ArticleCell proliferation2023
PR-DUB safeguards Polycomb repression through H2AK119ub1 restriction.
Article in Cell proliferation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- BAP1 and UTX are dispensable for transcription-driven Polycomb erasure but essential for enhancer establishment.The Journal of biological chemistry · 2026Article
- Polycomb repressive-deubiquitinase complex safeguards oocyte epigenome and female fertility by restraining Polycomb activity.Nature communications · 2026Article
- Chromatin regulatorsChinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2026Article
- RING1B-BMI1 catalyzed dynamic H2AK119ub1 modification in response to sonic hedgehog signalling during pancreatic differentiation of human embryonic stem cells.Scientific reports · 2025Article
- Epigenetic regulation of CD8Frontiers in immunology · 2025Review
- Histone H2A deubiquitinase BAP1 is essential for endothelial cell differentiation from human pluripotent stem cells.In vitro cellular & developmental biology. Animal · 2024Article
- Human ASXL1-Mutant Hematopoiesis Is Driven by a Truncated Protein Associated with Aberrant Deubiquitination of H2AK119.Blood cancer discovery · 2024Article
- PR-DUB safeguards Polycomb repression through H2AK119ub1 restriction.Cell proliferation · 2023Article
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Authors and funding
11 authors.
Funding
Abstract
Polycomb group (PcG) proteins are critical chromatin regulators for cell fate control. The mono-ubiquitylation on histone H2AK119 (H2AK119ub1) is one of the well-recognized mechanisms for Polycomb repressive complex 1 (PRC1)-mediated transcription repression. Unexpectedly, the specific H2AK119 deubiquitylation complex composed by additional sex comb-like proteins and BAP1 has also been genetically characterized as Polycomb repressive deubiquitnase (PR-DUB) for unclear reasons. However, it remains a mystery whether and how PR-DUB deficiency affects chromatin states and cell fates through impaired PcG silencing. Here through a careful epigenomic analysis, we demonstrate that a bulk of H2AK119ub1 is diffusely distributed away from promoter regions and their enrichment is positively correlated with PRC1 occupancy. Upon deletion of Asxl2 in mouse embryonic stem cells (ESCs), a pervasive gain of H2AK119ub1 is coincident with increased PRC1 sampling at chromatin. Accordingly, PRC1 is significantly lost from a subset of highly occupied promoters, leading to impaired silencing of associated genes before and after lineage differentiation of Asxl2-null ESCs. Therefore, our study highlights the importance of genome-wide H2AK119ub1 restriction by PR-DUB in safeguarding robust PRC1 deposition and its roles in developmental regulation.
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