确定酵母酵母中细胞适合高水平生产甘三烯酸
Wentao Sun1,2,3, Shengtong Wan4, Chuyan Liu5
1Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
Acta pharmaceutica Sinica. B
|September 23, 2024
概括
这项研究增强了酵母酵母.
科学领域:
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
- 生物技术是生物技术.
背景情况:
- 酵母是生产植物天然产品的关键宿主,但产量往往有限.
- 优化在历史上一直专注于酶和途径,忽视了细胞和途径的适合性.
- 低产量阻碍了基于酵母的生物合成对有价值化合物的商业可行性.
研究的目的:
- 通过改善代谢和微环境适应性,开发一个框架来增强酵母中的三二生物合成.
- 克服生产复杂植物性天然化合物的局限性.
- 为了实现罕见的甘三烯酸的高水平生产.
主要方法:
- 通过增强共因子和碳流来进行异质三烯酸生物合成,剖析了代谢适应性.
- 设计了脂微环境,以提高酵母适合于内分泌网膜 (ER) 局部化的P450酶的适合性.
- 操纵了三个基因:依赖NADH的HMG-CoA还原酶 (NHMGR),SIP4 (转录因子) 和甘-1-酸盐酸酶1 (GPP1).
主要成果:
- 实现了高水平的稀有甘三烯酸的生产,达到4.92g/L.
- 通过综合代谢和微环境适应性工程来证明增强生物合成.
- 成功产生了由两个P450酶连续氧化β-阿米林而产生的三烯酸.
结论:
- 确定细胞适合性对于增强酵母中的三二生物合成至关重要.
- 开发的框架为各种植物天然产品生物合成途径提供了一种多功能方法.
- 这一策略对于生产高需求的化合物具有相当大的商业价值.
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