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Kim HW, Lee JW, Shim SH. Biosynthesis, biological activities, and structure-activity relationships of decalin-containing tetramic acid derivatives isolated from fungi. Nat Prod Rep 2024. [PMID: 38916377 DOI: 10.1039/d4np00013g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Covering: up to December 2023Decalin-containing tetramic acid derivatives, especially 3-decalinoyltetramic acids (3-DTAs), are commonly found as fungal secondary metabolites. Numerous biological activities of this class of compounds, such as antibiotic, antiviral, antifungal, antiplasmodial, and antiprotozoal properties, have been the subject of ongoing research. For this reason, these molecules have attracted a lot of interest from the scientific community and various efforts including semi-synthesis, co-culturing with bacteria and biosynthetic gene sequencing have been made to obtain more derivatives. In this review, 3-DTAs are classified into four major groups based on the absolute configuration of the bicyclic decalin ring. Their biosynthetic pathways, various biological activities, and structure-activity relationship are then introduced.
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Affiliation(s)
- Hyun Woo Kim
- College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| | - Jin Woo Lee
- College of Pharmacy, Dongguk University, Goyang, Republic of Korea.
| | - Sang Hee Shim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.
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2
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Shaaban S, Althikrallah HA, Negm A, Abo Elmaaty A, Al-Karmalawy AA. Repurposed organoselenium tethered amidic acids as apoptosis inducers in melanoma cancer via P53, BAX, caspases-3, 6, 8, 9, BCL-2, MMP2, and MMP9 modulations. RSC Adv 2024; 14:18576-18587. [PMID: 38860260 PMCID: PMC11164031 DOI: 10.1039/d4ra02944e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Accepted: 06/03/2024] [Indexed: 06/12/2024] Open
Abstract
Organoselenium (OSe) agents hold promise for preventing cancer due to their potential ability to fight cancer development and protect cells from oxidative damage. Herein, OSe-based maleanilic and succinanilic acids were tested to estimate their antitumor activities against fifteen cancer cell lines. Besides, their potential safety and selectivity were further investigated against two normal cell lines, namely, human skin fibroblasts (HSF) and olfactory ensheathing cell line (OEC) using the growth inhibition percentage (GI%) assay. Moreover, the apoptotic potential of the superior anticancer candidates (8, 9, 10, and 11) was evaluated against P53, BAX, Caspase-3, Caspase-6, Caspase-8, Caspase-9, BCL-2, MMP2, and MMP9 apoptotic markers. Additionally, to enhance our understanding and predict the inhibitory potential of the examined compounds as potential anticancer agents, a thorough structure-activity relationship (SAR) analysis was conducted. On the other hand, molecular docking and ADMET studies were performed for the examined candidates as well. Overall, our findings point to significant anticancer activities of the organoselenium tethered amidic acids, suggesting their promising cytotoxic potential as effective anticancer drugs.
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Affiliation(s)
- Saad Shaaban
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University 35516 Mansoura Egypt
| | - Hanan A Althikrallah
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia
| | - Amr Negm
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia
| | - Ayman Abo Elmaaty
- Medicinal Chemistry Department, Faculty of Pharmacy, Port Said University Port Said 42511 Egypt
| | - Ahmed A Al-Karmalawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt New Damietta 34518 Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University 6th of October City Giza 12566 Egypt
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3
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Chen Y, Sewsurn S, Amand S, Kunz C, Pietrancosta N, Calabro K, Buisson D, Mann S. Metabolic Investigation and Auxiliary Enzyme Modelization of the Pyrrocidine Pathway Allow Rationalization of Paracyclophane-Decahydrofluorene Formation. ACS Chem Biol 2024; 19:886-895. [PMID: 38576157 DOI: 10.1021/acschembio.3c00684] [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: 04/06/2024]
Abstract
Fungal paracyclophane-decahydrofluorene-containing natural products are complex polycyclic metabolites derived from similar hybrid PKS-NRPS pathways. Herein we studied the biosynthesis of pyrrocidines, one representative of this family, by gene inactivation in the producer Sarocladium zeae coupled to thorough metabolic analysis and molecular modeling of key enzymes. We characterized nine pyrrocidines and analogues as well as in mutants a variety of accumulating metabolites with new structures including rare cis-decalin, cytochalasan, and fused 6/15/5 macrocycles. This diversity highlights the extraordinary plasticity of the pyrrocidine biosynthetic gene cluster. From accumulating metabolites, we delineated the scenario of pyrrocidine biosynthesis. The ring A of the decahydrofluorene is installed by PrcB, a membrane-bound cyclizing isomerase, on a PKS-NRPS-derived pyrrolidone precursor. Docking experiments in PrcB allowed us to characterize the active site suggesting a mechanism triggered by arginine-mediated deprotonation at the terminal methyl of the substrate. Next, two integral membrane proteins, PrcD and PrcE, each predicted as a four-helix bundle, perform hydroxylation of the pyrrolidone ring and paracyclophane formation, respectively. Modelization of PrcE highlights a topological homology with vitamin K oxido-reductase and the presence of a disulfide bond. Our results suggest a previously unsuspected coupling mechanism via a transient loss of aromaticity of tyrosine residue to form the strained paracyclophane motif. Finally, the lipocalin-like protein PrcX drives the exo-cycloaddition yielding ring B and C of the decahydrofluorene to afford pyrrocidine A, which is transformed by a reductase PrcI to form pyrrocidine B. These insights will greatly facilitate the microbial production of pyrrocidine analogues by synthetic biology.
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Affiliation(s)
- Youwei Chen
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
| | - Steffi Sewsurn
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
| | - Séverine Amand
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
| | - Caroline Kunz
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
- Sorbonne Université, Faculté des Sciences et Ingénierie, UFR 927, F-75005 Paris, France
| | - Nicolas Pietrancosta
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École Normale Supérieure, PSL University, CNRS, F-75005 Paris, France
- Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), Sorbonne Université, INSERM, CNRS, F-75005 Paris, France
| | - Kevin Calabro
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
| | - Didier Buisson
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
| | - Stéphane Mann
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Universités; CP54, 57 rue Cuvier, 75005 Paris, France
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4
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Deng SH, Zhao SY, Huang YY, Chang MR, Dong ZB. Glyoxylic Acid Monohydrate-Promoted Formation of the C-SO 2 Bond Starting from Maleimides/Quinones and Sodium Sulfinates. J Org Chem 2023; 88:15925-15936. [PMID: 37939006 DOI: 10.1021/acs.joc.3c02113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
By using glyoxylic acid monohydrate as a promoter, a wide range of substances containing a C-SO2 bond could be obtained from N-substituted maleimides or quinones and sodium sulfinates. The protocol features mild reaction conditions, short reaction time, and good atomic economics, which provides an alternative protocol for the α-sulfonylation of α,β-unsaturated ketones.
