1
|
Li X, Wang J, Li J, Zhou Y, Huang X, Guo L, Liu R, Luo Y, Tan X, Hu X, Gao Y, Yu B, Fu M, Wang P, Zhou S. Exploring genetic codon expansion for unnatural amino acid incorporation in filamentous fungus Aspergillus nidulans. J Biotechnol 2024; 393:91-99. [PMID: 39067577 DOI: 10.1016/j.jbiotec.2024.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/19/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Genetic code expansion technology allows the incorporation of unnatural amino acids (UAAs) into proteins, which is useful in protein engineering, synthetic biology, and gene therapy. Despite its potential applications in various species, filamentous fungi remain unexplored. This study aims to address this gap by developing these techniques in Aspergillus nidulans. We introduced an amber stop codon into a specific sequence within the reporter gene expressed in A. nidulans and replaced the anticodon of the fungal tRNATyr with CUA. This resulted in the synthesis of the target protein, confirming the occurrence of amber suppression in the fungus. When exogenous E. coli tRNATyrCUA (Ec. tRNATyrCUA) and E. coli tyrosyl-tRNA (Ec.TyrRS) were introduced into A. nidulans, they successfully synthesized the target protein via amber suppression and were shown to be orthogonal to the fungal translation system. By replacing the wild-type Ec.TyrRS with a mutant with a higher affinity for the UAA O-methyl-L-tyrosine, the fungal system was able to initiate the synthesis of the UAA-labeled protein (UAA-protein). We further increased the expression level of the UAA-protein through several rational modifications. The successful development of a genetic code expansion technique for A. nidulans has introduced a potentially valuable approach to the study of fungal protein structure and function.
Collapse
Affiliation(s)
- Xueying Li
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Jing Wang
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Jingyi Li
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Yao Zhou
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaofei Huang
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Lingyan Guo
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Renning Liu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Yiqing Luo
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyu Tan
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaotao Hu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Yan Gao
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Bingzi Yu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Mingxin Fu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Ping Wang
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, Twin cities, Saint Paul, MN 55108, USA
| | - Shengmin Zhou
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China.
| |
Collapse
|
2
|
Yu ZP, An C, Yao Y, Yan JZ, Gao SS, Gu YC, Wang CY, Cui C. An unexpected role of EasD af: catalyzing the conversion of chanoclavine aldehyde to chanoclavine acid. Appl Microbiol Biotechnol 2024; 108:323. [PMID: 38713233 PMCID: PMC11076337 DOI: 10.1007/s00253-024-13157-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/09/2024] [Accepted: 04/22/2024] [Indexed: 05/08/2024]
Abstract
Ergot alkaloids (EAs) are a diverse group of indole alkaloids known for their complex structures, significant pharmacological effects, and toxicity to plants. The biosynthesis of these compounds begins with chanoclavine-I aldehyde (CC aldehyde, 2), an important intermediate produced by the enzyme EasDaf or its counterpart FgaDH from chanoclavine-I (CC, 1). However, how CC aldehyde 2 is converted to chanoclavine-I acid (CC acid, 3), first isolated from Ipomoea violacea several decades ago, is still unclear. In this study, we provide in vitro biochemical evidence showing that EasDaf not only converts CC 1 to CC aldehyde 2 but also directly transforms CC 1 into CC acid 3 through two sequential oxidations. Molecular docking and site-directed mutagenesis experiments confirmed the crucial role of two amino acids, Y166 and S153, within the active site, which suggests that Y166 acts as a general base for hydride transfer, while S153 facilitates proton transfer, thereby increasing the acidity of the reaction. KEY POINTS: • EAs possess complicated skeletons and are widely used in several clinical diseases • EasDaf belongs to the short-chain dehydrogenases/reductases (SDRs) and converted CC or CC aldehyde to CC acid • The catalytic mechanism of EasDaf for dehydrogenation was analyzed by molecular docking and site mutations.
