一种含有基因编码双二胺连接体的人工铜-米歇尔酶,用于对基酸盐进行不对称的添加
Ru Jiang1, Fabrizio Casilli1, Andy-Mark W H Thunnissen2
1Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 3, 9747 AG, Groningen, The Netherlands.
Angewandte Chemie (International ed. in English)
|February 13, 2025
概括
研究人员使用非正规氨基酸开发了一种新的铜人工金属酶 (ArM). 这种工程 Cu_Michaelase 能够通过新的生物催化转化,高效,对有价值的制药前体进行酶选择性合成.
科学领域:
- 生物催化剂是一种生物催化剂.
- 合成化学 合成化学
- 蛋白质工程是指蛋白质工程.
背景情况:
- 人工金属酶 (ArM) 提供了超越自然酶的新生物催化能力.
- 使用非正规氨基酸开发ARM具有独特的挑战和机遇.
研究的目的:
- 通过使用基因编码的铜结合配体, (2,2-双皮里丁-5-yl) 氨酸 (BpyA) 来设计一种新的依赖铜的人工迈凯拉酶 (Cu_Michaelase).
- 通过定向进化优化Cu_Michaelase,以提高催化性能.
- 应用进化的Cu_Michaelase在有价值的制药前体的不对称合成中.
主要方法:
- 一种非正规铜结合氨基酸 (BpyA) 的遗传编码.
- 定向进化用于优化人工金属酶.
- 铜催化不对称的迈克尔加法反应.
- 进行X射线晶体学和动力学研究以进行表征.
主要成果:
- 通过定向进化成功开发和优化含有BpyA的Cu_Michaelase.
- 在非对称的2 - 乙亚烯添加到酸中,高产量 (>99%) 和异构选择性 (>99% ee).
- 证明了准备规模合成能力和对催化效率改进的结构/动力洞察力.
结论:
- 这项工作表明了ARM利用非正规金属结合联体的潜力,用于新型生物催化剂.
- 进化的Cu_Michaelase提供了一条有效的途径,以获得奇拉性γ-酸黄油酸衍生物,有价值的制药中间体.
- 结构和运动数据阐明了增强催化活性的基础.
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