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Song Y, Liu H, Quax WJ, Zhang Z, Chen Y, Yang P, Cui Y, Shi Q, Xie X. Application of valencene and prospects for its production in engineered microorganisms. Front Microbiol 2024; 15:1444099. [PMID: 39171255 PMCID: PMC11335630 DOI: 10.3389/fmicb.2024.1444099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024] Open
Abstract
Valencene, a sesquiterpene with the odor of sweet and fresh citrus, is widely used in the food, beverage, flavor and fragrance industry. Valencene is traditionally obtained from citrus fruits, which possess low concentrations of this compound. In the past decades, the great market demand for valencene has attracted considerable attention from researchers to develop novel microbial cell factories for more efficient and sustainable production modes. This review initially discusses the biosynthesis of valencene in plants, and summarizes the current knowledge of the key enzyme valencene synthase in detail. In particular, we highlight the heterologous production of valencene in different hosts including bacteria, fungi, microalgae and plants, and focus on describing the engineering strategies used to improve valencene production. Finally, we propose potential engineering directions aiming to further increase the production of valencene in microorganisms.
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Affiliation(s)
- Yafeng Song
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Huizhong Liu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Wim J. Quax
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Zhiqing Zhang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yiwen Chen
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Ping Yang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yinhua Cui
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qingshan Shi
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xiaobao Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Detection Center of Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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Chen R, Wang J, Xu J, Nie S, Chen C, Li Y, Li Y, He J, Li W, Wen M, Qiao J. Heterologous Biosynthesis of Kauralexin A1 in Saccharomyces cerevisiae through Metabolic and Enzyme Engineering. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7308-7317. [PMID: 38529564 DOI: 10.1021/acs.jafc.4c00856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Kauralexin A1 (KA1) is a key intermediate of the kauralexin A series metabolites of maize phytoalexins. However, their application is severely limited by their low abundance in maize. In this study, an efficient biosynthetic pathway was constructed to produce KA1 in Saccharomyces cerevisiae. Also, metabolic and enzyme engineering strategies were applied to construct the high-titer strains, such as chassis modification, screening synthases, the colocalization of enzymes, and multiple genomic integrations. First, the KA1 precursor ent-kaurene was synthesized using the efficient diterpene synthase GfCPS/KS from Fusarium fujikuroi, and optimized to reach 244.36 mg/L in shake flasks, which displayed a 200-fold increase compared to the initial strain. Then, the KA1 was produced under the catalysis of ZmCYP71Z18 from Zea mays and SmCPR1 from Salvia miltiorrhiza, and the titer was further improved by integrating the fusion protein into the genome. Finally, an ent-kaurene titer of 763.23 mg/L and a KA1 titer of 42.22 mg/L were achieved through a single-stage fed-batch fermentation in a 5 L bioreactor. This is the first report of the heterologous biosynthesis of maize diterpene phytoalexins in S. cerevisiae, which lays a foundation for further pathway reconstruction and biosynthesis of the kauralexin A series maize phytoalexins.
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Affiliation(s)
- Ruiqi Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Jingru Wang
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
- School of life science, Liaoning University, Shenyang 110036, China
| | - Junsong Xu
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Shengxin Nie
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Chen Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Yukun Li
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Yanni Li
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jianwei He
- School of life science, Liaoning University, Shenyang 110036, China
| | - Weiguo Li
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Mingzhang Wen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jianjun Qiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
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Feng W, Mehari TG, Fang H, Ji M, Qu Z, Jia M, Wang D, Ditta A, Khan MKR, Cao Y, Wu J, Wang B. Genome-wide identification of the geranylgeranyl pyrophosphate synthase (GGPS) gene family involved in chlorophyll synthesis in cotton. BMC Genomics 2023; 24:176. [PMID: 37020266 PMCID: PMC10077690 DOI: 10.1186/s12864-023-09249-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/14/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Geranylgeranyl pyrophosphate synthase (GGPS) is a structural enzyme of the terpene biosynthesis pathway that is involved in regulating plant photosynthesis, growth and development, but this gene family has not been systematically studied in cotton. RESULTS In the current research, genome-wide identification was performed, and a total of 75 GGPS family members were found in four cotton species, Gossypium hirsutum, Gossypium barbadense, Gossypium arboreum and Gossypium raimondii. The GGPS genes were divided into three subgroups by evolutionary analysis. Subcellular localization prediction showed that they were mainly located in chloroplasts and plastids. The closely related GGPS contains a similar gene structure and conserved motif, but some genes are quite different, resulting in functional differentiation. Chromosome location analysis, collinearity and selection pressure analysis showed that many fragment duplication events occurred in GGPS genes. Three-dimensional structure analysis and conservative sequence analysis showed that the members of the GGPS family contained a large number of α-helices and random crimps, and all contained two aspartic acid-rich domains, DDxxxxD and DDxxD (x is an arbitrary amino acid), suggesting its key role in function. Cis-regulatory element analysis showed that cotton GGPS may be involved in light response, abiotic stress and other processes. A GGPS gene was silenced successfully by virus-induced gene silencing (VIGS), and it was found that the chlorophyll content in cotton leaves decreased significantly, suggesting that the gene plays an important role in plant photosynthesis. CONCLUSIONS In total, 75 genes were identified in four Gossypium species by a series of bioinformatics analysis. Gene silencing from GGPS members of G. hirsutum revealed that GGPS plays an important regulatory role in photosynthesis. This study provides a theoretical basis for the biological function of GGPS in cotton growth and development.
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Affiliation(s)
- Wenxiang Feng
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | | | - Hui Fang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Meijun Ji
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Zijian Qu
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Mengxue Jia
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Dongmei Wang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Allah Ditta
- Plant Breeding and Genetics Division, Nuclear Institute for Agriculture and Biology, Faisalabad, 38000, Pakistan
| | - Muhammad K R Khan
- Plant Breeding and Genetics Division, Nuclear Institute for Agriculture and Biology, Faisalabad, 38000, Pakistan
| | - Yunying Cao
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Jianyong Wu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China.
| | - Baohua Wang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China.
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A highly efficient transcriptome-based biosynthesis of non-ethanol chemicals in Crabtree negative Saccharomyces cerevisiae. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:37. [PMID: 36870984 PMCID: PMC9985264 DOI: 10.1186/s13068-023-02276-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/04/2023] [Indexed: 03/06/2023]
Abstract
BACKGROUND Owing to the Crabtree effect, Saccharomyces cerevisiae produces a large amount of ethanol in the presence of oxygen and excess glucose, leading to a loss of carbon for the biosynthesis of non-ethanol chemicals. In the present study, the potential of a newly constructed Crabtree negative S. cerevisiae, as a chassis cell, was explored for the biosynthesis of various non-ethanol compounds. RESULTS To understand the metabolic characteristics of Crabtree negative S. cerevisiae sZJD-28, its transcriptional profile was compared with that of Crabtree positive S. cerevisiae CEN.PK113-11C. The reporter GO term analysis showed that, in sZJD-28, genes associated with translational processes were down-regulated, while those related to carbon metabolism were significantly up-regulated. To verify a potential increase in carbon metabolism for the Crabtree negative strain, the production of non-ethanol chemicals, derived from different metabolic nodes, was then undertaken for both sZJD-28 and CEN.PK113-11C. At the pyruvate node, production of 2,3-butanediol and lactate in sZJD-28-based strains was remarkably higher than that of CEN.PK113-11C-based ones, representing 16.8- and 1.65-fold increase in titer, as well as 4.5-fold and 0.65-fold increase in specific titer (mg/L/OD), respectively. Similarly, for shikimate derived p-coumaric acid, the titer of sZJD-28-based strain was 0.68-fold higher than for CEN.PK113-11C-based one, with a 0.98-fold increase in specific titer. While farnesene and lycopene, two acetoacetyl-CoA derivatives, showed 0.21- and 1.88-fold increases in titer, respectively. From malonyl-CoA, the titer of 3-hydroxypropionate and fatty acids in sZJD-28-based strains were 0.19- and 0.76-fold higher than that of CEN.PK113-11C-based ones, respectively. In fact, yields of products also improved by the same fold due to the absence of residual glucose. Fed-batch fermentation further showed that the titer of free fatty acids in sZJD-28-based strain 28-FFA-E reached 6295.6 mg/L with a highest reported specific titer of 247.7 mg/L/OD in S. cerevisiae. CONCLUSIONS Compared with CEN.PK113-11C, the Crabtree negative sZJD-28 strain displayed a significantly different transcriptional profile and obvious advantages in the biosynthesis of non-ethanol chemicals due to redirected carbon and energy sources towards metabolite biosynthesis. The findings, therefore, suggest that a Crabtree negative S. cerevisiae strain could be a promising chassis cell for the biosynthesis of various chemicals.
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Hedin KA, Kruse V, Vazquez-Uribe R, Sommer MOA. Biocontainment strategies for in vivo applications of Saccharomyces boulardii. Front Bioeng Biotechnol 2023; 11:1136095. [PMID: 36890914 PMCID: PMC9986445 DOI: 10.3389/fbioe.2023.1136095] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/06/2023] [Indexed: 02/22/2023] Open
Abstract
The human gastrointestinal tract is a complex and dynamic environment, playing a crucial role in human health. Microorganisms engineered to express a therapeutic activity have emerged as a novel modality to manage numerous diseases. Such advanced microbiome therapeutics (AMTs) must be contained within the treated individual. Hence safe and robust biocontainment strategies are required to prevent the proliferation of microbes outside the treated individual. Here we present the first biocontainment strategy for a probiotic yeast, demonstrating a multi-layered strategy combining an auxotrophic and environmental-sensitive strategy. We knocked out the genes THI6 and BTS1, causing thiamine auxotrophy and increased sensitivity to cold, respectively. The biocontained Saccharomyces boulardii showed restricted growth in the absence of thiamine above 1 ng/ml and exhibited a severe growth defect at temperatures below 20°C. The biocontained strain was well tolerated and viable in mice and demonstrated equal efficiency in peptide production as the ancestral non-biocontained strain. In combination, the data support that thi6∆ and bts1∆ enable biocontainment of S. boulardii, which could be a relevant chassis for future yeast-based AMTs.
