在Yarrowia lipolytica中通过CRISPR-Cpf1和正交T7系统进行多重基因组编辑和转录敲除
Hanqing Zhang1,2, Luai R Khoury2, Peng Xu1,3
1Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, 515063 Shantou, China.
ACS synthetic biology
|August 14, 2025
概括
这项研究提出了一个新的CRISPR-Cpf1工具包,用于在Yarrowia lipolytica中高效的基因编辑和基因敲除. 该系统可实现多重编辑和转录控制,增强其在工业生物技术中的应用.
科学领域:
- 生物技术是生物技术.
- 合成生物学 合成生物学
- 微生物工程 微生物工程
背景情况:
- 雅罗维亚 (Yarrowia lipolytica) 是一种有价值的非传统酵母,用于生产脂质,油化学品和营养药品.
- 它的合成生物学工具包不如贝克酵母的工具包发达,限制了其工业应用.
- 有效的基因组工程和代谢途径控制对于优化Y. lipolytica作为工业宿主至关重要.
研究的目的:
- 为 Yarrowia lipolytica 开发和评估一个多重化的 CRISPR-AsCpf1 基因组编辑系统.
- 用CRISPR-dAsCpf1与正交T7促进器评估基因淘汰的效率.
- 为增强Y. lipolytica.的基因操纵提供一个简单的工具包.
主要方法:
- 利用CRISPR-AsCpf1系统与来自本地或T7促进者的指导RNA (gRNA) 来进行多重基因组编辑.
- 研究了提高同质导向重组 (HDR) 效率的策略.
- 与CRISPR-dAsCpf1介导的基因敲除与CRISPR-RfxCas13d和反意义T7促进器系统进行了比较.
主要成果:
- 使用CRISPR-AsCpf1.1.实现了最多4个目标基因的73.3%的编辑效率和2个基因的100%的编辑效率.
- 观察到对同质性导向重组效率的微小改进.
- 通过CRISPR-dAsCpf1和T7驱动的gRNA证明了显著的基因淘汰,与反意义系统相似.
结论:
- 开发的CRISPR-Cpf1工具包使Y. lipolytica. 的高效和多重基因组编辑成为可能.
- 该系统有助于有效的转录敲击目标基因.
- 这项工作为推进Y. lipolytica在工业生物技术应用中提供了有价值的工具.
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