文献类型： 外文期刊
作者： Wang, Junhua 1 ; Li, Youran 3 ; Jiang, Wei 3 ; Hu, Jinyuan 6 ; Gu, Zhenghua 3 ; Xu, Sha 3 ; Zhang, Liang 3 ; Ding, Zhongyang 3 ; Chen, Wei 2 ; Shi, Guiyang 3 ;
作者机构： 1.Jiangnan Univ, Sch Biotechnol, Key Lab Ind Biotechnol, Jiangsu Prov Res Ctr Bioact Prod Proc Technol,Mini, Wuxi 214122, Jiangsu, Peoples R China
2.Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
3.Jiangnan Univ, Sch Biotechnol, Key Lab Ind Biotechnol, Minist Educ,Natl Engn Researcher Ctr Cereal Fermen, Wuxi 214122, Jiangsu, Peoples R China
4.Jiangnan Univ, Jiangsu Prov Res Ctr Bioact Prod Proc Technol, Wuxi 214122, Jiangsu, Peoples R China
5.Shanghai Acad Agr Sci, Biotechnol Res Inst, Key Lab Agr Genet & Breeding, Shanghai 201106, Peoples R China
6.Jiangnan Univ, Sch Biotechnol, Key Lab Ind Biotechnol, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China
关键词： geranylgeraniol; squalene; geranylgeranyl diphosphatesynthase; mevalonate pathway; Saccharomycescerevisiae
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2023 年 71 卷 25 期
页码：
收录情况： SCI
摘要： Optimization of supply and conversionefficiency of geranylgeranyldiphosphate (GGPP) is important for enhancing geranylgeraniol (GGOH)production in Saccharomyces cerevisiae. In this study, first, a strain producing 26.92 +/- 1.59 mg/gof dry cell weight squalene was constructed with overexpression ofall genes of the mevalonate (MVA) pathway, and an engineered strainproducing 597.12 mg/L GGOH at the shake flask level was obtained.Second, through additional expression of PaGGPPs-ERG20 and PaGGPPs-DPP1, and downregulating expression of ERG9, the GGOHtiter was increased to 1221.96 mg/L. Then, a NADH HMG-CoA reductasefrom Silicibacter pomeroyi (SpHMGR) was introduced to alleviate the high dependenceof the strain upon NADPH, and the GGOH production was further increasedto 1271.14 mg/L. Finally, the GGOH titer reached 6.33 g/L after optimizingthe fed-batch fermentation method in a 5 L bioreactor, with a 24.9%improvement from the previous report. This study might acceleratethe process of developing S. cerevisiae cell factories for diterpenoid and tetraterpenoid production.
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