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Drosophila melanogaster

ABSTRACT: Distribution of Drosophila insulator protein BEAF-32 in Wing imaginal tissue (Wildtype) [ChIP-seq]

PROVIDER: PRJNA155467 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR447742.fastq.gz	Fastqsanger.gz
	SRR447743.fastq.gz	Fastqsanger.gz
	SRR447744.fastq.gz	Fastqsanger.gz
	SRR447745.fastq.gz	Fastqsanger.gz
	SRR447746.fastq.gz	Fastqsanger.gz

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BEAF-32 insulator regulates gene expression of genes involved in cell polarity and neoplastic growth.

Project description:This SuperSeries is composed of the following subset Series: GSE36735: Distribution of Drosophila insulator protein BEAF-32 in Wing imaginal tissue (Wildtype) [ChIP-seq] GSE36736: Genome wide transcriptional profiling of BEAF-32 in wing imaginal tissues of wildtype and mutants [expresion array] Refer to individual Series

2012-07-05 | E-GEOD-36737 | biostudies-arrayexpress

Distribution of Drosophila insulator protein BEAF-32 in Wing imaginal tissue (Wildtype) [ChIP-seq]

Project description:Chromatin insulators are DNA protein complexes that mediate inter and intra chromosomal interactions. Boundary Element Associated Factor- 32 (BEAF-32) is an insulator protein predominantly found near gene promoters and thought to play a role in gene expression. We find that mutations in BEAF-32 are lethal, show loss of epithelial morphology in imaginal discs and cause neoplastic growth defects. To investigate the molecular mechanisms underlying this phenotype, we carried out a genome-wide analysis of BEAF-32 localization in wing imaginal disc cells. Mutation of BEAF-32 results in miss-regulation of 3850 genes by at least 1.5-fold, 647 of which are bound by this protein in wing imaginal cells. Up-regulated genes encode proteins such as Bazooka, a determinant of cell polarity; the Insulin receptor-1 and the p70-S6 kinase, involved in the insulin growth factor pathway that can activate various pathways involved in cell proliferation; and the Unpaired 3 ligand of the Janus kinase (JNK) pathway, and its target gene Socs35, which can also activate cell proliferation. The expression of genes involved in DNA homologous end repair and oxidative stress pathways is also increased in BEAF-32 mutants. Among the down-regulated genes are those encoding components of the Wingless pathway, which is required for cell differentiation, and amino acid metabolism. Miss-regulation of these genes explains the unregulated cell growth and neoplastic phenotypes observed in imaginal tissues of BEAF-32 mutants. Here we examine mapping the genomic binding sites and its distribution of BEAF-32, a Drosophila insulator proteins in wing imaginal tissue. We performed ChIP-seq analysis using BEAF-32B.

2012-07-05 | E-GEOD-36735 | biostudies-arrayexpress

Distribution of Drosophila insulator protein BEAF-32 in Wing imaginal tissue (Wildtype) [ChIP-seq]

2012-07-06 | GSE36735 | GEO

Drosophila melanogaster

Project description:Genome wide transcriptional profiling of BEAF-32 in wing imaginal tissues of wildtype and mutants [expresion array]

| PRJNA155469 | ENA

Gene expression profile of Drosophila third instar larval wing imaginal discs overexpressing netrinA (netA) and frazzled (fra).

2013-05-21 | GSE47113 | GEO

Gene expression profile of Drosophila third instar larval wing imaginal discs overexpressing netrinA (netA) and frazzled (fra).

Project description:In order to analyze the global changes in gene expression resulting from induction of NetA-Fra signaling, we carried out a microarray experiment comparing Drosophila third instar wing imaginal discs in which Net+Fra had been overexpressed to age matched wild type wing imaginal discs. RNA extracted from both +NetA-Fra overexpression and wildtype third instar imaginal discs were hybridized to the Affymetrix GeneChip Drosophila Genome 2.0 . Heat shock induced GFP-marked clones ectopically expressing NetA+Fra in larvae were generated. Controls for this study included age matched wildtype third instar wing imaginal discs bearing GFP clones which were prepared in the same manner. Total RNA was extracted from dissected +NetA-Fra vs. control third instar wing imaginal discs and hybridized to the Affymetrix GeneChip Drosophila Genome 2.0.

2013-05-21 | E-GEOD-47113 | biostudies-arrayexpress

Expression profiles from Drosophila melanogaster scrib and lgl mutant wing imaginal disc and brain complexes at day 9 after egg deposition (AED) versus wild type at day 5 AED

Project description:mRNA microarray of Drosophila wing imaginal discs or brain complexes from lgl27S3/lglE2S31 (lgl-null), scrib1/scrib2 or wild-type 3rd instar larvae RNA was isolated from 20 pairs of wing discs/brain complexes per sample (i.e 20 individuals). Samples were from 5 day AED wildtype and 9 day AED mutant tissue

2014-01-31 | GSE48852 | GEO

ChIP-seq study of BEAF binding in four Drosophila spcies

Project description:Insulators are considered as chromosome organizers. BEAF, one of the insulator proteins, is highly conserved in Drosophila speies but also limited to Drosophila spcies. BEAF associates with TSS of active genes. Comparative study of BEAF binding landscapes in four Drosophila species reveals BEAF association with gene pairs, and the results suggest the role of gain or loss of BEAF binding during the speciation of Drosophila species.

2012-08-03 | GSE35648 | GEO

Drosophila melanogaster

Project description:Next Generation Sequencing analysis of Functional Interactions among Insulator Proteins [Beaf-32 ChIP-seq]

| PRJNA230554 | ENA

Distribution of Drosophila insulator proteins after ecdysone treatment in Kc cells

Project description:Here we examine changes in the distribution of Drosophila insulator proteins during the ecdysone response. We performed ChIP-seq analysis in Kc cells at 0, 3, and 48 hours of ecdysone treatment with antibodies against CP190, Su(Hw), dCTCF, and BEAF-32B.

2011-10-14 | GSE30740 | GEO

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