A chemical field guide to histone nonenzymatic modifications.

A chemical field guide to histone nonenzymatic modifications.
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DOI:
10.1016/j.cbpa.2021.05.002
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发表时间:
2021-08
影响因子:
7.8
通讯作者:
--
中科院分区:
生物学2区
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组蛋白非酶共价修饰(NECMs)是近年来研究较少的一类调节染色质结构和功能的翻译后修饰。这些NECM改变组蛋白的表面拓扑结构,它们与DNA和染色质调节剂的相互作用,以及与酶促翻译后修饰竞争修饰位点。NECM的形成取决于反应分子与其靶位点之间的化学相容性,以及它们的相对化学计量。在这里,我们调查的化学反应和条件,管理除了NECMs到组蛋白作为一个手册,以指导新的生理相关的化学加合物的识别。表征染色质上的NECM对于全面理解所谓的“组蛋白密码”的新篇章至关重要。
Histone nonenzymatic covalent modifications (NECMs) have recently emerged as an understudied class of posttranslational modifications that regulate chromatin structure and function. These NECMs alter the surface topology of histone proteins, their interactions with DNA and chromatin regulators, as well as compete for modification sites with enzymatic posttranslational modifications. NECM formation depends on the chemical compatibility between a reactive molecule and its target site, in addition to their relative stoichiometries. Here we survey the chemical reactions and conditions that govern the addition of NECMs onto histones as a manual to guide the identification of new physiologically relevant chemical adducts. Characterizing NECMs on chromatin is critical to attain a comprehensive understanding of this new chapter of the so-called “histone code”.
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