The Xist lncRNA exploits three-dimensional genome architecture to spread across the X chromosome.
The Xist lncRNA exploits three-dimensional genome architecture to spread across the X chromosome.
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DOI:
10.1126/science.1237973
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发表时间:
2013-08-16
期刊:
影响因子:
--
通讯作者:
Guttman M
中科院分区:
文献类型:
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作者:
Engreitz JM;Pandya-Jones A;McDonel P;Shishkin A;Sirokman K;Surka C;Kadri S;Xing J;Goren A;Lander ES;Plath K;Guttman M
Many large noncoding RNAs (lncRNAs) regulate chromatin, but the mechanisms by which they localize to genomic targets remain unexplored. Here we investigate the localization mechanisms of the Xist lncRNA during X-chromosome inactivation (XCI), a paradigm of lncRNA-mediated chromatin regulation. During the maintenance of XCI, Xist binds broadly across the X-chromosome. During initiation of XCI, Xist initially transfers to distal regions across the X-chromosome that are not defined by specific sequences. Instead, Xist identifies these regions by exploiting the three-dimensional conformation of the X-chromosome. Xist requires its silencing domain to spread across actively transcribed regions and thereby access the entire chromosome. This suggests a model where Xist coats the X-chromosome by searching in three dimensions, modifying chromosome structure, and spreading to newly accessible locations.
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影响因子:
56.9
作者:
Carninci, P;Kasukawa, T;Hayashizaki, Y
通讯作者:
Hayashizaki, Y
DOI:
10.1038/nrg3454
发表时间:
2013-06
期刊:
Nature reviews. Genetics
影响因子:
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作者:
通讯作者:
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影响因子:
10.5
作者:
Cabili, Moran N.;Trapnell, Cole;Rinn, John L.
通讯作者:
Rinn, John L.
影响因子:
7.8
作者:
Clemson, CM;McNeil, JA;Willard, HF;Lawrence, JB
通讯作者:
Lawrence, JB
影响因子:
46.9
作者:
通讯作者:
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