Genetic Incorporation of N-epsilon-Formyllysine, a New Histone Post-translational Modification

Genetic Incorporation of N-epsilon-Formyllysine, a New Histone Post-translational Modification
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N(ε)-甲酰赖氨酸的基因整合,一种新的组蛋白翻译后修饰。

DOI:
10.1002/cbic.201500170
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发表时间:
2015
期刊:
影响因子:
3.2
通讯作者:
Wang Jiangyun
Wang Jiangyun
中科院分区:
生物学3区
文献类型:
--
作者:
Wang Tianyuan;Zhou Qing;Li Fahui;Yu Yang;Yin Xuebin;Wang Jiangyun

文献摘要

相似文献

赖氨酸腺嘌呤是一种新发现的组蛋白和其他核蛋白的翻译后修饰(PTM);它在染色质构象调节和基因表达中具有公认但定义不清的作用。到目前为止,还没有通用的方法在蛋白质的特定位点位点特异性地修饰N ε-甲酰赖氨酸。在这里,我们报告了高效率的基因整合的非天然氨基酸N ε-甲酰赖氨酸的蛋白质产生的大肠杆菌和哺乳动物细胞,通过使用正交N ε-甲酰赖氨酸tRNA合成酶/tRNACU对。该技术可用于研究赖氨酸受体在表观遗传调控中的作用。
Lysine formylation is a newly discovered post‐translational modification (PTM) in histones and other nuclear proteins; it has a well‐recognized but poorly defined role in chromatin conformation modulation and gene expression. To date, there is no general method to site‐specifically incorporateNε‐formyllysine at a defined site of a protein. Here we report the highly efficient genetic incorporation of the unnatural amino acidNε‐formyllysine into proteins produced inEscherichia coliand mammalian cells, by using an orthogonalNε‐formyllysine tRNAsynthetase/tRNACUApair. This technique can be applied to study the role of lysine formylation in epigenetic regulation.