Nuclear organization and genome function.
Nuclear organization and genome function.
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DOI:
10.1146/annurev-cellbio-101011-155824
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发表时间:
2012
影响因子:
11.3
通讯作者:
Corces VG
中科院分区:
文献类型:
--
作者:
Van Bortle K;Corces VG
Long-range interactions between transcription regulatory elements play an important role in gene activation, epigenetic silencing, and chromatin organization. Transcriptional activation or repression of developmentally regulated genes is often accomplished through tissue specific chromatin architecture and dynamic localization between active transcription factories and repressive Polycomb bodies. However, the mechanisms underlying the structural organization of chromatin and the coordination of physical interactions are not fully understood. Insulators and Polycomb group proteins form highly conserved multi-protein complexes that mediate functional long-range interactions, and have proposed roles in nuclear organization. In this review, we explore recent findings that have broadened our understanding of the function of these proteins and provide an integrative model for the roles of insulators in nuclear organization.
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