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Genome-wide mapping of H3K9me2 in DOT1L-deficient worms.

ABSTRACT: Genome-wide mapping of H3K9me2 in DOT1L-deficient worms.

PROVIDER: PRJNA475460 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7287350.fastq.gz	Fastqsanger.gz
	SRR7287351.fastq.gz	Fastqsanger.gz
	SRR7287352.fastq.gz	Fastqsanger.gz
	SRR7287353.fastq.gz	Fastqsanger.gz
	SRR7287354.fastq.gz	Fastqsanger.gz

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Genome-wide mapping of H3K9me2 in DOT1L-deficient worms.

Project description:Histone modification marks such as H3K4me1 and H3K27ac have been used to map putative enhancers, but these marks represent only a fraction of the full repertoire of histone modifications decorating these regulatory regions. In mammals, methylation of histone H3 on lysine 79 (H3K79me), deposited by the methyltransferase DOT1L, is present at enhancers. In C. elegans, putative enhancers have been predicted based on chromatin modifications and regions of chromatin accessibility. Our own overlap analysis has revealed that both DOT-1.1, the C. elegans DOT1L homologue, and its major interacting partner, the chromatin-binding factor ZFP-1 (AF10 in mammals), are enriched at both distal and intragenic enhancers. Previous work has shown that Dot1 proteins prevent encroachment of heterochromatin to actively transcribed regions in yeast and in MLL-rearranged leukemias. Here we find that, in C. elegans, loss of DOT-1.1 is accompanied by ectopic H3K9me2, a hallmark of heterochromatin, at distal and intragenic enhancers. This observation suggests a new role for DOT1L in the control of heterochromatin formation at enhancers, which may partake on the control of developmentally regulated genes.

2024-06-07 | GSE115551 | GEO

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Genome-wide mapping of the heterochromatin mark H3K9me2 in loss-of-function mutant worms

Project description:Genome-wide mapping of the heterochromatin mark H3K9me2 in loss-of-function mutant worms

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RNA-sequencing of Dot1L-deficient B cell subsets

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h3k9me2-Establishing a reference epigenome in arabidopsis seedlings

Project description:gfe_epigenome - h3k9me2 - Epigenomic mapping - H3K9me2 ChIP-chip

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DOT1L Inhibits SIRT1 and SUV39H1-Mediated H3K9 Modification to Maintain Gene Expression (array)

Project description:Methylation of histone 3 on lysine 79 (H3K79) is broadly associated with active gene expression in eukaryotes, and the H3K79 methyltransferase DOT1L is indispensable for specific leukemia subtypes like those with MLL-translocations. We found that suppression of the histone deacetylase SIRT1 rescued MLL-AF9 leukemia cells from their dependence on DOT1L. We show that upon DOT1L inhibition, SIRT1 is required for the acquisition of a repressive chromatin state consistent with facultative heterochromatin around MLL-AF9 target genes in leukemia and other genes possess an H3K79me2(hi), H3K9ac(hi), H3K9me2(low) histone modification profile in normal hematopoietic stem and progenitor cells. Examination of gene expression dynamics with and without drug treatment and RNA interference.

2015-03-30 | E-GEOD-61013 | biostudies-arrayexpress

DOT1L Inhibits SIRT1 and SUV39H1-Mediated H3K9 Modification to Maintain Gene Expression (ATACseq)

Project description:Methylation of histone 3 on lysine 79 (H3K79) is broadly associated with active gene expression in eukaryotes, and the H3K79 methyltransferase DOT1L is indispensable for specific leukemia subtypes like those with MLL-translocations. We found that suppression of the histone deacetylase SIRT1 rescued MLL-AF9 leukemia cells from their dependence on DOT1L. We show that upon DOT1L inhibition, SIRT1 is required for the acquisition of a repressive chromatin state consistent with facultative heterochromatin around MLL-AF9 target genes in leukemia and other genes possess an H3K79me2(hi), H3K9ac(hi), H3K9me2(low) histone modification profile in normal hematopoietic stem and progenitor cells. Examination of histone modifications and a chromatin modifier with and without drug treatment and RNA interference.

2015-03-30 | E-GEOD-61016 | biostudies-arrayexpress

DOT1L Inhibits SIRT1 and SUV39H1-Mediated H3K9 Modification to Maintain Gene Expression (ChIPseq)

Project description:Methylation of histone 3 on lysine 79 (H3K79) is broadly associated with active gene expression in eukaryotes, and the H3K79 methyltransferase DOT1L is indispensable for specific leukemia subtypes like those with MLL-translocations. We found that suppression of the histone deacetylase SIRT1 rescued MLL-AF9 leukemia cells from their dependence on DOT1L. We show that upon DOT1L inhibition, SIRT1 is required for the acquisition of a repressive chromatin state consistent with facultative heterochromatin around MLL-AF9 target genes in leukemia and other genes possess an H3K79me2(hi), H3K9ac(hi), H3K9me2(low) histone modification profile in normal hematopoietic stem and progenitor cells. Examination of histone modifications and a chromatin modifier with and without drug treatment and RNA interference.

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Project description:gfe_epigenome - h3k9me2 - Epigenomic mapping - H3K9me2 ChIP-chip 2 dye-swap - chip-chip

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DOT1L Inhibits SIRT1 and SUV39H1-Mediated H3K9 Modification to Maintain Gene Expression [ChIP-seq 2]

Project description:Methylation of histone 3 on lysine 79 (H3K79) is broadly associated with active gene expression in eukaryotes, and the H3K79 methyltransferase DOT1L is indispensable for specific leukemia subtypes like those with MLL-translocations. We found that suppression of the histone deacetylase SIRT1 rescued MLL-AF9 leukemia cells from their dependence on DOT1L. We show that upon DOT1L inhibition, SIRT1 is required for the acquisition of a repressive chromatin state consistent with facultative heterochromatin around MLL-AF9 target genes in leukemia and other genes possess an H3K79me2(hi), H3K9ac(hi), H3K9me2(low) histone modification profile in normal hematopoietic stem and progenitor cells. Examination of histone modifications via ChIP-seq in three human cancer cell lines.

2015-03-30 | E-GEOD-62100 | biostudies-arrayexpress

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