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Ma C, Wang W, Zhang K, Zhang F, Chang Y, Sun C, Che Q, Zhu T, Zhang G, Li D. Exploring the Diverse Landscape of Fungal Cytochrome P450-Catalyzed Regio- and Stereoselective Dimerization of Diketopiperazines. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2310018. [PMID: 38687842 DOI: 10.1002/advs.202310018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/16/2024] [Indexed: 05/02/2024]
Abstract
Dimeric indole-containing diketopiperazines (di-DKPs) are a diverse group of natural products produced through cytochrome P450-catalyzed C-C or C-N coupling reactions. The regio- and stereoselectivity of these reactions plays a significant role in the structural diversity of di-DKPs. Despite their pivotal role, the mechanisms governing the selectivity in fungi are not fully understood. Employing bioinformatics analysis and heterologous expression experiments, five undescribed P450 enzymes (AmiP450, AcrP450, AtP450, AcP450, and AtuP450) responsible for the regio- and stereoselective dimerization of diketopiperazines (DKPs) in fungi are identified. The function of these P450s is consistent with phylogenetic analysis, highlighting their dominant role in controlling the dimerization modes. Combinatorial biosynthesis-based pathway reconstitution of non-native gene clusters expands the chemical space of fungal di-DKPs and reveals that the regioselectivity is influenced by the substrate. Furthermore, multiple sequence alignment and molecular docking of these enzymes demonstrate a C-terminal variable region near the substrate tunnel entrance in AtuP450 that is crucial for its regioselectivity. These findings not only reveal the secret of fungal di-DKPs diversity but also deepen understanding of the mechanisms and catalytic specificity involved in P450-catalyzed dimerization reactions.
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Affiliation(s)
- Chuanteng Ma
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Wenxue Wang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Kaijin Zhang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Falei Zhang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Yimin Chang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Chunxiao Sun
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Qian Che
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
| | - Guojian Zhang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, 266237, China
| | - Dehai Li
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Sanya Oceanographic Institute, Ocean University of China, Qingdao/Sanya, 266000, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, 266237, China
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2
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Zou ZB, Wu TZ, Yang LH, He XW, Liu WY, Zhang K, Xie CL, Xie MM, Zhang Y, Yang XW, Wang JS. Hepialiamides A-C: Aminated Fusaric Acid Derivatives and Related Metabolites with Anti-Inflammatory Activity from the Deep-Sea-Derived Fungus Samsoniella hepiali W7. Mar Drugs 2023; 21:596. [PMID: 37999419 PMCID: PMC10672582 DOI: 10.3390/md21110596] [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: 10/21/2023] [Revised: 11/07/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
A systematic investigation combined with a Global Natural Products Social (GNPS) molecular networking approach, was conducted on the metabolites of the deep-sea-derived fungus Samsoniella hepiali W7, leading to the isolation of three new fusaric acid derivatives, hepialiamides A-C (1-3) and one novel hybrid polyketide hepialide (4), together with 18 known miscellaneous compounds (5-22). The structures of the new compounds were elucidated through detailed spectroscopic analysis. as well as TD-DFT-based ECD calculation. All isolates were tested for anti-inflammatory activity in vitro. Under a concentration of 1 µM, compounds 8, 11, 13, 21, and 22 showed potent inhibitory activity against nitric oxide production in lipopolysaccharide (LPS)-activated BV-2 microglia cells, with inhibition rates of 34.2%, 30.7%, 32.9%, 38.6%, and 58.2%, respectively. Of particularly note is compound 22, which exhibited the most remarkable inhibitory activity, with an IC50 value of 426.2 nM.
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Affiliation(s)
- Zheng-Biao Zou
- Center for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China; (Z.-B.Z.); (W.-Y.L.)
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Tai-Zong Wu
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Long-He Yang
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (L.-H.Y.); (X.-W.H.)
| | - Xi-Wen He
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (L.-H.Y.); (X.-W.H.)
| | - Wen-Ya Liu
- Center for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China; (Z.-B.Z.); (W.-Y.L.)
| | - Kai Zhang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Chun-Lan Xie
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Ming-Min Xie
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Yong Zhang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Xian-Wen Yang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China; (T.-Z.W.); (K.Z.); (C.-L.X.); (M.-M.X.); (Y.Z.)
| | - Jun-Song Wang
- Center for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China; (Z.-B.Z.); (W.-Y.L.)
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3
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Walker KL, Loach RP, Movassaghi M. Total synthesis of complex 2,5-diketopiperazine alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2023; 90:159-206. [PMID: 37716796 PMCID: PMC10955524 DOI: 10.1016/bs.alkal.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/18/2023]
Abstract
The 2,5-diketopiperazine (DKP) motif is present in many biologically relevant, complex natural products. The cyclodipeptide substructure offers structural rigidity and stability to proteolysis that makes these compounds promising candidates for medical applications. Due to their fascinating molecular architecture, synthetic organic chemists have focused significant effort on the total synthesis of these compounds. This review covers many such efforts on the total synthesis of DKP containing complex alkaloid natural products.
