Distribution, recognition and regulation of non-CpG methylation in the adult mammalian brain.
Distribution, recognition and regulation of non-CpG methylation in the adult mammalian brain.
复制标题
DOI:
10.1038/nn.3607
复制
发表时间:
2014-02
影响因子:
25
通讯作者:
Song, Hongjun
中科院分区:
文献类型:
--
作者:
Guo, Junjie U.;Su, Yijing;Shin, Joo Heon;Shin, Jaehoon;Li, Hongda;Xie, Bin;Zhong, Chun;Hu, Shaohui;Le, Thuc;Fan, Guoping;Zhu, Heng;Chang, Qiang;Gao, Yuan;Ming, Guo-li;Song, Hongjun
DNA methylation plays critical roles in the nervous system and has been traditionally considered to be restricted to CpG dinucleotides in metazoan genomes. Here we show that the single-base resolution DNA methylome from adult mouse dentate neurons consists of both CpG (~75%) and CpH (~25%) methylation (H = A/C/T). Neuronal CpH methylation is conserved in human brains, enriched in low CpG-density regions, depleted at protein-DNA interaction sites, and anti-correlated with gene expression. Functionally, both mCpGs and mCpHs can repress transcription in vitro and are recognized by MeCP2 in neurons in vivo. Unlike most CpG methylation, CpH methylation is established de novo during neuronal maturation and requires DNMT3A for active maintenance in post-mitotic neurons. These characteristics of CpH methylation suggest a significantly expanded proportion of the neuronal genome under cytosine methylation regulation and provide a new foundation for understanding the role of this key epigenetic modification in the nervous system.
登录
查看更多内容
影响因子:
25
作者:
Feng, Jian;Zhou, Yu;Campbell, Susan L.;Le, Thuc;Li, En;Sweatt, J. David;Silva, Alcino J.;Fan, Guoping
通讯作者:
Fan, Guoping
影响因子:
64.5
作者:
Guo JU;Su Y;Zhong C;Ming GL;Song H
通讯作者:
Song H
DOI:
10.1038/nrg2719
发表时间:
2010-03
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
64.8
作者:
Barreto, Guillermo;Schaefer, Andrea;Niehrs, Christof
通讯作者:
Niehrs, Christof
影响因子:
64.8
作者:
通讯作者:
--