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Affiliation(s)
- Shi-Hao Deng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shi-Yi Zhao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Yi-Yun Huang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Meng-Ran Chang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
- Key Laboratory of Green Chemical Process, Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
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5
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Murphy A, Corney M, Monson RE, Matilla MA, Salmond GPC, Leeper FJ. Biosynthesis of Antifungal Solanimycin May Involve an Iterative Nonribosomal Peptide Synthetase Module. ACS Chem Biol 2023; 18:1148-1157. [PMID: 37068480 PMCID: PMC10204066 DOI: 10.1021/acschembio.2c00947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 04/05/2023] [Indexed: 04/19/2023]
Abstract
Dickeya solani, a plant-pathogenic bacterium, produces solanimycin, a potent hybrid polyketide/nonribosomal peptide (PKS/NRPS) anti-fungal compound. The biosynthetic gene cluster responsible for synthesis of this compound has been identified. Because of instability, the complete structure of the compound has not yet been elucidated, but LC-MS2 identified that the cluster produces two main compounds, solanimycin A and B, differing by a single hydroxyl group. The fragmentation pattern revealed that the central part of solanimycin A is a hexapeptide, Gly-Dha-Dha-Dha-Dha-Dha (where Dha is dehydroalanine). This is supported by isotopic labeling studies using labeled serine and glycine. The N-terminal group is a polyketide-derived C16 acyl group containing a conjugated hexaene, a hydroxyl, and an amino group. The additional hydroxyl group in solanimycin B is on the α-carbon of the glycine residue. The incorporation of five sequential Dha residues is unprecedented because there is only one NRPS module in the cluster that is predicted to activate and attach serine (which is subsequently dehydrated to Dha), meaning that this NRPS module must act iteratively. While a few other iterative NRPS modules are known, they all involve iteration of two or three modules. We believe that the repetitive use of a single module makes the solanimycin biosynthetic pathway unique among NRPSs so far reported.
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Affiliation(s)
- Annabel
C. Murphy
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Matthew Corney
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Rita E. Monson
- Department
of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, U.K.
| | - Miguel A. Matilla
- Department
of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, U.K.
| | - George P. C. Salmond
- Department
of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, U.K.
| | - Finian J. Leeper
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
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6
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Prabakaran K, Manivannan R, Son YA. A novel fluorophore with multichromic effect and its application in LED light for the volatile vapor detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122813. [PMID: 37172396 DOI: 10.1016/j.saa.2023.122813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/01/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023]
Abstract
Successfully designed and synthesized diaryl maleimide DAM, and their structure was confirmed by mass spectroscopy and NMR techniques. They investigated their photophysical properties, such as solvatochromic and the aggregation effect of AIE/ACQ on the water/DMF ratio, and other studies of solid-state mechanofluorochromic, such as grinding, exposure to solvent fumes, hydrostatic pressures, and vapochromic. Interestingly, the solvent methods gave very similar results in both the dissolving phase and the vapor phase. For the solution state from hexane to CH2Cl2, a greenish-yellow to orange emission was observed. From hexane to dichloromethane, naked-eye colorimetric changes (from yellow to orange in a solid state) were observed. Very interesting results were obtained, the yellow solid was ground for 1 min, it turned into an orange color, and its wavelengths were red-shifted in both absorption and emission. Subsequently, the ground sample was exposed to diethyl ether vapors, which returned to the original green-yellow emission and absorption. The applied hydrostatic pressures (0-4Mpa) in DAM gave excellent red-shifted emission, and then their hydrostatic pressures were increased to 4-16 Mpa, and the red-shifted emission gradually decreased.
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Affiliation(s)
- Kaliyan Prabakaran
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Ramalingam Manivannan
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Young-A Son
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.
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7
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Wang WK, Bao FY, Wang ST, Zhao SY. Access to 3-Aminomethylated Maleimides via a Phosphine-Catalyzed Aza-Morita-Baylis-Hillman Type Coupling. J Org Chem 2023. [PMID: 37114576 DOI: 10.1021/acs.joc.3c00284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
A designed method for the preparation of 3-aminomethylated maleimides via Morita-Baylis-Hillman (MBH) reaction was developed. This phosphine-catalyzed coupling adopted maleimides and 1,3,5-triazinanes as the substrate, giving a series of 3-aminomethylated maleimide derivatives with a double bond retained on the maleimide ring in 41-90% yield. Acylation, isomerization, and Michael addition of the obtained products demonstrated the synthetic application of the present protocol. The results of control experiments indicated that phosphorus ylide formation and elimination take place during the reaction pathway.
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Affiliation(s)
- Wen-Kang Wang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Fei-Yun Bao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Si-Tian Wang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Sheng-Yin Zhao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
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8
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Aksenov NA, Aksenov DA, Ganusenko DD, Kurenkov IA, Leontiev AV, Aksenov AV. Synthesis of 2-carboxyaniline-substituted maleimides from 2'-nitrochalcones. Org Biomol Chem 2023; 21:3156-3166. [PMID: 36945887 DOI: 10.1039/d3ob00197k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
A practical, one-pot approach to 3-anilino-4-(het)arylmaleimides by simple heating of aqueous DMSO solution of 2'-nitrochalcones with potassium cyanide in the presence of formic acid has been developed. This new reaction provides effective access to a variety of β-substituted α-aminomaleimides which have recently become a subject of growing interest as small, easily modified and environmentally responsive fluorescent probes.
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Affiliation(s)
- Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
| | - Dmitrii A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
| | - Daniil D Ganusenko
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
| | - Igor A Kurenkov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
| | - Alexander V Leontiev
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
| | - Alexander V Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation.
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Hou A, Dickschat JS. Labelling studies in the biosynthesis of polyketides and non-ribosomal peptides. Nat Prod Rep 2023; 40:470-499. [PMID: 36484402 DOI: 10.1039/d2np00071g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering: 2015 to 2022In this review, we discuss the recent advances in the use of isotopically labelled compounds to investigate the biosynthesis of polyketides, non-ribosomally synthesised peptides, and their hybrids. Also, we highlight the use of isotopes in the elucidation of their structures and investigation of enzyme mechanisms. The biosynthetic pathways of selected examples are presented in detail to reveal the principles of the discussed labelling experiments. The presented examples demonstrate that the application of isotopically labelled compounds is still the state of the art and can provide valuable information for the biosynthesis of natural products.