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Affiliation(s)
| | | | - Ruben Vazquez-Uribe
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs Lyngby, Denmark
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Gao HY, Zhao H, Hu TY, Jiang ZQ, Xia M, Zhang YF, Lu Y, Liu Y, Yin Y, Chen XC, Luo YF, Zhou JW, Wang JD, Gao J, Gao W, Huang LQ. Metabolic Engineering of Saccharomyces cerevisiae for High-Level Friedelin via Genetic Manipulation. Front Bioeng Biotechnol 2022; 10:805429. [PMID: 35198543 PMCID: PMC8859104 DOI: 10.3389/fbioe.2022.805429] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
Friedelin, the most rearranged pentacyclic triterpene, also exhibits remarkable pharmacological and anti-insect activities. In particular, celastrol with friedelin as the skeleton, which is derived from the medicinal plant Tripterygium wilfordii, is a promising drug due to its anticancer and antiobesity activities. Although a previous study achieved friedelin production using engineered Saccharomyces cerevisiae, strains capable of producing high-level friedelin have not been stably engineered. In this study, a combined strategy was employed with integration of endogenous pathway genes into the genome and knockout of inhibiting genes by CRISPR/Cas9 technology, which successfully engineered multiple strains. After introducing an efficient TwOSC1T502E, all strains with genetic integration (tHMG1, ERG1, ERG20, ERG9, POS5, or UPC2.1) showed a 3.0∼6.8-fold increase in friedelin production compared with strain BY4741. Through further double knockout of inhibiting genes, only strains GD1 and GD3 produced higher yields. Moreover, strains GQ1 and GQ3 with quadruple mutants (bts1; rox1; ypl062w; yjl064w) displayed similar increases. Finally, the dominant strain GQ1 with TwOSC1T502E was cultured in an optimized medium in shake flasks, and the final yield of friedelin reached 63.91 ± 2.45 mg/L, which was approximately 65-fold higher than that of the wild-type strain BY4741 and 229% higher than that in ordinary SD-His-Ura medium. It was the highest titer for friedelin production to date. Our work provides a good example for triterpenoid production in microbial cell factories and lays a solid foundation for the mining, pathway analysis, and efficient production of valuable triterpenoids with friedelin as the skeleton.
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Affiliation(s)
- Hai-Yun Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Huan Zhao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Tian-Yuan Hu
- School of Pharmacy, College of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Zhou-Qian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Meng Xia
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yi-Feng Zhang
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yan Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiao-Chao Chen
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yun-Feng Luo
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jia-Wei Zhou
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Jia-Dian Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jie Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- *Correspondence: Wei Gao, ; Lu-Qi Huang,
| | - Lu-Qi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Wei Gao, ; Lu-Qi Huang,
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Yang X, Jiang X, Yan W, Huang Q, Sun H, Zhang X, Zhang Z, Ye W, Wu Y, Govers F, Liang Y. The Mevalonate Pathway Is Important for Growth, Spore Production, and the Virulence of Phytophthora sojae. Front Microbiol 2021; 12:772994. [PMID: 36338274 PMCID: PMC9635365 DOI: 10.3389/fmicb.2021.772994] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/01/2021] [Indexed: 09/29/2023] Open
Abstract
The mevalonate (MVA) pathway in eukaryotic organisms produces isoprenoids, sterols, ubiquinone, and dolichols. These molecules are vital for diverse cellular functions, ranging from signaling to membrane integrity, and from post-translational modification to energy homeostasis. However, information on the MVA pathway in Phytophthora species is limited. In this study, we identified the MVA pathway genes and reconstructed the complete pathway in Phytophthora sojae in silico. We characterized the function of the MVA pathway of P. sojae by treatment with enzyme inhibitor lovastatin, deletion of the geranylgeranyl diphosphate synthase gene (PsBTS1), and transcriptome profiling analysis. The MVA pathway is ubiquitously conserved in Phytophthora species. Under lovastatin treatment, mycelial growth, spore production, and virulence of P. sojae were inhibited but the zoospore encystment rate increased. Heterozygous mutants of PsBTS1 showed slow growth, abnormal colony characteristics, and mycelial morphology. Mutants showed decreased numbers of sporangia and oospores as well as reduced virulence. RNA sequencing analysis identified the essential genes in sporangia formation were influenced by the enzyme inhibitor lovastatin. Our findings elucidate the role of the MVA pathway in P. sojae and provide new insights into the molecular mechanisms underlying the development, reproduction, and virulence of P. sojae and possibly other oomycetes. Our results also provide potential chemical targets for management of plant Phytophthora diseases.
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Affiliation(s)
- Xinyu Yang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
- Liaoning Key Laboratory of Plant Pathology, Shenyang Agricultural University, Shenyang, China
| | - Xue Jiang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Weiqi Yan
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Qifeng Huang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Huiying Sun
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Xin Zhang
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Zhichao Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Wenwu Ye
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Yuanhua Wu
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
- Liaoning Key Laboratory of Plant Pathology, Shenyang Agricultural University, Shenyang, China
| | - Francine Govers
- Laboratory of Phytopathology, Wageningen University & Research, Wageningen, Netherlands
| | - Yue Liang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
- Liaoning Key Laboratory of Plant Pathology, Shenyang Agricultural University, Shenyang, China
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Utomo JC, Chaves FC, Bauchart P, Martin VJJ, Ro DK. Developing a Yeast Platform Strain for an Enhanced Taxadiene Biosynthesis by CRISPR/Cas9. Metabolites 2021; 11:147. [PMID: 33802586 PMCID: PMC8000486 DOI: 10.3390/metabo11030147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/24/2022] Open
Abstract
Paclitaxel is an important diterpenoid commonly used as an anticancer drug. Although the paclitaxel biosynthetic pathway has been mostly revealed, some steps remain to be elucidated. The difficulties in plant transformations and the scarcity of the precursor of paclitaxel, (+)-taxa-4(5), 11(12)-diene (taxadiene), have hindered the full comprehension of paclitaxel biochemistry and, therefore, its production by biotechnological approaches. One solution is to use the budding yeast, Saccharomyces cerevisiae, as a platform to elucidate the paclitaxel biosynthesis. As taxadiene is a diterpenoid, its common precursor, geranylgeranyl pyrophosphate (GGPP), needs to be increased in yeast. In this study, we screened various GGPP synthases (GGPPS) to find the most suitable GGPPS for taxadiene production in yeast. We also optimized the taxadiene production by increasing the flux toward the terpenoid pathway. Finally, to remove selection markers, we integrated the required genes using a CRISPR/Cas9 system in the yeast genome. Our result showed that a titer of 2.02 ± 0.40 mg/L (plasmid) and 0.41 ± 0.06 mg/L (integrated) can be achieved using these strategies. This platform strain can be used to readily test the gene candidates for microbial paclitaxel biosynthesis in the future.
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Affiliation(s)
- Joseph C. Utomo
- Department of Biological Science, University of Calgary, Calgary, AB T2N1N4, Canada;
| | - Fabio C. Chaves
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, Pelotas CEP 96010-900, Brazil;
| | - Philippe Bauchart
- Department of Biology, Centre for Applied Synthetic Biology, Concordia University, Montréal, QC H4B1R6, Canada; (P.B.); (V.J.J.M.)
| | - Vincent J. J. Martin
- Department of Biology, Centre for Applied Synthetic Biology, Concordia University, Montréal, QC H4B1R6, Canada; (P.B.); (V.J.J.M.)
| | - Dae-Kyun Ro
- Department of Biological Science, University of Calgary, Calgary, AB T2N1N4, Canada;
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Liu J, Yu Y, Zhao Y, Jiang L, Zhou Y, Huang D, Xu L. Interrelation of cholesterol‐lowering, antioxidant activity and DNA damage protection to the different solvent extracts of mulberry (
Morus alba
L.). J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.14891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Liu
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
| | - Yan Yu
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
| | - Yiping Zhao
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
| | - Liangyu Jiang
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
| | - You Zhou
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
| | - Dejian Huang
- Food Science and Technology Programme Department of Chemistry National University of Singapore Singapore Singapore
| | - Li Xu
- State Key Laboratory of Silkworm Genome Biology College of Biotechnology Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs College of Biotechnology Southwest University Chongqing China
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Jia H, Chen T, Qu J, Yao M, Xiao W, Wang Y, Li C, Yuan Y. Collaborative subcellular compartmentalization to improve GPP utilization and boost sabinene accumulation in Saccharomyces cerevisiae. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Ali F, Qanmber G, Wei Z, Yu D, Li YH, Gan L, Li F, Wang Z. Genome-wide characterization and expression analysis of geranylgeranyl diphosphate synthase genes in cotton (Gossypium spp.) in plant development and abiotic stresses. BMC Genomics 2020; 21:561. [PMID: 32799801 PMCID: PMC7430837 DOI: 10.1186/s12864-020-06970-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/03/2020] [Indexed: 11/12/2022] Open
Abstract
Background GGPP (geranylgeranyl diphosphate) is produced in the isoprenoid pathway and mediates the function of various plant metabolites, which is synthesized by GGPPS (GGPP synthases) in plants. GGPPS characterization has not been performed in any plant species except Arabidopsis thaliana. Here, we performed a complete computational and bioinformatics analysis of GGPPS and detected their transcription expression pattern in Gossypium hirsutum for the first time so that to explore their evolutionary relationship and potential functions. Finally, we unravelled evolutionary relationship, conserved sequence logos, gene duplication and potential involvement in plant development and abiotic stresses tolerance of GGPPS genes in G. hirsutum and other plant species. Results A total of 159 GGPPS genes from 18 plant species were identified and evolutionary analysis divided these GGPPS genes into five groups to indicate their divergence from a common ancestor. Further, GGPPS family genes were conserved during evolution and underwent segmental duplication. The identified 25 GhGGPPS genes showed diverse expression pattern particularly in ovule and fiber development indicating their vital and divers roles in the fiber development. Additionally, GhGGPPS genes exhibited wide range of responses when subjected to abiotic (heat, cold, NaCl and PEG) stresses and hormonal (BL, GA, IAA, SA and MeJA) treatments, indicating their potential roles in various biotic and abiotic stresses tolerance. Conclusions The GGPPS genes are evolutionary conserved and might be involve in different developmental stages and stress response. Some potential key genes (e.g. GhGGPP4, GhGGPP9, and GhGGPP15) were suggested for further study and provided valuable source for cotton breeding to improve fiber quality and resistant to various stresses.
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Affiliation(s)
- Faiza Ali
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Ghulam Qanmber
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Zhenzhen Wei
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.,Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
| | - Daoqian Yu
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.,Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
| | - Yong Hui Li
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Lei Gan
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.,Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
| | - Fuguang Li
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China. .,Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China.
| | - Zhi Wang
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China. .,Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China.
