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Measuring the effect of deoxycholate on Bacteroides fragilis gene expression

ABSTRACT: Measuring the effect of deoxycholate on Bacteroides fragilis gene expression

PROVIDER: PRJNA911175 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22681936_1.fastq.gz	Fastqsanger.gz
	SRR22681936_2.fastq.gz	Fastqsanger.gz
	SRR22681937_1.fastq.gz	Fastqsanger.gz
	SRR22681937_2.fastq.gz	Fastqsanger.gz
	SRR22681938_1.fastq.gz	Fastqsanger.gz

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Measuring the effect of deoxycholate on Bacteroides fragilis gene expression

Project description:We used RNAseq as an approach to assess the B. fragilis strain p207 response to the bile salt, deoxycholic acid (DC). A 6min DC exposure dramatically remodeled the transcriptome with approximately 20% of transcripts exhibiting significant changes. Chaperones and efflux systems were among the most highly induced genes, while protein synthesis genes were strongly repressed by DC.

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Expression analysis of Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2

Project description:Investigation of whole genome gene expression level changes in a Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 double mutant compared to the wild-type strain. Keywords: expression analysis A six chip study using total RNA recovered from three separate wild-type cultures of Bacteroides fragilis NCTC 9343 and three separate cultures of a double mutant strain, Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2, in which ungD1 (BF1706) and ungD2 (BF2848) are deleted. Each chip measures the expression level of 4,302 genes from Bacteroides fragilis NCTC 9343 and the associated plasmid pBF9343 with fourteen 24-mer probe pairs (PM/MM) per gene, with three-fold technical redundancy.

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Project description:Investigation of whole genome gene expression level changes in a Bacteroides fragilis NCTC 9343 delta-gmd-fcl delta-fkp mutant strain and a Bacteroides fragilis NCTC 9343 delta-lfg mutant strain, each as compared to the wild-type strain. The mutations engineered into these strains interfere with B. fragilis protein glycosylation.

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Project description:To elucidate whether Enterotoxigenic Bacteroides fragilis (ETBF) plays a role in colorectal cancer tumorigenesis, a RNA-seq analysis was performed to compare the gene expression profiles of ETBF treated DLD-1 colorectal cancer cell lines.

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Expression analysis of Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 delta-PSH acapsular mutant

Project description:Investigation of whole genome gene expression level changes in a Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 delta-PSH triple mutant, compared to the wild-type strain. The mutations engineered into this strain render it acapsular. The mutants analyzed in this study are further described in Coyne, M. J., M. Chatzidaki-Livanis, L. C. Paoletti, and L. E. Comstock. 2008. Role of glycan synthesis in colonization of the mammalian gut by the bacterial symbiont Bacteroides fragilis. PNAS 105(35):13098-13103 (PID 18723678). A six chip study using total RNA recovered from three separate wild-type cultures of Bacteroides fragilis NCTC 9343 and three separate cultures of a triple mutant strain, Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 delta-PSH, in which ungD1 (BF1706), ungD2 (BF2848), and six genes (BF3454 through BF3459) of the PSH capsular polysaccharide locus are truncated or deleted entirely. Each chip measures the expression level of 4,302 genes from Bacteroides fragilis NCTC 9343 and the associated plasmid pBF9343 with fourteen 24-mer probe pairs (PM/MM) per gene, with three-fold technical redundancy.

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