3D genome, on repeat: Higher-order folding principles of the heterochromatinized repetitive genome.
3D genome, on repeat: Higher-order folding principles of the heterochromatinized repetitive genome.
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DOI:
10.1016/j.cell.2022.06.052
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发表时间:
2022-07-21
期刊:
影响因子:
64.5
通讯作者:
Phillips-Cremins, Jennifer E.
中科院分区:
文献类型:
--
作者:
Haws, Spencer A.;Simandi, Zoltan;Barnett, R. Jordan;Phillips-Cremins, Jennifer E.
Nearly half of the human genome is comprised of diverse repetitive sequences ranging from satellite repeats to retrotransposable elements. Such sequences are susceptible to stepwise expansions, duplications, inversions, and recombination events which can compromise genome function. In this review, we discuss the higher-order folding mechanisms of compartmentalization and loop extrusion and how they shape, and are shaped by, heterochromatin. Using primarily mammalian model systems, we contrast mechanisms governing H3K9me3-mediated heterochromatinization of the repetitive genome and highlight emerging links between repetitive elements and chromatin folding.
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