细菌生物合成从葡萄糖中获得阿比类型的迪特尔铁氨醇
Hyun Jeong Lee1, Chaeyeon Kim1,2, Yu Been Heo1,2
1BioFoundry Research Center, Institute of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, 16419, Republic of Korea.
Microbial cell factories
|March 20, 2025
概括
这项研究对Corynebacterium glutamicum进行了基因工程设计,用于微生物生产二烯. 费鲁金诺在107.34mg/L的剂量下成功产生,证明了一种新的细菌生物合成途径.
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:
- 植物化合物的微生物生产是生物制造的一个关键战略.
- 工程代谢途径和酶对于高效的生物合成至关重要.
- 这项研究侧重于Corynebacterium glutamicum用于异质二烯生产.
研究的目的:
- 为了设计Corynebacterium glutamicum用于生产二烯米尔蒂拉迪因和费鲁金诺.
- 优化新陈代谢途径以提高前体供应.
- 建立一个用于ferruginol生物合成的细菌系统.
主要方法:
- 在Corynebacterium glutamicum中进行代谢途径工程.
- 无活化pyruvate carboxylase和植物合成酶以增强前体池.
- 过度表达MEP通路酶 (Dxs,Idi) 和GGPP合成酶模块.
- 迪特尔合成酶 (DiTPS) 和P450还原酶模块 (CYP76AH1,CPR1) 的同时表达.
主要成果:
- 优化HL01菌株增强的pyruvate和geranylgeranyl pyrophosphate (GGPP) 池. 优化HL01菌株增强的pyruvate和geranylgeranyl pyrophosphate (GGPP) 池. 优化HL01菌株增强的pyruvate和geranylgeranyl pyrophosphate (GGPP) 池. 优化HL01菌株增强的pyruvate和geranyl pyrophosphate (GGPP) 池. 优化HL01菌株增强的pyruvate和geranyl pyrophosphate (GGPP) 池.
- 改造后的菌株产生了237.46 mg/L的密尔蒂拉迪因和107.34 mg/L的费鲁基诺.
- 在不断的葡萄糖养下,可以达到高度的产量.
结论:
- 模块化基因表达能够优化细菌中的异质代谢途径.
- 这标志着在细菌系统中首次成功生产ferruginol.
- 这些发现支持通过途径工程进一步优化二烯生物合成.
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