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Protein interactions within PLEIOHOMEOTIC-repressive complex are critical for its recruitment to Polycomb target genes

ABSTRACT: This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: Yuri Schwartz

PROVIDER: E-GEOD-41854 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Protein interactions within PLEIOHOMEOTIC-repressive complex are critical for its recruitment to Polycomb target genes (Human)

Project description:PcG proteins are critical epigenetic regulators of development. Here we have determined genomic distributions of H3K27me3, BMI1, MEL18, EZH2 and YY1 proteins on chromosomes 8, 11,12 of cultured human NTERA-2 cl.D1 cells by hybridization of ChIP products with tiling microarrays. genomic distributions of H3K27me3, BMI1, MEL18, EZH2 and YY1 proteins on chromosomes 8, 11,12 of cultured human NTERA-2 cl.D1 cells by hybridization of ChIP products with tiling microarrays.

2014-06-07 | E-GEOD-41853 | biostudies-arrayexpress

Protein interactions within PLEIOHOMEOTIC-repressive complex are critical for its recruitment to Polycomb target genes (Fruit Fly)

Project description:PcG proteins are critical epigenetic regulators of development. Here we have determined genomic distributions of PHO, PHOL and SFMBT proteins in cultured Drosophila cells by hybridization of ChIP products with tiling microarrays. genomic distributions of PHO, PHOL and SFMBT proteins in cultured Drosophila cells by hybridization of ChIP products with tiling microarrays.

2014-06-07 | E-GEOD-41852 | biostudies-arrayexpress

Distribution of H3K27me2, dUTX, and histone H3 in Sg4 cells

2015-05-14 | E-GEOD-61261 | biostudies-arrayexpress

Distribution of H3K27me3, H3K27ac, and H3K4me1 in E(z) temperature sensitive cells

Project description:PcG protein complex PRC2 is a methyltransferase specific for histone H3 lysine27, and H3K27me3 is essential for stable transcription silencing. Here we have determined genomic distributions of H3K27me3, H3K27ac, and H3K4me1 in cultured Drosophila E(z) temperature sensitive cells at 25°C and 31°C where E(z) is largely inactivated by hybridization of ChIP products with tiling microarrays. Genomic distributions of H3K27me3, H3K27ac, and H3K4me1 in cultured Drosophila E(z) temperature sensitive cells (EZ2-2) at 25°C and 31°C where E(z) is largely inactivated by hybridization of ChIP products with tiling microarrays

2015-05-14 | E-GEOD-61262 | biostudies-arrayexpress

Genome-wide analysis of histone marks in E(z) temperature sensitive cells [ChIP-seq]

Project description:PcG protein complex PRC2 is a methyltransferase specific for histone H3 lysine27, and H3K27me3 is essential for stable transcription silencing. Less well known but quantitatively much more important is the genome-wide role of PRC2 that dimethylates ~70% of total H3K27. Here we show that H3K27me2 occurs in inverse proportion to transcriptional activity in genes and intergenic regions and its loss results in global transcriptional derepression proportionally greatest in previously silent or weakly transcribed regions. H3K27me2 levels are controlled by opposing roaming activities of PRC2 and the H3K27 demethylase dUTX. Unexpectedly, we find an equally pervasive distribution of histone H2A ubiquitylated at lysine 118 (H2AK118ub), attributed to the RING1 subunit of PRC1-type complexes. Examination of global changes in five epigenetic marks when E(z) is inactivated in E(z) temperature-sensitive cells at 25°C and 31°C.

2015-05-14 | E-GEOD-64219 | biostudies-arrayexpress

Genome-wide analysis of epigenetic marks in E(z) temperature sensitive cells [ChIP-seq]

2015-05-14 | E-GEOD-61308 | biostudies-arrayexpress

Budding yeast Wapl controls sister chromatid cohesion maintenance and the chromosome condensation status

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2012-11-22 | E-GEOD-42460 | biostudies-arrayexpress

Budding yeast Wapl controls sister chromatid cohesion maintenance and the chromosome condensation status [BrdU-ChIP].

Project description:Cohesin acetylation by Eco1 during DNA replication establishes sister chromatid cohesion. We show that acetylation makes cohesin resistant to Wapl activity from S-phase until mitosis. Wapl turns out to be a key regulator of cohesin dynamics on chromosomes by controling cohesin maintenance following its establishment in S-phase and its role in chromosome condensation. The Affymetrix Saccharomyces cerevisiae Chip Tiling 1.0F Arrays were used to analyze the incorporation of BrdU in Saccharomyces cerevisiae in S-phase arrested cells.

2012-11-22 | E-GEOD-42456 | biostudies-arrayexpress

Budding yeast Wapl controls sister chromatid cohesion maintenance and the chromosome condensation status [PK-ChIP]

Project description:Cohesin acetylation by Eco1 during DNA replication establishes sister chromatid cohesion. We show that acetylation makes cohesin resistant to Wapl activity from S-phase until mitosis. Wapl turns out to be a key regulator of cohesin dynamics on chromosomes by controling cohesin maintenance following its establishment in S-phase and its role in chromosome condensation. The Affymetrix Saccharomyces cerevisiae Chip Tiling 1.0R Arrays were used to analyze the binding pattern of Scc1 along the genome of Saccharomyces cerevisiae in late G1 and metaphase arrested cells.

2012-11-22 | E-GEOD-42457 | biostudies-arrayexpress

Budding yeast Wapl controls sister chromatid cohesion maintenance and the chromosome condensation status [expression]

Project description:Cohesin acetylation by Eco1 during DNA replication establishes sister chromatid cohesion. We show that acetylation makes cohesin resistant to Wapl activity from S-phase until mitosis. Wapl turns out to be a key regulator of cohesin dynamics on chromosomes by controling cohesin maintenance following its establishment in S-phase and its role in chromosome condensation. The Affymetrix Yeast Genome 2.0 Arrays were used to analyze the expression profile of wt and waplM-bM-^HM-^F cells.

2012-11-22 | E-GEOD-42458 | biostudies-arrayexpress

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