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Affiliation(s)
- Anwei Hou
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, West 7th Avenue No. 32, 300308 Tianjin, China.,Institute of Microbiology, Jiangxi Academy of Sciences, Changdong Road No. 7777, 330096 Nanchang, China
| | - Jeroen S Dickschat
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
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Kirchgaessner L, Wurlitzer JM, Seibold PS, Rakhmanov M, Gressler M. A genetic tool to express long fungal biosynthetic genes. Fungal Biol Biotechnol 2023; 10:4. [PMID: 36726159 PMCID: PMC9893682 DOI: 10.1186/s40694-023-00152-3] [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: 12/12/2022] [Accepted: 01/22/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Secondary metabolites (SMs) from mushroom-forming fungi (Basidiomycota) and early diverging fungi (EDF) such as Mucoromycota are scarcely investigated. In many cases, production of SMs is induced by unknown stress factors or is accompanied by seasonable developmental changes on fungal morphology. Moreover, many of these fungi are considered as non-culturable under laboratory conditions which impedes investigation into SM. In the post-genomic era, numerous novel SM genes have been identified especially from EDF. As most of them encode multi-module enzymes, these genes are usually long which limits cloning and heterologous expression in traditional hosts. RESULTS An expression system in Aspergillus niger is presented that is suitable for the production of SMs from both Basidiomycota and EDF. The akuB gene was deleted in the expression host A. niger ATNT∆pyrG, resulting in a deficient nonhomologous end-joining repair mechanism which in turn facilitates the targeted gene deletion via homologous recombination. The ∆akuB mutant tLK01 served as a platform to integrate overlapping DNA fragments of long SM genes into the fwnA locus required for the black pigmentation of conidia. This enables an easy discrimination of correct transformants by screening the transformation plates for fawn-colored colonies. Expression of the gene of interest (GOI) is induced dose-dependently by addition of doxycycline and is enhanced by the dual TetON/terrein synthase promoter system (ATNT) from Aspergillus terreus. We show that the 8 kb polyketide synthase gene lpaA from the basidiomycete Laetiporus sulphureus is correctly assembled from five overlapping DNA fragments and laetiporic acids are produced. In a second approach, we expressed the yet uncharacterized > 20 kb nonribosomal peptide synthetase gene calA from the EDF Mortierella alpina. Gene expression and subsequent LC-MS/MS analysis of mycelial extracts revealed the production of the antimycobacterial compound calpinactam. This is the first report on the heterologous production of a full-length SM multidomain enzyme from EDF. CONCLUSIONS The system allows the assembly, targeted integration and expression of genes of > 20 kb size in A. niger in one single step. The system is suitable for evolutionary distantly related SM genes from both Basidiomycota and EDF. This uncovers new SM resources including genetically intractable or non-culturable fungi.
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Affiliation(s)
- Leo Kirchgaessner
- grid.9613.d0000 0001 1939 2794Institute of Pharmacy, Department Pharmaceutical Microbiology, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.418398.f0000 0001 0143 807XDepartment Pharmaceutical Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.413047.50000 0001 0658 7859Faculty Medical Technology and Biotechnology, Ernst Abbe University of Applied Sciences Jena, Carl-Zeiss-Promenade 2, 07745 Jena, Germany
| | - Jacob M. Wurlitzer
- grid.9613.d0000 0001 1939 2794Institute of Pharmacy, Department Pharmaceutical Microbiology, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.418398.f0000 0001 0143 807XDepartment Pharmaceutical Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Winzerlaer Strasse 2, 07745 Jena, Germany
| | - Paula S. Seibold
- grid.9613.d0000 0001 1939 2794Institute of Pharmacy, Department Pharmaceutical Microbiology, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.418398.f0000 0001 0143 807XDepartment Pharmaceutical Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Winzerlaer Strasse 2, 07745 Jena, Germany
| | - Malik Rakhmanov
- grid.9613.d0000 0001 1939 2794Institute of Pharmacy, Department Pharmaceutical Microbiology, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.418398.f0000 0001 0143 807XDepartment Pharmaceutical Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Winzerlaer Strasse 2, 07745 Jena, Germany
| | - Markus Gressler
- grid.9613.d0000 0001 1939 2794Institute of Pharmacy, Department Pharmaceutical Microbiology, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany ,grid.418398.f0000 0001 0143 807XDepartment Pharmaceutical Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Winzerlaer Strasse 2, 07745 Jena, Germany
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11
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Chiang CY, Ohashi M, Tang Y. Deciphering chemical logic of fungal natural product biosynthesis through heterologous expression and genome mining. Nat Prod Rep 2023; 40:89-127. [PMID: 36125308 PMCID: PMC9906657 DOI: 10.1039/d2np00050d] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Covering: 2010 to 2022Heterologous expression of natural product biosynthetic gene clusters (BGCs) has become a widely used tool for genome mining of cryptic pathways, bottom-up investigation of biosynthetic enzymes, and engineered biosynthesis of new natural product variants. In the field of fungal natural products, heterologous expression of a complete pathway was first demonstrated in the biosynthesis of tenellin in Aspergillus oryzae in 2010. Since then, advances in genome sequencing, DNA synthesis, synthetic biology, etc. have led to mining, assignment, and characterization of many fungal BGCs using various heterologous hosts. In this review, we will highlight key examples in the last decade in integrating heterologous expression into genome mining and biosynthetic investigations. The review will cover the choice of heterologous hosts, prioritization of BGCs for structural novelty, and how shunt products from heterologous expression can reveal important insights into the chemical logic of biosynthesis. The review is not meant to be exhaustive but is rather a collection of examples from researchers in the field, including ours, that demonstrates the usefulness and pitfalls of heterologous biosynthesis in fungal natural product discovery.
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Affiliation(s)
- Chen-Yu Chiang
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Masao Ohashi
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Yi Tang
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
- Dept. of Chemistry and Biochemistry, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA
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12
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Li HT, Yang RN, Liu T, Xie F, Duan HJ, Xia DD, Zhou H, Ding ZT. Fungal polyketides from a rhizospheric soil-derived Penicillium sp. YUD17004 associated with Gastrodia elata. PHYTOCHEMISTRY 2023; 205:113475. [PMID: 36270411 DOI: 10.1016/j.phytochem.2022.113475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Five unprecedented polyketide metabolites were isolated and characterized from a rhizospheric soil-derived Penicillium sp. YUD17004. Their diverse structures included two indanone-type polyketides penicillyketides A and B, a phthalide-like polyketides penicillyketide C, a symmetrical chromone dimer penicillyketide D, along with a pyrone derivative pyranlyketide, which were elucidated by spectroscopic data interpretation and quantum chemical electronic circular dichroism calculation. Notably, the structures of penicillyketides A and B feature a highly functionalized indanone ring nucleus, but differ from other indanone-containing polyketides by the alkyl substitution pattern. The structure of penicillyketide C comprises a furanone ring instead of the hydroxycyclopentenone ring characteristic for penicillyketides A and B, and represents an undescribed arrangement within C17 polyketides. Penicillyketide D represented the first example of a chromone homodimer with the bridge at C-2/2'. Penicillyketide B exhibited weak anti-inflammatory activity with an IC50 value of 32 ± 1.0 μM. Penicillyketide D displayed weak cytotoxicity against MCF-7 cell line with an IC50 value of 25 ± 0.9 μM.
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Affiliation(s)
- Hong-Tao Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Rui-Ning Yang
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Tao Liu
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Fei Xie
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Hao-Jie Duan
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Dan-Dan Xia
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Hao Zhou
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Zhong-Tao Ding
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China; College of Pharmacy, Dali University, Dali, 671000, China.
