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从l-tyrosine中合成萨尔维亚诺酸A的多酶级联的开发

Mingxi Zhang¹, Jiayi Zhong¹, Yuekai Zhang¹

¹School of Biological and Chemical Engineering, Ningbo Tech University, Ningbo 315100, China.

|February 17, 2025

概括

这项研究提出了一种高效的多酶级联,用于合成沙尔维阿诺酸A (SAA),这是一种对心血管健康至关重要的化合物. 这种新系统使用l-tyrosine作为起始材料,实现SAA的高产量.

科学领域:

生物技术是生物技术.
酶学是一种酶学.
合成生物学合成生物学

背景情况:

沙尔维阿诺酸A (SAA) 对于预防和治疗心血管疾病至关重要.
对于SAA的治疗应用来说,有效的生物合成是理想的.
l-tyrosine (l-Tyr) 为SAA生产提供了一种经济高效且稳定的起始材料.

研究的目的:

开发一种新的多酶级联系统,用于有效生物合成萨尔维阿诺酸A (SAA).
以经济有效和稳定的方式利用l-tyrosine作为起始材料.
为最大SAA产量优化反应条件.

主要方法:

纳入四种关键酶:Proteus vulgaris膜结合的l-氨基酸脱氨酶 (Pv ml-AAD),Pediococcus acidilactici d-乳酸脱酶 (Pa d-LDH),Escherichia coli 4-hydroxyphenylacetate 3-hydroxylase (Ec HpaBC),以及Mycobacterium vaccae N10格式脱酶 (Mv FDH).
实施一种特定的反应序列 (去胺化,性还原,正氧化) 以防止不稳定的中间体形成.
在级联中对所有反应步骤的热力学有利性评估.

主要成果:

一个新的多酶级联系统已成功开发用于SAA生物合成.
该系统从100 mM l-Tyr中获得了81.67 mM SAA的高产量,相当于81.67%的产量.
优化的反应条件确保了热力学上有利的步骤,并避免了不稳定的中间体.

结论:

开发的多酶级联系统为SAA生物合成提供了一种高效且可行的方法.
这种方法为大规模生产用于治疗目的的SAA提供了一个有前途的战略.
这项研究强调了工程酶级联在生产有价值的天然产品方面的潜力.

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