一个合成生物学工具包,用于等离子体依赖和热友性甲基菌Bacillus methanolicus
Pan Liu1, Qianqian Yuan1, Xueting Yang2
1State Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
Cell reports
|December 25, 2025
概括
我们为Bacillus methanolicus开发了一个合成生物学工具包,使基因组编辑和代谢建模成为可能. 这一框架有助于C1生物制造和从甲醇中工程制造L-氨酸的生产.
科学领域:
- 微生物学 微生物学
- 合成生物学 合成生物学
- 生物技术是生物技术.
背景情况:
- 甲醇菌是一种热友性甲基类生物,具有单碳 (C1) 生物制造的潜力.
- 与传统微生物相比,有限的合成生物学工具阻碍了其应用.
研究的目的:
- 为Bacillus methanolicus建立一个全面的合成生物学框架.
- 为了实现高效的基因组编辑,代谢建模和生物制造的菌株工程.
主要方法:
- 开发了一种高效率的电穿孔协议和CRISPR-Cas9基因组编辑系统.
- 创建了用于基因整合的多种中性位置和基于云的代谢模型 (iBM822).
- 系统地分析了甲基变,限制修饰系统和染色体基因.
主要成果:
- 通过将pBM19等离子体整合到染色体中,成功设计了稳定的甲基变生.
- 使用CRISPR-Cas9系统展示了多重基因组编辑能力.
- 通过通过代谢建模和CRISPR-Cas9编辑进行工程反调节,从甲醇中实现了L-氨酸的过度生产.
结论:
- 已建立的合成生物学框架显著提升了Bacillus methanolicus对C1生物制造的实用性.
- 该工具包为工业应用促进了甲基变和应变工程的机械研究.
- 这种工程菌株显示出对可持续生产L-氨酸等有价值化合物的承诺.
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