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Pham HM, Le DT, Le LT, Chu PTM, Tran LH, Pham TT, Nguyen HM, Luu TT, Hoang H, Chu HH. A highly quality genome sequence of Penicillium oxalicum species isolated from the root of Ixora chinensis in Vietnam. G3 (BETHESDA, MD.) 2022; 13:6858938. [PMID: 36454044 PMCID: PMC9911084 DOI: 10.1093/g3journal/jkac300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 12/02/2022]
Abstract
Penicillium oxalicum has been reported as a multienzyme-producing fungus and is widely used in industry due to great potential for cellulase release. Until now, there are only 10 available genome assemblies of P. oxalicum species deposited in the GenBank database. In this study, the genome of the I1R1 strain isolated from the root of Ixora chinensis was completely sequenced by Pacbio Sequel sequencing technology, assembled into 8 chromosomes with the genome size of 30.8 Mb, as well as a mitogenome of 26 kb. The structural and functional analyses of the I1R1 genome revealed gene model annotations encoding an enzyme set involved in significant metabolic processes, along with cytochrome P450s and secondary metabolite biosynthesis. The comparative analysis of the P. oxalicum species based on orthology and gene family duplications indicated their large and closed pan-genome of 9,500 orthologous groups. This is valuable data for future phylogenetic and population genomics studies.
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Affiliation(s)
- Huong Mai Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Dung Thi Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Lam Tung Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Phuong Thi Minh Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Linh Huyen Tran
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Tung Thanh Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Hung Mau Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Tien Thuy Luu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Ha Hoang
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Hoang Ha Chu
- Corresponding authors: Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi 10072, Vietnam.
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14
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Zhang T, Cai G, Rong X, Xu J, Jiang B, Wang H, Li X, Wang L, Zhang R, He W, Yu L. Mining and characterization of the PKS-NRPS hybrid for epicoccamide A: a mannosylated tetramate derivative from Epicoccum sp. CPCC 400996. Microb Cell Fact 2022; 21:249. [PMID: 36419162 PMCID: PMC9685919 DOI: 10.1186/s12934-022-01975-2] [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: 10/10/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Genomic analysis indicated that the genomes of ascomycetes might carry dozens of biosynthetic gene clusters (BGCs), yet many clusters have remained enigmatic. The ascomycete genus Epicoccum, belonging to the family Didymellaceae, is ubiquitous that colonizes different types of substrates and is associated with phyllosphere or decaying vegetation. Species of this genus are prolific producers of bioactive substances. The epicoccamides, as biosynthetically distinct mannosylated tetramate, were first isolated in 2003 from Epicoccum sp. In this study, using a combination of genome mining, chemical identification, genetic deletion, and bioinformatic analysis, we identified the required BGC epi responsible for epicoccamide A biosynthesis in Epicoccum sp. CPCC 400996. RESULTS The unconventional biosynthetic gene cluster epi was obtained from an endophyte Epicoccum sp. CPCC 400996 through AntiSMASH-based genome mining. The cluster epi includes six putative open reading frames (epiA-epiF) altogether, in which the epiA encodes a tetramate-forming polyketide synthase and nonribosomal peptide synthetases (PKS-NRPS hybrid). Sequence alignments and bioinformatic analysis to other metabolic pathways of fungal tetramates, we proposed that the gene cluster epi could be involved in generating epicoccamides. Genetic knockout of epiA completely abolished the biosynthesis of epicoccamide A (1), thereby establishing the correlation between the BGC epi and biosynthesis of epicoccamide A. Bioinformatic adenylation domain signature analysis of EpiA and other fungal PKS-NRPSs (NRPs) indicated that the EpiA is L-alanine incorporating tetramates megasynthase. Furthermore, based on the molecular structures of epicoccamide A and deduced gene functions of the cluster epi, a hypothetic metabolic pathway for biosynthesizing compound 1 was proposed. The corresponding tetramates releasing during epicoccamide A biosynthesis was catalyzed through Dieckmann-type cyclization, in which the reductive (R) domain residing in terminal module of EpiA accomplished the conversion. These results unveiled the underlying mechanism of epicoccamides biosynthesis and these findings might provide opportunities for derivatization of epicoccamides or generation of new chemical entities. CONCLUSION Genome mining and genetic inactivation experiments unveiled a previously uncharacterized PKS - NRPS hybrid-based BGC epi responsible for the generation of epicoccamide A (1) in endophyte Epicoccum sp. CPCC 400996. In addition, based on the gene cluster data, a hypothetical biosynthetic pathway of epicoccamide A was proposed.
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Affiliation(s)
- Tao Zhang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Guowei Cai
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China ,grid.452240.50000 0004 8342 6962Medical Research Center, Binzhou Medical University Hospital, Binzhou, 256603 Shandong China
| | - Xiaoting Rong
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China ,grid.510447.30000 0000 9970 6820College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212003 Jiangsu China
| | - Jingwen Xu
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Bingya Jiang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Hao Wang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Xinxin Li
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Lu Wang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Ran Zhang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Wenni He
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
| | - Liyan Yu
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050 China
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15
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Yu C, Chen L, Gao YL, Liu J, Li PL, Zhang ML, Li Q, Zhang HD, Tang MC, Li L. Discovery and biosynthesis of macrophasetins from the plant pathogen fungus Macrophomina phaseolina. Front Microbiol 2022; 13:1056392. [PMID: 36452919 PMCID: PMC9701702 DOI: 10.3389/fmicb.2022.1056392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/17/2022] [Indexed: 09/16/2023] Open
Abstract
3-Decalinoyltetramic acids (DTAs) are a class of natural products with chemical diversity and potent bioactivities. In fungal species there is a general biosynthetic route to synthesize this type of compounds, which usually features a polyketide synthase-nonribosomal peptide synthetase (PKS-NRPS) and a lipocalin-like Diels-Alderase (LLDAse). Using a synthetic biology approach, combining the bioinformatics analysis prediction and heterologous expression, we mined a PKS-NRPS and LLDAse encoding gene cluster from the plant pathogenic fungus Macrophomina phaseolina and characterized the cluster to be responsible for the biosynthesis of novel DTAs, macrophasetins. In addition, we investigated the biosynthesis of these compounds and validated the accuracy of the phylogeny-guided bioinformatics analysis prediction. Our results provided a proof of concept example to this approach, which may facilitate the discovery of novel DTAs from the fungal kingdom.
