Dnmt3a-dependent nonpromoter DNA methylation facilitates transcription of neurogenic genes.
Dnmt3a-dependent nonpromoter DNA methylation facilitates transcription of neurogenic genes.
复制标题
DOI:
10.1126/science.1190485
复制
发表时间:
2010-07-23
期刊:
影响因子:
--
通讯作者:
Sun YE
中科院分区:
文献类型:
--
作者:
Wu H;Coskun V;Tao J;Xie W;Ge W;Yoshikawa K;Li E;Zhang Y;Sun YE
DNA methylation at proximal promoters facilitates lineage restriction by silencing cell type–specific genes. However, euchromatic DNA methylation frequently occurs in regions outside promoters. The functions of such nonproximal promoter DNA methylation are unclear. Here we show that the de novo DNA methyltransferase Dnmt3a is expressed in postnatal neural stem cells (NSCs) and is required for neurogenesis. Genome-wide analysis of postnatal NSCs indicates that Dnmt3a occupies and methylates intergenic regions and gene bodies flanking proximal promoters of a large cohort of transcriptionally permissive genes, many of which encode regulators of neurogenesis. Surprisingly, Dnmt3a-dependent nonproximal promoter methylation promotes expression of these neurogenic genes by functionally antagonizing Polycomb repression. Thus, nonpromoter DNA methylation by Dnmt3a may be used for maintaining active chromatin states of genes critical for development.
登录
查看更多内容
影响因子:
64.8
作者:
Jepsen, Kristen;Solum, Derek;Rosenfeld, Michael G.
通讯作者:
Rosenfeld, Michael G.
影响因子:
64.5
作者:
Okano, M;Bell, DW;Li, E
通讯作者:
Li, E
影响因子:
64.8
作者:
Viré, E;Brenner, C;Fuks, F
通讯作者:
Fuks, F
影响因子:
56.9
作者:
Cao, R;Wang, LJ;Zhang, Y
通讯作者:
Zhang, Y
影响因子:
16.2
作者:
Waclaw, RR;Allen, ZJ;Campbell, K
通讯作者:
Campbell, K