Epigenetic virtues of chromodomains.

Epigenetic virtues of chromodomains.
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DOI:
10.3109/10409238.2011.619164
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发表时间:
2011-12
影响因子:
6.5
通讯作者:
Khorasanizadeh S
Khorasanizadeh S
中科院分区:
生物学2区
文献类型:
--
作者:
Blus BJ;Wiggins K;Khorasanizadeh S

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染色质组织修饰结构域(染色质结构域)首先被确定为与果蝇染色质沉默相关的基序。越来越多的证据表明,染色体结构域在不同的真核生物物种中是进化保守的,以控制表观遗传调控的各个方面。虽然最初被报道为组蛋白H3甲基赖氨酸读者,但chromodomain功能现在已经扩展到识别其他组蛋白和非组蛋白伴侣以及与核酸的相互作用。染色体结构域结合到一组不同的目标是介导的一个保守的子结构称为染色体同源区。该基序可用于预测甲基赖氨酸结合,并将染色质结构域与相关的Tudor“皇家”家族成员区分开。本文根据不同的染色域的背景、结构和靶点识别机制对染色域进行了分类和讨论。
The chromatin organization modifier domain (chromodomain) was first identified as a motif associated with chromatin silencing in Drosophila. There is growing evidence that chromodomains are evolutionary conserved across different eukaryotic species to control diverse aspects of epigenetic regulation. Although originally reported as histone H3 methyllysine readers, the chromodomain functions have now expanded to recognition of other histone and non-histone partners as well as interaction with nucleic acids. Chromodomain binding to a diverse group of targets is mediated by a conserved substructure called the chromobox homology region. This motif can be used to predict methyllysine binding and distinguish chromodomains from related Tudor “Royal” family members. In this review, we discuss and classify various chromodomains according to their context, structure and the mechanism of target recognition.
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