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12
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Chen H, Zhu C, Zhu M, Xiong J, Ma H, Zhuo M, Li S. High production of valencene in Saccharomyces cerevisiae through metabolic engineering. Microb Cell Fact 2019; 18:195. [PMID: 31699116 PMCID: PMC6839068 DOI: 10.1186/s12934-019-1246-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/29/2019] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The biological synthesis of high value compounds in industry through metabolically engineered microorganism factories has received increasing attention in recent years. Valencene is a high value ingredient in the flavor and fragrance industry, but the low concentration in nature and high cost of extraction limits its application. Saccharomyces cerevisiae, generally recognized as safe, is one of the most commonly used gene expression hosts. Construction of S. cerevisiae cell factory to achieve high production of valencene will be attractive. RESULTS Valencene was successfully biosynthesized after introducing valencene synthase into S. cerevisiae BJ5464. A significant increase in valencene yield was observed after down-regulation or knock-out of squalene synthesis and other inhibiting factors (such as erg9, rox1) in mevalonate (MVA) pathway using a recyclable CRISPR/Cas9 system constructed in this study through the introduction of Cre/loxP. To increase the supplement of the precursor farnesyl pyrophosphate (FPP), all the genes of FPP upstream in MVA pathway were overexpressed in yeast genome. Furthermore, valencene expression cassettes containing different promoters and terminators were compared, and PHXT7-VS-TTPI1 was found to have excellent performance in valencene production. Finally, after fed-batch fermentation in 3 L bioreactor, valencene production titer reached 539.3 mg/L with about 160-fold improvement compared to the initial titer, which is the highest reported valencene yield. CONCLUSIONS This study achieved high production of valencene in S. cerevisiae through metabolic engineering and optimization of expression cassette, providing good example of microbial overproduction of valuable chemical products. The construction of recyclable plasmid was useful for multiple gene editing as well.
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Affiliation(s)
- Hefeng Chen
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China
| | - Chaoyi Zhu
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China
| | - Muzi Zhu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, 510070, China
| | - Jinghui Xiong
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China
| | - Hao Ma
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China
| | - Min Zhuo
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China
| | - Shuang Li
- School of Biology and Biological Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, China.
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13
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Moser S, Pichler H. Identifying and engineering the ideal microbial terpenoid production host. Appl Microbiol Biotechnol 2019; 103:5501-5516. [PMID: 31129740 PMCID: PMC6597603 DOI: 10.1007/s00253-019-09892-y] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 12/11/2022]
Abstract
More than 70,000 different terpenoid structures are known so far; many of them offer highly interesting applications as pharmaceuticals, flavors and fragrances, or biofuels. Extraction of these compounds from their natural sources or chemical synthesis is-in many cases-technically challenging with low or moderate yields while wasting valuable resources. Microbial production of terpenoids offers a sustainable and environment-friendly alternative starting from simple carbon sources and, frequently, safeguards high product specificity. Here, we provide an overview on employing recombinant bacteria and yeasts for heterologous de novo production of terpenoids. Currently, Escherichia coli and Saccharomyces cerevisiae are the two best-established production hosts for terpenoids. An increasing number of studies have been successful in engineering alternative microorganisms for terpenoid biosynthesis, which we intend to highlight in this review. Moreover, we discuss the specific engineering challenges as well as recent advances for microbial production of different classes of terpenoids. Rationalizing the current stages of development for different terpenoid production hosts as well as future prospects shall provide a valuable decision basis for the selection and engineering of the cell factory(ies) for industrial production of terpenoid target molecules.
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Affiliation(s)
- Sandra Moser
- Austrian Centre of Industrial Biotechnology (acib GmbH), Petersgasse 14, 8010, Graz, Austria
- Institute of Molecular Biotechnology, NAWI Graz, BioTechMed Graz, Graz University of Technology, Petersgasse 14/2, 8010, Graz, Austria
| | - Harald Pichler
- Austrian Centre of Industrial Biotechnology (acib GmbH), Petersgasse 14, 8010, Graz, Austria.
- Institute of Molecular Biotechnology, NAWI Graz, BioTechMed Graz, Graz University of Technology, Petersgasse 14/2, 8010, Graz, Austria.
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14
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Callari R, Meier Y, Ravasio D, Heider H. Dynamic Control of ERG20 and ERG9 Expression for Improved Casbene Production in Saccharomyces cerevisiae. Front Bioeng Biotechnol 2018; 6:160. [PMID: 30443546 PMCID: PMC6221901 DOI: 10.3389/fbioe.2018.00160] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/16/2018] [Indexed: 12/14/2022] Open
Abstract
Production of plant metabolites in microbial hosts represents a promising alternative to traditional chemical-based methods. Diterpenoids are compounds with interesting applications as pharmaceuticals, fragrances and biomaterials. Casbene, in particular, serves as a precursor to many complex diterpenoids found in plants from the Euphorbiaceae family that have shown potential therapeutic effects. Here, we engineered the budding yeast Saccharomyces cerevisiae for improved biosynthesis of the diterpene casbene. We first expressed, in yeast, a geranylgeranyl diphosphate synthase from Phomopsys amygdali in order to boost the geranylgeranyl diphosphate pool inside the cells. The enzyme uses isopentenyl diphosphate and dimethylallyl diphosphate to directly generate geranylgeranyl diphosphate. When co-expressing a casbene synthase from Ricinus communis the yeast was able to produce casbene in the order of 30 mg/L. Redirecting the flux from FPP and sterols, by means of the ergosterol sensitive promoter of ERG1, allowed for plasmid-based casbene production of 81.4 mg/L. Integration of the target genes into the yeast genome, together with the replacement of the promoter regions of ERG20 and ERG9 with combinations of ergosterol- and glucose-sensitive promoters, generated a titer of 108.5 mg/L of casbene. We here succeeded to engineer an improved route for geranylgeranyl diphosphate synthesis in yeast. Furthermore, we showed that the concurrent dynamic control of ERG20 and ERG9 expression, using ergosterol and carbon source regulation mechanisms, could substantially improve diterpene titer. Our approach will pave the way for a more sustainable production of GGPP- and casbene-derived products.
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15
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Lisnyansky M, Kapelushnik N, Ben-Bassat A, Marom M, Loewenstein A, Khananshvili D, Giladi M, Haitin Y. Reduced Activity of Geranylgeranyl Diphosphate Synthase Mutant Is Involved in Bisphosphonate-Induced Atypical Fractures. Mol Pharmacol 2018; 94:1391-1400. [PMID: 30275041 DOI: 10.1124/mol.118.113670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 09/26/2018] [Indexed: 11/22/2022] Open
Abstract
Bisphosphonates are widely used for treating osteoporosis, a common disorder in which bone strength is reduced, increasing the risk for fractures. Rarely, bisphosphonates can paradoxically lead to atypical fractures occurring spontaneously or with trivial trauma. Recently, a novel missense mutation (D188Y) in the GGPS1 gene, encoding for geranylgeranyl diphosphate synthase (GGPPS), was associated with bisphosphonate-induced atypical fractures. However, the molecular basis for GGPPS involvement in this devastating condition remains elusive. Here, we show that while maintaining an overall unperturbed global enzyme structure, the D188Y mutation leads to ∼4-fold catalytic activity decrease. Furthermore, GGPPS-D188Y is unable to support cross-species complementation, highlighting the functional significance of the reduced catalytic activity observed in vitro. We next determined the crystal structure of apo-GGPPS-D188Y, revealing that while Y188 does not alter the protein fold, its bulky side chain sterically interferes with substrate binding. In agreement, we show that GGPPS-D188Y exhibits ∼3-fold reduction in the binding affinity of zoledronate, a commonly used bisphosphonate. However, inhibition of the mutated enzyme by zoledronate, in pharmacologically relevant concentrations, is maintained. Finally, we determined the crystal structure of zoledronate-bound GGPPS-D188Y, revealing large ligand-induced binding pocket rearrangements, revising the previous model for GGPPS-bisphosphonate interactions. In conclusion, we propose that among heterozygotes residual GGPPS activity is sufficient to support physiologic cellular function, concealing any pathologic phenotype. However, under bisphosphonate treatment, GGPPS activity is reduced below a crucial threshold for osteoclast function, leading to impaired bone remodeling and increased susceptibility to atypical fractures.
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Affiliation(s)
- Michal Lisnyansky
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Noa Kapelushnik
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Ariel Ben-Bassat
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Milit Marom
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Anat Loewenstein
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Daniel Khananshvili
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Moshe Giladi
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
| | - Yoni Haitin
- Department of Physiology and Pharmacology (M.L., A.B.-B., M.M., D.K., M.G., Y.H.), Sackler Faculty of Medicine (N.K., A.L.), Tel Aviv University, Tel Aviv, Israel; and Division of Ophthalmology (A.L.), Tel Aviv Sourasky Medical Center (M.G.), Tel Aviv, Israel
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16
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Wangeline MA, Hampton RY. "Mallostery"-ligand-dependent protein misfolding enables physiological regulation by ERAD. J Biol Chem 2018; 293:14937-14950. [PMID: 30018140 DOI: 10.1074/jbc.ra118.001808] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 06/06/2018] [Indexed: 12/19/2022] Open
Abstract
HMG-CoA reductase (HMGR) undergoes regulated degradation as part of feedback control of the sterol pathway. In yeast, the stability of the HMGR isozyme Hmg2 is controlled by the 20-carbon isoprenoid geranylgeranyl pyrophosphate (GGPP). Increasing GGPP levels cause more efficient degradation by the HMG-CoA reductase degradation (HRD) pathway, allowing for feedback regulation of HMGR. The HRD pathway is critical for the endoplasmic reticulum (ER)-associated degradation (ERAD) of misfolded ER proteins. Here, we have explored GGPP's role in HRD-dependent Hmg2 degradation. We found that GGPP potently regulates Hmg2 levels in vivo and causes reversible Hmg2 misfolding at nanomolar concentrations in vitro These GGPP-mediated effects were absent in several stabilized or nonregulated Hmg2 mutants. Consistent with its high potency, GGPP's effects were highly specific such that other structurally related molecules were ineffective in altering Hmg2 structure. For instance, two closely related GGPP analogues, 2F-GGPP and GGSPP, were completely inactive at all concentrations tested. Furthermore, GGSPP antagonized GGPP's effects in vivo and in vitro Chemical chaperones reversed GGPP's effects on Hmg2 structure and degradation, suggesting that GGPP causes selective Hmg2 misfolding. These results indicate that GGPP functions in a manner similar to an allosteric ligand, causing Hmg2 misfolding through interaction with a reversible, specific binding site. Consistent with this, the Hmg2 protein formed multimers, typical of allosteric proteins. We propose that this "allosteric misfolding," or mallostery, observed here for Hmg2 may be a widely used tactic of biological regulation with potential for development of therapeutic small molecules that induce selective misfolding.
