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Cao L, Liu Y, Sun L, Zhu Z, Yang D, Xia Z, Jin D, Dai Z, Rang J, Xia L. Enhanced triacylglycerol metabolism contributes to the efficient biosynthesis of spinosad in Saccharopolyspora spinosa. Synth Syst Biotechnol 2024; 9:809-819. [PMID: 39072147 PMCID: PMC11277812 DOI: 10.1016/j.synbio.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/16/2024] [Accepted: 06/22/2024] [Indexed: 07/30/2024] Open
Abstract
Triacylglycerol (TAG) is crucial for antibiotic biosynthesis derived from Streptomyces, as it serves as an important carbon source. In this study, the supplementation of exogenous TAG led to a 3.92-fold augmentation in spinosad production. The impact of exogenous TAG on the metabolic network of Saccharopolyspora spinosa were deeply analyzed through comparative proteomics. To optimize TAG metabolism and enhance spinosad biosynthesis, the lipase-encoding genes lip886 and lip385 were overexpressed or co-expressed. The results shown that the yield of spinosad was increased by 0.8-fold and 0.4-fold when lip886 and lip385 genes were overexpressed, respectively. Synergistic co-expression of these genes resulted in a 2.29-fold increase in the yield of spinosad. Remarkably, the combined overexpression of lip886 and lip385 in the presence of exogenous TAG elevated spinosad yields by 5.5-fold, led to a drastic increase in spinosad production from 0.036 g/L to 0.234 g/L. This study underscores the modification of intracellular concentrations of free fatty acids (FFAs), short-chain acyl-CoAs, ATP, and NADPH as mechanisms by which exogenous TAG modulates spinosad biosynthesis. Overall, the findings validate the enhancement of TAG catabolism as a beneficial strategy for optimizing spinosad production and provide foundational insights for engineering secondary metabolite biosynthesis pathways in another Streptomyces.
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Affiliation(s)
- Li Cao
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Yangchun Liu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Lin Sun
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Zirong Zhu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Danlu Yang
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Ziyuan Xia
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Duo Jin
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Zirui Dai
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Jie Rang
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Liqiu Xia
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, Hunan, 410081, China
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Lejeune C, Abreu S, Guérard F, Askora A, David M, Chaminade P, Gakière B, Virolle M. Consequences of the deletion of the major specialized metabolite biosynthetic pathways of Streptomyces coelicolor on the metabolome and lipidome of this strain. Microb Biotechnol 2024; 17:e14538. [PMID: 39093579 PMCID: PMC11296114 DOI: 10.1111/1751-7915.14538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 07/13/2024] [Indexed: 08/04/2024] Open
Abstract
Chassis strains, derived from Streptomyces coelicolor M145, deleted for one or more of its four main specialized metabolites biosynthetic pathways (CPK, CDA, RED and ACT), in various combinations, were constructed for the heterologous expression of specialized metabolites biosynthetic pathways of various types and origins. To determine consequences of these deletions on the metabolism of the deleted strains comparative lipidomic and metabolomic analyses of these strains and of the original strain were carried out. These studies unexpectedly revealed that the deletion of the peptidic clusters, RED and/or CDA, in a strain deleted for the ACT cluster, resulted into a great increase in the triacylglycerol (TAG) content, whereas the deletion of polyketide clusters, ACT and CPK had no impact on TAG content. Low or high TAG content of the deleted strains was correlated with abundance or paucity in amino acids, respectively, reflecting high or low activity of oxidative metabolism. Hypotheses based on what is known on the bio-activity and the nature of the precursors of these specialized metabolites are proposed to explain the unexpected consequences of the deletion of these pathways on the metabolism of the bacteria and on the efficiency of the deleted strains as chassis strains.
