在Yarrowia lipolytica的In Vivo DNA组合中
Wei Jiang1, Ioannis Georgiadis1, Tommaso Fumagalli1,2
1The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
ACS synthetic biology
|September 30, 2025
概括
这项研究引入了Yarrowia lipolytica的新CRISPR-Cas9 DNA组装系统,使多个基因片段的高效集成成为可能. 这种方法简化了这个关键生物技术平台生物体中复杂的生物合成途径的构建.
科学领域:
- 生物技术是生物技术.
- 合成生物学 合成生物学
- 分子生物学分子生物学
背景情况:
- 雅罗维亚 (Yarrowia lipolytica) 是一种有价值的酵母平台,用于生物技术应用.
- 多个DNA片段的高效基因组集成对于Y. lipolytica的代谢工程至关重要.
研究的目的:
- 使用CRISPR-Cas9.9建立一个活体DNA组装系统,用于Y. lipolytica.
- 提高同源重组效率,以改善基因工程.
主要方法:
- 在体内开发了基于CRISPR-Cas9的DNA组装系统.
- 使用短同质臂 (50 bp) 证明了三个DNA片段的组装.
- 测试了S. cerevisiae RAD52 (ScRAD52) 和Cas9-hBrex27融合蛋白的表达,以改善整合.
主要成果:
- 使用新系统实现了3个DNA片段的53%正确组装.
- 成功构建了betaxanthin和betanin的2-3步生物合成途径.
- Cas9-hBrex27融合蛋白显著提高了整合效率,特别是在多片组件组件中,而ScRAD52则影响了生长.
结论:
- 在体内开发的DNA组装系统简化了Y. lipolytica.中的基因工程.
- Cas9-hBrex27融合蛋白是提高同源重组效率的有希望的工具.
- 这种方法简化了生物技术应用的途径构建和基因过度表达.
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