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Affiliation(s)
- Cui Yu
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Lin Chen
- 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, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Le Gao
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Jia Liu
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Pei Lin Li
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Ming Liang Zhang
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Qin Li
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Huai Dong Zhang
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Man Cheng Tang
- 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, China
- Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, China
| | - Li Li
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University, Fuzhou, China
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16
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Sayari M, Dolatabadian A, El-Shetehy M, Rehal PK, Daayf F. Genome-Based Analysis of Verticillium Polyketide Synthase Gene Clusters. BIOLOGY 2022; 11:biology11091252. [PMID: 36138731 PMCID: PMC9495618 DOI: 10.3390/biology11091252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary Fungi can produce many types of secondary metabolites, including mycotoxins. Poisonous mushrooms and mycotoxins that cause food spoilage have been known for a very long time. For example, Aspergillus flavus, which can grow on grains and nuts, produces highly toxic substances called Aflatoxins. Despite their menace to other living organisms, mycotoxins can be used for medicinal purposes, i.e., as antibiotics, growth-promoting compounds, and other kinds of drugs. These and other secondary metabolites produced by plant-pathogenic fungi may cause host plants to display disease symptoms and may play a substantial role in disease progression. Therefore, the identification and characterization of the genes involved in their biosynthesis are essential for understanding the molecular mechanism involved in their biosynthetic pathways and further promoting sustainable knowledge-based crop production. Abstract Polyketides are structurally diverse and physiologically active secondary metabolites produced by many organisms, including fungi. The biosynthesis of polyketides from acyl-CoA thioesters is catalyzed by polyketide synthases, PKSs. Polyketides play roles including in cell protection against oxidative stress, non-constitutive (toxic) roles in cell membranes, and promoting the survival of the host organisms. The genus Verticillium comprises many species that affect a wide range of organisms including plants, insects, and other fungi. Many are known as causal agents of Verticillium wilt diseases in plants. In this study, a comparative genomics approach involving several Verticillium species led us to evaluate the potential of Verticillium species for producing polyketides and to identify putative polyketide biosynthesis gene clusters. The next step was to characterize them and predict the types of polyketide compounds they might produce. We used publicly available sequences from ten species of Verticillium including V. dahliae, V. longisporum, V. nonalfalfae, V. alfalfae, V. nubilum, V. zaregamsianum, V. klebahnii, V. tricorpus, V. isaacii, and V. albo-atrum to identify and characterize PKS gene clusters by utilizing a range of bioinformatic and phylogenetic approaches. We found 32 putative PKS genes and possible clusters in the genomes of Verticillium species. All the clusters appear to be complete and functional. In addition, at least five clusters including putative DHN-melanin-, cytochalasin-, fusarielien-, fujikurin-, and lijiquinone-like compounds may belong to the active PKS repertoire of Verticillium. These results will pave the way for further functional studies to understand the role of these clusters.
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Affiliation(s)
- Mohammad Sayari
- Department of Plant Science, Faculty of Agricultural and Food Sciences, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada
| | - Aria Dolatabadian
- Department of Plant Science, Faculty of Agricultural and Food Sciences, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada
| | - Mohamed El-Shetehy
- Department of Plant Science, Faculty of Agricultural and Food Sciences, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada
- Department of Botany, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Pawanpuneet Kaur Rehal
- Department of Plant Science, Faculty of Agricultural and Food Sciences, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada
| | - Fouad Daayf
- Department of Plant Science, Faculty of Agricultural and Food Sciences, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada
- Correspondence:
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17
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Thadem N, Rajesh M, Balaboina H, Das S. Synthesis of bridgehead-azacycles via dual C-N/C-C annulation of α-amino acids, aminals and maleimides. Org Biomol Chem 2022; 20:6368-6383. [PMID: 35861324 DOI: 10.1039/d2ob01117d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of various bridged azacyclic adducts has recently become a reemerging topic due to their bioactive and natural product mimic profiles. Accordingly, herein, we report a method for easy access to succinamide-bridged azacyclic derivatives through the metal-free polarization-controlled dual C-N/C-C annulation of readily available α-amino acids, 2-amino benzaldehydes or pyrrole/indole-2-aldehyde and maleimide substrates. This cascade features a rare dipolarophile-induced diastereo-selective amidative annulation, followed by 3 + 2 cycloaddition as key steps.
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Affiliation(s)
- Nagender Thadem
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manda Rajesh
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.
| | - Harikrishna Balaboina
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.
| | - Saibal Das
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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18
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Zhao DL, Liu J, Han XB, Wang M, Peng YL, Ma SQ, Cao F, Li YQ, Zhang CS. Decalintetracids A and B, two pairs of unusual 3-decalinoyltetramic acid derivatives with phytotoxicity from Fusarium equiseti D39. PHYTOCHEMISTRY 2022; 197:113125. [PMID: 35157922 DOI: 10.1016/j.phytochem.2022.113125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
The filamentous fungi Fusarium sp. are well-known for their ability to produce abundant specialised metabolites with attractive chemical structures and bioactivities. In this study, chemical analyses of the endophyte F. equiseti D39 led to the isolation and identification of two pairs of undescribed 3-decalinoyltetramic acids (3DTAs) E/Z diastereomers, decalintetracids A and B. Their structures were elucidated by comprehensive spectroscopic analysis and quantum-chemical calculations. Although 3DTAs were commonly reported from fungi, decalintetracid A possessed an unprecedented tricyclo [7.2.1.02,7] dodecane skeleton, which added the diversity of these fungal metabolites. In addition, decalintetracid B was featured by a unique 6/6/5 ring system core. A plausible biosynthetic pathway for decalintetracids A and B was proposed. Both compounds exhibited phytotoxicity toward Amaranthus retroflexus L. and Amaranthus hybrid, indicating their potential as natural herbicides.
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Affiliation(s)
- Dong-Lin Zhao
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Jing Liu
- Zunyi Branch, Guizhou Tobacco Company, Zunyi, 563000, People's Republic of China
| | - Xiao-Bin Han
- Zunyi Branch, Guizhou Tobacco Company, Zunyi, 563000, People's Republic of China
| | - Mei Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Yu-Long Peng
- Zunyi Branch, Guizhou Tobacco Company, Zunyi, 563000, People's Republic of China
| | - Si-Qi Ma
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Fei Cao
- College of Pharmaceutical Sciences, Hebei University, Baoding, 071002, People's Republic of China.
| | - Yi-Qiang Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.
| | - Cheng-Sheng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.
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Watanabe K, Sato M, Osada H. Recent advances in the chemo-biological characterization of decalin natural products and unraveling of the workings of Diels-Alderases. Fungal Biol Biotechnol 2022; 9:9. [PMID: 35488322 PMCID: PMC9055775 DOI: 10.1186/s40694-022-00139-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 11/19/2022] Open
Abstract
The Diels–Alder (DA) reaction refers to a [4 + 2] cycloaddition reaction that falls under the category of pericyclic reactions. It is a reaction that allows regio- and stereo-selective construction of two carbon–carbon bonds simultaneously in a concerted manner to generate a six-membered ring structure through a six-electron cyclic transition state. The DA reaction is one of the most widely applied reactions in organic synthesis, yet its role in biological systems has been debated intensely over the last four decades. A survey of secondary metabolites produced by microorganisms suggests strongly that many of the compounds possess features that are likely formed through DA reactions, and most of them are considered to be catalyzed by enzymes that are commonly referred to as Diels–Alderases (DAases). In recent years, especially over the past 10 years or so, we have seen an accumulation of a substantial body of work that substantiates the argument that DAases indeed exist and play a critical role in the biosynthesis of complex metabolites. This review will cover the DAases involved in the biosynthesis of decalin moieties, which are found in many of the medicinally important natural products, especially those produced by fungi. In particular, we will focus on a subset of secondary metabolites referred to as pyrrolidine-2-one-bearing decalin compounds and discuss the decalin ring stereochemistry and the biological activities of those compounds. We will also look into the genes and enzymes that drive the biosynthetic construction of those complex natural products, and highlight the recent progress made on the structural and mechanistic understanding of DAases, especially regarding how those enzymes exert stereochemical control over the [4 + 2] cycloaddition reactions they catalyze.
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Affiliation(s)
- Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan.