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Affiliation(s)
- Katherine L Walker
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Richard P Loach
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, United States.
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Shende VV, Harris NR, Sanders JN, Newmister SA, Khatri Y, Movassaghi M, Houk KN, Sherman DH. Molecular Dynamics Simulations Guide Chimeragenesis and Engineered Control of Chemoselectivity in Diketopiperazine Dimerases. Angew Chem Int Ed Engl 2023; 62:e202210254. [PMID: 36610039 PMCID: PMC10159983 DOI: 10.1002/anie.202210254] [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: 07/13/2022] [Revised: 12/14/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
In the biosynthesis of the tryptophan-linked dimeric diketopiperazines (DKPs), cytochromes P450 selectively couple DKP monomers to generate a variety of intricate and isomeric frameworks. To determine the molecular basis for selectivity of these biocatalysts we obtained a high-resolution crystal structure of selective Csp2 -N bond forming dimerase, AspB. Overlay of the AspB structure onto C-C and C-N bond forming homolog NzeB revealed no significant structural variance to explain their divergent chemoselectivities. Molecular dynamics (MD) simulations identified a region of NzeB with increased conformational flexibility relative to AspB, and interchange of this region along with a single active site mutation led to a variant that catalyzes exclusive C-N bond formation. MD simulations also suggest that intermolecular C-C or C-N bond formation results from a change in mechanism, supported experimentally through use of a substrate mimic.
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Affiliation(s)
- Vikram V Shende
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Natalia R Harris
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, USA
| | - Sean A Newmister
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Yogan Khatri
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MÌ 48109, USA
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5
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Stelmasiewicz M, Świątek Ł, Gibbons S, Ludwiczuk A. Bioactive Compounds Produced by Endophytic Microorganisms Associated with Bryophytes—The “Bryendophytes”. Molecules 2023; 28:molecules28073246. [PMID: 37050009 PMCID: PMC10096483 DOI: 10.3390/molecules28073246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
The mutualistic coexistence between the host and endophyte is diverse and complex, including host growth regulation, the exchange of substances like nutrients or biostimulants, and protection from microbial or herbivore attack. The latter is commonly associated with the production by endophytes of bioactive natural products, which also possess multiple activities, including antibacterial, insecticidal, antioxidant, antitumor, and antidiabetic properties, making them interesting and valuable model substances for future development into drugs. The endophytes of higher plants have been extensively studied, but there is a dearth of information on the biodiversity of endophytic microorganisms associated with bryophytes and, more importantly, their bioactive metabolites. For the first time, we name bryophyte endophytes “bryendophytes” to elaborate on this important and productive source of biota. In this review, we summarize the current knowledge on the diversity of compounds produced by endophytes, emphasizing bioactive molecules from bryendophytes. Moreover, the isolation methods and biodiversity of bryendophytes from mosses, liverworts, and hornworts are described.
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Affiliation(s)
- Mateusz Stelmasiewicz
- Department of Pharmacognosy with the Medicinal Plant Garden, Medical University of Lublin, 20-093 Lublin, Poland
| | - Łukasz Świątek
- Department of Virology with Viral Diagnostics Laboratory, Medical University of Lublin, 20-093 Lublin, Poland
| | - Simon Gibbons
- Centre for Natural Products Discovery (CNPD), Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Agnieszka Ludwiczuk
- Department of Pharmacognosy with the Medicinal Plant Garden, Medical University of Lublin, 20-093 Lublin, Poland
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6
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Total synthesis of (+)-asperazine A: A stereoselective domino dimerization. Chem 2022. [DOI: 10.1016/j.chempr.2022.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Sun C, Tian W, Lin Z, Qu X. Biosynthesis of pyrroloindoline-containing natural products. Nat Prod Rep 2022; 39:1721-1765. [PMID: 35762180 DOI: 10.1039/d2np00030j] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Covering: up to 2022Pyrroloindoline is a privileged tricyclic indoline motif widely present in many biologically active and medicinally valuable natural products. Thus, understanding the biosynthesis of this molecule is critical for developing convenient synthetic routes, which is highly challenging for its chemical synthesis due to the presence of rich chiral centers in this molecule, especially the fully substituted chiral carbon center at the C3-position of its rigid tricyclic structure. In recent years, progress has been made in elucidating the biosynthetic pathways and enzymatic mechanisms of pyrroloindoline-containing natural products (PiNPs). This article reviews the main advances in the past few decades based on the different substitutions on the C3 position of PiNPs, especially the various key enzymatic mechanisms involved in the biosynthesis of different types of PiNPs.
