基于结构的虚拟查有助于识别salidrosideide生物合成中的糖系转移酶
Yan Yao1,2,3, Fangfang Chen1,2,3, Chaoyan Wu1
1Department of Integrated Traditional Chinese Medicine and Western Medicine, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, China.
Plant biotechnology journal
|February 11, 2025
概括
研究人员通过转录组分析和虚拟查,确定了两种参与阿斯蒂尔贝chinensis的沙利德化物生物合成的糖转移酶 (GTs). 一个GT,Ach15909,表现出高的催化活性和基质特异性,经过修改提高了其能力.
科学领域:
- 植物生物化学 植物生物化学
- 自然产品的生物合成.
- 酶工程是什么?酶工程是什么?
背景情况:
- 糖化对植物天然产品的结构多样性至关重要.
- 识别高效的甘氨基转移酶 (GTs) 是生产有价值的甘氨基酸产品的关键.
- 功能性特征的GTs是具有挑战性和耗时的.
研究的目的:
- 为了识别参与阿斯蒂尔贝chinensis.salidroside生物合成的GTs.
- 描述已识别的GT的催化活性和基质特异性.
- 探索基于结构的修改,以增强GT活动.
主要方法:
- 对阿斯蒂尔贝 chinensis 的转录组分析.
- 基于结构的虚拟选用于GT识别.
- 生物化学测试以确定催化参数和基质特异性.
- 现场定向突变发生,以调查关键残留物和链接区域.
主要成果:
- 确定了两种参与沙利德化物生物合成的GT.
- Ach15909表现出高的催化活性和特定的基质偏好 (<150 Å3).
- 在Ach15909中对域间链接器的修改扩大了其基质接受度.
结论:
- 基于结构的虚拟选是一种有效的方法来识别植物生物合成酶.
- 已识别的GT,特别是Ach15909,在糖化物生产中具有生物技术应用的潜力.
- 这项研究为发现参与天然产品甘化过程的新型植物酶提供了基础.
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