Collapse
Affiliation(s)
- Zhi-Pu Yu
- Key Laboratory of Marine Drugs, The Ministry of Education of China, Institute of Evolution & Marine Biodiversity, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, People's Republic of China
- Beijing Institute for Drug Control, NMPA Key Laboratory for Research and Evaluation of Generic Drugs, Beijing Key Laboratory of Analysis and Evaluation on Chinese Medicine, Beijing, 102206, People's Republic of China
| | - Chunyan An
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, People's Republic of China
| | - Yongpeng Yao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Ju-Zhang Yan
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, People's Republic of China
| | - Shu-Shan Gao
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, People's Republic of China
| | - Yu-Cheng Gu
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, People's Republic of China.
- Syngenta Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK.
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, Institute of Evolution & Marine Biodiversity, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, People's Republic of China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, People's Republic of China.
- Beijing Institute for Drug Control, NMPA Key Laboratory for Research and Evaluation of Generic Drugs, Beijing Key Laboratory of Analysis and Evaluation on Chinese Medicine, Beijing, 102206, People's Republic of China.
| | - Chengsen Cui
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, People's Republic of China.
| |
Collapse
|
3
|
Sang M, Feng P, Chi LP, Zhang W. The biosynthetic logic and enzymatic machinery of approved fungi-derived pharmaceuticals and agricultural biopesticides. Nat Prod Rep 2024; 41:565-603. [PMID: 37990930 DOI: 10.1039/d3np00040k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Covering: 2000 to 2023The kingdom Fungi has become a remarkably valuable source of structurally complex natural products (NPs) with diverse bioactivities. Since the revolutionary discovery and application of the antibiotic penicillin from Penicillium, a number of fungi-derived NPs have been developed and approved into pharmaceuticals and pesticide agents using traditional "activity-guided" approaches. Although emerging genome mining algorithms and surrogate expression hosts have brought revolutionary approaches to NP discovery, the time and costs involved in developing these into new drugs can still be prohibitively high. Therefore, it is essential to maximize the utility of existing drugs by rational design and systematic production of new chemical structures based on these drugs by synthetic biology. To this purpose, there have been great advances in characterizing the diversified biosynthetic gene clusters associated with the well-known drugs and in understanding the biosynthesis logic mechanisms and enzymatic transformation processes involved in their production. We describe advances made in the heterogeneous reconstruction of complex NP scaffolds using fungal polyketide synthases (PKSs), non-ribosomal peptide synthetases (NRPSs), PKS/NRPS hybrids, terpenoids, and indole alkaloids and also discuss mechanistic insights into metabolic engineering, pathway reprogramming, and cell factory development. Moreover, we suggest pathways for expanding access to the fungal chemical repertoire by biosynthesis of representative family members via common platform intermediates and through the rational manipulation of natural biosynthetic machineries for drug discovery.
Collapse
Affiliation(s)
- Moli Sang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Peiyuan Feng
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Lu-Ping Chi
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Wei Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
| |
Collapse
|
4
|
Yu J, Zheng Y, Song C, Chen S. New insights into the roles of fungi and bacteria in the development of medicinal plant. J Adv Res 2023:S2090-1232(23)00394-6. [PMID: 38092299 DOI: 10.1016/j.jare.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/02/2024] Open
Abstract
BACKGROUND The interaction between microorganisms and medicinal plants is a popular topic. Previous studies consistently reported that microorganisms were mainly considered pathogens or contaminants. However, with the development of microbial detection technology, it has been demonstrated that fungi and bacteria affect beneficially the medicinal plant production chain. AIM OF REVIEW Microorganisms greatly affect medicinal plants, with microbial biosynthesis a high regarded topic in medicinal plant-microbial interactions. However, it lacks a systematic review discussing this relationship. Current microbial detection technologies also have certain advantages and disadvantages, it is essential to compare the characteristics of various technologies. KEY SCIENTIFIC CONCEPTS OF REVIEW This review first illustrates the role of fungi and bacteria in various medicinal plant production procedures, discusses the development of microbial detection and identification technologies in recent years, and concludes with microbial biosynthesis of natural products. The relationship between fungi, bacteria, and medicinal plants is discussed comprehensively. We also propose a future research model and direction for further studies.
