis; Bifidobacterium adolescentis; Homo sapiens; Prevotella intermedia; Prevotella nigrescens; Campylobacter rectus; Helicobacter pylori; Pseudomonas aeruginosa; Aggregatibacter actinomycetemcomitans; Phocaeicola vulgatus; Capnocytophaga gingivalis; Deinococcus radiodurans; Streptococcus mutans; Streptococcus intermedius; Cutibacterium acnes

Type:

Other

Platform:

GPL25612

178 Samples

Download data: CSV

(Submitter supplied) Background Gastric Helicobacter pylori colonization leads to iron deficiency anemia (IDA), especially in children and adolescents. However the pathogenesis is poorly understood. Objective We sought to identify specific H. pylori genes involved in IDA development, by comparing bacterial genome-wide expression profiling in patients affected or not. Methods H. pylori were isolated from four children with IDA and four from matched controls without IDA. more...

Organism:

Helicobacter pylori 26695; Helicobacter pylori

Type:

Expression profiling by array

Platform:

GPL23824

12 Samples

Download data: PAIR, TXT

(Submitter supplied) Differential gene transcript amounts between Helicobacter pylori N6 (wild type strain) bacteria and isogenic tlpD mutant grown in liquid culture to similar O.D.600 (1.0; mid log)

Organism:

Helicobacter pylori N6; Helicobacter pylori

Type:

Expression profiling by array

Platform:

GPL21688

4 Samples

Download data: TXT

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

Organism:

Escherichia coli; Shigella flexneri; Haemophilus influenzae; Staphylococcus aureus; Lactobacillus delbrueckii subsp. bulgaricus; Mycobacterium avium; Human betaherpesvirus 6; human gammaherpesvirus 4; Human T-cell leukemia virus type I; Coxsackievirus A9; Human herpesvirus 4 type 2; Chlamydia pneumoniae; Human poliovirus 3 strain Sabin; Betapolyomavirus macacae; Helicobacter pylori; Yersinia enterocolitica; Chlamydia trachomatis; Mycobacterium tuberculosis variant bovis; Human alphaherpesvirus 2; Hepatitis C virus isolate HC-J6; Coxsackievirus B4; Coxsackievirus A20; Porphyromonas gingivalis W83; Mycobacterium avium subsp. paratuberculosis K-10; Klebsiella pneumoniae; Porphyromonas gingivalis; Mycobacterium avium subsp. paratuberculosis; Mycobacterium tuberculosis; Homo sapiens; Mus musculus; Human alphaherpesvirus 1; Human betaherpesvirus 5; Human herpesvirus 4 strain B95-8; Human immunodeficiency virus 1; Human herpesvirus 4 type 1; Coxsackievirus B4 (strain E2); Proteus mirabilis; Streptococcus pyogenes; Mycobacterium gordonae; Trypanosoma cruzi; Caprine arthritis encephalitis virus; Human T-cell lymphotrophic virus type 1 (isolate MT-2); Human adenovirus 12; Human endogenous retrovirus K; Human Endogenous Retrovirus IDDMK1,2-22; Torque teno virus; Prochlorococcus marinus str. MIT 9202; Human rotavirus MP409; Paraburkholderia fungorum; Staphylococcus aureus A9635; Hepacivirus hominis

Type:

Protein profiling by protein array

Platforms:

GPL19701 GPL19700 GPL19692

29 Samples

Download data: XLSX

(Submitter supplied) The aim of the array was to determine the BXD2 mouse sera IgG and IgM reactivity profile to linear peptide epitopes. Pooled sera from three 6-9 month old BXD2 mice was diluted at 1:200 for IgG specific analysis or 1:1000 for IgM specific analysis and incubated on a PEPperPRINT peptide microarray platform printed with peptide autoantigens

Organism:

Chlamydia trachomatis; Streptococcus pyogenes; Mycobacterium tuberculosis variant bovis; Mycobacterium tuberculosis; Trypanosoma cruzi; Homo sapiens; Human herpesvirus 4 strain B95-8; Human T-cell lymphotrophic virus type 1 (isolate MT-2); Coxsackievirus B4; Human adenovirus 12; Human Endogenous Retrovirus IDDMK1,2-22; Human rotavirus MP409; Hepacivirus hominis; Escherichia coli; Klebsiella pneumoniae; Proteus mirabilis; Porphyromonas gingivalis; Staphylococcus aureus; Mycobacterium avium subsp. paratuberculosis; Mycobacterium gordonae; Mus musculus; Human betaherpesvirus 6; Human immunodeficiency virus 1; Human herpesvirus 4 type 2; Human herpesvirus 4 type 1; Human endogenous retrovirus K; Chlamydia pneumoniae; Human poliovirus 3 strain Sabin; Helicobacter pylori; Shigella flexneri; Yersinia enterocolitica; Human alphaherpesvirus 2; Hepatitis C virus isolate HC-J6; Human T-cell leukemia virus type I; Coxsackievirus A20; Torque teno virus; Prochlorococcus marinus str. MIT 9202; Paraburkholderia fungorum; Porphyromonas gingivalis W83; Mycobacterium avium subsp. paratuberculosis K-10; Staphylococcus aureus A9635; Haemophilus influenzae; Lactobacillus delbrueckii subsp. bulgaricus; Mycobacterium avium; Human alphaherpesvirus 1; Human betaherpesvirus 5; human gammaherpesvirus 4; Coxsackievirus A9; Coxsackievirus B4 (strain E2); Betapolyomavirus macacae

Type:

Protein profiling by protein array

Platform:

GPL19701

2 Samples

Download data: XLSX

(Submitter supplied) The aim of the array was to determine the B6 mouse sera IgG and IgM reactivity profile to linear peptide epitopes. Pooled sera from three 6-9 month old B6 mice was diluted at 1:200 for IgG specific analysis or 1:1000 for IgM specific analysis and incubated on a PEPperPRINT peptide microarray platform printed with peptide autoantigens

Organism:

Chlamydia trachomatis; Streptococcus pyogenes; Mycobacterium tuberculosis variant bovis; Trypanosoma cruzi; Human betaherpesvirus 6; Human T-cell lymphotrophic virus type 1 (isolate MT-2); Coxsackievirus B4; Human adenovirus 12; Human endogenous retrovirus K; Human Endogenous Retrovirus IDDMK1,2-22; Human rotavirus MP409; Hepacivirus hominis; Haemophilus influenzae; Lactobacillus delbrueckii subsp. bulgaricus; Mycobacterium avium; Mycobacterium tuberculosis; Homo sapiens; Human alphaherpesvirus 1; Human betaherpesvirus 5; human gammaherpesvirus 4; Human herpesvirus 4 strain B95-8; Human T-cell leukemia virus type I; Coxsackievirus A9; Prochlorococcus marinus str. MIT 9202; Coxsackievirus B4 (strain E2); Staphylococcus aureus A9635; Betapolyomavirus macacae; Helicobacter pylori; Proteus mirabilis; Yersinia enterocolitica; Porphyromonas gingivalis; Mycobacterium gordonae; Human alphaherpesvirus 2; Hepatitis C virus isolate HC-J6; Human herpesvirus 4 type 1; Coxsackievirus A20; Torque teno virus; Paraburkholderia fungorum; Porphyromonas gingivalis W83; Mycobacterium avium subsp. paratuberculosis K-10; Escherichia coli; Klebsiella pneumoniae; Shigella flexneri; Staphylococcus aureus; Mycobacterium avium subsp. paratuberculosis; Mus musculus; Human immunodeficiency virus 1; Human herpesvirus 4 type 2; Chlamydia pneumoniae; Human poliovirus 3 strain Sabin

Type:

Protein profiling by protein array

Platform:

GPL19701

2 Samples

Download data: XLSX