通过DELTEX ubiquitin E3 酶 DTX3L 进行核酸的ubiquitylation
Kang Zhu1,2, Chatrin Chatrin3, Marcin J Suskiewicz4
1Sir William Dunn School of Pathology, University of Oxford, Oxford, UK. kang.zhu@path.ox.ac.uk.
EMBO reports
|September 6, 2024
概括
研究人员发现,核酸,如DNA和RNA,可以通过键无处不在. 这种由DTX3L介导的可逆修饰扩大了已知无处不在的作用,超出了蛋白质的范围.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 遗传学 遗传学 是一个
背景情况:
- 随处化传统上针对蛋白质,但最近已经确定了非蛋白质基质.
- 除了蛋白质和小分子之外,无处不在基质的范围在很大程度上仍未被探索.
- 了解新的无处不在基质对于全面了解翻译后修改至关重要.
研究的目的:
- 调查核酸是否可以作为直接无处不在的基质.
- 为了识别涉及核酸无处不在的特定E3无处不在酶.
- 探索核酸无处不在的可逆性和潜在的功能影响.
主要方法:
- 采用纯化的DTX3L和其他DELTEX家族成员的DNA和RNA进行了体外无处不在测定.
- DTX3L介导的无处不在的核酸特异性分析.
- 使用各种deubiquitylating酶 (DUBs) 进行脱化试验,包括USP2,JOSD1和SARS-CoV-2 PLpro.
主要成果:
- 通过埃斯特键形成,提出了通过DNA和RNA直接无处不在的证据.
- 在实验室中,DTX3L和DTX3被确定为能够使核酸无处不在的E3无处不在酶.
- DTX3L表现出对3'-终端腺和核酸无处不在的偏好,通过特定的DUBs可逆.
结论:
- 核酸是无处不在的新基质,通过结通过DTX3L和DTX3进行介导.
- 核酸的无处不在是一种可逆的过程,表明了监管潜力.
- 这一发现为研究核酸在生物系统中无处不在的功能作用开辟了新的途径.
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