Collapse
Affiliation(s)
- Jingsheng Yu
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 China; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700 China
| | - Yixuan Zheng
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 China
| | - Chi Song
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 China
| | - Shilin Chen
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 China; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700 China.
| |
Collapse
|
5
|
Yu J, Liu X, Ma C, Li C, Zhang Y, Che Q, Zhang G, Zhu T, Li D. Activation of a Silent Polyketide Synthase SlPKS4 Encoding the C 7-Methylated Isocoumarin in a Marine-Derived Fungus Simplicillium lamellicola HDN13-430. Mar Drugs 2023; 21:490. [PMID: 37755103 PMCID: PMC10532586 DOI: 10.3390/md21090490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023] Open
Abstract
Coumarins, isocoumarins and their derivatives are polyketides abundant in fungal metabolites. Although they were first discovered over 50 years ago, the biosynthetic process is still not entirely understood. Herein, we report the activation of a silent nonreducing polyketide synthase that encodes a C7-methylated isocoumarin, similanpyrone B (1), in a marine-derived fungus Simplicillium lamellicola HDN13-430 by heterologous expression. Feeding studies revealed the host enzymes can change 1 into its hydroxylated derivatives pestapyrone A (2). Compounds 1 and 2 showed moderate radical scavenging activities with ED50 values of 67.4 µM and 104.2 µM. Our discovery fills the gap in the enzymatic elucidation of naturally occurring C7-methylated isocoumarin derivatives.
Collapse
Affiliation(s)
- Jing Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Xiaolin Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Chuanteng Ma
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Chen Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Yuhan Zhang
- School of Pharmaceutical Science, Shandong University, Jinan 250100, China;
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (J.Y.); (X.L.); (C.M.); (C.L.); (Q.C.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| |
Collapse
|
6
|
Panaccione DG. Derivation of the multiply-branched ergot alkaloid pathway of fungi. Microb Biotechnol 2023; 16:742-756. [PMID: 36636806 PMCID: PMC10034635 DOI: 10.1111/1751-7915.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/16/2022] [Accepted: 01/02/2023] [Indexed: 01/14/2023] Open
Abstract
Ergot alkaloids are a large family of fungal specialized metabolites that are important as toxins in agriculture and as the foundation of powerful pharmaceuticals. Fungi from several lineages and diverse ecological niches produce ergot alkaloids from at least one of several branches of the ergot alkaloid pathway. The biochemical and genetic bases for the different branches have been established and are summarized briefly herein. Several pathway branches overlap among fungal lineages and ecological niches, indicating activities of ergot alkaloids benefit fungi in different environments and conditions. Understanding the functions of the multiple genes in each branch of the pathway allows researchers to parse the abundant genomic sequence data available in public databases in order to assess the ergot alkaloid biosynthesis capacity of previously unexplored fungi. Moreover, the characterization of the genes involved in the various branches provides opportunities and resources for the biotechnological manipulation of ergot alkaloids for experimentation and pharmaceutical development.
Collapse
Affiliation(s)
- Daniel G Panaccione
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, West Virginia, USA
| |
Collapse
|
7
|
Mining an O-methyltransferase for de novo biosynthesis of physcion in Aspergillus nidulans. Appl Microbiol Biotechnol 2023; 107:1177-1188. [PMID: 36648527 DOI: 10.1007/s00253-023-12373-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/03/2023] [Accepted: 01/07/2023] [Indexed: 01/18/2023]
Abstract
Physcion is one of natural anthraquinones, registered as a novel plant-derived fungicide due to its excellent prevention of plant disease. However, the current production of physcion via plant extraction limits its yield promotion and application. Here, a pair of polyketide synthases (PKS) in emodin biosynthesis were used as probes to mining the potential O-methyltransferase (OMT) responsible for physcion biosynthesis. Further refinement using the phylogenetic analysis of the mined OMTs revealed a distinct OMT (AcOMT) with the ability of transferring a methyl group to C-6 hydroxyl of emodin to form physcion. Through introducing AcOMT, we successfully obtained the de novo production of physcion in Aspergillus nidulans. The physcion biosynthetic pathway was further rationally engineered by expressing the decarboxylase genes from different fungi. Finally, the titer of physcion reached to 64.6 mg/L in shake-flask fermentation through enhancing S-adenosylmethionine supply. Our work provides a native O-methyltransferase for physcion biosynthesis and lays the foundation for further improving the production of physcion via a sustainable route. KEY POINTS: • Genome mining of the native O-methyltransferase responsible for physcion biosynthesis • De novo biosynthesis of physcion in the engineered Aspergillus nidulans • Providing an alternative way to produce plant-derived fungicide physcion.
