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工程 Pseudomonas aeruginosa用于 (R) -3-基酸生产

Shuai Wang^1,2, Haiying Yu³, Kun Zhu¹

¹CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.

|May 6, 2025

概括

这项研究设计了Pseudomonas aeruginosa,通过中间R-3-(R-3-hydroxyalkanoyloxy) 酸 (HAAs) 产生中长链 (mcl) (R) -3-基酸 (R-3HAs). 性水解有效地将这些中间体转化为R-3HA单体.

科学领域:

生物技术是生物技术.
代谢工程是代谢工程.
合成生物学合成生物学

背景情况:

中链长度 (mcl) (R) -3-基酸 (R-3HAs) 是制药品和精细化学品的重要性构建块.
由于有效的生物合成途径和合适的微生物菌株的限制,R-3HAs的工业生产受到阻碍.

研究的目的:

开发一种微生物平台,用于增强 mcl R-3HA 单体的生产.
为了利用R-3-(R-3-hydroxyalkanoyloxy) 酸 (HAAs) 作为R-3HA单体合成的前体池.

主要方法:

通过淘汰rhlB和rhlC基因,切断Pseudomonas aeruginosa PAO1中的脂合成途径.
通过淘汰关键β-氧化途径基因,进一步增强HAA的产生.
累积HAA的性水解产生R-3HA单体.

主要成果:

介质HAA在培养上游物中的积累.
达到了大约18g/L的HAA标位.
在80°C使用0.5M NaOH的2.5小时内,高效地将HAA溶解成 (R) -3-基酸 (R-3HD) 单体,其纯度为95%,在80°C使用0.5M NaOH.

结论:

工程化Pseudomonas aeruginosa可以有效地产生mcl R-3HA前体 (HAAs).
性水解提供了一种快速有效的方法,用于将HAA转化为R-3HA单体.
这一战略为工业规模生产有价值的R-3HA化合物提供了一个有前途的途径.

关键词:

R-3-(R-3-基基酸-基基酸-基酸 (R) - 3 - 基甲基酸 (R) - 3 - 基甲基酸 (R) - 3 - - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - - 基甲酸 (R) - 3 - - 基甲酸 (R) - 3 - - 基甲酸 (R) - 3 - - 基甲酸 (R) - 3 - - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 - 基甲酸 (R) - 3 拉姆诺脂类是一种脂.

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