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Hiroyuki Osada
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan. .,Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako-shi, 351-0198, Japan.
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20
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Skellam E. Biosynthesis of fungal polyketides by collaborating and trans-acting enzymes. Nat Prod Rep 2022; 39:754-783. [PMID: 34842268 DOI: 10.1039/d1np00056j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Covering: 1999 up to 2021Fungal polyketides encompass a range of structurally diverse molecules with a wide variety of biological activities. The giant multifunctional enzymes that synthesize polyketide backbones remain enigmatic, as do many of the tailoring enzymes involved in functional modifications. Recent advances in elucidating biosynthetic gene clusters (BGCs) have revealed numerous examples of fungal polyketide synthases that require the action of collaborating enzymes to synthesize the carbon backbone. This review will discuss collaborating and trans-acting enzymes involved in loading, extending, and releasing polyketide intermediates from fungal polyketide synthases, and additional modifications introduced by trans-acting enzymes demonstrating the complexity encountered when investigating natural product biosynthesis in fungi.
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Affiliation(s)
- Elizabeth Skellam
- Department of Chemistry, BioDiscovery Institute, University of North Texas, 1155 Union Circle, Denton, TX 76203, USA.
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21
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Wei X, Wang WG, Matsuda Y. Branching and converging pathways in fungal natural product biosynthesis. Fungal Biol Biotechnol 2022; 9:6. [PMID: 35255990 PMCID: PMC8902786 DOI: 10.1186/s40694-022-00135-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/19/2022] [Indexed: 12/15/2022] Open
Abstract
AbstractIn nature, organic molecules with great structural diversity and complexity are synthesized by utilizing a relatively small number of starting materials. A synthetic strategy adopted by nature is pathway branching, in which a common biosynthetic intermediate is transformed into different end products. A natural product can also be synthesized by the fusion of two or more precursors generated from separate metabolic pathways. This review article summarizes several representative branching and converging pathways in fungal natural product biosynthesis to illuminate how fungi are capable of synthesizing a diverse array of natural products.
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22
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Juszczak M, Kluska M, Kosińska A, Palusiak M, Rybarczyk‐Pirek AJ, Wzgarda‐Raj K, Rudolf B, Woźniak K. Cytotoxicity of piano‐stool ruthenium cyclopentadienyl complexes bearing different imidato ligands. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Michał Juszczak
- Faculty of Biology and Environmental Protection, Department of Molecular Genetics University of Lodz Lodz Poland
| | - Magdalena Kluska
- Faculty of Biology and Environmental Protection, Department of Molecular Genetics University of Lodz Lodz Poland
| | - Aneta Kosińska
- Faculty of Chemistry, Department of Organic Chemistry University of Lodz Lodz Poland
| | - Marcin Palusiak
- Faculty of Chemistry, Department of Physical Chemistry University of Lodz Lodz Poland
| | | | - Kinga Wzgarda‐Raj
- Faculty of Chemistry, Department of Physical Chemistry University of Lodz Lodz Poland
| | - Bogna Rudolf
- Faculty of Chemistry, Department of Organic Chemistry University of Lodz Lodz Poland
| | - Katarzyna Woźniak
- Faculty of Biology and Environmental Protection, Department of Molecular Genetics University of Lodz Lodz Poland
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23
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Lim HJ, An JS, Bae ES, Cho E, Hwang S, Nam SJ, Oh KB, Lee SK, Oh DC. Ligiamycins A and B, Decalin-Amino-Maleimides from the Co-Culture of Streptomyces sp. and Achromobacter sp. Isolated from the Marine Wharf Roach, Ligia exotica. Mar Drugs 2022; 20:83. [PMID: 35200613 PMCID: PMC8878407 DOI: 10.3390/md20020083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/08/2022] [Accepted: 01/11/2022] [Indexed: 02/04/2023] Open
Abstract
Streptomyces sp. GET02.ST and Achromobacter sp. GET02.AC were isolated together from the gut of the wharf roach, Ligia exotica, inhabiting the intertidal zone of the west coast of Korea. The co-cultivation of these two strains significantly induced the production of two new metabolites, ligiamycins A (1) and B (2), which were barely detected in the single culture of Streptomyces sp. GET02.ST. The planar structures of ligiamycins A (1) and B (2) were elucidated as new decalins coupled with amino-maleimides by the analysis of various spectroscopic data, including nuclear magnetic resonance (NMR), ultraviolet (UV), and mass (MS) data. The assignment of two nitrogen atoms in amino-maleimide in 1 was accomplished based on 1H-15N heteroatom single quantum coherence spectroscopy (HSQC) NMR experiments. The relative configurations of the ligiamycins were determined using rotating frame Overhauser effect spectroscopy (ROESY) NMR data, and their absolute configurations were deduced by comparing their experimental and calculated optical rotations. Ligiamycin A (1) displayed antibacterial effects against Staphylococcus aureus and Salmonella enterica, while ligiamycin B (2) exhibited mild cell cytotoxicity against human colorectal cancer cells.
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Affiliation(s)
- Hyung-Ju Lim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
| | - Joon Soo An
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
| | - Eun Seo Bae
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
| | - Eunji Cho
- Department of Agriculture Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (E.C.); (K.-B.O.)
| | - Sunghoon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea;
| | - Ki-Bong Oh
- Department of Agriculture Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (E.C.); (K.-B.O.)
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.-J.L.); (J.S.A.); (E.S.B.); (S.H.); (S.K.L.)
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24
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Ma C, Wang Y, Chen G, Li J, Jiang Y, Zhang X, Fan X. Divergent construction of 3-(indol-2-yl)succinimide/maleimide and fused benzodiazepine skeletons from 2-(1 H-indol-1-yl)anilines and maleimides. Org Chem Front 2022. [DOI: 10.1039/d2qo00779g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Divergent construction of 3-(indol-2-yl)succinimide/maleimide and indoyl/pyrrolyl fused benzodiazepine skeletons from 2-(1H-indol-1-yl)anilines and maleimides is presented.
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Affiliation(s)
- Chunhua Ma
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yue Wang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guang Chen
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jingyi Li
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuqin Jiang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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25
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Gao L, Li G, Li X, Zhang G, Zhang M, Li Q, Ban S. Cascade Michael/aldol/rearrangement between phenacylmalononitriles and maleimides: highly diastereoselective access to functionalized bicyclic cyclopentenes containing a CN-substituted all-carbon quaternary center. Org Chem Front 2022. [DOI: 10.1039/d1qo01762d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A highly diastereoselective approach towards the synthesis of quaternary center-containing cyclopentenes was developed. The tandem Michael/aldol/rearrangement processes occurred under mild reaction conditions.