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Affiliation(s)
- Chenghai Sun
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Wenya Tian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Zhi Lin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xudong Qu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, China
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8
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García-Domínguez P, Areal A, Alvarez R, de Lera AR. Chemical synthesis in competition with global genome mining and heterologous expression for the preparation of dimeric tryptophan-derived 2,5-dioxopiperazines. Nat Prod Rep 2022; 39:1172-1225. [PMID: 35470828 DOI: 10.1039/d2np00006g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covering: up to the end of 2021Within the 2,5-dioxopiperazines-containing natural products, those generated from tryptophan allow further structural diversification due to the rich chemical reactivity of the indole heterocycle. The great variety of natural products, ranging from simple dimeric bispyrrolidinoindoline dioxopiperazines and tryptophan-derived dioxopiperazine/pyrrolidinoindoline dioxopiperazine analogs to complex polycyclic downstream metabolites containing transannular connections between the subunits, will be covered. These natural products are constructed by Nature using hybrid polyketide synthase (PKS) and nonribosomal peptide synthetase (NRPS) assembly lines. Mining of microbial genome sequences has more recently allowed the study of the metabolic routes and the discovery of their hidden biosynthetic potential. The competition (ideally, also the combined efforts) between their isolation from the cultures of the producing microorganisms after global genome mining and heterologous expression and the synthetic campaigns, has more recently allowed the successful generation and structural confirmation of these natural products. Their biological activities as well as their proposed biogenetic routes and computational studies on biogenesis will also be covered.
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Affiliation(s)
| | - Andrea Areal
- CINBIO and Universidade de Vigo, 36310 Vigo, Spain.
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Phytochemical Profile and Anticancer Potential of Endophytic Microorganisms from Liverwort Species, Marchantia polymorpha L. Molecules 2021; 27:molecules27010153. [PMID: 35011384 PMCID: PMC8746834 DOI: 10.3390/molecules27010153] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/16/2021] [Accepted: 12/26/2021] [Indexed: 12/20/2022] Open
Abstract
Liverwort endophytes could be a source of new biologically active substances, especially when these spore-forming plants are known to produce compounds that are not found in other living organisms. Despite the significant development of plant endophytes research, there are only a few studies describing liverwort endophytic microorganisms and their metabolites. In the presented study, the analysis of the volatile compounds obtained from thallose liverwort species, Marchantia polymorpha L., and its endophytes was carried out. For this purpose, non-polar extracts of plant material and symbiotic microorganisms were obtained. The extracts were analyzed using gas chromatography coupled to mass spectrometry. Compounds with the structure of diketopiperazine in the endophyte extract were identified. Liverwort volatile extract was a rich source of cuparane-, chamigrane-, acorane-, and thujopsane-type sesquiterpenoids. The cytotoxicity of ethyl acetate extracts from endophytic microorganisms was evaluated on a panel of cancer (FaDu, HeLa, and SCC-25) cell lines and normal (VERO), and revealed significant anticancer potential towards hypopharyngeal squamous cell carcinoma and cervical adenocarcinoma.
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10
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Wu YM, Yang XQ, Zhao TD, Shi WZ, Sun LJ, Cen RH, Yang YB, Ding ZT. Antifeedant and Antifungal Activities of Metabolites Isolated from the Coculture of Endophytic Fungus Aspergillus tubingensis S1120 with Red Ginseng. Chem Biodivers 2021; 19:e202100608. [PMID: 34786852 DOI: 10.1002/cbdv.202100608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 11/16/2021] [Indexed: 11/06/2022]
Abstract
A new globoscinic acid derivative, aspertubin A (1) along with four known compounds, were obtained from the co-culture of Aspergillus tubingensis S1120 with red ginseng. The chemical structures of compounds were characterized by using spectroscopic methods, the calculated and experimental electronic circular dichroism. Panaxytriol (2) from red ginseng, and asperic acid (4) showed significant antifeedant effect with the antifeedant rates of 75 % and 80 % at the concentrations of 50 μg/cm2 . Monomeric carviolin (3) and asperazine (5) displayed weak attractant activity on silkworm. All compounds were assayed for antifungal activities against phytopathogens A. tubingensis, Nigrospora oryzae and Phoma herbarum and the results indicated that autotoxic aspertubin A (1) and panaxytriol (2) possessed selective inhibition against A. tubingensis with MIC values at 8 μg/mL. The co-culture extract showed higher antifeedant and antifungal activities against P. herbarum than those of monoculture of A. tubingensis in ordinary medium. So the medicinal plant and endophyte showed synergistic effect on the plant disease resistance by active compounds from the coculture of A. tubingensis S1120 and red ginseng.