Collapse
|
8
|
Hu M, Zhou Y, Du S, Zhang X, Tang S, Yang Y, Zhang W, Chen S, Huang X, Lu X. Construction of an efficient Claviceps paspali cell factory for lysergic acid production. Front Bioeng Biotechnol 2023; 10:1093402. [PMID: 36760750 PMCID: PMC9905238 DOI: 10.3389/fbioe.2022.1093402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/28/2022] [Indexed: 01/27/2023] Open
Abstract
Lysergic acid (LA) is the key precursor of ergot alkaloids, and its derivatives have been used extensively for the treatment of neurological disorders. However, the poor fermentation efficiency limited its industrial application. At the same time, the hardship of genetic manipulation has hindered the metabolic engineering of Claviceps strains to improve the LA titer further. In this study, an efficient genetic manipulation system based on the protoplast-mediated transformation was established in the industrial strain Claviceps paspali. On this basis, the gene lpsB located in the ergot alkaloids biosynthetic gene cluster was deleted to construct the LA-producing cell factory. Plackett-Burman and Box-Behnken designs were used in shaking flasks, achieving an optimal fermentation medium composition. The final titer of LA and iso-lysergic acid (ILA) reached 3.7 g·L-1, which was 4.6 times higher than that in the initial medium. Our work provides an efficient strategy for the biosynthesis of LA and ILA and lays the groundwork for its industrial production.
Collapse
Affiliation(s)
- Mingzhe Hu
- College of Life Sciences, Qingdao University, Qingdao, China,Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China
| | - Yu Zhou
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China,Institute for Smart Materials and Engineering, University of Jinan, Jinan, China
| | - Siyu Du
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China
| | - Xuan Zhang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China
| | - Shen Tang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China
| | - Yong Yang
- Shisenhai (Hangzhou) Biopharmaceutical Co., Ltd., Hangzhou, China
| | - Wei Zhang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China,University of Chinese Academy of Sciences, Beijing, China
| | - Shaoxin Chen
- State Key Lab of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, Shanghai, China,*Correspondence: Shaoxin Chen, ; Xuenian Huang,
| | - Xuenian Huang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China,*Correspondence: Shaoxin Chen, ; Xuenian Huang,
| | - Xuefeng Lu
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China,Shandong Energy Institute, Qingdao, China,Qingdao New Energy Shandong Laboratory, Qingdao, China,University of Chinese Academy of Sciences, Beijing, China,Marine Biology and Biotechnology Laboratory, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| |
Collapse
|
9
|
Ma Y, Yan J, Yang L, Yao Y, Wang L, Gao SS, Cui C. A hybrid system for the overproduction of complex ergot alkaloid chanoclavine. Front Bioeng Biotechnol 2022; 10:1095464. [PMID: 36619381 PMCID: PMC9811125 DOI: 10.3389/fbioe.2022.1095464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Synthetic biology-based methods (Sbio) and chemical synthesis (Csyn) are two independent approaches that are both widely used for synthesizing biomolecules. In the current study, two systems were combined for the overproduction of chanoclavine (CC), a structurally complex ergot alkaloid. The whole synthetic pathway for CC was split into three sections: enzymatic synthesis of 4-Br-Trp (4-Bromo-trptophan) using cell-lysate catalysis (CLC), chemical synthesis of prechanoclavine (PCC) from 4-Br-Trp, and overproduction CC from PCC using a whole-cell catalysis (WCC) platform. The final titer of the CC is over 3 g/L in this Sbio-Csyn hybrid system, the highest yield reported so far, to the best of our knowledge. The development of such a combined route could potentially avoid the limitations of both Sbio and Csyn systems and boost the overproduction of complex natural products.
