从美瓦酸盐中生物化学合成税
Jing Li1,2,3, Xiaonan Liu1,3,4, Xiaoxi Zhu1,3,4
1Key Laboratory of Engineering Biology for Low-carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
Synthetic and systems biotechnology
|June 13, 2024
概括
这项研究介绍了一种人造系统,用于从美瓦酸盐 (MVA) 合成税,克服生物合成的低效率. 这种结合的生物和化学方法显著提高了分类素的生产,为这些抗癌化合物提供了一条新的途径.
科学领域:
- 化学生物学 化学生物学
- 合成生物学 合成生物学
- 自然产品的合成自然产品的合成
背景情况:
- 像帕克利塔塞尔一样,塔克森是来自迪特尔类的重要广泛抗癌药物.
- 以前的试图对分类素生物合成的尝试由于低效的催化步骤而面临限制.
- 低产量和产品杂乱性阻碍了高效的天然或半合成生产.
研究的目的:
- 开发一种人工合成系统,以从梅瓦酸盐 (MVA) 有效地生产分类素.
- 将生物和化学方法结合起来,以改善税合成.
- 为了克服高生物合成的瓶,提高生产产量.
主要方法:
- 开发一种人工系统,结合体外多酶催化,化学催化和酵母细胞生物转化.
- 在体外多酶系统的优化,以增加纳税产量.
- 整合催化,以提高关键中间体的转化率.
- 优化酵母酵母表达的优化,用于最终产品生物合成.
主要成果:
- 在8小时内从MVA获得了946.7mg/L的纳税产量,与微生物发酵相比,生产率增加了14.2倍.
- 使用催化,解决产量和选择性问题,达到了Taxa-4(20),11(12) -dien-5α-yl乙酸盐 (T5α-AC) 的48%的转化率.
- 在酵母中生物合成的Taxa-4(20),11(12)-dien-5α-acetoxy-10β-ol (T5α-AC-10β-ol) 含量为15.8 mg/L,比共同培养方法高2000倍以上.
结论:
- 开发的人工系统为税合成提供了一种高效的方法.
- 将生物和化学催化剂结合在一起,克服了以前的税种生产限制.
- 这一策略为大规模,经济高效的税和相关化合物的合成提供了一个有前途的新途径.
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