Expression data from G9a knockdown ovarian cancer cell
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: kuo-tai hua
PROVIDER: E-GEOD-41226 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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2011-12-31 | E-GEOD-22810 | biostudies-arrayexpress
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2014-01-08 | E-GEOD-53894 | biostudies-arrayexpress
Project description:PPARγ promotes adipogenesis while Wnt proteins inhibit adipogenesis. However, the mechanisms that control expression of these positive and negative master regulators of adipogenesis remain incompletely understood. By genome-wide histone methylation profiling in preadipocytes, we find that among gene loci encoding adipogenesis regulators, histone methyltransferase (HMT) G9a-mediated repressive epigenetic mark H3K9me2 is enriched on the entire PPARγ locus. H3K9me2 and G9a levels decrease during adipogenesis, which correlates inversely with induction of PPARγ. Removal of H3K9me2 by G9a deletion enhances chromatin opening and binding of adipogenic transcription factor C/EBP-beta to PPARγ promoter, which promotes PPARγ expression. Interestingly, G9a represses PPARγ expression in an HMT activity-dependent manner but facilitates Wnt10a expression independent of its enzymatic activity. Consistently, deletion of G9a or inhibiting G9a HMT activity promotes adipogenesis. Finally, deletion of G9a in mouse adipose tissues increases adipogenic gene expression and tissue weight. Thus, by inhibiting PPARγ expression and facilitating Wnt10a expression, G9a represses adipogenesis. Examination of gene expression changes in G9a KO brown preadipocytes
2013-02-01 | E-GEOD-41456 | biostudies-arrayexpress
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2014-01-03 | E-GEOD-46544 | biostudies-arrayexpress
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2008-06-15 | E-GEOD-8011 | biostudies-arrayexpress
Project description:modENCODE_submission_5611 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of the major histone modifications across the Drosophila melanogaster genome. The modifications under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-chip. BIOLOGICAL SOURCE: Strain: G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Developmental Stage: 3rd Instar Larvae; Genotype: G9a[RG5]/G9a[RG5]; Transgene: n/a; NUMBER OF REPLICATES: 4; EXPERIMENTAL FACTORS: Strain G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Antibody H3K9me3 abcam (target is H3K9me3); Developmental Stage 3rd Instar Larvae
2013-03-13 | E-GEOD-45102 | biostudies-arrayexpress
Project description:modENCODE_submission_5615 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of the major histone modifications across the Drosophila melanogaster genome. The modifications under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-chip. BIOLOGICAL SOURCE: Strain: G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Developmental Stage: 3rd Instar Larvae; Genotype: G9a[RG5]/G9a[RG5]; Transgene: n/a; NUMBER OF REPLICATES: 4; EXPERIMENTAL FACTORS: Strain G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Antibody H3K36me3 abcam (target is H3K36me3); Developmental Stage 3rd Instar Larvae
2013-03-06 | E-GEOD-44894 | biostudies-arrayexpress
Project description:modENCODE_submission_5572 This submission comes from a modENCODE project of Gary Karpen. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We aim to determine the locations of the major histone modifications across the Drosophila melanogaster genome. The modifications under study are involved in basic chromosomal functions such as DNA replication, gene expression, gene silencing, and inheritance. We will perform Chromatin ImmunoPrecipitation (ChIP) using genomic tiling arrays. We will initially assay localizations using chromatin from three cell lines and two embryonic stages, and will then extend the analysis of a subset of proteins to four additional animal tissues/stages. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-chip. BIOLOGICAL SOURCE: Strain: G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Developmental Stage: 3rd Instar Larvae; Genotype: G9a[RG5]/G9a[RG5]; Transgene: n/a; NUMBER OF REPLICATES: 4; EXPERIMENTAL FACTORS: Strain G9a mutant (official name : G9a mutant genotype : G9a[RG5]/G9a[RG5] outcross : 3 transgene : n/a tags : homologous recombination tag : none description : Mutation generated by end-out homologous recombination at the G9a locus. The entire open reading frame of G9a has been removed. Antibody HP1 wa191 (target is HP1a); Developmental Stage 3rd Instar Larvae
2013-03-06 | E-GEOD-44885 | biostudies-arrayexpress