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Affiliation(s)
- Ya-Mei Wu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Xue-Qiong Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Tong-De Zhao
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Wen-Zhi Shi
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Li-Jingfei Sun
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Rong-Huan Cen
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Ya-Bin Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China
| | - Zhong-Tao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming, 650091, P. R. China.,College of Pharmacy, Dali University, Dali, 671003, P. R. China
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11
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Yu R, Liu J, Wang Y, Wang H, Zhang H. Aspergillus niger as a Secondary Metabolite Factory. Front Chem 2021; 9:701022. [PMID: 34395379 PMCID: PMC8362661 DOI: 10.3389/fchem.2021.701022] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/28/2021] [Indexed: 12/23/2022] Open
Abstract
Aspergillus niger, one of the most common and important fungal species, is ubiquitous in various environments. A. niger isolates possess a large number of cryptic biosynthetic gene clusters (BGCs) and produce various biomolecules as secondary metabolites with a broad spectrum of application fields covering agriculture, food, and pharmaceutical industry. By extensive literature search, this review with a comprehensive summary on biological and chemical aspects of A. niger strains including their sources, BGCs, and secondary metabolites as well as biological properties and biosynthetic pathways is presented. Future perspectives on the discovery of more A. niger-derived functional biomolecules are also provided in this review.
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Affiliation(s)
- Ronglu Yu
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Jia Liu
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Yi Wang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Hong Wang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment and Utilization of Zhejiang Province, Hangzhou, China
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment and Utilization of Zhejiang Province, Hangzhou, China
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12
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Cai J, Nong X, Wang B, Zeng W, Huang G, Zhang Z, Zheng C. Three New Polyketides from the Culture of Mangrove-Derived FungusEupenicilliumsp. HJ002. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Quang TH, Phong NV, Anh LN, Hanh TTH, Cuong NX, Ngan NTT, Trung NQ, Nam NH, Minh CV. Secondary metabolites from a peanut-associated fungus Aspergillus niger IMBC-NMTP01 with cytotoxic, anti-inflammatory, and antimicrobial activities. Nat Prod Res 2020; 36:1215-1223. [DOI: 10.1080/14786419.2020.1868462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | - Nguyen Viet Phong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | - Le Ngoc Anh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | | | | | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi Vietnam
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14
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Bai M, Wang Y, Liu T, Lian YX, Bai QQ, Song XP, Han CR, Zheng CJ, Chen GY. One new piperazinedione isolated from a mangrove-derived fungus Aspergillus niger JX-5. Nat Prod Res 2020; 36:2277-2283. [PMID: 33016123 DOI: 10.1080/14786419.2020.1828407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
One new piperazinedione derivative, nigerpiperazine A (1), along with six known compounds (2-7) were isolated from the fungus Aspergillus niger JX-5 from mangrove Ceriops tagal. Nigerpiperazine A (1) was elucidated by spectroscopic analyses and 13C NMR chemical shift calculations, compounds 4 and 5 were determined by X-ray and the CD spectra. The absolute configuration of 4 was identified by X-ray for the first time. Compounds 1 and 4 showed inhibitory activities against Helicoverpa armigera Hubner with the IC50 values of 200 and 100 µg/mL, respectively.
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Affiliation(s)
- Meng Bai
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Yue Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Ting Liu
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Yu-Xing Lian
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Qi-Qi Bai
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Xiao-Ping Song
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Chang-Ri Han
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China.,Hainan Vocational University of Science and Technology, Haikou, People's Republic of China
| | - Cai-Juan Zheng
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
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15
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Shende VV, Khatri Y, Newmister SA, Sanders JN, Lindovska P, Yu F, Doyon TJ, Kim J, Houk KN, Movassaghi M, Sherman DH. Structure and Function of NzeB, a Versatile C-C and C-N Bond-Forming Diketopiperazine Dimerase. J Am Chem Soc 2020; 142:17413-17424. [PMID: 32786740 DOI: 10.1021/jacs.0c06312] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dimeric diketopiperazine (DKPs) alkaloids are a diverse family of natural products (NPs) whose unique structural architectures and biological activities have inspired the development of new synthetic methodologies to access these molecules. However, catalyst-controlled methods that enable the selective formation of constitutional and stereoisomeric dimers from a single monomer are lacking. To resolve this long-standing synthetic challenge, we sought to characterize the biosynthetic enzymes that assemble these NPs for application in biocatalytic syntheses. Genome mining enabled identification of the cytochrome P450, NzeB (Streptomyces sp. NRRL F-5053), which catalyzes both intermolecular carbon-carbon (C-C) and carbon-nitrogen (C-N) bond formation. To identify the molecular basis for the flexible site-selectivity, stereoselectivity, and chemoselectivity of NzeB, we obtained high-resolution crystal structures (1.5 Å) of the protein in complex with native and non-native substrates. This, to our knowledge, represents the first crystal structure of an oxidase catalyzing direct, intermolecular C-H amination. Site-directed mutagenesis was utilized to assess the role individual active-site residues play in guiding selective DKP dimerization. Finally, computational approaches were employed to evaluate plausible mechanisms regarding NzeB function and its ability to catalyze both C-C and C-N bond formation. These results provide a structural and computational rationale for the catalytic versatility of NzeB, as well as new insights into variables that control selectivity of CYP450 diketopiperazine dimerases.
