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一个高效的C-糖酸生产平台,通过合理调整糖酸转移酶的化学选择性来实现
Min Li1,2,3,4, Yang Zhou5, Zexing Wen1
1Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P. R. China.
Nature communications
|October 15, 2024
概括
研究人员设计了糖转移酶,以高效地合成C-糖化物,克服了制造这些有价值化合物的挑战. 这一突破使得可用于制药应用的多种糖化物的可扩展生产成为可能.
科学领域:
- 生物化学 生物化学
- 合成生物学 合成生物学
- 酶工程是什么? 酶工程是什么?
背景情况:
- 对于C-糖酸的简单合成方法是有限的,这阻碍了它们的广泛应用.
- 在化学合成中,将O-特异性甘基转移酶转化为C-甘基转移酶是一个重大挑战.
研究的目的:
- 开发一个简单且高度选择性的平台,用于合成多种C-和O-糖化物.
- 通过定向进化来设计糖转移酶以增强或切换化学选择性.
主要方法:
- 糖系转移酶MiCGT的理性定向进化产生突变MiCGT-QDP和MiCGT-ATD.
- 结构分析和计算模拟以了解基质结合和选择性.
- 机制分析以确定控制C-/O-糖化选择性的关键残留物.
主要成果:
- 生成的突变物具有增强的C-糖化或切换的O-糖化能力.
- 确定了控制基质结合模式和C-/O-糖化选择性的关键残留物.
- 工程酶在34种基质上表现出卓越的化学选择性,区域选择性和活性.
- 实现了三种C-葡萄糖化物和一种O-葡萄糖化物的グラム级生产,证明了其实用性.
结论:
- 建立了一个高度选择性的平台,用于各种糖化物合成.
- 为制药和医药产品创建多功能甘油化平台提供了实用策略.
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