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Affiliation(s)
- Li Gao
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Gaihui Li
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Xiaokang Li
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Guoshun Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Min Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Qingshan Li
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
- Shanxi Key laboratory of Chronic Inflammatory Targeted Drugs, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi, 030619, China
| | - Shurong Ban
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
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26
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Kumar R, Chandra D, Sharma U. Pd‐Catalyzed Atropselective C−H Olefination Promoted by a Transient Directing Group. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Rohit Kumar
- Chemical Technology Division CSIR-Institute of Himalayan Bioresource Technology Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Devesh Chandra
- Chemical Technology Division CSIR-Institute of Himalayan Bioresource Technology Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Upendra Sharma
- Chemical Technology Division CSIR-Institute of Himalayan Bioresource Technology Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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27
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Bauman KD, Butler KS, Moore BS, Chekan JR. Genome mining methods to discover bioactive natural products. Nat Prod Rep 2021; 38:2100-2129. [PMID: 34734626 PMCID: PMC8597713 DOI: 10.1039/d1np00032b] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Indexed: 12/22/2022]
Abstract
Covering: 2016 to 2021With genetic information available for hundreds of thousands of organisms in publicly accessible databases, scientists have an unprecedented opportunity to meticulously survey the diversity and inner workings of life. The natural product research community has harnessed this breadth of sequence information to mine microbes, plants, and animals for biosynthetic enzymes capable of producing bioactive compounds. Several orthogonal genome mining strategies have been developed in recent years to target specific chemical features or biological properties of bioactive molecules using biosynthetic, resistance, or transporter proteins. These "biosynthetic hooks" allow researchers to query for biosynthetic gene clusters with a high probability of encoding previously undiscovered, bioactive compounds. This review highlights recent case studies that feature orthogonal approaches that exploit genomic information to specifically discover bioactive natural products and their gene clusters.
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Affiliation(s)
- Katherine D Bauman
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093, USA.
| | - Keelie S Butler
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, NC, 27402, USA.
| | - Bradley S Moore
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093, USA.
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jonathan R Chekan
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, NC, 27402, USA.
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28
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Meng X, Fang Y, Ding M, Zhang Y, Jia K, Li Z, Collemare J, Liu W. Developing fungal heterologous expression platforms to explore and improve the production of natural products from fungal biodiversity. Biotechnol Adv 2021; 54:107866. [PMID: 34780934 DOI: 10.1016/j.biotechadv.2021.107866] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/04/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022]
Abstract
Natural products from fungi represent an important source of biologically active metabolites notably for therapeutic agent development. Genome sequencing revealed that the number of biosynthetic gene clusters (BGCs) in fungi is much larger than expected. Unfortunately, most of them are silent or barely expressed under laboratory culture conditions. Moreover, many fungi in nature are uncultivable or cannot be genetically manipulated, restricting the extraction and identification of bioactive metabolites from these species. Rapid exploration of the tremendous number of cryptic fungal BGCs necessitates the development of heterologous expression platforms, which will facilitate the efficient production of natural products in fungal cell factories. Host selection, BGC assembly methods, promoters used for heterologous gene expression, metabolic engineering strategies and compartmentalization of biosynthetic pathways are key aspects for consideration to develop such a microbial platform. In the present review, we summarize current progress on the above challenges to promote research effort in the relevant fields.
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Affiliation(s)
- Xiangfeng Meng
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Yu Fang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Mingyang Ding
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Yanyu Zhang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Kaili Jia
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Zhongye Li
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China
| | - Jérôme Collemare
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands.
| | - Weifeng Liu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No. 72 Binhai Road, Qingdao 266237, PR China.
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29
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Wei G, Shu X, Yao Y, Zhang K, Zhang J, Gao SS. Heterologous Production of Unnatural Flavipucine Family Products Provides Insights into Flavipucines Biosynthesis. Org Lett 2021; 23:7708-7712. [PMID: 34554766 DOI: 10.1021/acs.orglett.1c02566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heterologous expression of the flavipucine biosynthetic gene cluster in Aspergillus nidulans led to the production of flavipucine (1) and dihydroisoflavipucine (3), as well as six unusual flavipucine related products containing three classes of heterocycles. This combined with gene inactivation, chemical complementation, and transcriptome analysis demonstrated unprecedented ways to form 2-pyridone and 2-pyrone structures by the oxidative rearrangements of pyrrolinone precursors as well as provided insights into the biosynthesis of this important class of natural products.
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Affiliation(s)
- Guangzheng Wei
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xian Shu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yongpeng Yao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Kexin Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jun Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Shu-Shan Gao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
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30
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Han W, Liu F, Fujisawa K, Oriyama T. Mannich Reaction of α-Aminomaleimides with Imines. CHEM LETT 2021. [DOI: 10.1246/cl.210345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wei Han
- Department of Chemistry, Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Fan Liu
- Department of Chemistry, Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Kiyoshi Fujisawa
- Department of Chemistry, Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Takeshi Oriyama
- Department of Chemistry, Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
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31
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Aslam M, Mohandoss S, Lee YR. Chemoselective Installation of Diverse Succinimides on Fused Benzimidazoles via Rhodium-Catalyzed C-H Activation/Annulation: Chemosensor for Heavy Metals. Org Lett 2021; 23:6206-6211. [PMID: 34342469 DOI: 10.1021/acs.orglett.1c01793] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel Rh-catalyzed cascade C-H activation/annulation of 2-arylbenzimidazoles with maleimides is reported. Rapid chemoselective access to two structurally distinct succinimide-bearing benzoimidazoisoquinolinones is achieved, depending on the acidic and basic conditions. This atom- and step-economic strategy features a wide substrate scope, excellent functional group tolerance, and site-specific functionalization. Application of the methodology yields a novel benzimidazole-based probe as a fluorescent chemosensor for the nanomolar detection of Hg2+, Cu2+, and Fe3+ ions.
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Affiliation(s)
- Mohammad Aslam
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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32
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Viveki AB, Pol MD, Halder P, Sonavane SR, Mhaske SB. Annulation of Enals with Carbamoylpropiolates via NHC-Catalyzed Enolate Pathway: Access to Functionalized Maleimides/Iso-maleimides and Synthesis of Aspergillus FH-X-213. J Org Chem 2021; 86:9466-9477. [PMID: 34213335 DOI: 10.1021/acs.joc.1c00782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Herein we report the N-heterocyclic carbene (NHC)-catalyzed [3 + 2] annulation of α,β-unsaturated aldehydes with carbamoylpropiolates via an unusual enolate pathway leading to the construction of highly functionalized maleimides or isomaleimides. The electronic effect imposed by the alkyl/aryl group present on the amide nitrogen of carbamoylpropiolates plays a crucial role in the selective formation of these important five-membered heterocyclic building blocks. The developed protocol is mild and tolerates a wide range of substituents on both substrates. The application of this protocol in the synthesis of the antibacterial natural product Aspergillus FH-X-213 has also been demonstrated.
