使用CRISPR-dCas9对可点击染色体进行终端尿转移酶介导的位点定向访问
Jerrin Thomas George1, Mohd Azhar, Meghali Aich
1Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune Dr. Homi Bhabha Road, Pune 411008, India.
Journal of the American Chemical Society
|July 14, 2020
概括
研究人员开发了sgRNA-Click (sgR-CLK),这是一种新的CRISPR技术,使用生物直角点击化学来将合成分子附加到目标基因上. 这项创新使得小分子探针和基因功能研究的诊断工具能够精确显示.
科学领域:
- 分子生物学
- 化学生物学
- 基因编辑技术
背景情况:
- 通过单向导RNA (sgRNA) 进行基因向的CRISPR系统非常强大.
- 使用CRISPR在目标基因上显示小分子在技术上是有限的.
- 了解基因功能需要特定位置的分子质疑.
研究的目的:
- 开发一种使用CRISPR对目标基因显示合成分子的创新方法.
- 通过CRISPR技术将小分子连接到基因的局限性.
- 为基因功能研究和工具开发创建一个多功能平台.
主要方法:
- 开发了使用生物直角点击化学的sgRNA-Click (sgR-CLK) 技术.
- 重用终端尿转移酶 (TUTase) 用于sgRNA的化学酶标记.
- 通过点击反应生成的azide-modified sgRNA,用于对染色体进行特定的合成标记显示.
主要成果:
- 已证明与CRISPR-dCas9系统兼容的功能性阿齐德尾 sgRNAs.
- 通过sgR-CLK成功地在染色体上显示合成标签 (生物素).
- 验证了sgR-CLK对目标基因精确分子显示的有用性.
结论:
- sgRNA-Click (sgR-CLK) 是CRISPR技术,生物直角化学和TUTase应用中的一个进步.
- 这种方法提供了一种简化的方法,用于对小分子探针和诊断工具的现场定向显示.
- 这项技术增强了基因功能解码和开发新型分子调节器的CRISPR工具箱.
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