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Affiliation(s)
- Margaret A Wangeline
- From the Division of Biological Sciences, the Section of Cell and Developmental Biology, University of California San Diego, La Jolla, California 92093
| | - Randolph Y Hampton
- From the Division of Biological Sciences, the Section of Cell and Developmental Biology, University of California San Diego, La Jolla, California 92093
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17
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Schwarz PN, Roller L, Kulik A, Wohlleben W, Stegmann E. Engineering metabolic pathways in Amycolatopsis japonicum for the optimization of the precursor supply for heterologous brasilicardin congeners production. Synth Syst Biotechnol 2018; 3:56-63. [PMID: 29911199 PMCID: PMC5884276 DOI: 10.1016/j.synbio.2017.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/06/2017] [Accepted: 12/22/2017] [Indexed: 02/08/2023] Open
Abstract
The isoprenoid brasilicardin A is a promising immunosuppressant compound with a unique mode of action, high potency and reduced toxicity compared to today's standard drugs. However, production of brasilicardin has been hampered since the producer strain Nocardia terpenica IFM0406 synthesizes brasilicardin in only low amounts and is a biosafety level 2 organism. Previously, we were able to heterologously express the brasilicardin gene cluster in the nocardioform actinomycete Amycolatopsis japonicum. Four brasilicardin congeners, intermediates of the BraA biosynthesis, were produced. Since chemical synthesis of the brasilicardin core structure has remained elusive we intended to produce high amounts of the brasilicardin backbone for semi synthesis and derivatization. Therefore, we used a metabolic engineering approach to increase heterologous production of brasilicardin in A. japonicum. Simultaneous heterologous expression of genes encoding the MVA pathway and expression of diterpenoid specific prenyltransferases were used to increase the provision of the isoprenoid precursor isopentenyl diphosphate (IPP) and to channel the precursor into the direction of diterpenoid biosynthesis. Both approaches contributed to an elevated heterologous production of the brasilicardin backbone, which can now be used as a starting point for semi synthesis of new brasilicardin congeners with better properties.
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Key Words
- 3HBA, 3-hydroxy-benzoate
- Aact, acetoacetyl CoA thiolase
- BraA, brasilicardin A
- BraB, brasilicardin B
- BraC, brasilicardin C
- BraC-agl, brasilicardin C aglycon
- BraD, brasilicardin D
- BraD-agl, brasilicardin D aglycon
- DMAPP, dimethylallyl diphosphate
- FPP, farnesyl diphosphate
- Fpps, farnesyl diphosphate synthase
- GGPP, geranylgeranyl diphosphate
- GPP, geranyl diphosphate
- Ggpps, geranylgeranyl diphosphate synthase
- GlcNAc, N-acetylglucosamine
- Gpps, geranyl diphosphate synthase
- IPP, isopentenyl diphosphate
- Idi, isopentenyl diphosphate synthase
- Isoprenoids
- MEP, Methylerythritol 4-phosphate
- MVA, mevalonate
- Mevalonate pathway
- Norcardia terpenica IFM0406
- Prenyltransferases
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Affiliation(s)
- Paul N Schwarz
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Luisa Roller
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Andreas Kulik
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Wolfgang Wohlleben
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Evi Stegmann
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
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18
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Exogenous and endogenous increase in fungal GGPP increased fungal Taxol production. Appl Microbiol Biotechnol 2017; 101:7523-7533. [DOI: 10.1007/s00253-017-8509-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/16/2017] [Accepted: 09/02/2017] [Indexed: 11/26/2022]
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19
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Mitochondrial acetyl-CoA utilization pathway for terpenoid productions. Metab Eng 2016; 38:303-309. [PMID: 27471067 DOI: 10.1016/j.ymben.2016.07.008] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/25/2016] [Accepted: 07/25/2016] [Indexed: 12/26/2022]
Abstract
Acetyl-CoA is a central molecule in the metabolism of the cell, which is also a precursor molecule to a variety of value-added products such as terpenoids and fatty acid derived molecules. Considering subcellular compartmentalization of metabolic pathways allows higher concentrations of enzymes, substrates and intermediates, and bypasses competing pathways, mitochondrion-compartmentalized acetyl-CoA utilization pathways might offer better pathway activities with improved product yields. As a proof-of-concept, we sought to explore a mitochondrial farnesyl pyrophosphate (FPP) biosynthetic pathway for the biosynthesis of amorpha-4,11-diene in budding yeast. In the present study, the eight-gene FPP biosynthetic pathway was successfully expressed inside yeast mitochondria to enable high-level amorpha-4,11-diene production. In addition, we also found the mitochondrial compartment serves as a partial barrier for the translocation of FPP from mitochondria into the cytosol, which would potentially allow minimized loss of FPP to cytosolic competing pathways. To our best knowledge, this is the first report to harness yeast mitochondria for terpenoid productions from the mitochondrial acetyl-CoA pool. We envision subcellular metabolic engineering might also be employed for an efficient production of other bio-products from the mitochondrial acetyl-CoA in other eukaryotic organisms.
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Wadhwa M, Bachhawat A. A genetic screen for increasing metabolic flux in the isoprenoid pathway of Saccharomyces cerevisiae: Isolation of SPT15 mutants using the screen. Metab Eng Commun 2016; 3:164-172. [PMID: 29468122 PMCID: PMC5779727 DOI: 10.1016/j.meteno.2016.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 01/17/2023] Open
Abstract
A genetic screen to identify mutants that can increase flux in the isoprenoid pathway of yeast has been lacking. We describe a carotenoid-based visual screen built with the core carotenogenic enzymes from the red yeast Rhodosporidium toruloides. Enzymes from this yeast displayed the required, higher capacity in the carotenoid pathway. The development also included the identification of the metabolic bottlenecks, primarily phytoene dehydrogenase, that was subjected to a directed evolution strategy to yield more active mutants. To further limit phytoene pools, a less efficient version of GGPP synthase was employed. The screen was validated with a known flux increasing gene, tHMG1. New mutants in the TATA binding protein SPT15 were isolated using this screen that increased the yield of carotenoids, and an alternate isoprenoid, α-Farnesene confirming increase in overall flux. The findings indicate the presence of previously unknown links to the isoprenoid pathway that can be uncovered using this screen.
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Pries V, Cotesta S, Riedl R, Aust T, Schuierer S, Tao J, Filipuzzi I, Hoepfner D. Advantages and Challenges of Phenotypic Screens. ACTA ACUST UNITED AC 2015; 21:306-15. [DOI: 10.1177/1087057115610488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/16/2015] [Indexed: 11/15/2022]
Abstract
Phenotypic screens are effective starting points to identify compounds with desirable activities. To find novel antifungals, we conducted a phenotypic screen in Saccharomyces cerevisiae and identified two discrete scaffolds with good growth inhibitory characteristics. Lack of broad-spectrum activity against pathogenic fungi called for directed chemical compound optimization requiring knowledge of the molecular target. Chemogenomic profiling identified effects on geranylgeranyltransferase I (GGTase I), an essential enzyme that prenylates proteins involved in cell signaling, such as Cdc42p and Rho1p. Selection of resistant mutants against both compounds confirmed the target hypothesis and enabled mapping of the compound binding site to the substrate binding pocket. Differential resistance-conferring mutations and selective substrate competition demonstrate distinct binding modes for the two chemotypes. Exchange of the S. cerevisiae GGTase I subunits with those of Candida albicans resulted in an absence of growth inhibition for both compounds, thus confirming the identified target as well as the narrow antifungal spectrum of activity. This prenylation pathway is reported to be nonessential in pathogenic species and challenges the therapeutic value of these leads while demonstrating the importance of an integrated target identification platform following a phenotypic screen.
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Affiliation(s)
- Verena Pries
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Simona Cotesta
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Ralph Riedl
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Thomas Aust
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Sven Schuierer
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Jianshi Tao
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Ireos Filipuzzi
- Novartis Institutes for BioMedical Research, Basel, Switzerland
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Genome-scale genetic screen of lead ion-sensitive gene deletion mutations in Saccharomyces cerevisiae. Gene 2015; 563:155-9. [PMID: 25773006 DOI: 10.1016/j.gene.2015.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 12/31/2014] [Accepted: 03/11/2015] [Indexed: 11/22/2022]
Abstract
Pb (lead) is one of the most widespread and toxic heavy metal contaminants and imposes potential harm to human health. Pb ions cause cellular damage and induce loss of cell viability. However, mechanisms regulating Pb toxicity remain poorly understood. Through a genome-scale screen, we have identified 30 yeast single-gene deletion mutants that are sensitive to lead ions. These genes are involved in the metabolism, transcription, protein synthesis, cell cycle and DNA processing, protein folding, modification, destination, as well as cellular transport process. Comparative analyses to cadmium-sensitive mutations identified from previous studies indicate that overlapping genes of lead- and cadmium-sensitive mutations are involved in both the metabolism and the cellular transport process. Furthermore, eleven lead-sensitive mutants show elevated levels of lead contents in response to lead stress. Our findings provide a basis to understand molecular mechanisms underlying the detoxification of lead ions by yeast cells.
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Ye L, Xie W, Zhou P, Yu H. Biotechnological Production of Astaxanthin through Metabolic Engineering of Yeasts. CHEMBIOENG REVIEWS 2015. [DOI: 10.1002/cben.201400023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Jakočiūnas T, Bonde I, Herrgård M, Harrison SJ, Kristensen M, Pedersen LE, Jensen MK, Keasling JD. Multiplex metabolic pathway engineering using CRISPR/Cas9 in Saccharomyces cerevisiae. Metab Eng 2015; 28:213-222. [PMID: 25638686 DOI: 10.1016/j.ymben.2015.01.008] [Citation(s) in RCA: 274] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/13/2014] [Accepted: 01/20/2015] [Indexed: 12/26/2022]
Abstract
CRISPR/Cas9 is a simple and efficient tool for targeted and marker-free genome engineering. Here, we report the development and successful application of a multiplex CRISPR/Cas9 system for genome engineering of up to 5 different genomic loci in one transformation step in baker's yeast Saccharomyces cerevisiae. To assess the specificity of the tool we employed genome re-sequencing to screen for off-target sites in all single knock-out strains targeted by different gRNAs. This extensive analysis identified no more genome variants in CRISPR/Cas9 engineered strains compared to wild-type reference strains. We applied our genome engineering tool for an exploratory analysis of all possible single, double, triple, quadruple and quintuple gene disruption combinations to search for strains with high mevalonate production, a key intermediate for the industrially important isoprenoid biosynthesis pathway. Even though we did not overexpress any genes in the mevalonate pathway, this analysis identified strains with mevalonate titers greater than 41-fold compared to the wild-type strain. Our findings illustrate the applicability of this highly specific and efficient multiplex genome engineering approach to accelerate functional genomics and metabolic engineering efforts.
