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Liu X, Cheng J, Zhu X, Zhang G, Yang S, Guo X, Jiang H, Ma Y. De Novo Biosynthesis of Multiple Pinocembrin Derivatives in Saccharomyces cerevisiae. ACS Synth Biol 2020; 9:3042-3051. [PMID: 33107298 DOI: 10.1021/acssynbio.0c00289] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Pinocembrin derived flavones are the major bioactive compounds presented in the Lamiaceae plants that have long been of interest due to their great pharmaceutical and economical significance. Modifications on the central skeleton of the flavone moiety have a huge impact on their biological activities. However, the enzymes responsible for structure modification of most flavones are either inefficient or remain unidentified. By integrating omics analysis of Scutellaria barbata and synthetic biology tools in yeast chassis, we characterized a novel gene encoding flavone 7-O-methyltransferase (F7OMT) and discovered a new flavone 8-hydroxylase (F8H) with increased activity. We also identified a series of flavone 6-hydroxylases (F6Hs) and flavone 8-O-methyltransferases (F8OMTs) in this study. Subsequently, we constructed the biosynthetic pathway for chrysin production by assembling catalytic elements from different species and improved the titer to 10.06 mg/L. Using the established chrysin production platform, we achieved the de novo biosynthesis of baicalein, baicalin, norwogonin, wogonin, isowogonin, and moslosooflavone in yeast. Our results indicated that the combination of omics and synthetic biology can greatly speed up the efficiency of gene mining in plants and the engineered yeasts established an alternative way for the production of pinocembrin derivatives.
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Affiliation(s)
- Xiaonan Liu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Cheng
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Xiaoxi Zhu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guanghui Zhang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, National & Local Joint Engineering Research Center on Gemplasm Utilization & Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming 650201, China
| | - Shengchao Yang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, National & Local Joint Engineering Research Center on Gemplasm Utilization & Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming 650201, China
| | - Xiaoxian Guo
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Huifeng Jiang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Yanhe Ma
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
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Zhang Q, Shao J, Zhao T, He L, Ma H, Jing L. The Role of C-8 OH on the Antioxidant Activity of Norwogonin and Isowogonin. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20924887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In the present study, the antioxidant property of 4 flavones (moslosooflavone, wogonin, isowogonin, and norwogonin) was evaluated using 6 different assays: 1,1-diphenyl-2-picrylhydrazyl (DPPH·), superoxide (O2 •−), and nitric oxide (NO) radical scavenging assays, ferrous iron chelation, reducing power, and total antioxidant capacity. The 4 flavones exhibited antioxidant activities with decreasing order as norwogonin > isowogonin >> wogonin> moslosooflavone. The present results demonstrated that norwogonin and isowogonin exhibited excellent antioxidant activity, which was mainly based on the presence of C-8 hydroxyl group.
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Affiliation(s)
- Qiushan Zhang
- Department of Clinical Laboratory, Lanzhou Hospital of Traditional Chinese Medicine, Gansu, China
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Jin Shao
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Tong Zhao
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Lei He
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Huiping Ma
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Linlin Jing
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Gansu, China
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