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ABSTRACT: Whole genome sequencing of 27 isolated Bacteroides thetaiotaomicron bacteriophages

PROVIDER: PRJNA606391 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11097300.fastq.gz	Fastqsanger.gz
	SRR11097301.fastq.gz	Fastqsanger.gz
	SRR11097302.fastq.gz	Fastqsanger.gz
	SRR11097303.fastq.gz	Fastqsanger.gz
	SRR11097304.fastq.gz	Fastqsanger.gz

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Transcription analysis of E. coli O103:H25 in co-culture with Bacteroides thetaiotaomicron CCUG 10774

2014-12-18 | GSE44790 | GEO

Genome-wide RNA-seq of Bacteroides thetaiotaomicron VPI-5482 with Bacteroides phage challenge

Project description:Purpose: Examining the transcriptome of Bacteroides thetaiotaomicron VPI-5482 challenged with Bacteroides phage to assess surface molecule expression changes Methods: Bacteroides thetaiotaomicron was grown in BPRM in vitro or Germ-Free mice were monocolonized with Bacteroides thetaiotaomicron and gavaged with ARB25 phage. Fold change was calculated as live phage versus heat-killed phage treated samples with n=3 biological replicates. Once cells reached an optical density corresponding to mid-log phase growth (absorbance between 0.4-0.5), RNA was isolated and rRNA depleted. Samples were multiplexed for sequencing on the Illumina HiSeq platform at the University of Michigan Sequencing Core. Data was analyzed using Arraystar software (DNASTAR, Inc.) using DEseq2 normalization with default parameters. Genes with significant up- or down-regulation were determined by the following criteria: genes with an average fold-change >5-fold and with at least 2/3 biological replicates with a normalized expression level >1% of the overall average, and a p-value < 0.05 (t test with Benjamini-Hochberg correction) Results: Specific capsule expression was increased in wild-type B. thetaiotaomicron during phage infection in vitro and in vivo. Many corresponding in vivo genes were upregulated as well as other surface layer proteins.

2020-05-01 | GSE147071 | GEO

Transcription analysis of E. coli O103:H25 in co-culture with Bacteroides thetaiotaomicron CCUG 10774

Project description:Investigation of whole genome gene expression level changes in E. coli O103:H25 in co-culture with Bacteroides thetaiotaomicron CCUG 10774 compared to when E. coli is cultured individually. A study using total RNA recovered from three separate co-cultures (E. coli O103:H25 and B. thetaiotaomicron 1:100) at OD=0.5, compared to when E. coli is cultured individually (5 separate samples including 1-3 technical replicates of each sample). Three separate samples are also recovered when E. coli is cultured in supernatant from Bacteroides thetaiotaomicron at OD=0.5 compared to when E coli is cultured alone. A comparison is also done after treatment with Mitomycin C (MMC). MMC is added at OD=0.5. There are 3 separate samples from each group that are compared (co-culture versus E. coli grown individually, E. coli in supernatant from B. thetaiotaomicron versus E. coli grown individually).

2014-12-18 | E-GEOD-44790 | biostudies-arrayexpress

Gene expression of Bacteroides thetaiotaomicron, in vivo with and without IgA 225.4

Project description:Rag1-/- C57BL/6 or Rag1-/- C57BL/6 injected with the IgA producing hybridoma producing 225.4 anti- Bacteroides thetaiotaomicron (Capsular polysaccharide 4 dependent carbohydrate epitope specific epitope) mice were colonized with B. thetaiotaomicron wildtype strain VPI-5482 for 10 days. Cecal bacteria were harvested and snap frozen and RNA isolated. Keywords: Single time point, experimental and control groups.

2007-12-27 | GSE9019 | GEO

In vitro transcriptional profiling of Bacteroides thetaiotaomicron in lactose, galactose and human milk oligosaccharides

2013-01-01 | GSE26772 | GEO

Elucidating BT4338 binding in Bacteroides thetaiotaomicron following 10 minutes of carbon starvation.

Project description:Use ChIPseq to elucidate BT4338 binding in Bacteroides thetaiotaomicron following 10 minutes of carbon starvation.

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In vitro transcriptional profiling of Bacteroides thetaiotaomicron in lactose, galactose and human milk oligosaccharides

Project description:Investigation of the overall in vitro response of Bacteroides thetaiotaomicron to human milk oligosaccharides. Comparison with response to MM-lactose and MM-galactose (Analysis performed using as a baseline datasets GSM301635 and GSM301637 corresponding to Bacteroides thetaiotaomicron response in MM-Glucose) In vitro transcriptional profiles of Bacteroides thetaiotaomicron obtained from biological duplicate cultures taken: (i) at middle log phase in minimal media galactose (MM-Gal) and minimal media lactose (MM-L) and (ii) at two timepoints during log phase in minimal media human milk oligosaccharides (MM-HMO).

2013-01-01 | E-GEOD-26772 | biostudies-arrayexpress

Depolymerization of plant cell wall glycans by symbiotic human gut bacteria (Bacteroides thetaiotaomicron)

Project description:Symbiotic bacteria inhabiting the distal human gut have evolved under intense pressure to utilize complex carbohydrates, predominantly plant cell wall glycans abundant in our diets. These substrates are recalcitrant to depolymerization by digestive enzymes encoded in the human genome, but are efficiently targeted by some of the ~103-104 bacterial species that inhabit this niche. These species augment our comparatively narrow carbohydrate digestive capacity by unlocking otherwise unusable sugars and fermenting them into host-absorbable forms, such as short-chain fatty acids. We used phenotype profiling, whole-genome transcriptional analysis and molecular genetic approaches to investigate complex glycan utilization by two fully sequenced and closely related human gut symbionts: Bacteroides thetaiotaomicron and Bacteroides ovatus. Together these species target all of the common glycosidic linkages found in the plant cell wall, as well as host polysaccharides, but each species exhibits a unique ‘glycan niche’: in vitro B. thetaiotaomicron targets plant cell wall pectins in addition to linkages contained in host N- and O-glycans; B. ovatus uniquely targets hemicellulosic polysaccharides along with several pectins, but is deficient in host glycan utilization. Growth of Bacteroides thetaiotaomicron in vitro in minimal medium plus different purified complex glycans. Observation of increased gene expression was used to determine genes that are involved in metabolism of each glycan. Two biological replicates each.

2011-05-01 | E-GEOD-25572 | biostudies-arrayexpress

Role of OxyR and iron in gene regulation in Bacteroides thetaiotaomicron

Project description:Role of OxyR and iron in gene regulation in Bacteroides thetaiotaomicron

2023-03-30 | GSE169260 | GEO

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Project description:Engineered Bacteroides thetaiotaomicron whole genome sequencing and assembly

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