用CRISPR-Cas9调解基因组编辑Kluyveromyces marxianus用于代,多重基因破坏和途径集成
Wenliang Wang1, Xinkai Wang1, Yadi Tan1
1MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, China.
Biotechnology and bioengineering
|May 22, 2024
概括
我们开发了一种改进的CRISPR-Cas9基因组编辑工具,用于Kluyveromyces marxianus,提高了基因修饰的效率. 这一进步促进了这种酵母用于各种生物产品制造的工程.
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:
- 克劳维罗米切斯 (Kluyveromyces marxianus) 是一种强大的酵母,具有重要的生物制品制造潜力.
- 对于K. marxianus,现有的基因组编辑工具需要优化,以提高效率和易用性.
研究的目的:
- 为了改造K. marxianus以提高基因组编辑能力.
- 为K. marxianus.开发一个简化和更有效的CRISPR-Cas9系统.
主要方法:
- 通过修改DNA修复途径 (损坏非同类末端连接,增强同类重组) 来改造K. marxianus.
- 开发了一个集成的CRISPR-Cas9系统,具有可适应的gRNA表达等离子体.
- 利用tRNA-gRNA数组进行多重和无痕的基因组编辑.
主要成果:
- 通过短的同质臂 (高达40bp) 实现了增强的同质导向修复.
- 启用了代式,无标记物基因组编辑,无需等离子体治愈.
- 证明了至少四个目标的多重编辑和12kb磁带的体内组装.
结论:
- 开发的基因组编辑工具显著提高了K. marxianus. 的遗传处理能力.
- 这种系统使K. marxianus的先进工程用于工业化工生产.
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