Clostridium
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA735695 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| JAHLDF01.dat.gz | Other | |||
| JAHLDF01.fasta.gz | Fasta.gz | |||
| JAHLDF01.master.dat | Other | |||
| JAHLDG01.dat.gz | Other |
Items per page: 5 1 - 5 of 25 |
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Project description:The purpose of this study was to determine the level of genomic content similarity among selected strains of Clostridium botuinum type F strains.
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Project description:Genomic DNA of 61 strains of proteolytic Clostridium botulinum or Clostridium sporogenes was subjected to analysis by DNA microarray.
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Project description:Transcriptome profiles for Clostridium thermocellum ATCC 27405 wild type strain and two ethanol-adapted strains, E50A and E50C were generated to gain insights into ethanol tolerance. Details of the strains have been described, Shao X., et al. Appl Microbiol Biotechnol (2011) 92:641–652.
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Project description:The purpose of this study was to determine the level of genomic content similarity among selected strains of Clostridium botuinum type F strains. In this study, strains were selected that had already been chacaterized by botulinum neurotoxin gene sequencing. Strains harboring bont/F1, bont/F4 and bont/F5 were compared.
2013-12-19 | E-GEOD-53456 | biostudies-arrayexpress
Project description:To develop a method for improved assessment of the genetic stability of bacterial vaccine strains, we applied next-generation sequencing to a Clostridium tetani model strain (including inter- and intra-lab replicates) and other strains. Data were processed to determine (gain or loss of) gene copy numbers. Strains could easily be distiguished based on gain/loss of prophage-like and CRISPR/Cas genes. We found that the model strain has multiple copies of the plasmid carrying the gene coding for tetanus toxin as well as several other genes. Data were reproducible within and between laboratories. The limit of detection of our method is an order of magnitude better than that of the pulsed-field gel electrophoresis (PFGE) currently used during manufacturing. This approach may part of an approach to reduce animal testing during vaccine manufacturing.
2020-02-15 | GSE144242 | GEO
Project description:Clostridium difficile is a gram-positive, spore-forming enteric anaerobe which can infect humans and a wide variety of animal species. Recently, the incidence and severity of human C. difficile infection has markedly increased. In this study, we evaluated the genomic content of 73 C. difficile strains isolated from humans, horses, cattle, and pigs by comparative genomic hybridization with microarrays containing coding sequences from C. difficile strains 630 and QCD-32g58. The sequenced genome of C. difficile strain 630 was used as a reference to define a candidate core genome of C. difficile and to explore correlations between host origins and genetic diversity. Approximately 16% of the genes in strain 630 were highly conserved among all strains, representing the core complement of functional genes defining C. difficile. Absent or divergent genes in the tested strains were distributed across the entire C. difficile 630 genome and across all the predicted functional categories. Interestingly, certain genes were conserved among strains from a specific host species, but divergent in isolates with other host origins. This information provides insight into the genomic changes which might contribute to host adaptation. Due to a high degree of divergence among C. difficile strains, a core gene list from this study offers the first step toward the construction of diagnostic arrays for C. difficile.investigated by determining changes in transcript profiles when aerobic steady-state cultures were depleted of air.
2010-12-01 | GSE19343 | GEO
Project description:Clostridium difficile is a gram-positive, spore-forming enteric anaerobe which can infect humans and a wide variety of animal species. Recently, the incidence and severity of human C. difficile infection has markedly increased. In this study, we evaluated the genomic content of 73 C. difficile strains isolated from humans, horses, cattle, and pigs by comparative genomic hybridization with microarrays containing coding sequences from C. difficile strains 630 and QCD-32g58. The sequenced genome of C. difficile strain 630 was used as a reference to define a candidate core genome of C. difficile and to explore correlations between host origins and genetic diversity. Approximately 16% of the genes in strain 630 were highly conserved among all strains, representing the core complement of functional genes defining C. difficile. Absent or divergent genes in the tested strains were distributed across the entire C. difficile 630 genome and across all the predicted functional categories. Interestingly, certain genes were conserved among strains from a specific host species, but divergent in isolates with other host origins. This information provides insight into the genomic changes which might contribute to host adaptation. Due to a high degree of divergence among C. difficile strains, a core gene list from this study offers the first step toward the construction of diagnostic arrays for C. difficile.
2008-02-01 | GSE9693 | GEO
Project description:Clostridium difficile (C. difficile) strains belonging to PCR ribotype 027, PFGE type NAP1, REA type B1 and toxinotype III, termed NAP1/027, have been implicated in the increased frequency of outbreaks of Clostridium difficile-associated diarrhoea (CDAD) in North America and Europe. The NAP1/027 strains appears to be more virulent with an increased mortality and frequency of relapse. Current European C. difficile microarrays are designed to the first sequenced and annotated C. difficile complete genome - strain 630 (ribotype 12). A high density oligonucleotide microarray was designed to C. difficile 630 (CD630) sequence and extra probes corresponding to two PCR ribotypes O27 strains C. difficile R20291 and QCD-32g58 were also included. Comparative genomic hybridisation was used to identify markers of ribotype 027 strains and markers to identify CD630. Strains hybridised to the array included the most prevalent ribotypes found in the UK and Europe (106 and 001) as well as the emerging hypervirulent ribotype 078.
2010-07-01 | E-MTAB-162 | biostudies-arrayexpress
Project description:Genome of vaccine strains: Clostridium Tetani
| PRJNA341856 | ENA