由SETD6对转录因子E2F1的甲基化通过正反机制调节SETD6的表达
Margarita Kublanovsky1, Gizem T Ulu2, Sara Weirich2
1The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Be'er-Sheva, Israel; The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Be'er-Sheva, Israel.
The Journal of biological chemistry
|September 10, 2023
概括
转录因子E2F1调节了SETD6mRNA的表达. 然后SETD6甲基化E2F1,创建一个积极的反循环,增强SETD6的表达,突出甲基化.
科学领域:
- 分子生物学分子生物学
- 基因规则 基因规则
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 含有SET域的蛋白6 (SETD6) 是一种蛋白质氨酸甲基转移酶,参与细胞活动,发育和病理学.
- 调节SETD6mRNA表达的上游信号以前是未知的.
- 生物信息分析表明,转录因子E2F1在SETD6调控中可能发挥作用.
研究的目的:
- 为了研究调节SETD6mRNA表达的上游信号.
- 阐明SETD6和E2F1.1.之间的关系.
- 描述基因转录中SETD6-E2F1相互作用的机制.
主要方法:
- 生物信息分析以确定潜在的转录因子结合部位.
- 实验验证E2F1与SETD6促进体结合.
- 在体外和细胞测试以评估SETD6介导的E2F1在K117.7的甲基化.
- 在SETD6枯竭或E2F1突变表达后进行RNA表达分析.
主要成果:
- E2F1与SETD6促进体结合,并积极调节SETD6mRNA的表达.
- 具体来说,SETD6在 lysine 117 (K117) 中单甲基化E2F1.
- 在K117的E2F1甲基化对于SETD6mRNA表达的正调节至关重要;突变或SETD6枯竭取消了这一效应.
结论:
- 在E2F1调节SETD6表达的地方存在一个积极的反循环,而SETD6介导的E2F1甲基化增强了这种调节.
- 这种依赖甲基化的反机制对于控制SETD6mRNA水平至关重要.
- 这项研究强调了蛋白质氨酸甲基转移酶和甲基化信号在基因转录调节中的重要性.
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