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Affiliation(s)
- Tadas Jakočiūnas
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Ida Bonde
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Markus Herrgård
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Scott J Harrison
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Mette Kristensen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Lasse E Pedersen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Michael K Jensen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark.
| | - Jay D Keasling
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Denmark; Joint BioEnergy Institute, Emeryville, CA, USA; Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; Department of Chemical and Biomolecular Engineering & Department of Bioengineering University of California, Berkeley, CA, USA.
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Biosynthesis of Taxadiene in Saccharomyces cerevisiae : selection of geranylgeranyl diphosphate synthase directed by a computer-aided docking strategy. PLoS One 2014; 9:e109348. [PMID: 25295588 PMCID: PMC4190181 DOI: 10.1371/journal.pone.0109348] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 09/05/2014] [Indexed: 12/15/2022] Open
Abstract
Identification of efficient key enzymes in biosynthesis pathway and optimization of the fitness between functional modules and chassis are important for improving the production of target compounds. In this study, the taxadiene biosynthesis pathway was firstly constructed in yeast by transforming ts gene and overexpressing erg20 and thmgr. Then, the catalytic capabilities of six different geranylgeranyl diphosphate synthases (GGPPS), the key enzyme in mevalonic acid (MVA) pathway catalyzing famesyl diphosphate (FPP) to geranylgeranyl diphosphate (GGPP), were predicted using enzyme-substrate docking strategy. GGPPSs from Taxus baccata x Taxus cuspidate (GGPPSbc), Erwinia herbicola (GGPPSeh), and S. cerevisiae (GGPPSsc) which ranked 1st, 4th and 6th in docking with FPP were selected for construction. The experimental results were consistent with the computer prediction that the engineered yeast with GGPPSbc exhibited the highest production. In addition, two chassis YSG50 and W303-1A were chosen, and the titer of taxadiene reached 72.8 mg/L in chassis YSG50 with GGPPSbc. Metabolomic study revealed that the contents of tricarboxylic acid cycle (TCA) intermediates and their precursor amino acids in chassis YSG50 was lower than those in W303-1A, indicating less carbon flux was divided into TCA cycle. Furthermore, the levels of TCA intermediates in the taxadiene producing yeasts were lower than those in chassis YSG50. Thus, it may result in more carbon flux in MVA pathway in chassis YSG50, which suggested that YSG50 was more suitable for engineering the taxadiene producing yeast. These results indicated that computer-aided protein modeling directed isoenzyme selection strategy and metabolomic study could guide the rational design of terpenes biosynthetic cells.
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Abstract
Despite a century of control and eradication campaigns, malaria remains one of the world's most devastating diseases. Our once-powerful therapeutic weapons are losing the war against the Plasmodium parasite, whose ability to rapidly develop and spread drug resistance hamper past and present malaria-control efforts. Finding new and effective treatments for malaria is now a top global health priority, fuelling an increase in funding and promoting open-source collaborations between researchers and pharmaceutical consortia around the world. The result of this is rapid advances in drug discovery approaches and technologies, with three major methods for antimalarial drug development emerging: (i) chemistry-based, (ii) target-based, and (iii) cell-based. Common to all three of these approaches is the unique ability of structural biology to inform and accelerate drug development. Where possible, SBDD (structure-based drug discovery) is a foundation for antimalarial drug development programmes, and has been invaluable to the development of a number of current pre-clinical and clinical candidates. However, as we expand our understanding of the malarial life cycle and mechanisms of resistance development, SBDD as a field must continue to evolve in order to develop compounds that adhere to the ideal characteristics for novel antimalarial therapeutics and to avoid high attrition rates pre- and post-clinic. In the present review, we aim to examine the contribution that SBDD has made to current antimalarial drug development efforts, covering hit discovery to lead optimization and prevention of parasite resistance. Finally, the potential for structural biology, particularly high-throughput structural genomics programmes, to identify future targets for drug discovery are discussed.
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Alcaíno J, Romero I, Niklitschek M, Sepúlveda D, Rojas MC, Baeza M, Cifuentes V. Functional characterization of the Xanthophyllomyces dendrorhous farnesyl pyrophosphate synthase and geranylgeranyl pyrophosphate synthase encoding genes that are involved in the synthesis of isoprenoid precursors. PLoS One 2014; 9:e96626. [PMID: 24796858 PMCID: PMC4010515 DOI: 10.1371/journal.pone.0096626] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 04/09/2014] [Indexed: 12/21/2022] Open
Abstract
The yeast Xanthophyllomyces dendrorhous synthesizes the carotenoid astaxanthin, which has applications in biotechnology because of its antioxidant and pigmentation properties. However, wild-type strains produce too low amounts of carotenoids to be industrially competitive. Considering this background, it is indispensable to understand how the synthesis of astaxanthin is controlled and regulated in this yeast. In this work, the steps leading to the synthesis of the carotenoid precursor geranylgeranyl pyrophosphate (GGPP, C20) in X. dendrorhous from isopentenyl pyrophosphate (IPP, C5) and dimethylallyl pyrophosphate (DMAPP, C5) was characterized. Two prenyl transferase encoding genes, FPS and crtE, were expressed in E. coli. The enzymatic assays using recombinant E. coli protein extracts demonstrated that FPS and crtE encode a farnesyl pyrophosphate (FPP, C15) synthase and a GGPP-synthase, respectively. X. dendrorhous FPP-synthase produces geranyl pyrophosphate (GPP, C10) from IPP and DMAPP and FPP from IPP and GPP, while the X. dendrorhous GGPP-synthase utilizes only FPP and IPP as substrates to produce GGPP. Additionally, the FPS and crtE genes were over-expressed in X. dendrorhous, resulting in an increase of the total carotenoid production. Because the parental strain is diploid, the deletion of one of the alleles of these genes did not affect the total carotenoid production, but the composition was significantly altered. These results suggest that the over-expression of these genes might provoke a higher carbon flux towards carotenogenesis, most likely involving an earlier formation of a carotenogenic enzyme complex. Conversely, the lower carbon flux towards carotenogenesis in the deletion mutants might delay or lead to a partial formation of a carotenogenic enzyme complex, which could explain the accumulation of astaxanthin carotenoid precursors in these mutants. In conclusion, the FPS and the crtE genes represent good candidates to manipulate to favor carotenoid biosynthesis in X. dendrorhous.
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Affiliation(s)
- Jennifer Alcaíno
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Ignacio Romero
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Mauricio Niklitschek
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Dionisia Sepúlveda
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - María Cecilia Rojas
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Marcelo Baeza
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Víctor Cifuentes
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Affiliation(s)
| | - Salim Al-Babili
- BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Eleanore T. Wurtzel
- The Graduate School and University Center, The City University of New York, New York, New York, USA
- Department of Biological Sciences, Lehman College, The City University of New York, Bronx, New York, USA
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Liu C, Sun Z, Shen S, Lin L, Li T, Tian B, Hua Y. Identification and characterization of the geranylgeranyl diphosphate synthase in Deinococcus radiodurans. Lett Appl Microbiol 2013; 58:219-24. [PMID: 24151908 DOI: 10.1111/lam.12181] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/12/2013] [Accepted: 10/12/2013] [Indexed: 11/30/2022]
Abstract
UNLABELLED Deinococcus radiodurans strain R1 utilizes multiple antioxidants including a unique carotenoid, deinoxanthin, to fight again oxidative stress. Most of the enzymes involved in the deinoxanthin biosynthetic pathway have been identified. However, the enzyme catalysing the synthesis of geranylgeranyl diphosphate (GGPP), which is a precursor of carotenoid biosynthesis, has yet to be identified. Two putative isoprenyl diphosphate synthases (IPPS) homologues (DR1395 and DR932) were screened out by analysis of conserved amino acid regions, and their biochemical functions were investigated. Gene mutation, gene expression in Escherichia coli and analysis of carotenoid products were used to investigate the functions of these candidates. The results suggested that DR1395 encodes the protein for GGPP synthesis. Site-directed mutant analysis indicated that the amino acid composition of and around the first aspartate-rich motif is vital for GGPP synthase function. SIGNIFICANCE AND IMPACT OF THE STUDY Deinococcus radiodurans strain R1 produces a unique carotenoid product, deinoxanthin, as an antioxidant. In this study, DR1395 was identified as the gene encoding geranylgeranyl diphosphate synthase (GGPPS) for entrance to deinoxanthin biosynthesis in D. radiodurans. Moreover, site-directed mutagenesis studies on DR1395 identified the effect of amino acid composition of the aspartate-rich motif on the production of this carotenoid. This study demonstrated the entrance step in the deinoxanthin biosynthetic pathway. These results can be useful in genetic engineering strategies for deinoxanthin production including enhancement of GGPPS gene expression in D. radiodurans.
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Affiliation(s)
- C Liu
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University, Hangzhou, China
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Chen SH, Lin SW, Lin SR, Liang PH, Yang JM. Moiety-linkage map reveals selective nonbisphosphonate inhibitors of human geranylgeranyl diphosphate synthase. J Chem Inf Model 2013; 53:2299-311. [PMID: 23919676 DOI: 10.1021/ci400227r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Bisphosphonates are potent inhibitors of farnesyl pyrophosphate synthase (FPPS) and geranylgeranyl diphosphate synthase (GGPPS). Current bisphosphonate drugs (e.g., Fosamax and Zometa) are highly efficacious in the treatment of bone diseases such as osteoporosis, Paget's disease, and tumor-induced osteolysis, but they are often less potent in blood and soft-tissue due to their phosphate moieties. The discovery of nonbisphosphonate inhibitors of FPPS and/or GGPPS for the treatment of bone diseases and cancers is, therefore, a current goal. Here, we propose a moiety-linkage-based method, combining a site-moiety map with chemical structure rules (CSRs), to discover nonbisphosphonate inhibitors from thousands of commercially available compounds and known crystal structures. Our moiety-linkage map reveals the binding mechanisms and inhibitory efficacies of 51 human GGPPS (hGGPPS) inhibitors. To the best of our knowledge, we are the first team to discover two novel selective nonbisphosphonate inhibitors, which bind to the inhibitory site of hGGPPS, using CSRs and site-moiety maps. These two compounds can be considered as a novel lead for the potent inhibitors of hGGPPS for the treatment of cancers and mevalonate-pathway diseases. Moreover, based on our moiety-linkage map, we identified two key residues of hGGPPS, K202, and K212, which play an important role for the inhibitory effect of zoledronate (IC50 = 3.4 μM and 2.4 μM, respectively). This result suggests that our method can discover specific hGGPPS inhibitors across multiple prenyltransferases. These results show that the compounds that highly fit our moiety-linkage map often inhibit hGGPPS activity and induce tumor cell apoptosis. We believe that our method is useful for discovering potential inhibitors and binding mechanisms for pharmaceutical targets.
