[Haemophilus] ducreyi 35000HP
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ABSTRACT:
PROVIDER: PRJNA110533 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Haemophilus ducreyi 35000HP was subjected to different in vitro growth conditions that resemble the in vivo host environment (presence of serum), in order to ascertain the overall changes in gene expression. This information might identify genes important for colonization and/or survival inside the host. H. ducreyi 35000HP was grown for 8 hours in Columbia broth in the presence or absence of FCS. After 8 hours total RNA was isolated and processed for DNA microarray analysis. This study includes four biological replicates (paired samples of bacteria grown in the presence/absence of FCS), one of which (Rep1) was selected for dye swap.
2010-05-18 | E-GEOD-13851 | biostudies-arrayexpress
Project description:Comparative analysis of the global gene expression of a Haemophilus ducreyi 35000HP cpxA deletion mutant relative to the wild type strain
2011-05-03 | GSE21788 | GEO
Project description:Haemophilus ducreyi 35000HPfis relative to 35000HP
| PRJNA189789 | ENA
Project description:Haemophilus ducreyi 35000HPhfq relative to 35000HP
| PRJNA190031 | ENA
Project description:Haemophilus ducreyi 35000HPcpxA gene expression relative to 35000HP
| PRJNA127317 | ENA
Project description:Comparative analysis of the global gene expression of a Haemophilus ducreyi 35000HP cpxA deletion mutant relative to the wild type strain After the cpxA mutant was generated, both strain were grown in Columbia Broth. After 8 hr of growth RNA wa isolated and processed for DNA microarray analysis. This study includes three biological replicates (paired samples), and all three were subjected to dye swap.
2011-05-03 | E-GEOD-21788 | biostudies-arrayexpress
Project description:To potentially understand how H. ducreyi responds to membrane stress, here we defined RpoE-dependent genes using RNA-Seq. We identified 180 RpoE-dependent genes, of which 98% were upregulated; a major set of these genes encodes homologues of envelope maintenance and repair factors. We also identified and validated a putative RpoE promoter consensus sequence, which was enriched in the majority of RpoE-dependent targets. Comparison of RpoE-dependent genes to those controlled by CpxR showed that each transcription factor regulated a distinct set of genes. Given that RpoE activated a large number of genes encoding envelope maintenance and repair factors and CpxRA represses genes encoding envelope-localized proteins, these data suggest that RpoE and CpxRA appear to play distinct yet complementary roles in regulating envelope homeostasis in H. ducreyi. RNA of Haemophilus ducreyi 35000HP wild-type strain containing a rpoE inducible plasmid and wild-type strain containing a control plasmid were collected at 0 minutes, 5 minutes, and 10 minutes after induction in quadruplicate.
2015-11-21 | E-GEOD-75238 | biostudies-arrayexpress
Project description:Haemophilus ducreyi 35000HP was subjected to different in vitro growth conditions that resemble the in vivo host environment (presence of serum), in order to ascertain the overall changes in gene expression. This information might identify genes important for colonization and/or survival inside the host.
2009-12-05 | GSE13851 | GEO
Project description:Transcriptomes of 35000HP, ΔcpxA, ΔcpxR mutant strains of Haemophilus ducreyi in mid-log, transition, and stationary phase
| PRJNA302861 | ENA
Project description:To better understand the molecular mechanisms underlying Haemophilus ducreyi infection in humans, here we determined the transcriptional profile of H. ducreyi in human lesions using RNA-Seq and compared it to that of in vitro growth. We were able to show that the in vivo transcriptome did not resemble that of in vitro growth. Compared to the inoculum, H. ducreyi harvested from pustules differentially expressed ~120 genes, of which 68 were upregulated. A large proportion of the upregulated genes encoded homologs of proteins involved in nutrient transport, alternative carbon pathways, growth arrest response, heat shock response, and DNA recombination. H. ducreyi upregulated few genes or operons (hgbA, flp-tad, and lspB-lspA2) required for human infection; expression of these genes is known to increase under nutrient stress. Homologs of several genes involved in anaerobic metabolism and ascorbate utilization were upregulated in vivo, suggesting that the organism is adjusting its metabolism to anaerobiosis in vivo.
2015-11-21 | GSE75236 | GEO