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Affiliation(s)
| | | | | | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Petra Lindovska
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | | | | | - Justin Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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16
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Xu C, Xu K, Yuan XL, Ren GW, Wang XQ, Li W, Deng N, Wang XF, Zhang P. Characterization of diketopiperazine heterodimers as potential chemical markers for discrimination of two dominant black aspergilli, Aspergillus niger and Aspergillus tubingensis. PHYTOCHEMISTRY 2020; 176:112399. [PMID: 32408190 DOI: 10.1016/j.phytochem.2020.112399] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Black aspergilli are distributed worldwide and represent one of the most prolific sources of metabolites with biomedical and agrochemical interests. However, due to their similar morphological characteristics and insufficient molecular identification, the taxonomic classification of black aspergilli remains ill-defined. The production of specialised metabolites is often unique for species among black aspergilli and could be used as diagnostic chemical markers for species identification. In this study, chemical investigation of Aspergillus tubingensis OUCMBIII 143291 led to the discovery of the diagnostic chemical marker asperazine, a complex diketopiperazine heterodimer, as well as two previously undescribed analogues, asperazine B and C. In addition, an undescribed 2-benzylpyridin-4(1H)-one-containing amide, pestalamide D, along with four known related metabolites were isolated. Their chemical structures, including their absolute configurations, were established on the basis of comprehensive spectral analysis and chiral HPLC analysis of the acidic hydrolysates. Asperazines B and C can serve as potential chemical markers for distinguishing A. tubingensis from A. niger, two representative species of black aspergilli that are usually incorrectly identified. Moreover, the isolated compounds were evaluated for their antifungal activity against eight phytopathogenic fungi including Alternaria alternata, A. brassicae, Botrytis cinerea, Colletotrichum lagenarium, Fusarium oxysporum, Gaeumannomyces graminis, Penicillium digitatum, and Valsa mali. Pestalamide D exhibited significant activities against B. cinerea, C. lagenarium, and V. mali, with MIC values of 4, 8, and 8 μg/mL, respectively, compared with the positive controls carbendazim (MICs = 8, 4, and 4 μg/mL) and prochloraz (MICs = 8, 8, and 4 μg/mL). The results of this study reveal two additional chemical markers and provide a powerful tool for the rapid identification of black aspergilli.
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Affiliation(s)
- Ce Xu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Kuo Xu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Xiao-Long Yuan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Guang-Wei Ren
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Xiao-Qiang Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Wei Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, People's Republic of China
| | - Ning Deng
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Xiu-Fang Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.
| | - Peng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.
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17
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El-Hawary SS, Moawad AS, Bahr HS, Abdelmohsen UR, Mohammed R. Natural product diversity from the endophytic fungi of the genus Aspergillus. RSC Adv 2020; 10:22058-22079. [PMID: 35516645 PMCID: PMC9054607 DOI: 10.1039/d0ra04290k] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/04/2020] [Indexed: 12/16/2022] Open
Abstract
The endophytic fungus Aspergillus is considered as an enormous source of chemical leads with promising biological activities. Different Aspergillus species have proved their ability to produce plenty of secondary metabolites including butenolides, alkaloids, terpenoids, cytochalasins, phenalenones, ρ-terphenyls, xanthones, sterols, diphenyl ether and anthraquinone derivatives with diverse biological activities, such as anti-cancer, antifungal, anti-bacterial, anti-viral, anti-inflammatory, antitrypanosomal and antileishmanial activities. From January 2015 until December 2019, three hundred and sixty-one secondary metabolites were reported from different endophytic Aspergillus species. This review discusses the isolated secondary metabolites from different endophytic Aspergillus species reported from January 2015 to December 2019 along with their reported biological activities and structural aspects whenever applicable.
