MBD2 and MBD3: elusive functions and mechanisms.

MBD2 and MBD3: elusive functions and mechanisms.
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DOI:
10.3389/fgene.2014.00428
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发表时间:
2014
影响因子:
3.7
通讯作者:
Stunnenberg HG
Stunnenberg HG
中科院分区:
生物学3区
文献类型:
--
作者:
Menafra R;Stunnenberg HG

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脱氧核糖核酸甲基化是一种已知已久的表观遗传标记,参与许多生物学过程,该标记的“阅读器”属于几个不同的蛋白质家族,它们“阅读”甲基化标记并将其“翻译”成功能。甲基-CpG结合结构域蛋白属于与转录激活/抑制、染色质结构调节、多能性、发育和分化相关的这些家族之一。几十年前发现的,这些读者的基因组结合位点的系统测定及其在全基因组水平上的表观基因组组成揭示了功能冰山的一角。这篇综述集中在两个成员的甲基结合蛋白,即MBD 2和MBD 3,驻留在非常相似的复合物,但似乎有非常不同的生物学作用。我们提供了一个全面的比较其全基因组的结合功能和新兴的基因调控作用。
Deoxyribonucleic acid methylation is a long known epigenetic mark involved in many biological processes and the ‘readers’ of this mark belong to several distinct protein families that ‘read’ and ‘translate’ the methylation mark into a function. Methyl-CpG binding domain proteins belong to one of these families that are associated with transcriptional activation/repression, regulation of chromatin structure, pluripotency, development, and differentiation. Discovered decades ago, the systematic determination of the genomic binding sites of these readers and their epigenome make-up at a genome-wide level revealed the tip of the functional iceberg. This review focuses on two members of the methyl binding proteins, namely MBD2 and MBD3 that reside in very similar complexes, yet appear to have very different biological roles. We provide a comprehensive comparison of their genome-wide binding features and emerging roles in gene regulation.
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