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Mouse gut metagenome

ABSTRACT: mice intestine microbiota using Miseq sequencing

PROVIDER: PRJNA294124 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2190790.fastq.gz	Fastqsanger.gz
	SRR2190792.fastq.gz	Fastqsanger.gz
	SRR2190783.fastq.gz	Fastqsanger.gz
	SRR2190794.fastq.gz	Fastqsanger.gz
	SRR2190796.fastq.gz	Fastqsanger.gz

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mouse gut metagenome

Project description:mice intestine metagenome hiseq sequencing

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Relating human gut metagenome and metaproteome

Project description:Gut microbiome research is rapidly moving towards the functional characterization of the microbiota by means of shotgun meta-omics. Here, we selected a cohort of healthy subjects from an indigenous and monitored Sardinian population to analyze their gut microbiota using both shotgun metagenomics and shotgun metaproteomics. We found a considerable divergence between genetic potential and functional activity of the human healthy gut microbiota, in spite of a quite comparable taxonomic structure revealed by the two approaches. Investigation of inter-individual variability of taxonomic features revealed Bacteroides and Akkermansia as remarkably conserved and variable in abundance within the population, respectively. Firmicutes-driven butyrogenesis (mainly due to Faecalibacterium spp.) was shown to be the functional activity with the higher expression rate and the lower inter-individual variability in the study cohort, highlighting the key importance of the biosynthesis of this microbial by-product for the gut homeostasis. The taxon-specific contribution to functional activities and metabolic tasks was also examined, giving insights into the peculiar role of several gut microbiota members in carbohydrate metabolism (including polysaccharide degradation, glycan transport, glycolysis and short-chain fatty acid production). In conclusion, our results provide useful indications regarding the main functions actively exerted by the gut microbiota members of a healthy human cohort, and support metaproteomics as a valuable approach to investigate the functional role of the gut microbiota in health and disease.

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Project description:We compared gene expression in the small intestine (ileum) of mice that were either (i) germ-free, (ii) colonized with a conventional mouse cecal microbiota, (iii) colonized with a conventional zebrafish gut microbiota, or (iv) colonized with Pseudomonas aeruginosa PAO1. Experiment Overall Design: Adult germ-free NMRI mice were colonized with either (i) a conventional mouse cecal microbiota harvested from adult Swiss-Webster mice (5 biological replicates), (ii) a conventional zebrafish intestinal microbiota harvested from adult C32 zebrafish (3 biological replicates), or (iii) a culture of Pseudomonas aeruginosa PAO1 (5 biological replicates). 14 days after colonization, total RNA was prepared from the ileum of each animal, with total RNA prepared from adult germ-free NMRI mouse ileum serving as negative controls (5 biological replicates). RNA was used as template to generate cRNA for hybridization to Affymetrix 430 v2 Mouse GeneChips.

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Project description:mice intestine metagenome Raw sequence reads

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Microbiota-driven epigenetic alterations in intestinal epithelial cells [ChIP-seq]

Project description:We compare H3K9Ac enrichment in intestinal epithelial cells from intestine of germ-free and microbiota-replete (conventionally-housed) mice. Intestinal epithelial cells were harvested from the intestine of conventional or germ-free C57Bl6J mice. Chromatin immunoprecipitation was performed with anti-H3K9Ac. Sequencing was performed using the Illumina HiSeq2500. Reads were mapped to the mm10 genome using Bowtie. Microbiota induce loss of H3K9Ac within mulitple sites of the Clec2e gene.

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