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Affiliation(s)
- Seham S El-Hawary
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University 11936 Cairo Egypt
| | - Abeer S Moawad
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University 62514 Beni-Suef Egypt
| | - Hebatallah S Bahr
- Department of Pharmacognosy, Faculty of Pharmacy, Nahda University 62513 Beni-Suef Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone P. O. Box 61111 New Minia City Minia Egypt
| | - Rabab Mohammed
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University 62514 Beni-Suef Egypt
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18
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Frisvad JC, Møller LLH, Larsen TO, Kumar R, Arnau J. Safety of the fungal workhorses of industrial biotechnology: update on the mycotoxin and secondary metabolite potential of Aspergillus niger, Aspergillus oryzae, and Trichoderma reesei. Appl Microbiol Biotechnol 2018; 102:9481-9515. [PMID: 30293194 PMCID: PMC6208954 DOI: 10.1007/s00253-018-9354-1] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
This review presents an update on the current knowledge of the secondary metabolite potential of the major fungal species used in industrial biotechnology, i.e., Aspergillus niger, Aspergillus oryzae, and Trichoderma reesei. These species have a long history of safe use for enzyme production. Like most microorganisms that exist in a challenging environment in nature, these fungi can produce a large variety and number of secondary metabolites. Many of these compounds present several properties that make them attractive for different industrial and medical applications. A description of all known secondary metabolites produced by these species is presented here. Mycotoxins are a very limited group of secondary metabolites that can be produced by fungi and that pose health hazards in humans and other vertebrates when ingested in small amounts. Some mycotoxins are species-specific. Here, we present scientific basis for (1) the definition of mycotoxins including an update on their toxicity and (2) the clarity on misclassification of species and their mycotoxin potential reported in literature, e.g., A. oryzae has been wrongly reported as an aflatoxin producer, due to misclassification of Aspergillus flavus strains. It is therefore of paramount importance to accurately describe the mycotoxins that can potentially be produced by a fungal species that is to be used as a production organism and to ensure that production strains are not capable of producing mycotoxins during enzyme production. This review is intended as a reference paper for authorities, companies, and researchers dealing with secondary metabolite assessment, risk evaluation for food or feed enzyme production, or considerations on the use of these species as production hosts.
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Affiliation(s)
- Jens C Frisvad
- Department of Biotechnology and Biomedicine (DTU Bioengineering), Technical University of Denmark, Søltofts Plads, B. 221, 2800, Kongens Lyngby, Denmark.
| | - Lars L H Møller
- Department of Product Safety, Novozymes A/S, Krogshoejvej 36, 2880, Bagsvaerd, Denmark
| | - Thomas O Larsen
- Department of Biotechnology and Biomedicine (DTU Bioengineering), Technical University of Denmark, Søltofts Plads, B. 221, 2800, Kongens Lyngby, Denmark
| | - Ravi Kumar
- Department of Genomics and Bioinformatics, Novozymes Inc., 1445 Drew Ave., Davis, CA, 95618, USA
| | - José Arnau
- Department of Fungal Strain Technology and Strain Approval Support, Novozymes A/S, Krogshoejvej 36, 2880, Bagsvaerd, Denmark
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19
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Li SJ, Zhang X, Wang XH, Zhao CQ. Novel natural compounds from endophytic fungi with anticancer activity. Eur J Med Chem 2018; 156:316-343. [PMID: 30015071 DOI: 10.1016/j.ejmech.2018.07.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/02/2018] [Accepted: 07/06/2018] [Indexed: 11/30/2022]
Abstract
Plant endophytes are microorganisms that live in healthy plant tissues in part or all of their life history without causing obvious symptoms of infection in the host plants. Endophytes, a new type of microbial resource that can produce a variety of biological constituents, have great values for research and broad prospects for development. This article reviewed the research and development progress of endophytic fungi with cytotoxic activity between 2014 and 2017, including endophytic fungi sources, microbial taxonomy, compound classification and cytotoxic activity. The results showed that the 109 strains of endophytic fungi belong to 3 phyla, 7 classes and 50 genera. The secondary metabolites mainly contained alkaloids, terpenes, steroids, polyketides, quinones, isocoumarins, esters etc. The results of this study provide references for the development of new antitumor drugs and endophytes resources.
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Affiliation(s)
- Shou-Jie Li
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Xuan Zhang
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Xiang-Hua Wang
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Chang-Qi Zhao
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China.