Collapse
Affiliation(s)
- Yaqing Ma
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China,University of Chinese Academy of Sciences, Beijing, China
| | - Juzhang Yan
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Lujia Yang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Yongpeng Yao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Luoyi Wang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China,*Correspondence: Luoyi Wang, ; Shu-Shan Gao, ; Chengsen Cui,
| | - Shu-Shan Gao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China,National Technology Innovation Center of Synthetic Biology, Tianjin, China,*Correspondence: Luoyi Wang, ; Shu-Shan Gao, ; Chengsen Cui,
| | - Chengsen Cui
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China,National Technology Innovation Center of Synthetic Biology, Tianjin, China,*Correspondence: Luoyi Wang, ; Shu-Shan Gao, ; Chengsen Cui,
| |
Collapse
|
10
|
Yu ZP, An C, Yao Y, Wang CY, Sun Z, Cui C, Liu L, Gao SS. A combined strategy for the overproduction of complex ergot alkaloid agroclavine. Synth Syst Biotechnol 2022; 7:1126-1132. [PMID: 36092273 PMCID: PMC9428804 DOI: 10.1016/j.synbio.2022.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 11/26/2022] Open
Abstract
Microbial cell factories (MCFs) and cell-free systems (CFSs) are generally considered as two unrelated approaches for the biosynthesis of biomolecules. In the current study, two systems were combined together for the overproduction of agroclavine (AC), a structurally complex ergot alkaloid. The whole biosynthetic pathway for AC was split into the early pathway and the late pathway at the point of the FAD-linked oxidoreductase EasE, which was reconstituted in an MCF (Aspergillus nidulans) and a four-enzyme CFS, respectively. The final titer of AC of this combined system is 1209 mg/L, which is the highest one that has been reported so far, to the best of our knowledge. The development of such a combined route could potentially avoid the limitations of both MCF and CFS systems, and boost the production of complex ergot alkaloids with polycyclic ring systems.
Collapse
Affiliation(s)
- Zhi-Pu Yu
- Key Laboratory of Marine Drugs, The Ministry of Education of China, Institute of Evolution & Marine Biodiversity, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, PR China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, PR China
| | - Chunyan An
- Beijing Institute for Drug Control, NMPA Key Laboratory for Research and Evaluation of Generic Drugs, Beijing Key Laboratory of Analysis and Evaluation on Chinese Medicine, Beijing, 102206, PR China
| | - Yongpeng Yao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, Institute of Evolution & Marine Biodiversity, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, PR China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, PR China
| | - Zhoutong Sun
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, PR China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, PR China
| | - Chengsen Cui
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, PR China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, PR China
| | - Ling Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, PR China
- Corresponding author.
| | - Shu-Shan Gao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, PR China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, PR China
- Corresponding author.
| |
Collapse
|
11
|
Yan Q, Han L, Liu X, You C, Zhou S, Zhou Z. Development of an auto-inducible expression system by nitrogen sources switching based on the nitrogen catabolite repression regulation. Microb Cell Fact 2022; 21:73. [PMID: 35484589 PMCID: PMC9047365 DOI: 10.1186/s12934-022-01794-5] [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: 02/24/2022] [Accepted: 04/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The construction of protein expression systems is mainly focused on carbon catabolite repression and quorum-sensing systems. However, each of these regulatory modes has an inherent flaw, which is difficult to overcome. Organisms also prioritize using different nitrogen sources, which is called nitrogen catabolite repression. To date, few gene regulatory systems based on nitrogen catabolite repression have been reported. RESULTS In this study, we constructed a nitrogen switching auto-inducible expression system (NSAES) based on nitrogen catabolite regulation and nitrogen utilization in Aspergillus nidulans. The PniaD promoter that is highly induced by nitrate and inhibition by ammonia was used as the promoter. Glucuronidase was the reporter protein. Glucuronidase expression occurred after ammonium was consumed in an ammonium and nitrate compounding medium, achieving stage auto-switching for cell growth and gene expression. This system maintained a balance between cell growth and protein production to maximize stress products. Expressions of glycosylated and secretory proteins were successfully achieved using this auto-inducible system. CONCLUSIONS We described an efficient auto-inducible protein expression system based on nitrogen catabolite regulation. The system could be useful for protein production in the laboratory and industrial applications. Simultaneously, NSAES provides a new auto-inducible expression regulation mode for other filamentous fungi.
