在Saccharomyces cerevisiae的新陈代谢工程中,用于切利林生物合成
Jiawei Zhu1, Kai Zhang1, Yuanzhi He1
1State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240, China.
Microbial cell factories
|June 20, 2024
概括
科学家对酵母进行了改造,以产生利,这是一种在农业和医学中有价值的化物. 这种代谢工程方法可以显著提高切利利的产量,为微生物细胞工厂铺平了道路.
科学领域:
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
- 微生物生物技术 微生物生物技术
背景情况:
- 切莱里是一种有价值的化物,在农业和医学上有应用.
- 自然资源的产量很少,化学合成是复杂的.
- 微生物宿主中生物合成途径的重建是有效生产所需的.
研究的目的:
- 为了重建和优化Saccharomyces cerevisiae中的切莱里思林生物合成途径.
- 通过代谢工程策略来增强切利利思林的生产.
- 建立一个酵母细胞工厂,用于可持续的切利利林合成.
主要方法:
- 七种植物衍生酶的异质表达,以重建该途径.
- 代谢工程包括基因拷贝数优化,辅因子平衡 (血红素和NADPH) 和产品贩运.
- 在生物反应器中培养,以确定最终产量.
主要成果:
- 第一代菌株产生了0.34μg/L的胆.
- 代谢工程策略导致产量增加近900倍.
- 在0.5L生物反应器中获得了12.61mg/L的最终标位,提高了37000倍.
结论:
- 这项研究介绍了酵母酵母中切莱利思林通路的第一个异构重建.
- 结合工程显著提高了切莱里的产量,证明了微生物细胞工厂的潜力.
- 这项工作突出了合成生物学和代谢工程对于天然产品生物合成的力量.
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