Accurate H3K27 methylation can be established de novo by SUZ12-directed PRC2.
Accurate H3K27 methylation can be established de novo by SUZ12-directed PRC2.
复制标题
DOI:
10.1038/s41594-018-0036-6
复制
发表时间:
2018-03
影响因子:
16.8
通讯作者:
Helin K
中科院分区:
文献类型:
--
作者:
Højfeldt JW;Laugesen A;Willumsen BM;Damhofer H;Hedehus L;Tvardovskiy A;Mohammad F;Jensen ON;Helin K
The Polycomb repressive complex 2 (PRC2) catalyzes H3K27 methylation and is required for maintaining transcriptional patterns and cellular identity, but the specification and maintenance of genomic PRC2 binding and H3K27 methylation patterns remain incompletely understood. Epigenetic mechanisms have been proposed, wherein pre-existing H3K27 methylation directs recruitment and regulates the catalytic activity of PRC2 to support its own maintenance. Here we investigate if such mechanisms are required for specifying H3K27 methylation patterns in mouse embryonic stem cells (mESCs). Through re-expression of PRC2 subunits in genetic knockouts that have lost all H3K27 methylation, we demonstrate that methylation patterns can be accurately established de novo. We find that regional methylation kinetics correlate with original methylation patterns even in their absence, and specification of the genomic PRC2 binding pattern is retained and specifically dependent on the PRC2 core-subunit SUZ12. Thus, the H3K27 methylation patterns in mESCs are not dependent on self-autonomous epigenetic inheritance.
登录
查看更多内容
影响因子:
16.6
作者:
Justin N;Zhang Y;Tarricone C;Martin SR;Chen S;Underwood E;De Marco V;Haire LF;Walker PA;Reinberg D;Wilson JR;Gamblin SJ
通讯作者:
Gamblin SJ
DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
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
影响因子:
7
作者:
Jung, Hye Ryung;Pasini, Diego;Jensen, Ole N.
通讯作者:
Jensen, Ole N.