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Drosophila melanogaster

ABSTRACT: Drosophila melanogaster S2 cells nucleosome occupancy data after simulation by heat killed Salmonella typhimurium

PROVIDER: PRJNA271150 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1734760_1.fastq.gz	Fastqsanger.gz
	SRR1734760_2.fastq.gz	Fastqsanger.gz
	SRR1734761_1.fastq.gz	Fastqsanger.gz
	SRR1734761_2.fastq.gz	Fastqsanger.gz
	SRR1734762_1.fastq.gz	Fastqsanger.gz

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Drosophila melanogaster

Project description:Drosophila melanogaster S2 cells nucleosome occupancy data after simulation by heat killed Staphylococcus aureus

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Drosophila melanogaster S2 cells nucleosome occupancy data after simulation by heat killed Salmonella typhimurium

Project description:In eukaryotes, nucleosomes participate in all DNA-templated events by regulating access to the underlying DNA sequence. However, the dynamics of nucleosomes during a genome response has not been well characterized . We stimulated Drosophila S2 cells with heat-killed Gram-negative bacteria Salmonella typhimurium, and mapped genome-wide nucleosome occupancy at high temporal resolution by MNase-seq using Illumina HiSeq 2500. We show widespread nucleosome occupancy change in S2 cells during the immune response, with the biggest nucleosomal loss occurring at 4hr post stimulation.

2014-12-24 | GSE64507 | GEO

Drosophila melanogaster S2 cells nucleosome occupancy data after simulation by heat killed Salmonella typhimurium

Project description:In eukaryotes, nucleosomes participate in all DNA-templated events by regulating access to the underlying DNA sequence. However, the dynamics of nucleosomes during a genome response has not been well characterized . We stimulated DrosophilaM-BM- S2 cells with heat-killed Gram-negative bacteria Salmonella typhimurium, and mapped genome-wide nucleosome occupancy at high temporal resolution by MNase-seq using Illumina HiSeq 2500. We show widespread nucleosome occupancy change in S2 cells during the immune response, with the biggest nucleosomal loss occurring at 4hr post stimulation. Drsophila S2 cells at 0hr, 30minutes, 1hr and 4hr post heat-killed Salmonella typhimuriumstimulation

2014-12-24 | E-GEOD-64507 | biostudies-arrayexpress

Drosophila melanogaster S2 cells nucleosome occupancy data after simulation by heat killed Staphylococcus aureus

Project description:The innate immune response is among the strongest genomic responses and is conserved across all metazoa. Although transcription during the innate immune response has been well studied, the associated chromatin reorganizations are largely uncharacterized. Here we show that Drosophila S2 cells stimulated with Staphylococcus aureus display a dynamic change in genome-wide nucleosome occupancy and sensitivity. We found a widespread and transient nucleosomal loss peaking at 30 minutes post stimulation, and we demonstrated that the regulatory potentials of nucleosomes differ following stimulation. In addition, we identified differentially sensitive nucleosomes with response-specific potentials. Our results provide high-resolution nucleosome-distribution maps of the fly genome, revealing chromatin's role in: the innate immune response to Gram-positive bacteria, response-specific regulatory-factor binding, and nucleosome sensitivity. We identify functional chromatin regulatory features associated with immune response, and lay a foundation for a framework linking general and locus-specific roles for nucleosomes in immune regulation. Drsophila S2 cells at 0hr, 30minutes, 1hr and 4hr post heat-killed Staphylococcus aureus stimulation

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