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20
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Choque E, Klopp C, Valiere S, Raynal J, Mathieu F. Whole-genome sequencing of Aspergillus tubingensis G131 and overview of its secondary metabolism potential. BMC Genomics 2018; 19:200. [PMID: 29703136 PMCID: PMC6389250 DOI: 10.1186/s12864-018-4574-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 03/02/2018] [Indexed: 01/01/2023] Open
Abstract
Background Black Aspergilli represent one of the most important fungal resources of primary and secondary metabolites for biotechnological industry. Having several black Aspergilli sequenced genomes should allow targeting the production of certain metabolites with bioactive properties. Results In this study, we report the draft genome of a black Aspergilli, A. tubingensis G131, isolated from a French Mediterranean vineyard. This 35 Mb genome includes 10,994 predicted genes. A genomic-based discovery identifies 80 secondary metabolites biosynthetic gene clusters. Genomic sequences of these clusters were blasted on 3 chosen black Aspergilli genomes: A. tubingensis CBS 134.48, A. niger CBS 513.88 and A. kawachii IFO 4308. This comparison highlights different levels of clusters conservation between the four strains. It also allows identifying seven unique clusters in A. tubingensis G131. Moreover, the putative secondary metabolites clusters for asperazine and naphtho-gamma-pyrones production were proposed based on this genomic analysis. Key biosynthetic genes required for the production of 2 mycotoxins, ochratoxin A and fumonisin, are absent from this draft genome. Even if intergenic sequences of these mycotoxins biosynthetic pathways are present, this could not lead to the production of those mycotoxins by A. tubingensis G131. Conclusions Functional and bioinformatics analyses of A. tubingensis G131 genome highlight its potential for metabolites production in particular for TAN-1612, asperazine and naphtho-gamma-pyrones presenting antioxidant, anticancer or antibiotic properties. Electronic supplementary material The online version of this article (10.1186/s12864-018-4574-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Elodie Choque
- Université de Toulouse, Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, avenue de l'Agrobiopôle, 31326, Castanet-Tolosan, France.,Present address: Unité de Recherche Biologie des Plantes et Innovation (BIOPI-EA 3900), Université de Picardie Jules Verne, 33 rue Saint Leu, 80039, Amiens Cedex, France
| | - Christophe Klopp
- Plate-forme Genotoul Bioinfo, UR875 Biométrie et Intelligence Artificielle, Institut National de la Recherche Agronomique, Castanet-Tolosan, France
| | - Sophie Valiere
- INRA, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - José Raynal
- Université de Toulouse, Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, avenue de l'Agrobiopôle, 31326, Castanet-Tolosan, France
| | - Florence Mathieu
- Université de Toulouse, Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, avenue de l'Agrobiopôle, 31326, Castanet-Tolosan, France.
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21
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Sun S, Ma K, Tao Q, Han J, Bao L, Liu L, Liu H. Diketopiperazines and 2H-pyran-2-ones with antioxidant activity from the rice fermented with Aspergillus luchuensis. Fitoterapia 2018; 125:266-272. [DOI: 10.1016/j.fitote.2018.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/22/2018] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
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22
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Reber KP, Burdge HE. Total Synthesis of Pyrophen and Campyrones A-C. JOURNAL OF NATURAL PRODUCTS 2018; 81:292-297. [PMID: 29363969 DOI: 10.1021/acs.jnatprod.7b00720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The first total syntheses of the natural products pyrophen and campyrones A-C, isolated from the fungus Aspergillus niger, have been achieved in six steps starting from commercially available N-Boc amino acids. Key steps in this sequence include a vinylogous Claisen condensation to achieve fragment coupling and a dioxinone thermolysis/cyclization cascade to form the α-pyrone ring. The route described herein afforded the natural products in 15-25% overall yield, furnishing sufficient material for testing in biological assays.
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Affiliation(s)
- Keith P Reber
- Department of Chemistry, Towson University , 8000 York Road, Towson, Maryland 21252, United States
| | - Hannah E Burdge
- Department of Chemistry, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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23
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Nelson BM, Loach RP, Schiesser S, Movassaghi M. Concise total synthesis of (+)-asperazine A and (+)-pestalazine B. Org Biomol Chem 2018; 16:202-207. [PMID: 29243756 PMCID: PMC5752586 DOI: 10.1039/c7ob02985c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The highly convergent total synthesis of dimeric diketopiperazine alkaloids (+)-asperazine A and (+)-pestalazine B is described. A critical aspect of our expedient route was the development of a directed regio- and diastereoselective C3-N1' coupling of complex tetracyclic diketopiperazine components. This late-stage heterodimerization reaction was made possible by design of tetracyclic diketopiperazines that allow C3-carbocation coupling of the electrophilic component to the N1' locus of the nucleophilic fragment. The application of this new coupling reaction to the first total synthesis of (+)-asperazine A led to our revision of the sign and magnitude of the optical rotation for the reported structure.
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Affiliation(s)
- Brandon M Nelson
- Massachusetts Institute of Technology, Department of Chemistry, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA.
