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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ChIP-Seq]

ABSTRACT: Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ChIP-Seq]

PROVIDER: PRJNA748364 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15197905_1.fastq.gz	Fastqsanger.gz
	SRR15197905_2.fastq.gz	Fastqsanger.gz
	SRR15197906_1.fastq.gz	Fastqsanger.gz
	SRR15197906_2.fastq.gz	Fastqsanger.gz
	SRR15197907_1.fastq.gz	Fastqsanger.gz

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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation

Project description:Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation

| PRJNA748361 | ENA

Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [RNA-Seq]

Project description:Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [RNA-Seq]

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Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ATAC-Seq]

Project description:Oncohistone mutations occur at functional sites of regulatory ADP-ribosylation: the role of oncohistone mutations in transcriptional regulation [ATAC-Seq]

| PRJNA748363 | ENA

Genome-wide analysis of ADP-ribosylation by ADPr-ChAP reveals its association with chromatin after oxidative stress

Project description:Chromatin ADP-ribosylation regulates important cellular processes. However, the exact location and magnitude of chromatin ADP-ribosylation are largely unknown. A robust and versatile method for assessing chromatin ADP-ribosylation is therefore crucial for further understanding its function. Here, we present a chromatin affinity precipitation method based on the high specificity and avidity of two well-characterized ADP-ribose binding domains to map chromatin ADP-ribosylation at the genome-wide scale and at specific loci. Our ADPr-ChAP method revealed that in cells exposed to oxidative stress, ADP-ribosylation of chromatin scaled with histone density, with highest levels at heterochromatic sites and depletion at active promoters. Furthermore, in growth factor-induced adipocyte differentiation, increased chromatin ADP-ribosylation was observed at PPARγ target genes, whose expression is ADP-ribosylation-dependent. In combination with deep-sequencing and conventional ChIP, the established ADPr-ChAP provides a valuable resource for the bioinformatic comparison of ADP-ribosylation with other chromatin modifications and for addressing its role in other biologically important processes.

2016-02-04 | GSE69885 | GEO

ADP-ribosylation of STAT1α by PARP-1 is Required for IFNγ-stimulated Transcriptional Responses in Macrophages [iBMDM_Stat1_mutant_RNAseq]

Project description:A key determinant of the pro-inflammatory responses in macrophages is the Signal Transducers and Activators of Transcription (STAT) family member, STAT1α. STAT1α activation by interferon-gamma (IFNγ) leads to induction of a transcriptional program that is coordinated in a large part by post-translational modifications such as phosphorylation. Poly(ADP-ribose) Polymerases (PARPs), which include PARP-1, catalyze the addition of ADP-ribose moieties (ADP-ribosylation) to target proteins and modulate their function. We found that PARP-1 mediates IFNγ-stimulated transcription by regulating genome-wide binding of STAT1α and its IFNγ-dependent phosphorylation. We identified STAT1α as a target of PARP-1 and found sites of ADP-ribosylation on its DNA-binding (DBD) and Transcription Activation (TA) domains. Surprisingly, ADP-ribosylation on the DBD and TA domains had distinct functional consequences on STAT1α transcriptional activity. Moreover, loss of ADP-ribosylation on either site led to diminished pro-inflammatory responses. These results suggest that PARP-1-driven ADP-ribosylation of STAT1α is a critical mediator of inflammation in macrophages.

2021-05-13 | GSE147959 | GEO

Functional Interplay between Histone H2B ADP-Ribosylation and Phosphorylation Controls Adipogenesis

Project description:Although ADP-ribosylation of histones by PARP-1 has been linked to genotoxic stress responses, its role in physiological processes has remained elusive. We found that ADPribosylation of histone H2B-Glu35 inhibits the differentiation of adipocyte precursors, leading to a reduction of newly formed adipocytes in white adipose tissue. ADP-ribosylation of Glu35 by PARP-1 inhibits phosphorylation of adjacent H2B-Ser36, which is required for the proadipogenic gene expression program. It also inhibits adipogenesis in cultured cells and a mouse lineage tracing genetic model. The activity of PARP-1 on H2B requires NMNAT-1, a nuclear NAD+ synthase, which serves as a specificity factor to direct PARP-1 catalytic activity to Glu and Asp residues. Collectively, our results demonstrate a functional interplay between H2B-Glu35 ADP-ribosylation and H2B-Ser36 phosphorylation that controls adipogenesis and cancer cell proliferation.

2020-08-13 | GSE136055 | GEO

ADP-ribosylation of STAT1α by PARP-1 is Required for IFNγ-stimulated Transcriptional Responses in Macrophages [H3K27ac_ChIP-Seq_BMDM]

2021-05-13 | GSE147952 | GEO

ADP-ribosylation of STAT1α by PARP-1 is Required for IFNγ-stimulated Transcriptional Responses in Macrophages [STAT1_ChIP-Seq_BMDM]

2021-05-13 | GSE147951 | GEO

ADP-ribosylation of STAT1α by PARP-1 is Required for IFNγ-stimulated Transcriptional Responses in Macrophages [BMDM_RNA-Seq_PJ34]

2021-05-13 | GSE147955 | GEO

ADP-ribosylation of H3K27acα by PARP-1 is Required for IFNγ-stimulated Transcriptional Responses in Macrophages [H3K27ac_ChIP-Seq_mutants_iBMDM]

Project description:A key determinant of the pro-inflammatory responses in macrophages is the Signal Transducers and Activators of Transcription (STAT) family member, H3K27acα. H3K27acα activation by interferon-gamma (IFNγ) leads to induction of a transcriptional program that is coordinated in a large part by post-translational modifications such as phosphorylation. Poly(ADP-ribose) Polymerases (PARPs), which include PARP-1, catalyze the addition of ADP-ribose moieties (ADP-ribosylation) to target proteins and modulate their function. We found that PARP-1 mediates IFNγ-stimulated transcription by regulating genome-wide binding of H3K27acα and its IFNγ-dependent phosphorylation. We identified H3K27acα as a target of PARP-1 and found sites of ADP-ribosylation on its DNA-binding (DBD) and Transcription Activation (TA) domains. Surprisingly, ADP-ribosylation on the DBD and TA domains had distinct functional consequences on H3K27acα transcriptional activity. Moreover, loss of ADP-ribosylation on either site led to diminished pro-inflammatory responses. These results suggest that PARP-1-driven ADP-ribosylation of H3K27acα is a critical mediator of inflammation in macrophages.

2021-05-13 | GSE147954 | GEO

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