CTCF as a multifunctional protein in genome regulation and gene expression.

CTCF as a multifunctional protein in genome regulation and gene expression.
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DOI:
10.1038/emm.2015.33
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发表时间:
2015-06-05
影响因子:
12.8
通讯作者:
Kaang, Bong-Kiun
Kaang, Bong-Kiun
中科院分区:
医学2区
文献类型:
--
作者:
Kim, Somi;Yu, Nam-Kyung;Kaang, Bong-Kiun

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CCCTC结合因子(CTCF)是一种高度保守的锌指蛋白,被认为是一种转录因子。它可以作为转录激活子、抑制子或绝缘蛋白,阻断增强子和启动子之间的通讯。CTCF还可以在结合染色质结构域边界时招募其他转录因子。真核生物基因组的三维结构决定了其功能,而CTCF是帮助建立这种组织的核心结构蛋白之一。不同物种中CTCF结合位点的图谱显示,基因组上覆盖着CTCF结合位点。在这里,我们简要描述了CTCF在基因组组织和基因表达中的不同作用。
CCCTC-binding factor (CTCF) is a highly conserved zinc finger protein and is best known as a transcription factor. It can function as a transcriptional activator, a repressor or an insulator protein, blocking the communication between enhancers and promoters. CTCF can also recruit other transcription factors while bound to chromatin domain boundaries. The three-dimensional organization of the eukaryotic genome dictates its function, and CTCF serves as one of the core architectural proteins that help establish this organization. The mapping of CTCF-binding sites in diverse species has revealed that the genome is covered with CTCF-binding sites. Here we briefly describe the diverse roles of CTCF that contribute to genome organization and gene expression.
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