通过转氨酶催化动态动态动态分辨率构建β分支芳香D-氨基酸的简洁结构
Zhenling Liu1, Wei Zhai2, Zhihua Zeng3
1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Nature communications
|March 6, 2026
概括
这项研究提出了一种高效的生物催化方法,用于使用转氨酶酶合成β分支芳香D-氨基酸. 这些新型氨基酸对药物开发至关重要,并成功地被纳入抗瘤药物中.
科学领域:
- 生物催化和酶工程 生物催化和酶工程
- 有机合成 有机合成
- 药用化学 医学化学
背景情况:
- 非正规氨基酸 (ncAAs) 在药品中至关重要,影响药物的疗效和特性.
- β分支芳香D-氨基酸的有效合成是有限的,阻碍了结构-活性关系 (SAR) 研究.
- 依赖PLP的转氨酶为奇拉氨基酸的生物催化合成提供了一个有前途的途径.
研究的目的:
- 开发β分支芳香D-氨基酸的高效不对称合成.
- 为了利用一个依赖于PLP的转氨酶,BsDAAT,用于动态动态分辨率 (DKR).
- 为了证明合成的D-氨基酸在制药修饰中的实用性.
主要方法:
- 由来自Bacillus sp.的PLP依赖转氨酶BsDAAT催化不对称的合成.
- 动态动态分辨率 (DKR) 工艺,以提高产量和立体选择性.
- 酶工程和对接分析以优化转氨酶活性.
- 将合成的D-氨基酸纳入抗瘤试剂Lanreotide中.
主要成果:
- 实现了各种β分支芳香D-氨基酸的高产量 (高达99%).
- 优秀的二聚体比率 (>20:1) 和反聚体过量值 (高达99%).
- 合成的D-氨基酸在修改抗瘤试剂Lanreotide的成功应用.
结论:
- 开发的生物催化转氨基化系统为合成有价值的β分支芳香D-氨基酸提供了一条有效的途径.
- 酶工程和DKR显著改善了这些性构建块的合成.
- 合成的D-氨基酸具有促进药物开发的潜力,特别是在瘤学领域.
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