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Affiliation(s)
- Shih-Hsun Chen
- Department of Biological Science and Technology, National Chiao Tung University , Hsinchu 30050, Taiwan
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31
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Chang CK, Teng KH, Lin SW, Chang TH, Liang PH. Control activity of yeast geranylgeranyl diphosphate synthase from dimer interface through H-bonds and hydrophobic interaction. Biochemistry 2013; 52:2783-92. [PMID: 23534508 DOI: 10.1021/bi4001276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Previously we showed that yeast geranylgeranyl diphosphate synthase (GGPPS) becomes an inactive monomer when the first N-terminal helix involved in dimerization is deleted. This raises questions regarding why dimerization is required for GGPPS activity and which amino acids in the dimer interface are essential for dimerization-mediated activity. According to the GGPPS crystal structure, three amino acids (N101, N104, and Y105) located in the helix F of one subunit are near the active site of the other subunit. As presented here, when these residues were replaced individually with Ala caused insignificant activity changes, N101A/Y105A and N101A/N104A but not N104A/Y105A showed remarkably decreased k(cat) values (200-250-fold). The triple mutant N101A/N104A/Y105A displayed no detectable activity, although dimer was retained in these mutants. Because N101 and Y105 form H-bonds with H139 and R140 in the other subunit, respectively, we generated H139A/R140A double mutant and found it was inactive and became monomeric. Therefore, the multiple mutations apparently influence the integrity of the catalytic site due to the missing H-bonding network. Moreover, Met111, also on the highly conserved helix F, was necessary for dimer formation and enzyme activity. When Met111 was replaced with Glu, the negative-charged repulsion converted half of the dimer into a monomer. In conclusion, the H-bonds mainly through N101 for maintaining substrate binding stability and the hydrophobic interaction of M111 in dimer interface are essential for activity of yeast GGPPS.
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Affiliation(s)
- Chih-Kang Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
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Sun J, Sun XX, Tang PW, Yuan QP. Molecular cloning and functional expression of two key carotene synthetic genes derived from Blakeslea trispora into E. coli for increased β-carotene production. Biotechnol Lett 2012; 34:2077-82. [PMID: 22798040 DOI: 10.1007/s10529-012-1004-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 06/28/2012] [Indexed: 10/28/2022]
Abstract
Blakeslea trispora is used commercially to produce β-carotene. Isopentenyl pyrophosphate isomerase (IPI) and geranylgeranyl pyrophosphate synthase (GGPS) are key enzymes in the biosynthesis of carotenoids. The cDNAs of genes ipi and carG were cloned from the fungus and expressed in Escherichia coli. Greater GGPS activity was needed in the engineered E. coli when IPP activity was increased. The introduction of GGPS and IPI increased the β-carotene content in E. coli from 0.5 to 0.95 mg/g dry wt.
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Affiliation(s)
- Jie Sun
- State Key Laboratory of Chemical Resource Engineering, College of Life Science & Technology, Beijing University of Chemical Technology, Beijing, China.
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Construction of new Pichia pastoris X-33 strains for production of lycopene and β-carotene. Appl Microbiol Biotechnol 2011; 93:2483-92. [DOI: 10.1007/s00253-011-3764-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 11/12/2011] [Accepted: 11/14/2011] [Indexed: 10/14/2022]
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Farhi M, Marhevka E, Masci T, Marcos E, Eyal Y, Ovadis M, Abeliovich H, Vainstein A. Harnessing yeast subcellular compartments for the production of plant terpenoids. Metab Eng 2011; 13:474-81. [PMID: 21601648 DOI: 10.1016/j.ymben.2011.05.001] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Revised: 05/08/2011] [Accepted: 05/10/2011] [Indexed: 01/29/2023]
Abstract
The biologically and commercially important terpenoids are a large and diverse class of natural products that are targets of metabolic engineering. However, in the context of metabolic engineering, the otherwise well-documented spatial subcellular arrangement of metabolic enzyme complexes has been largely overlooked. To boost production of plant sesquiterpenes in yeast, we enhanced flux in the mevalonic acid pathway toward farnesyl diphosphate (FDP) accumulation, and evaluated the possibility of harnessing the mitochondria as an alternative to the cytosol for metabolic engineering. Overall, we achieved 8- and 20-fold improvement in the production of valencene and amorphadiene, respectively, in yeast co-engineered with a truncated and deregulated HMG1, mitochondrion-targeted heterologous FDP synthase and a mitochondrion-targeted sesquiterpene synthase, i.e. valencene or amorphadiene synthase. The prospect of harnessing different subcellular compartments opens new and intriguing possibilities for the metabolic engineering of pathways leading to valuable natural compounds.
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Affiliation(s)
- Moran Farhi
- Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
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Production of geranylgeraniol on overexpression of a prenyl diphosphate synthase fusion gene in Saccharomyces cerevisiae. Appl Microbiol Biotechnol 2010; 87:1327-34. [DOI: 10.1007/s00253-010-2571-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Revised: 03/12/2010] [Accepted: 03/18/2010] [Indexed: 11/27/2022]
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Garza RM, Tran PN, Hampton RY. Geranylgeranyl pyrophosphate is a potent regulator of HRD-dependent 3-Hydroxy-3-methylglutaryl-CoA reductase degradation in yeast. J Biol Chem 2009; 284:35368-80. [PMID: 19776008 PMCID: PMC2790966 DOI: 10.1074/jbc.m109.023994] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 09/18/2009] [Indexed: 11/06/2022] Open
Abstract
3-Hydroxy-3-methylglutaryl (HMG)-CoA reductase (HMGR), the rate-limiting enzymes of sterol synthesis, undergoes feedback-regulated endoplasmic reticulum degradation in both mammals and yeast. The yeast Hmg2p isozyme is subject to ubiquitin-mediated endoplasmic reticulum degradation by the HRD pathway. We had previously shown that alterations in cellular levels of the 15-carbon sterol pathway intermediate farnesyl pyrophosphate (FPP) cause increased Hmg2p ubiquitination and degradation. We now present evidence that the FPP-derived, 20-carbon molecule geranylgeranyl pyrophosphate (GGPP) is a potent endogenous regulator of Hmg2p degradation. This work was launched by the unexpected observation that GGPP addition directly to living yeast cultures caused high potency and specific stimulation of Hmg2p degradation. This effect of GGPP was not recapitulated by FPP, GGOH, or related isoprenoids. GGPP-caused Hmg2p degradation met all the criteria for the previously characterized endogenous signal. The action of added GGPP did not require production of endogenous sterol molecules, indicating that it did not act by causing the build-up of an endogenous pathway signal. Manipulation of endogenous GGPP by several means showed that naturally made GGPP controls Hmg2p stability. Analysis of the action of GGPP indicated that the molecule works upstream of retrotranslocation and can directly alter the structure of Hmg2p. We propose that GGPP is the FPP-derived regulator of Hmg2p ubiquitination. Intriguingly, the sterol-dependent degradation of mammalian HMGR is similarly stimulated by the addition of GGOH to intact cells, implying that a dependence on 20-carbon geranylgeranyl signals may be a common conserved feature of HMGR regulation that may lead to highly specific therapeutic approaches for modulation of HMGR.
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Affiliation(s)
- Renee M. Garza
- From the Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, California 92093-0347
| | - Peter N. Tran
- From the Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, California 92093-0347
| | - Randolph Y. Hampton
- From the Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, California 92093-0347
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Vandermoten S, Haubruge E, Cusson M. New insights into short-chain prenyltransferases: structural features, evolutionary history and potential for selective inhibition. Cell Mol Life Sci 2009; 66:3685-95. [PMID: 19633972 PMCID: PMC11115643 DOI: 10.1007/s00018-009-0100-9] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 06/28/2009] [Accepted: 07/07/2009] [Indexed: 10/20/2022]
Abstract
Isoprenoids form an extensive group of natural products involved in a number of important biological processes. Their biosynthesis proceeds through sequential 1'-4 condensations of isopentenyl diphosphate (C5) with an allylic acceptor, the first of which is dimethylallyl diphosphate (C5). The reactions leading to the production of geranyl diphosphate (C10), farnesyl diphosphate (C15) and geranylgeranyl diphosphate (C20), which are the precursors of mono-, sesqui- and diterpenes, respectively, are catalyzed by a group of highly conserved enzymes known as short-chain isoprenyl diphosphate synthases, or prenyltransferases. In recent years, the sequences of many new prenyltransferases have become available, including those of several plant and animal geranyl diphosphate synthases, revealing novel mechanisms of product chain-length selectivity and an intricate evolutionary path from a putative common ancestor. Finally, there is considerable interest in designing inhibitors specific to short-chain prenyltransferases, for the purpose of developing new drugs or pesticides that target the isoprenoid biosynthetic pathway.
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Affiliation(s)
- Sophie Vandermoten
- Department of Functional and Evolutionary Entomology, Gembloux Agricultural University, Passage des Déportés 2, 5030 Gembloux, Belgium.
