Potential energy landscapes identify the information-theoretic nature of the epigenome.
Potential energy landscapes identify the information-theoretic nature of the epigenome.
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势能景观确定了表观基因组的信息理论性质。
DOI:
10.1038/ng.3811
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发表时间:
2017-05
期刊:
影响因子:
30.8
通讯作者:
Feinberg AP
中科院分区:
文献类型:
--
作者:
Jenkinson G;Pujadas E;Goutsias J;Feinberg AP
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.
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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.
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:
--
影响因子:
64.8
作者:
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通讯作者:
Ren B
影响因子:
30.8
作者:
Landan, Gilad;Cohen, Netta Mendelson;Tanay, Amos
通讯作者:
Tanay, Amos