开发以核为准的基因组尾基光亲和探针,以分析原生细胞中的表观遗传相互作用体
Yu Wang1, Jian Fan2, Xianbin Meng3
1School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Key Laboratory of Animal Source of Anhui Province, Hefei University of Technology, Hefei, 230009, China.
Nature communications
|January 6, 2025
概括
研究人员开发了一种新型的光 afinity 探测器,以对活细胞中的基因组转化后修饰 (hPTM) 和它们的相互作用体进行分析. 该工具有助于理解表观遗传调节,并发现各种细胞类型中的新蛋白相互作用.
科学领域:
- 表观遗传学和分子生物学
- 化学生物学 化学生物学
- 细胞生物学 细胞生物学
背景情况:
- 了解基因组翻译后修饰 (hPTMs) 是破译表观遗传调节通路的关键.
- 现有的光亲和工具在本地细胞环境中的hPTMs的现场分析中扎.
- 开发hPTM相互作用体活细胞分析方法至关重要.
研究的目的:
- 为了创建一个核向的光亲和探测器,用于hPTM介导的交互原子的现场分析.
- 研究各种细胞系中的hPTM相互作用体,包括难以转移的细胞系.
- 扩大研究活细胞中由hPTMs调节的蛋白与蛋白相互作用 (PPI) 的可用工具.
主要方法:
- 将细胞透性,核定位信号和光反应分子集成到基于hPTM的中.
- 特定探针的设计和合成,例如用于素H3氨酸4三甲基化和素H3氨酸9十字化.
- 在HeLa和RAW264.7细胞中应用探针,用于互动原子造型.
主要成果:
- 成功开发了一种准细胞核的光亲和探针,用于活细胞的hPTM互动原子分析.
- 在容易和难以转移的细胞系 (HeLa和RAW264.7) 中已证明有效性.
- 对不同细胞类型的特定hPTMs确定了不同的相互作用体,包括AF9作为基因素H3氨酸9乳化酶的结合剂.
结论:
- 开发的探测器使得在本地细胞中hPTM介导的相互作用体的有效的现场分析成为可能.
- 这项技术有助于发现新的hPTM蛋白相互作用,并扩大对表观遗传调节的理解.
- 该探头是对在活细胞系统中研究hPTM介导的PPI的工具包的一个有价值的补充.
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