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24
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Wang X, Li Y, Zhang X, Lai D, Zhou L. Structural Diversity and Biological Activities of the Cyclodipeptides from Fungi. Molecules 2017; 22:E2026. [PMID: 29168781 PMCID: PMC6149763 DOI: 10.3390/molecules22122026] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/15/2017] [Indexed: 11/17/2022] Open
Abstract
Cyclodipeptides, called 2,5-diketopiperazines (2,5-DKPs), are obtained by the condensation of two amino acids. Fungi have been considered to be a rich source of novel and bioactive cyclodipeptides. This review highlights the occurrence, structures and biological activities of the fungal cyclodipeptides with the literature covered up to July 2017. A total of 635 fungal cyclodipeptides belonging to the groups of tryptophan-proline, tryptophan-tryptophan, tryptophan-Xaa, proline-Xaa, non-tryptophan-non-proline, and thio-analogs have been discussed and reviewed. They were mainly isolated from the genera of Aspergillus and Penicillium. More and more cyclodipeptides have been isolated from marine-derived and plant endophytic fungi. Some of them were screened to have cytotoxic, phytotoxic, antimicrobial, insecticidal, vasodilator, radical scavenging, antioxidant, brine shrimp lethal, antiviral, nematicidal, antituberculosis, and enzyme-inhibitory activities to show their potential applications in agriculture, medicinal, and food industry.
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Affiliation(s)
- Xiaohan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Yuying Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Xuping Zhang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
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25
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Kishimoto S, Sato M, Tsunematsu Y, Watanabe K. Evaluation of Biosynthetic Pathway and Engineered Biosynthesis of Alkaloids. Molecules 2016; 21:E1078. [PMID: 27548127 PMCID: PMC6274189 DOI: 10.3390/molecules21081078] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/15/2016] [Accepted: 08/15/2016] [Indexed: 01/13/2023] Open
Abstract
Varieties of alkaloids are known to be produced by various organisms, including bacteria, fungi and plants, as secondary metabolites that exhibit useful bioactivities. However, understanding of how those metabolites are biosynthesized still remains limited, because most of these compounds are isolated from plants and at a trace level of production. In this review, we focus on recent efforts in identifying the genes responsible for the biosynthesis of those nitrogen-containing natural products and elucidating the mechanisms involved in the biosynthetic processes. The alkaloids discussed in this review are ditryptophenaline (dimeric diketopiperazine alkaloid), saframycin (tetrahydroisoquinoline alkaloid), strictosidine (monoterpene indole alkaloid), ergotamine (ergot alkaloid) and opiates (benzylisoquinoline and morphinan alkaloid). This review also discusses the engineered biosynthesis of these compounds, primarily through heterologous reconstitution of target biosynthetic pathways in suitable hosts, such as Escherichia coli, Saccharomyces cerevisiae and Aspergillus nidulans. Those heterologous biosynthetic systems can be used to confirm the functions of the isolated genes, economically scale up the production of the alkaloids for commercial distributions and engineer the biosynthetic pathways to produce valuable analogs of the alkaloids. In particular, extensive involvement of oxidation reactions catalyzed by oxidoreductases, such as cytochrome P450s, during the secondary metabolite biosynthesis is discussed in details.
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Affiliation(s)
- Shinji Kishimoto
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan.
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan.
| | - Yuta Tsunematsu
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan.
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan.
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26
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Loach RP, Fenton OS, Movassaghi M. Concise Total Synthesis of (+)-Asperazine, (+)-Pestalazine A, and (+)-iso-Pestalazine A. Structure Revision of (+)-Pestalazine A. J Am Chem Soc 2016; 138:1057-64. [PMID: 26726924 PMCID: PMC4908971 DOI: 10.1021/jacs.5b12392] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The concise, enantioselective total syntheses of (+)-asperazine (1), (+)-iso-pestalazine A (2), and (+)-pestalazine A (3) have been achieved by the development of a late-stage C3-C8' Friedel-Crafts union of polycyclic diketopiperazines. Our modular strategy enables the union of complex polycyclic diketopiperazines in virtually their final forms, thus providing rapid and highly convergent assembly at the challenging quaternary stereocenter of these dimeric alkaloids. The significance of this carbon-carbon bond formation can be gauged by the manifold constraints that were efficiently overcome, namely the substantial steric crowding at both reactive sites, the nucleophilic addition of C8' over N1' to the C3 carbocation, and the multitude of reactivity posed by the use of complex diketopiperazine fragments in the coupling event. The success of the indoline π-nucleophile that evolved through our studies is notable given the paucity of competing reaction pathways observed in the presence of the highly reactive C3 carbocation generated. This first total synthesis of (+)-pestalazine A also allowed us to revise the molecular structure for this natural alkaloid.
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Affiliation(s)
- Richard P. Loach
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Owen S. Fenton
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Frisvad JC, Larsen TO. Chemodiversity in the genus Aspergillus. Appl Microbiol Biotechnol 2015; 99:7859-77. [DOI: 10.1007/s00253-015-6839-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/08/2015] [Accepted: 07/11/2015] [Indexed: 10/23/2022]
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