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The plant POLYMERASE-ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome wide [ChIP-seq]

ABSTRACT: The plant POLYMERASE-ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome wide [ChIP-seq]

PROVIDER: PRJNA1025000 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26313800.fastq.gz	Fastqsanger.gz
	SRR26313801.fastq.gz	Fastqsanger.gz
	SRR26313802.fastq.gz	Fastqsanger.gz
	SRR26313803.fastq.gz	Fastqsanger.gz
	SRR26313804.fastq.gz	Fastqsanger.gz

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The plant POLYMERASE-ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome wide

Project description:The plant POLYMERASE-ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome wide

| PRJNA1025001 | ENA

The plant POLYMERASE ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome-wide [RNA-seq]

Project description:The plant POLYMERASE ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome-wide [RNA-seq]

| PRJNA1025003 | ENA

The plant POLYMERASE-ASSOCIATED FACTOR1 complex links transcription and H2B monoubiquitination genome wide [ChIP-seq]

Project description:We have determined the distribution of two subunits of Paf1C, namely ELF7 and VIP3. We have investigated the contribution of the Paf1 complex to the monoubiquitination of H2B genome-wide by ChIP-seq. Finally, we have investigated the effect of defective Paf1C on the distribution of total RNAPII.

2024-03-07 | GSE244846 | GEO

GlcNAcylation of histone H2B facilitates its monoubiquitination

Project description:This SuperSeries is composed of the following subset Series: GSE33049: GlcNAcylation of histone H2B facilitates its monoubiquitination [Illumina Genome Analyzer data] GSE33050: GlcNAcylation of histone H2B facilitates its monoubiquitination [Affymetrix data] Refer to individual Series

2011-10-26 | E-GEOD-33051 | biostudies-arrayexpress

GlcNAcylation of histone H2B facilitates its monoubiquitination [Illumina Genome Analyzer data]

Project description:We report that histone GlcNAcylation of H2B S112 is a vital histone modification which facilitates histone monoubiquitination (ub). In a genome-wide analysis, H2B S112 GlcNAcylation sites were observed widely distributed over entire chromosomes including transcribed gene loci, together with co-localization of H2B S112 GlcNAcylation and K120 ub. Examination of H2B S112 GlcNAc and H2B K120 ub in HeLa S3 cells

2011-10-27 | E-GEOD-33049 | biostudies-arrayexpress

GlcNAcylation of histone H2B facilitates its monoubiquitination [Illumina Genome Analyzer data]

2011-10-27 | GSE33049 | GEO

Centromeric H2B monoubiquitination promotes noncoding transcription and chromatin integrity

Project description:Functional centromeres are essential for proper cell division. Centromeres are established largely by epigenetic processes resulting in incorporation of the histone H3 variant CENP-A. Here, we demonstrate the direct involvement of H2B monoubiquitination, mediated by RNF20 in humans or Brl1 in Schizosaccharomyces pombe, in centromeric chromatin maintenance. Monoubiquinated H2B (H2Bub1) is needed for this maintenance, promoting noncoding transcription, centromere integrity and accurate chromosomal segregation. A transient pulse of centromeric H2Bub1 leads to RNA polymerase II–mediated transcription of the centromere’s central domain, coupled to decreased H3 stability. H2Bub1-deficient cells have centromere cores that, despite their intact centromeric heterochromatin barriers, exhibit characteristics of heterochromatin, such as silencing histone modifications, reduced nucleosome turnover and reduced levels of transcription. In the H2Bub1-deficient cells, centromere functionality is hampered, thus resulting in unequal chromosome segregation. Therefore, centromeric H2Bub1 is essential for maintaining active centromeric chromatin.

2014-01-29 | GSE49874 | GEO

Co-dependency of H2B monoubiquitination and nucleosome re-assembly on Chd1

Project description:Monoubiquitination of histone H2B on lysine 123 (H2BK123ub) is a transient histone modification considered to be essential for establishing H3K4 and H3K79 trimethylation by Set1/COMPASS and Dot1, respectively. Many of the factors such as Rad6/Bre1, the Paf1 complex, and the Bur1/Bur2 complex were identified to be required for proper histone H3K4 and H3K79 trimethylation, and were shown to function by regulating H2BK123ub levels. Here, we have identified Chd1 as a factor that is required for proper maintenance of H2B monoubiquitination levels, but not for H3K4 and H3K79 trimethylation. Loss of Chd1 results in a substantial loss of H2BK123ub levels with little to no effect on the genome-wide pattern of H3K4 and H3K79 trimethylation. Our data shows that nucleosomal occupancy is reduced in gene bodies in both CHD1 null and K123A backgrounds. We have also demonstrated that Chd1’s function in maintaining H2BK123ub levels is conserved from yeast to human. Our study provides evidence that only small levels of H2BK123ub are necessary for full levels of H3K4 and H3K79 trimethylation in vivo, and points to a role for Chd1 in positively regulating gene expression through promoting nucleosome re-assembly coupled with H2B monoubiquitination. Examination of two histone modifications in wild-type and Chd1 null yeast strains using ChIP-seq. Expression profiling in wild-type and Chd1 null yeast strains using RNA-seq.

2012-05-01 | E-GEOD-36334 | biostudies-arrayexpress

Co-dependency of H2B monoubiquitination and nucleosome re-assembly on Chd1

2012-05-02 | GSE36334 | GEO

The Histone H2B Monoubiquitination Regulatory Pathway is Required for Differentiation of Multipotent Stem Cells

Project description:Extensive changes in post-translational histone modifications accompany the rewiring of the transcriptional program during stem cell differentiation. However, the mechanisms controlling the changes in specific chromatin modifications and their function during differentiation remain only poorly understood. We show that histone H2B monoubiquitination (H2Bub1) significantly increases during differentiation of human mesenchymal stem cells (hMSCs), various lineage-committed precursor cells and in diverse organisms. Furthermore, the H2B ubiquitin ligase RNF40 is required for the induction of differentiation markers and transcriptional reprogramming of hMSC. This function is dependent upon CDK9 and the WAC adaptor protein, which are required for H2B monoubiquitination. Finally, we show that RNF40 is required for the resolution of the H3K4me3/H3K27me3 bivalent poised state on lineage-specific genes during the transition from an inactive to active chromatin conformation. Thus, these data indicate that H2Bub1 is required for maintaining multipotency of hMSC cells and plays a central role in controlling stem cell differentiation.

2013-01-03 | GSE38173 | GEO

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