来自CWB2的定制的P450单氧酶从Gordonia rubripertincta,用于选择性的阿里法性单氧化
Fabian Peter Josef Schultes1, Leon Welter1, Myra Schmidtke1
1Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany.
Biological chemistry
|September 27, 2024
概括
这项研究引入了一种来自Gordonia rubripertincta CWB2的新型细胞染色体P450酶,用于高效的中链异质氧化. 优化其电子传输系统显著提高了生物催化活性,以挑战单氧化反应.
科学领域:
- 生物催化和酶工程 生物催化和酶工程
- 合成化学 合成化学
- 微生物生物技术 微生物生物技术
背景情况:
- 细胞染色体P450单氧化酶 (CYP) 是C-H键功能化的关键生物催化剂.
- 已知CYP153A亚家族酶具有终端氧化,但中链的异质修饰仍然具有挑战性.
- 获得功能化的中链阿里法基对于化学合成至关重要.
研究的目的:
- 描述一种来自Gordonia rubripertincta CWB2的新型CYP153A酶,用于中链异质功能化.
- 通过将酶与电子传输系统集成,开发一种自给自足的全细胞生物催化剂.
- 通过战略链接工程来优化生物催化剂的性能.
主要方法:
- 在大肠杆菌中新型CYP153A的基因过度表达.
- CYP153A与来自Acinetobacter sp.的替代电子运输系统的融合. 在OC4.4中,它是OC4.
- 优化酶和电子运输系统组件之间的链接组合.
主要成果:
- 工程整细胞系统证明了C6-C14基,基和酒精的氧化和环氧化.
- 实现了高生产率,例如,1-hexanol的2.69mM/h和1,2-epoxyhexane的4.97mM/h.
- 链接器优化通过平衡链接器长度,灵活性和组成,提高了350%的1-hexanol产量.
结论:
- 来自G. rubripertincta CWB2的新型CYP153A是一种有效的生物催化剂,用于中链异形单氧化.
- 酶和电子运输系统的战略合使具有挑战性的阿里法特功能化成为可能.
- 链接器工程对于最大限度地提高自给自足的仿制生物催化剂的活性至关重要.
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