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Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development

ABSTRACT: Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development

PROVIDER: PRJNA778217 | ENA |

REPOSITORIES: ENA

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Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [ChIP-seq]

Project description:Preimplantation development is critical for reproductive successes in mammals. Thus, it is important to understand how preimplantation embryogenesis is regulated. As a key event of preimplantation development, epigenetic reprogramming has been widely studied, yet how epigenetic complexes regulate preimplantation development remains largely unknown. Retinoblastoma binding protein 4 (RBBP4) and 7 (RBBP7) are integral components of epigenetic complexes including SIN3A, NuRD, and CoREST. Here, we demonstrate that double knockdown of Rbbp4 and 7, but not individually, causes embryonic lethality during the morula-to-blastocyst transition. Mechanistically, depletion of RBBP4 and 7 results in dysregulation of genes related to cell cycle, lineage development, and regulation of transcription, which is accompanied by cell cycle block, disrupted lineage specification and chromatin structure. Interestingly, RBBP4/7 depletion leads to a dramatic increase in H3.3 and H3K27ac abundance during morula-to-blastocyst transition. ChIP-seq analysis in early embryos and embryonic stem cells reveals enrichment of H3.3 at the promoter regions of RBBP4/7 target genes. In summary, our studies demonstrate the compensatory role of RBBP4/7 and reveal its potential mechanisms in preimplantation development.

2021-11-07 | GSE188297 | GEO

Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [RNA-seq]

2021-11-07 | GSE188296 | GEO

Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [ChIP-seq]

Project description:Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [ChIP-seq]

| PRJNA778218 | ENA

Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [RNA-seq]

Project description:Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development [RNA-seq]

| PRJNA778219 | ENA

Histone chaperone ASF1 mediates H3.3-H4 deposition in Arabidopsis

Project description:Histone chaperones and chromatin remodelers control nucleosome dynamics, essential for transcription, replication, and DNA repair. The histone chaperone Anti-Silencing Factor 1 (ASF1) plays a central role in facilitating CAF-1-mediated replication-dependent H3.1 deposition and HIRA-mediated replication-independent H3.3 deposition in yeast and metazoans. Whether ASF1 function is evolutionarily conserved in plants is unknown. Here, we show that Arabidopsis ASF1 proteins display an exclusive preference for the H3.3-depositing HIRA complex. Simultaneous mutation of both Arabidopsis ASF1 genes caused a decrease in chromatin density and ectopic H3.1 occupancy at loci typically enriched with H3.3. Genetic, transcriptomic, and proteomic data indicate that ASF1 proteins strongly prefer the HIRA complex over CAF-1. asf1 mutants also displayed an increase in spurious Pol II transcriptional initiation, and showed defects in the maintenance of gene body CG DNA methylation and in the distribution of histone modifications. Furthermore, ectopic targeting of ASF1 caused excessive histone deposition, less accessible chromatin, and gene silencing. These findings reveal the importance of ASF1-mediated H3.3-H4 deposition via the HIRA pathway for proper epigenetic regulation of the genome.

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Dynamic Deposition of the Histone H3.3 Variant Accompanies Developmental Remodeling of Arabidopsis Transcriptome

Project description:This SuperSeries is composed of the following subset Series: GSE36626: Dynamic Deposition of the Histone H3.3 Variant Accompanies Developmental Remodeling of Arabidopsis Transcriptome (mRNA-Seq) GSE36629: Dynamic Deposition of the Histone H3.3 Variant Accompanies Developmental Remodeling of Arabidopsis Transcriptome (ChIP-Seq) Refer to individual Series

2012-05-15 | E-GEOD-36631 | biostudies-arrayexpress

Factors influencing in vivo deposition of histone variants H3.1 and H3.3

Project description:Establishment of a proper chromatin landscape is central to genome function. Here, we explain H3 variant distribution by specific targeting and dynamics of deposition involving the CAF-1 and HIRA histone chaperones. Impairing replicative H3.1 incorporation via CAF-1 enables an alternative H3.3 deposition at replication sites via HIRA. Conversely, the H3.3 incorporation throughout the cell cycle via HIRA cannot be replaced by H3.1. ChIP-seq analyses reveal correlation between HIRA-dependent H3.3 accumulation and RNA pol II at transcription sites and specific regulatory elements, further supported by their biochemical association. Remarkably, the HIRA complex shows unique DNA binding properties and depleting HIRA increases DNA sensitivity to nucleases. We propose that protective gap-filling of naked DNA by HIRA leads to a broad distribution of H3.3, and HIRA association with Pol II ensures local H3.3 enrichment at specific sites. Examination of genome-wide localization of two histone H3 variants.

2011-12-16 | E-GEOD-31794 | biostudies-arrayexpress

H3.3 deposition at endogenous retroviruses in embryonic stem cells

Project description:We report DAXX-dependent deposition of histone H3.3 at at endogenous retroviruses in embryonic stem cells.

2015-07-16 | GSE70966 | GEO

Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development

Project description:This SuperSeries is composed of the SubSeries listed below.

2021-11-07 | GSE188298 | GEO

De novo deposition of the histone H3 variants H3.1 and H3.3 during DNA replication

Project description:We developed a new sequencing assay to track the de novo deposition of the histone H3 variants H3.1 and H3.3 during S phase. We use cells stably expressing H3.1-SNAP or H3.3-SNAP, and synchronize them in G1/S by double-thymidine block. The SNAP-tag enables to discriminate newly synthesized histones from preexisting ones, via a quench-chase-capture strategy. We applied this strategy to isolate new H3.1 and H3.3 after releasing cells into S phase, and probed their distribution by MNase digestion and sequencing. We could thus characterize H3.1 and H3.3 dynamics from early to mid S phase at genome-wide resolution. We further applied our method to investigate the consequences of perturbations upon deletion of the H3.3 chaperone HIRA. We used HIRA knockout and control cells, and compared H3.1 and H3.3 distribution to early replication patterns by EdU labeling and sequencing of nascent DNA.

2022-03-31 | E-MTAB-10619 | biostudies-arrayexpress

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