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Overproduction of geranylgeraniol by metabolically engineered Saccharomyces cerevisiae. Appl Environ Microbiol 2009; 75:5536-43. [PMID: 19592534 DOI: 10.1128/aem.00277-09] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
(E, E, E)-Geranylgeraniol (GGOH) is a valuable starting material for perfumes and pharmaceutical products. In the yeast Saccharomyces cerevisiae, GGOH is synthesized from the end products of the mevalonate pathway through the sequential reactions of farnesyl diphosphate synthetase (encoded by the ERG20 gene), geranylgeranyl diphosphate synthase (the BTS1 gene), and some endogenous phosphatases. We demonstrated that overexpression of the diacylglycerol diphosphate phosphatase (DPP1) gene could promote GGOH production. We also found that overexpression of a BTS1-DPP1 fusion gene was more efficient for producing GGOH than coexpression of these genes separately. Overexpression of the hydroxymethylglutaryl-coenzyme A reductase (HMG1) gene, which encodes the major rate-limiting enzyme of the mevalonate pathway, resulted in overproduction of squalene (191.9 mg liter(-1)) rather than GGOH (0.2 mg liter(-1)) in test tube cultures. Coexpression of the BTS1-DPP1 fusion gene along with the HMG1 gene partially redirected the metabolic flux from squalene to GGOH. Additional expression of a BTS1-ERG20 fusion gene resulted in an almost complete shift of the flux to GGOH production (228.8 mg liter(-1) GGOH and 6.5 mg liter(-1) squalene). Finally, we constructed a diploid prototrophic strain coexpressing the HMG1, BTS1-DPP1, and BTS1-ERG20 genes from multicopy integration vectors. This strain attained 3.31 g liter(-1) GGOH production in a 10-liter jar fermentor with gradual feeding of a mixed glucose and ethanol solution. The use of bifunctional fusion genes such as the BTS1-DPP1 and ERG20-BTS1 genes that code sequential enzymes in the metabolic pathway was an effective method for metabolic engineering.
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Lo CH, Chang YH, Wright JD, Chen SH, Kan D, Lim C, Liang PH. Combined experimental and theoretical study of long-range interactions modulating dimerization and activity of yeast geranylgeranyl diphosphate synthase. J Am Chem Soc 2009; 131:4051-62. [PMID: 19245203 DOI: 10.1021/ja808699c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present here how two amino acid residues in the first helix distal from the main dimer interface modulate the dimerization and activity of a geranylgeranyl diphosphate synthase (GGPPs). The enzyme catalyzes condensation of farnesyl diphosphate and isopentenyl diphosphate to generate a C(20) product as a precursor for chlorophylls, carotenoids, and geranylgeranylated proteins. The 3D structure of GGPPs from Saccharomyces cerevisiae reveals an unique positioning of the N-terminal helix A, which protrudes into the other subunit and stabilizes dimerization, although it is far from the main dimer interface. Through a series of mutants that were characterized by analytic ultracentrifugation (AUC), the replacement of L8 and I9 at this helix with Gly was found sufficient to disrupt the dimer into a monomer, leading to at least 10(3)-fold reduction in activity. Molecular dynamics simulations and free energy decomposition analyses revealed the possible effects of the mutations on the protein structures and several critical interactions for maintaining dimerization. Further site-directed mutagenesis and AUC studies elucidated the molecular mechanism for modulating dimerization and activity by long-range interactions.
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Affiliation(s)
- Chia-Hsiang Lo
- Institute of Biochemical Sciences, National Taiwan University, Taipei
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Overexpression of the gene encoding HMG-CoA reductase in Saccharomyces cerevisiae for production of prenyl alcohols. Appl Microbiol Biotechnol 2008; 82:837-45. [PMID: 19083230 DOI: 10.1007/s00253-008-1807-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 11/19/2008] [Accepted: 11/29/2008] [Indexed: 10/21/2022]
Abstract
To develop microbial production method for prenyl alcohols (e.g., (E,E)-farnesol (FOH), (E)-nerolidol (NOH), and (E,E,E)-geranylgeraniol (GGOH)), the genes encoding enzymes in the mevalonate and prenyl diphosphate pathways were overexpressed in Saccharomyces cerevisiae, and the resultant transformants were evaluated as to the production of these alcohols. Overexpression of the gene encoding hydroxymethylglutaryl (HMG)-CoA reductase was most effective among the genes tested. A derivative of S. cerevisiae ATCC 200589, which was selected through screening, was found to be the most suitable host for the production. On cultivation of the resultant transformant, in which the HMG-CoA reductase gene was overexpressed, in a 5-liter bench-scale jar fermenter for 7 d, the production of FOH, NOH, and GGOH reached 145.7, 98.8, and 2.46 mg/l, respectively.
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Gustavsson M, Barmark G, Larsson J, Murén E, Ronne H. Functional genomics of monensin sensitivity in yeast: implications for post-Golgi traffic and vacuolar H+-ATPase function. Mol Genet Genomics 2008; 280:233-48. [PMID: 18612650 DOI: 10.1007/s00438-008-0359-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Accepted: 06/13/2008] [Indexed: 11/24/2022]
Abstract
We have screened a complete collection of yeast knockout mutants for sensitivity to monensin, an ionophore that interferes with intracellular transport. A total of 63 sensitive strains were found. Most of the strains were deleted for genes involved in post-Golgi traffic, with an emphasis on vacuolar biogenesis. A high correlation was thus seen with VPS and VAM genes, but there were also significant differences between the three sets of genes. A weaker correlation was seen with sensitivity to NaCl, in particular rate of growth effects. Interestingly, all 14 genes encoding subunits of the vacuolar H(+)-ATPase (V-ATPase) were absent in our screen, even though they appeared in the VPS or VAM screens. All monensin-sensitive mutants that could be tested interact synthetically with a deletion of the A subunit of the V-ATPase, Vma1. Synthetic lethality was limited to mutations affecting endocytosis or retrograde transport to Golgi. In addition, vma1 was epistatic over the monensin sensitivity of vacuolar transport mutants, but not endocytosis mutants. Deletions of the two isoforms of the V-ATPase a subunit, Vph1 and Stv1 had opposite effects on the monensin sensitivity of a ypt7 mutant. These findings are consistent with a model where monensin inhibits growth by interfering with the maintenance of an acidic pH in the late secretory pathway. The synthetic lethality of vma1 with mutations affecting retrograde transport to the Golgi further suggests that it is in the late Golgi that a low pH must be maintained.
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Affiliation(s)
- Marie Gustavsson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
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Pateraki I, Kanellis AK. Isolation and functional analysis of two Cistus creticus cDNAs encoding geranylgeranyl diphosphate synthase. PHYTOCHEMISTRY 2008; 69:1641-1652. [PMID: 18402992 DOI: 10.1016/j.phytochem.2008.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Revised: 02/04/2008] [Accepted: 02/05/2008] [Indexed: 05/26/2023]
Abstract
Cistus creticus ssp. creticus is an indigenous shrub of the Mediterranean area. The glandular trichomes covering its leaf surfaces secrete a resin called "ladanum", which among others contains a number of specific labdane-type diterpenes that exhibit antibacterial and antifungal action as well as in vitro and in vivo cytotoxic and cytostatic activity against human cancer cell lines. In view of the properties and possible future exploitation of these metabolites, it was deemed necessary to study the geranylgeranyl diphosphate synthase enzyme (GGDPS, EC 2.5.1.30), a short chain prenyltransferase responsible for the synthesis of the precursor molecule of all diterpenes. In this work, we present the cloning, functional characterisation and expression profile at the gene and protein levels of two differentially expressed C. creticus full-length cDNAs, CcGGDPS1 and CcGGDPS2. Heterologous yeast cell expression system showed that these cDNAs exhibited GGDPS enzyme activity. Gene and protein expression analyses suggest that this enzyme is developmentally and tissue-regulated showing maximum expression in trichomes and smallest leaves (0.5-1.0cm). This work is the first attempt to study the terpenoid biosynthesis at the molecular level in C. creticus ssp. creticus.
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Affiliation(s)
- Irene Pateraki
- Group of Biotechnology of Pharmaceutical Plants, Laboratory of Pharmacognosy, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
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Saikia S, Nicholson MJ, Young C, Parker EJ, Scott B. The genetic basis for indole-diterpene chemical diversity in filamentous fungi. ACTA ACUST UNITED AC 2008; 112:184-99. [DOI: 10.1016/j.mycres.2007.06.015] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 05/24/2007] [Accepted: 06/19/2007] [Indexed: 10/23/2022]
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Ye Y, Fujii M, Hirata A, Kawamukai M, Shimoda C, Nakamura T. Geranylgeranyl diphosphate synthase in fission yeast is a heteromer of farnesyl diphosphate synthase (FPS), Fps1, and an FPS-like protein, Spo9, essential for sporulation. Mol Biol Cell 2007; 18:3568-81. [PMID: 17596513 PMCID: PMC1951748 DOI: 10.1091/mbc.e07-02-0112] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Both farnesyl diphosphate synthase (FPS) and geranylgeranyl diphosphate synthase (GGPS) are key enzymes in the synthesis of various isoprenoid-containing compounds and proteins. Here, we describe two novel Schizosaccharomyces pombe genes, fps1(+) and spo9(+), whose products are similar to FPS in primary structure, but whose functions differ from one another. Fps1 is essential for vegetative growth, whereas, a spo9 null mutant exhibits temperature-sensitive growth. Expression of fps1(+), but not spo9(+), suppresses the lethality of a Saccharomyces cerevisiae FPS-deficient mutant and also restores ubiquinone synthesis in an Escherichia coli ispA mutant, which lacks FPS activity, indicating that S. pombe Fps1 in fact functions as an FPS. In contrast to a typical FPS gene, no apparent GGPS homologues have been found in the S. pombe genome. Interestingly, although neither fps1(+) nor spo9(+) expression alone in E. coli confers clear GGPS activity, coexpression of both genes induces such activity. Moreover, the GGPS activity is significantly reduced in the spo9 mutant. In addition, the spo9 mutation perturbs the membrane association of a geranylgeranylated protein, but not that of a farnesylated protein. Yeast two-hybrid and coimmunoprecipitation analyses indicate that Fps1 and Spo9 physically interact. Thus, neither Fps1 nor Spo9 alone functions as a GGPS, but the two proteins together form a complex with GGPS activity. Because spo9 was originally identified as a sporulation-deficient mutant, we show here that expansion of the forespore membrane is severely inhibited in spo9Delta cells. Electron microscopy revealed significant accumulation membrane vesicles in spo9Delta cells. We suggest that lack of GGPS activity in a spo9 mutant results in impaired protein prenylation in certain proteins responsible for secretory function, thereby inhibiting forespore membrane formation.
