结构模型导向的重编程使甲和甲合成酶的功能互换成为可能.
Li Zhang1, Yinghan Chen2, Yan Wang1
1State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Department of Neurology, Nanjing Drum Tower Hospital, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing, 210023, China.
Angewandte Chemie (International ed. in English)
|October 29, 2025
概括
研究人员确定了细菌烯合成酶的phomactatriene和verticillene,揭示了一个共享的生物合成途径. 这些酶的工程设计为自然产品合成中的生物技术应用提供了潜力.
科学领域:
- 自然产品化学 自然产品化学
- 酶学 是一种酶学.
- 生物技术是生物技术.
背景情况:
- 类是结构上最多样化的天然产品,由合成酶 (TPS) 合成,形成复杂的碳骨架.
- 福马克塔里因和基是共享独特的双循环[9.3.1]五甲基骨架的双循环二甲基.
研究的目的:
- 识别和描述涉及到phomactatriene和verticillene生物合成的烯合成体.
- 阐明共享的生物合成路径,并探索工程合成酶的潜力.
主要方法:
- 基因组挖掘被用来识别细菌的烯合成酶:甲合成酶 (SiPS) 和两个甲合成酶 (LxVS,AxVS).
- 用密度函数理论 (DFT) 的计算来分析反应路径.
- 进行了比较结构建模,分子建模和位点定向突变发生,以了解酶功能和相互转换.
主要成果:
- 鉴定SiPS,LxVS和AxVS,这些细菌酶是催化剂,可催化出phomactatriene和verticillene.
- DFT计算证实了两种化合物家族的共享生物合成途径.
- 通过结构分析和突变发生,通过结构分析和突变发生,实现了不同类型的烯合成酶之间的功能互换.
结论:
- 这项研究揭示了phomactatriene和verticillene家族的共同生物合成起源,通过特定的烯合成酶进行介导.
- 这些发现增强了对烯生物合成和酶进化的理解.
- 工程合成酶在生产各种天然产品方面具有重要的生物技术应用潜力.
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