Potential energy landscapes identify the information-theoretic nature of the epigenome.

Potential energy landscapes identify the information-theoretic nature of the epigenome.
复制标题

势能景观确定了表观基因组的信息理论性质。

DOI:
10.1038/ng.3811
复制
发表时间:
2017-05
期刊:
影响因子:
30.8
通讯作者:
Feinberg AP
Feinberg AP
中科院分区:
生物学1区
文献类型:
--
作者:
Jenkinson G;Pujadas E;Goutsias J;Feinberg AP

文献摘要

参考文献

被引文献

相似文献

表观遗传学研究携带与DNA序列无关的信息的基因组修饰,DNA序列可通过细胞分裂遗传。1940年,沃丁顿创造了“表观遗传景观”这一术语,用来比喻多能性和分化,但甲基化景观还没有被严格计算出来。利用统计物理和信息论的原理,我们从全基因组亚硫酸氢盐测序数据中得出表观遗传能量图景,使我们能够使用Shannon‘s熵来量化全基因组的甲基化随机性,并将熵与染色质结构相关联。此外,我们认为样本特定能量景观之间的Jensen-Shannon距离是表观遗传差异的一种度量,并展示了它在识别表观遗传差异方面的有效性。通过将甲基化维持视为一个通信系统,我们引入了甲基化通道,并表明可以根据它们的信息属性来预测高阶染色质组织。我们的结果提供了对表观基因组信息论性质的基本理解,从而为研究其在疾病和衰老中的作用提供了强有力的方法。
Epigenetics studies genomic modifications carrying information independent of DNA sequence heritable through cell division. In 1940, Waddington coined the term “epigenetic landscape” as a metaphor for pluripotency and differentiation, but methylation landscapes have not yet been rigorously computed. By using principles of statistical physics and information theory, we derive epigenetic energy landscapes from whole-genome bisulfite sequencing data that allow us to quantify methylation stochasticity genome-wide using Shannon’s entropy and associate entropy with chromatin structure. Moreover, we consider the Jensen-Shannon distance between sample-specific energy landscapes as a measure of epigenetic dissimilarity and demonstrate its effectiveness for discerning epigenetic differences. By viewing methylation maintenance as a communications system, we introduce methylation channels and show that higher-order chromatin organization can be predicted from their informational properties. Our results provide a fundamental understanding of the information-theoretic nature of the epigenome that leads to a powerful approach for studying its role in disease and aging.
DOI: 10.1016/j.stemcr.2014.02.002
发表时间: 2014-04-08
期刊: STEM CELL REPORTS
影响因子: 5.9
作者:
Gopinath, Suchitra D.;Webb, Ashley E.;Brunet, Anne;Rando, Thomas A.
通讯作者: Rando, Thomas A.
DOI: 10.1186/s13059-015-0741-y
发表时间: 2015-08-28
期刊: Genome biology
影响因子: 12.3
作者:
Fortin JP;Hansen KD
通讯作者: Hansen KD
DOI: 10.1038/nrg3454
发表时间: 2013-06
期刊: Nature reviews. Genetics
影响因子: --
作者:
通讯作者: --
DOI: 10.1038/nature14222
发表时间: 2015-02-19
期刊: Nature
影响因子: 64.8
作者:
Dixon JR;Jung I;Selvaraj S;Shen Y;Antosiewicz-Bourget JE;Lee AY;Ye Z;Kim A;Rajagopal N;Xie W;Diao Y;Liang J;Zhao H;Lobanenkov VV;Ecker JR;Thomson JA;Ren B
通讯作者: Ren B
DOI: 10.1038/ng.2442
发表时间: 2012-11-01
期刊: NATURE GENETICS
影响因子: 30.8
作者:
Landan, Gilad;Cohen, Netta Mendelson;Tanay, Amos
通讯作者: Tanay, Amos