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Affiliation(s)
- Yanfang Ye
- *Department of Biology, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Makoto Fujii
- Department of Applied Bioscience and Biotechnology, Faculty of Life and Environmental Science, Shimane University, Matsue 690-8504, Japan
| | - Aiko Hirata
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba 277-8562, Japan; and
| | - Makoto Kawamukai
- Department of Applied Bioscience and Biotechnology, Faculty of Life and Environmental Science, Shimane University, Matsue 690-8504, Japan
| | - Chikashi Shimoda
- *Department of Biology, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Taro Nakamura
- *Department of Biology, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
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Verwaal R, Wang J, Meijnen JP, Visser H, Sandmann G, van den Berg JA, van Ooyen AJJ. High-level production of beta-carotene in Saccharomyces cerevisiae by successive transformation with carotenogenic genes from Xanthophyllomyces dendrorhous. Appl Environ Microbiol 2007; 73:4342-50. [PMID: 17496128 PMCID: PMC1932764 DOI: 10.1128/aem.02759-06] [Citation(s) in RCA: 244] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To determine whether Saccharomyces cerevisiae can serve as a host for efficient carotenoid and especially beta-carotene production, carotenogenic genes from the carotenoid-producing yeast Xanthophyllomyces dendrorhous were introduced and overexpressed in S. cerevisiae. Because overexpression of these genes from an episomal expression vector resulted in unstable strains, the genes were integrated into genomic DNA to yield stable, carotenoid-producing S. cerevisiae cells. Furthermore, carotenoid production levels were higher in strains containing integrated carotenogenic genes. Overexpression of crtYB (which encodes a bifunctional phytoene synthase and lycopene cyclase) and crtI (phytoene desaturase) from X. dendrorhous was sufficient to enable carotenoid production. Carotenoid production levels were increased by additional overexpression of a homologous geranylgeranyl diphosphate (GGPP) synthase from S. cerevisiae that is encoded by BTS1. Combined overexpression of crtE (heterologous GGPP synthase) from X. dendrorhous with crtYB and crtI and introduction of an additional copy of a truncated 3-hydroxy-3-methylglutaryl-coenzyme A reductase gene (tHMG1) into carotenoid-producing cells resulted in a successive increase in carotenoid production levels. The strains mentioned produced high levels of intermediates of the carotenogenic pathway and comparable low levels of the preferred end product beta-carotene, as determined by high-performance liquid chromatography. We finally succeeded in constructing an S. cerevisiae strain capable of producing high levels of beta-carotene, up to 5.9 mg/g (dry weight), which was accomplished by the introduction of an additional copy of crtI and tHMG1 into carotenoid-producing yeast cells. This transformant is promising for further development toward the biotechnological production of beta-carotene by S. cerevisiae.
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Affiliation(s)
- René Verwaal
- Fungal Genomics, Laboratory of Microbiology, Wageningen University, Dreijenlaan 2, Wageningen, The Netherlands
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Thulasiram HV, Poulter CD. Farnesyl diphosphate synthase: the art of compromise between substrate selectivity and stereoselectivity. J Am Chem Soc 2007; 128:15819-23. [PMID: 17147392 PMCID: PMC2516916 DOI: 10.1021/ja065573b] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Farnesyl diphosphate (FPP) synthase catalyzes the consecutive head-to-tail condensations of isopentenyl diphosphate (IPP, C5) with dimethylallyl diphosphate (DMAPP, C5) and geranyl diphosphate (GPP, C10) to give (E,E)-FPP (C15). The enzyme belongs to a genetically distinct family of chain elongation enzymes that install E-double bonds during each addition of a five-carbon isoprene unit. Analysis of the C10 and C15 products from incubations with avian FPP synthase reveals that small amounts of neryl diphosphate (Z-C10) and (Z,E)-FPP are formed along with the E-isomers during the C5 --> C10 and C10 --> C15 reactions. Similar results were obtained for FPP synthase from Escherichia coli, Artemisia tridentata (sage brush), Pyrococcus furiosus, and Methanobacter thermautotrophicus and for GPP and FPP synthesized in vivo by E. coli FPP synthase. When (R)-[2-2H]IPP was a substrate for chain elongation, no deuterium was found in the chain elongation products. In contrast, the deuterium in (S)-[2-2H]IPP was incorporated into all of the products. Thus, the pro-R hydrogen at C2 of IPP is lost when the E- and Z-double bond isomers are formed. The synthesis of Z-double bond isomers by FPP synthase during chain elongation is unexpected for a highly evolved enzyme and probably reflects a compromise between optimizing double bond stereoselectivity and the need to exclude DMAPP from the IPP binding site.
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Affiliation(s)
| | - C. Dale Poulter
- Corresponding author: Phone: 801-581-6685; Fax: 801-581-4391; e-mail:
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Chang TH, Guo RT, Ko TP, Wang AHJ, Liang PH. Crystal Structure of Type-III Geranylgeranyl Pyrophosphate Synthase from Saccharomyces cerevisiae and the Mechanism of Product Chain Length Determination. J Biol Chem 2006; 281:14991-5000. [PMID: 16554305 DOI: 10.1074/jbc.m512886200] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Geranylgeranyl pyrophosphate synthase (GGPPs) catalyzes a condensation reaction of farnesyl pyrophosphate with isopentenyl pyrophosphate to generate C(20) geranylgeranyl pyrophosphate, which is a precursor for carotenoids, chlorophylls, geranylgeranylated proteins, and archaeal ether-linked lipid. For short-chain trans-prenyltransferases that synthesize C(10)-C(25) products, bulky amino acid residues generally occupy the fourth or fifth position upstream from the first DDXXD motif to block further elongation of the final products. However, the short-chain type-III GGPPs in eukaryotes lack any large amino acid at these positions. In this study, the first structure of type-III GGPPs from Saccharomyces cerevisiae has been determined to 1.98 A resolution. The structure is composed entirely of 15 alpha-helices joined by connecting loops and is arranged with alpha-helices around a large central cavity. Distinct from other known structures of trans-prenyltransferases, the N-terminal 17 amino acids (9-amino acid helix A and the following loop) of this GGPPs protrude from the helix core into the other subunit and contribute to the tight dimer formation. Deletion of the first 9 or 17 amino acids caused the dissociation of dimer into monomer, and the Delta(1-17) mutant showed abolished enzyme activity. In each subunit, an elongated hydrophobic crevice surrounded by D, F, G, H, and I alpha-helices contains two DDXXD motifs at the top for substrate binding with one Mg(2+) coordinated by Asp(75), Asp(79), and four water molecules. It is sealed at the bottom with three large residues of Tyr(107), Phe(108), and His(139). Compared with the major product C(30) synthesized by mutant H139A, the products generated by mutant Y107A and F108A are predominantly C(40) and C(30), respectively, suggesting the most important role of Tyr(107) in determining the product chain length.
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Affiliation(s)
- Tao-Hsin Chang
- Institute of Biochemical Sciences, National Taiwan University, Taipei 106, Taiwan
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Ro DK, Arimura GI, Lau SYW, Piers E, Bohlmann J. Loblolly pine abietadienol/abietadienal oxidase PtAO (CYP720B1) is a multifunctional, multisubstrate cytochrome P450 monooxygenase. Proc Natl Acad Sci U S A 2005; 102:8060-5. [PMID: 15911762 PMCID: PMC1138258 DOI: 10.1073/pnas.0500825102] [Citation(s) in RCA: 148] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Cytochrome P450 monooxygenases (P450s) are important enzymes for generating some of the enormous structural diversity of plant terpenoid secondary metabolites. In conifers, P450s are involved in the formation of a suite of diterpene resin acids (DRAs). Despite their important role in constitutive and induced oleoresin defense, a P450 gene of DRA formation has not yet been identified. By using phylogenetic cluster analysis of P450-like ESTs from loblolly pine (Pinus taeda), functional cDNA screening in yeast (Saccharomyces cerevisiae), and in vitro enzyme characterization, we cloned and identified a multifunctional and multisubstrate cytochrome P450 enzyme, CYP720B1 [abietadienol/abietadienal oxidase (PtAO)]. PtAO catalyzes an array of consecutive oxidation steps with several different diterpenol and diterpenal intermediates in loblolly pine DRA biosynthesis. Recombinant PtAO oxidized the respective carbon 18 of abietadienol, abietadienal, levopimaradienol, isopimara-7,15-dienol, isopimara-7,15-dienal, dehydroabietadienol, and dehydroabietadienal with apparent Michaelis-Menten (K(m)) values of 0.5-5.3 muM. PtAO expressed in yeast also catalyzed in vivo oxidation of abietadiene to abietic acid, but with activity much lower than with abietadienol or abietadienal. Consistent with a role of DRAs in conifer defense, PtAO transcript levels increased upon simulated insect attack using methyl jasmonate treatment of loblolly pine. The multisubstrate, multifunctional P450 diterpene oxidase PtAO, in concert with expression of a family of single-product and multiproduct diterpene synthases, allows for formation of a diverse suite of DRA defense metabolites in long-lived conifers.
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Affiliation(s)
- Dae-Kyun Ro
- Michael Smith Laboratories and Departments of Botany and Forest Science, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
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Ando A, Suzuki C. Cooperative function of the CHD5-like protein Mdm39p with a P-type ATPase Spf1p in the maintenance of ER homeostasis in Saccharomyces cerevisiae. Mol Genet Genomics 2005; 273:497-506. [PMID: 15909163 DOI: 10.1007/s00438-005-1153-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2005] [Accepted: 04/05/2005] [Indexed: 11/26/2022]
Abstract
Spf1p is a P-type ATPase that is mainly localized to the endoplasmic reticulum (ER) in Saccharomyces cerevisiae. The protein is involved in the maintenance of ion homeostasis in the ER. To investigate the intracellular role of Spf1p in more detail, we performed a genetic screen for mutations that lead to synthetic lethality in combination with a disruption of SPF1; the mutations identified have been termed lws (for lethal with spf1) mutations. Mutant alleles of five LWS genes (MDM39, RIC1, LAS21, TUP1 and BTS1) were recovered. The identification of these genes provides clues to the physiological relationships between Spf1p function and the secretory pathway. Among the five genes identified, MDM39 encodes a membrane protein that is similar to the protein CHD5/WRB, which is involved in the pathogenesis of Down syndrome-associated congenital heart disease in humans. We localized Mdm39p to the ER. The Deltamdm39 mutant exhibited defects in glycosylation, cell wall organization and the unfolded protein response. It also showed calcium-related phenotypes and synthetic lethal interactions with deletion mutations in other LWS genes. Our findings imply a homeostatic role for Mdm39p, which may be related to the regulation of calcium ion fluxes in the ER, and is indispensable for mutants that lack Spf1p.
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Affiliation(s)
- A Ando
- National Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
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50
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An intron-free methyl jasmonate inducible geranylgeranyl diphosphate synthase gene from Taxus media and its functional identification in yeast. Mol Biol 2005. [DOI: 10.1007/s11008-005-0002-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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