Article ; Online: Structural heterogeneity of the mammalian polycomb repressor complex in immune regulation.
Experimental & molecular medicine
2020 Volume 52, Issue 7, Page(s) 1004–1015
Abstract: Epigenetic regulation is mainly mediated by enzymes that can modify the structure of chromatin by altering the structure of DNA or histones. Proteins involved in epigenetic processes have been identified to study the detailed molecular mechanisms ... ...
Abstract | Epigenetic regulation is mainly mediated by enzymes that can modify the structure of chromatin by altering the structure of DNA or histones. Proteins involved in epigenetic processes have been identified to study the detailed molecular mechanisms involved in the regulation of specific mRNA expression. Evolutionarily well-conserved polycomb group (PcG) proteins can function as transcriptional repressors by the trimethylation of histone H3 at the lysine 27 residue (H3K27me3) and the monoubiquitination of histone H2A at the lysine 119 residue (H2AK119ub). PcG proteins form two functionally distinct protein complexes: polycomb repressor complex 1 (PRC1) and PRC2. In mammals, the structural heterogeneity of each PRC complex is dramatically increased by several paralogs of its subunit proteins. Genetic studies with transgenic mice along with RNA-seq and chromatin immunoprecipitation (ChIP)-seq analyses might be helpful for defining the cell-specific functions of paralogs of PcG proteins. Here, we summarize current knowledge about the immune regulatory role of PcG proteins related to the compositional diversity of each PRC complex and introduce therapeutic drugs that target PcG proteins in hematopoietic malignancy. |
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MeSH term(s) | Animals ; Clinical Trials as Topic ; Hematologic Neoplasms/pathology ; Hematopoietic Stem Cells/cytology ; Hematopoietic Stem Cells/metabolism ; Humans ; Immunity ; Mammals/immunology ; Polycomb Repressive Complex 1/antagonists & inhibitors ; Polycomb Repressive Complex 1/chemistry ; Polycomb Repressive Complex 1/metabolism |
Chemical Substances | Polycomb Repressive Complex 1 (EC 2.3.2.27) |
Language | English |
Publishing date | 2020-07-07 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
ZDB-ID | 1328915-9 |
ISSN | 2092-6413 ; 1226-3613 ; 0378-8512 |
ISSN (online) | 2092-6413 |
ISSN | 1226-3613 ; 0378-8512 |
DOI | 10.1038/s12276-020-0462-5 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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