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Affiliation(s)
- Clara Lejeune
- Institut de Biologie Intégrative de la Cellule (I2BC, UMR 9198), Université Paris‐Saclay, CEA, CNRS, Group MES (Métabolisme Energétique Des Streptomyces)Gif‐sur‐YvetteFrance
| | - Sonia Abreu
- UFR Pharmacie, Université Paris‐Saclay, CNRS, Group «Lipides, Systèmes Analytiques et Biologiques (Lip(Sys)»OrsayFrance
| | - Florence Guérard
- Institut Des Sciences Des Plantes (IPS2, UMR 9213), Université Paris‐Saclay, CNRS, Plateforme «SPOmics‐Métabolome»Gif‐sur‐YvetteFrance
| | - Ahmed Askora
- Institut de Biologie Intégrative de la Cellule (I2BC, UMR 9198), Université Paris‐Saclay, CEA, CNRS, Group MES (Métabolisme Energétique Des Streptomyces)Gif‐sur‐YvetteFrance
- Department of Botany and Microbiology, Faculty of ScienceZagazig UniversityZagazigEgypt
| | - Michelle David
- Institut de Biologie Intégrative de la Cellule (I2BC, UMR 9198), Université Paris‐Saclay, CEA, CNRS, Group MES (Métabolisme Energétique Des Streptomyces)Gif‐sur‐YvetteFrance
| | - Pierre Chaminade
- UFR Pharmacie, Université Paris‐Saclay, CNRS, Group «Lipides, Systèmes Analytiques et Biologiques (Lip(Sys)»OrsayFrance
| | - Bertrand Gakière
- Institut Des Sciences Des Plantes (IPS2, UMR 9213), Université Paris‐Saclay, CNRS, Plateforme «SPOmics‐Métabolome»Gif‐sur‐YvetteFrance
| | - Marie‐Joelle Virolle
- Institut de Biologie Intégrative de la Cellule (I2BC, UMR 9198), Université Paris‐Saclay, CEA, CNRS, Group MES (Métabolisme Energétique Des Streptomyces)Gif‐sur‐YvetteFrance
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Li X, Guo R, Luan J, Fu J, Zhang Y, Wang H. Improving spinosad production by tuning expressions of the forosamine methyltransferase and the forosaminyl transferase to reduce undesired less active byproducts in the heterologous host Streptomyces albus J1074. Microb Cell Fact 2023; 22:15. [PMID: 36658647 PMCID: PMC9854174 DOI: 10.1186/s12934-023-02023-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/12/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Spinosad is a macrolide insecticide with the tetracyclic lactone backbone to which forosamine and tri-O-methylrhamnose are attached. Both the sugar moieties are essential for its insecticidal activity. In biosynthesis of spinosad, the amino group of forosamine is dimethylated by SpnS and then transferred onto the lactone backbone by SpnP. Because the spinosad native producer is difficult to genetically manipulate, we previously changed promoters, ribosome binding sites and start codons of 23 spinosad biosynthetic genes to construct an artificial gene cluster which resulted in a 328-fold yield improvement in the heterologous host Streptomyces albus J1074 compared with the native gene cluster. However, in fermentation of J1074 with the artificial gene cluster, the N-monodesmethyl spinosad with lower insecticidal activity was always produced with the same titer as spinosad. RESULTS By tuning expression of SpnS with an inducible promotor, we found that the undesired less active byproduct N-monodesmethyl spinosad was produced when SpnS was expressed at low level. Although N-monodesmethyl spinosad can be almost fully eliminated with high SpnS expression level, the titer of desired product spinosad was only increased by less than 38%. When the forosaminyl transferase SpnP was further overexpressed together with SpnS, the titer of spinosad was improved by 5.3 folds and the content of N-desmethyl derivatives was decreased by ~ 90%. CONCLUSION N-monodesmethyl spinosad was produced due to unbalanced expression of spnS and upstream biosynthetic genes in the refactored artificial gene cluster. The accumulated N-desmethyl forosamine was transferred onto the lactone backbone by SpnP. This study suggested that balanced expression of biosynthetic genes should be considered in the refactoring strategy to avoid accumulation of undesired intermediates or analogues which may affect optimal production of desired compounds.
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Affiliation(s)
- Xiaochen Li
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
| | - Ruofei Guo
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
| | - Ji Luan
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
| | - Jun Fu
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
| | - Youming Zhang
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
| | - Hailong Wang
- grid.27255.370000 0004 1761 1174State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University–Helmholtz Institute of Biotechnology, Shandong University, Binhai Rd 72, Qingdao, 266237 Shandong China
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WEI W, WANG W, LI C, TANG Y, GUO Z, CHEN Y. Construction and heterologous expression of the di-AFN A1 biosynthetic gene cluster in Streptomyces model strains. Chin J Nat Med 2022; 20:873-880. [DOI: 10.1016/s1875-5364(22)60197-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 11/23/2022]
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Lyu ZY, Bu QT, Fang JL, Zhu CY, Xu WF, Ma L, Gao WL, Chen XA, Li YQ. Improving the Yield and Quality of Daptomycin in Streptomyces roseosporus by Multilevel Metabolic Engineering. Front Microbiol 2022; 13:872397. [PMID: 35509317 PMCID: PMC9058172 DOI: 10.3389/fmicb.2022.872397] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
Daptomycin is a cyclic lipopeptide antibiotic with a significant antibacterial action against antibiotic-resistant Gram-positive bacteria. Despite numerous attempts to enhance daptomycin yield throughout the years, the production remains unsatisfactory. This study reports the application of multilevel metabolic engineering strategies in Streptomyces roseosporus to reconstruct high-quality daptomycin overproducing strain L2797-VHb, including precursor engineering (i.e., refactoring kynurenine pathway), regulatory pathway reconstruction (i.e., knocking out negative regulatory genes arpA and phaR), byproduct engineering (i.e., removing pigment), multicopy biosynthetic gene cluster (BGC), and fermentation process engineering (i.e., enhancing O2 supply). The daptomycin titer of L2797-VHb arrived at 113 mg/l with 565% higher comparing the starting strain L2790 (17 mg/l) in shake flasks and was further increased to 786 mg/l in 15 L fermenter. This multilevel metabolic engineering method not only effectively increases daptomycin production, but can also be applied to enhance antibiotic production in other industrial strains.
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Affiliation(s)
- Zhong-Yuan Lyu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Qing-Ting Bu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Jiao-Le Fang
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Chen-Yang Zhu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Wei-Feng Xu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Lie Ma
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Wen-Li Gao
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Xin-Ai Chen
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
| | - Yong-Quan Li
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou, China
- *Correspondence: Yong-Quan Li,
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