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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [ATAC-seq]

ABSTRACT: ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [ATAC-seq]

PROVIDER: PRJNA1126652 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29487814_1.fastq.gz	Fastqsanger.gz
	SRR29487814_2.fastq.gz	Fastqsanger.gz
	SRR29487815_1.fastq.gz	Fastqsanger.gz
	SRR29487815_2.fastq.gz	Fastqsanger.gz
	SRR29487816_1.fastq.gz	Fastqsanger.gz

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

Project description:The Arabidopsis H3K4me3-binding ALFIN-like proteins are components of the PRC1 complex and promote H2A ubiquitination, thereby establishing a connection between H3K4me3 and H2A ubiquitination across the genome. Additionally, the ALFIN-like proteins interact with various chromatin-related proteins involved in H2A.Z deposition, H3K27me3 demethylation, histone deacetylation, and chromatin accessibility. The ALFIN-like proteins play a crucial role in coordinating H3K4me3 with diverse other chromatin modifications.

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [ATAC-seq]

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [RNA-seq]

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

Project description:ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

Project description:ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis

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ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [RNA-seq]

Project description:ALFIN-like proteins link histone H3K4me3 with H2A ubiquitination and coordinate diverse chromatin modifications in Arabidopsis [RNA-seq]

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Fbxl10 regulates PRC1 recruitment to CpG islands and H2A ubiquitination

Project description:Polycomb repressive complex 1 (PRC1) catalyzes H2A monoubiquitination (uH2A) and regulates pluripotency in embryonic stem cells (ESCs). However the mechanisms controlling PRC1 recruitment and activity are largely unknown. Here we show that Fbxl10 interacts with Ring1B and Nspc1, forming a non-canonical PRC1. We demonstrate that Fbxl10-PRC1 is essential for H2A ubiquitination in mouse ESCs. Genome-wide analyses reveal that Fbxl10 preferentially binds to CpG islands and co-localizes with Ring1B on Polycomb target genes. Notably, Fbxl10 depletion causes modest dissociation of Ring1B but a major loss of uH2A on target genes. Furthermore rescue experiments for Fbxl10 reveal that its DNA binding capability and integration into PRC1 are required for proper H2A ubiquitination. ES cells lacking Fbxl10, like previously characterized Polycomb mutants, show a severely compromised capacity for successful differentiation. Our results shed light on a novel mechanism how CpG islands regulate chromatin function by affecting polycomb recruitment and activity. All ChIP-seq reactions were performed in either untransfected cells, cells expressing scrambled shRNA or Fbxl10 shRNA, Ring1b-/- or Suz12-/- mouse ES cells

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PHF7 Links H3K4 Methylation to H2A Ubiquitination During Spermiongenesis

Project description:Histone ubiquitination has been suggested to serve as a “tag” for nucleosome removal during histone-to-protamine exchange that is essential for chromatin packaging in round spermatids. Here, we screen for putative E3 ligase and identify that the PHF7, containing both RING finger and PHD domains, is critical for H2A ubiquitination and histone removal. Mechanistically, its PHD domain as a histone code reader can specifically bind H3K4me3/me2 and its RING domain as a histone writer can ubiquinate H2A. So we want to use ChIP-seq to see whether all PHF7-binding peaks overlapped with those of H3K4me3. We report the application of ChIP-seq for high-throughput profiling of histone modifications in spermatids. By obtaining over 240M of sequences from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps and PHF7 binding position of late spermatids. We find binding peaks of PHF7, H3K4me3 and ub-H2A were mainly enriched at gene-regulatory elements (-5kb to +5kb from transcriptional start site), including promoter and enhancers, indicative of important roles in gene regulations. More than 96% (n=15419) of all PHF7-binding peaks overlapped with those of H3K4me3, supporting a specific binding of PHF7 to H3k4me3. Moreover, the common binding sites between PHF7 and H3K4me3 were associated with ub-H2A. Taken together, these results demonstrate that PHF7 ubiquitinate H2A through binding with H3K4me3.

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