Polycomb Gene Silencing Mechanisms: PRC2 Chromatin Targeting, H3K27me3 'Readout', and Phase Separation-Based Compaction.
Polycomb Gene Silencing Mechanisms: PRC2 Chromatin Targeting, H3K27me3 'Readout', and Phase Separation-Based Compaction.
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多梳基因沉默机制:PRC2染色质靶向,H3K27me3‘读出’,和基于相分离的紧凑。
DOI:
10.1016/j.tig.2020.12.006
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发表时间:
2021-06
期刊:
影响因子:
--
通讯作者:
Wang GG
中科院分区:
文献类型:
--
作者:
Guo Y;Zhao S;Wang GG
Modulation of chromatin structure and/or modification by Polycomb repressive complexes (PRCs) provides an important means to partition the genome into functionally distinct subdomains and to regulate the activity of the underlying genes. Both the enzymatic activity of PRC2 and its chromatin recruitment, spreading, and eviction are exquisitely regulated via interactions with cofactors and DNA elements (such as unmethylated CpG islands), histones, RNA (nascent mRNA and long noncoding RNA), and R-loops. PRC2-catalyzed histone H3 lysine 27 trimethylation (H3K27me3) is recognized by distinct classes of effectors such as canonical PRC1 and BAH module-containing proteins (notably BAHCC1 in human). These effectors mediate gene silencing by different mechanisms including phase separation-related chromatin compaction and histone deacetylation. We discuss recent advances in understanding the structural architecture of PRC2, the regulation of its activity and chromatin recruitment, and the molecular mechanisms underlying Polycomb-mediated gene silencing. Because PRC deregulation is intimately associated with the development of diseases, a better appreciation of Polycomb-based (epi)genomic regulation will have far-reaching implications in biology and medicine.
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影响因子:
16
作者:
Chen S;Jiao L;Shubbar M;Yang X;Liu X
通讯作者:
Liu X
影响因子:
10.5
作者:
Alabert C;Barth TK;Reverón-Gómez N;Sidoli S;Schmidt A;Jensen ON;Imhof A;Groth A
通讯作者:
Groth A
DOI:
10.1098/rstb.2017.0021
发表时间:
2017-11-05
期刊:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子:
--
作者:
Brockdorff N
通讯作者:
Brockdorff N
影响因子:
16.6
作者:
Cheutin T;Cavalli G
通讯作者:
Cavalli G
影响因子:
6.4
作者:
Dewaele, Barbara;Przybyl, Joanna;Debiec-Rychter, Maria
通讯作者:
Debiec-Rychter, Maria