Collapse
Affiliation(s)
- Qin Yan
- Key Laboratory of Industrial Biotechnology (Ministry of Education), School of Biotechnology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Laichuang Han
- Key Laboratory of Industrial Biotechnology (Ministry of Education), School of Biotechnology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Xinyue Liu
- Key Laboratory of Industrial Biotechnology (Ministry of Education), School of Biotechnology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Cuiping You
- Key Laboratory of Industrial Biotechnology (Ministry of Education), School of Biotechnology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Shengmin Zhou
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, China.
| | - Zhemin Zhou
- Key Laboratory of Industrial Biotechnology (Ministry of Education), School of Biotechnology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| |
Collapse
|
12
|
Jiang YQ, Lin JP. Recent progress in strategies for steroid production in yeasts. World J Microbiol Biotechnol 2022; 38:93. [PMID: 35441962 DOI: 10.1007/s11274-022-03276-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/24/2022] [Indexed: 10/18/2022]
Abstract
As essential structural molecules of fungal cell membrane, ergosterol is not only an important component of fungal growth and stress-resistance but also a key precursor for manufacturing steroid drugs of pharmaceutical or agricultural significance. So far, ergosterol biosynthesis in yeast has been elucidated elaborately, and efforts have been made to increase ergosterol production through regulation of ergosterol metabolism and storage. Furthermore, the same intermediates shared by yeasts and animals or plants make the construction of heterologous sterol pathways in yeast a promising approach to synthesize valuable steroids, such as phytosteroids and animal steroid hormones. During these challenging processes, several obstacles have arisen and been combated with great endeavors. This paper reviews recent research progress of yeast metabolic engineering for improving the production of ergosterol and heterologous steroids. The remaining tactics are also discussed.
Collapse
Affiliation(s)
- Yi-Qi Jiang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jian-Ping Lin
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
| |
Collapse
|
13
|
An C, Zhu F, Yao Y, Zhang K, Wang W, Zhang J, Wei G, Xia Y, Gao Q, Gao SS. Beyond the cyclopropyl ring formation: fungal Aj_EasH catalyzes asymmetric hydroxylation of ergot alkaloids. Appl Microbiol Biotechnol 2022; 106:2981-2991. [PMID: 35389067 DOI: 10.1007/s00253-022-11892-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/12/2022] [Accepted: 03/19/2022] [Indexed: 11/28/2022]
Abstract
Ergot alkaloids (EAs) are among the most important bioactive natural products. FeII/α-ketoglutarate-dependent dioxygenase Aj_EasH from Aspergillus japonicus is responsible for the formation of the cyclopropyl ring of the ergot alkaloid (EA) cycloclavine (4). Herein we reconstituted the biosynthesis of 4 in vitro from prechanoclavine (1) for the first time. Additionally, an unexpected activity of asymmetric hydroxylation at the C-4 position of EA compound festuclavine (5) for Aj_EasH was revealed. Furthermore, Aj_EasH also catalyzes the hydroxylation of two more EAs 9,10-dihydrolysergol (6) and elymoclavine (7). Thus, our results proved that Aj_EasH is a promiscuous and bimodal dioxygenase that catalyzes both the formation of cyclopropyl ring in 4 and the asymmetric hydroxylation of EAs. Molecular docking (MD) revealed the substrate-binding mode as well as the catalytic mechanism of asymmetric hydroxylation, suggesting more EAs could potentially be recognized and hydroxylated by Aj_EasH. Overall, the newly discovered activity empowered Aj_EasH with great potential for producing more diverse and bioactive EA derivatives. KEY POINTS: • Aj_EasH was revealed to be a promiscuous and bimodal FeII/α-ketoglutarate-dependent dioxygenase. • Aj_EasH converted festuclavine, 9,10-dihydrolysergol, and elymoclavine to their hydroxylated derivatives. • The catalytic mechanism of Aj_EasH for hydroxylation was analyzed by molecular docking.
Collapse
Affiliation(s)
- Chunyan An
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Biotechnology College of Tianjin University of Science and Technology, Tianjin, 300457, China. .,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
| | - Fangfang Zhu
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Biotechnology College of Tianjin University of Science and Technology, Tianjin, 300457, China.,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Yongpeng Yao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Kexin Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wei Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jun Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Guangzheng Wei
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yue Xia
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Qiang Gao
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Biotechnology College of Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Shu-Shan Gao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
| |
Collapse
|