阿里斯托洛基因合成酶的突变促进了阿斯珀吉勒斯或瑞萨菌中阿里斯托洛基因的氧化
Thirat Anumon1, Pakorn Wattana-Amorn1
1Department of Chemistry, Special Research Unit for Advanced Magnetic Resonance and Center of Excellence for Innovation in Chemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand.
Chemistry & biodiversity
|January 27, 2025
概括
来自Menisporopsis theobromae的合成酶 (MtAS) 的酶突变改变了类的产生. 突变的MtAS产生了新型基亚里斯托洛,这表明了基类多样性的新策略.
科学领域:
- 生物化学 生化学
- 分子生物学分子生物学
- 代谢工程是代谢工程.
背景情况:
- 基合成酶 (TPS) 是各种基类生物合成中的关键酶.
- 梅尼斯波罗opsis theobromae通过MtAS酶产生一种有价值的类类化合物阿里斯托洛.
- 了解MtAS的功能是工程制造基化物生产的关键.
研究的目的:
- 为了研究芳香残留物在MtAS活性部位对阿里斯托洛生物合成的作用.
- 探索酶工程的潜力,以产生新的基基结构.
- 为了阐明由突变的MtAS.产品形成的机制.
主要方法:
- 在Aspergillus oryzae中野生型和突变的mtas基因的异质表达.
- 在MtAS.中的芳香残留物 (Y83,F103,F169,W323) 的位点定向突变发生.
- 使用分析化学技术分析类产品的分析.
- 食实验,以评估产品的来源.
主要成果:
- 野生类型mtas的异质表达产生了 (+) - 亚里斯托洛基因.
- 在MtAS中的F103W,F169A和F169W突变导致 (2R,4S,5R,7S) -2-基亚里斯托洛作为主要产品的产生.
- 其他代谢物的初步鉴定,包括生殖基A和各种基类.
- 养实验表明,氧化产品主要由突变的MtAS.催化.
结论:
- 围绕MtAS活性部位的芳香残留物对阿里斯托洛基因循环和稳定至关重要.
- MtAS的酶工程可以将塞斯基特类生物合成重定向到新型衍生物,如基亚里斯托洛.
- 突变的MtAS酶表现出改变的催化活性,可能促进氧化反应.
- 这项研究提供了关于扩大类类多样性的酶工程策略的见解.
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