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Affiliation(s)
- Amol B Viveki
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mahesh D Pol
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Priyanka Halder
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sameer R Sonavane
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Santosh B Mhaske
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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33
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Primahana G, Narmani A, Surup F, Teponno RB, Arzanlou M, Stadler M. Five Tetramic Acid Derivatives Isolated from the Iranian Fungus Colpoma quercinum CCTU A372. Biomolecules 2021; 11:biom11060783. [PMID: 34067463 PMCID: PMC8224775 DOI: 10.3390/biom11060783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 01/31/2023] Open
Abstract
Submerged mycelial cultures of the ascomycete Colpoma quercinum CCTU A372 were found to produce five previously undescribed tetramic acids, for which we propose the trivial names colposetins A-C (1-3) and colpomenoic acids A and B (4 and 5), along with the known compounds penicillide (6) and monodictyphenone (7). The planar structures of 1-5 were determined by high-resolution electrospray ionization mass spectrometry (HR-ESIMS) and extensive 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. Their absolute configurations were determined by the combination of electronic circular dischroism (ECD) analysis, J-based configurational analysis, and a rotating-frame Overhauser effect spectroscopy (ROESY) experiment. Colposetin B displayed weak antimicrobial activity against Bacillus subtilis and Mucor hiemalis (MIC 67 µg/mL).
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Affiliation(s)
- Gian Primahana
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany; (G.P.); (A.N.); (F.S.); (R.B.T.)
- Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan Puspiptek, Serpong, 15314 Tangerang Selatan, Indonesia
| | - Abolfazl Narmani
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany; (G.P.); (A.N.); (F.S.); (R.B.T.)
- Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz 51666, Iran;
| | - Frank Surup
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany; (G.P.); (A.N.); (F.S.); (R.B.T.)
| | - Rémy Bertrand Teponno
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany; (G.P.); (A.N.); (F.S.); (R.B.T.)
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Mahdi Arzanlou
- Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz 51666, Iran;
| | - Marc Stadler
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany; (G.P.); (A.N.); (F.S.); (R.B.T.)
- Correspondence:
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34
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Ohashi M, Kakule TB, Tang MC, Jamieson CS, Liu M, Zhao YL, Houk KN, Tang Y. Biosynthesis of para-Cyclophane-Containing Hirsutellone Family of Fungal Natural Products. J Am Chem Soc 2021; 143:5605-5609. [PMID: 33834778 DOI: 10.1021/jacs.1c00098] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hirsutellones are fungal natural products containing a macrocyclic para-cyclophane connected to a decahydrofluorene ring system. We have elucidated the biosynthetic pathway for pyrrocidine B (3) and GKK1032 A2 (4). Two small hypothetical proteins, an oxidoreductase and a lipocalin-like protein, function cooperatively in the oxidative cyclization of the cyclophane, while an additional hypothetical protein in the pyrrocidine pathway catalyzes the exo-specific cycloaddition to form the cis-fused decahydrofluorene.
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Affiliation(s)
| | | | | | | | | | - Yi-Lei Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, MOE-LSB and MOE-LSC, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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35
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Inose K, Tanaka S, Tanaka K, Hashimoto M. Cyclohelminthol CPs: Scope and Limitations of Density Functional Theory-Based Structural Elucidation of Natural Products. J Org Chem 2021; 86:1505-1515. [DOI: 10.1021/acs.joc.0c02378] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kota Inose
- Faculty of Agriculture and Bioscience, Hirosaki University, 3-Bunkyo-cho, Hirosaki 036-8561, Japan
| | - Shizuya Tanaka
- Faculty of Agriculture and Bioscience, Hirosaki University, 3-Bunkyo-cho, Hirosaki 036-8561, Japan
| | - Kazuaki Tanaka
- Faculty of Agriculture and Bioscience, Hirosaki University, 3-Bunkyo-cho, Hirosaki 036-8561, Japan
| | - Masaru Hashimoto
- Faculty of Agriculture and Bioscience, Hirosaki University, 3-Bunkyo-cho, Hirosaki 036-8561, Japan
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36
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Minami A, Ugai T, Ozaki T, Oikawa H. Predicting the chemical space of fungal polyketides by phylogeny-based bioinformatics analysis of polyketide synthase-nonribosomal peptide synthetase and its modification enzymes. Sci Rep 2020; 10:13556. [PMID: 32782278 PMCID: PMC7421883 DOI: 10.1038/s41598-020-70177-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 07/24/2020] [Indexed: 11/10/2022] Open
Abstract
Fungal polyketide synthase (PKS)–nonribosomal peptide synthetase (NRPS) hybrids are key enzymes for synthesizing structurally diverse hybrid natural products (NPs) with characteristic biological activities. Predicting their chemical space is of particular importance in the field of natural product chemistry. However, the unexplored programming rule of the PKS module has prevented prediction of its chemical structure based on amino acid sequences. Here, we conducted a phylogenetic analysis of 884 PKS–NRPS hybrids and a modification enzyme analysis of the corresponding biosynthetic gene cluster, revealing a hidden relationship between its genealogy and core structures. This unexpected result allowed us to predict 18 biosynthetic gene cluster (BGC) groups producing known carbon skeletons (number of BGCs; 489) and 11 uncharacterized BGC groups (171). The limited number of carbon skeletons suggests that fungi tend to select PK skeletons for survival during their evolution. The possible involvement of a horizontal gene transfer event leading to the diverse distribution of PKS–NRPS genes among fungal species is also proposed. This study provides insight into the chemical space of fungal PKs and the distribution of their biosynthetic gene clusters.
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Affiliation(s)
- Atsushi Minami
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
| | - Takahiro Ugai
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Taro Ozaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hideaki Oikawa
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
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37
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Hu PF, Huang J, Chen L, Ding Z, Liu L, Molnár I, Zhang BB. Oxidative Stress Induction Is a Rational Strategy to Enhance the Productivity of Antrodia cinnamomea Fermentations for the Antioxidant Secondary Metabolite Antrodin C. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3995-4004. [PMID: 32133853 PMCID: PMC7351023 DOI: 10.1021/acs.jafc.9b07965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Antioxidant metabolites contribute to alleviating oxidative stress caused by reactive oxygen species (ROS) in microorganisms. We utilized oxidative stressors such as hydrogen peroxide supplementation to increase the yield of the bioactive secondary metabolite antioxidant antrodin C in submerged fermentations of the medicinal mushroom Antrodia cinnamomea. Changes in the superoxide dismutase and catalase activities of the cells indicate that ROS are critical to promote antrodin C biosynthesis, while the ROS production inhibitor diphenyleneiodonium cancels the productivity-enhancing effects of H2O2. Transcriptomic analysis suggests that key enzymes in the mitochondrial electron transport chain are repressed during oxidative stress, leading to ROS accumulation and triggering the biosynthesis of antioxidants such as antrodin C. Accordingly, rotenone, an inhibitor of the electron transport chain complex I, mimics the antrodin C productivity-enhancing effects of H2O2. Delineating the steps connecting oxidative stress with increased antrodin C biosynthesis will facilitate the fine-tuning of strategies for rational fermentation process improvement.
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Affiliation(s)
- Peng-Fei Hu
- Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, P.R. China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
| | - Jing Huang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
| | - Lei Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
| | - Zhongyang Ding
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
| | - Liming Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
| | - István Molnár
- Southwest Center for Natural Products Research, The University of Arizona, 250 E. Valencia Rd., Tucson, AZ 85706, USA
| | - Bo-Bo Zhang
- Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, P.R. China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
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Huang X, Zhang W, Tang S, Wei S, Lu X. Collaborative Biosynthesis of a Class of Bioactive Azaphilones by Two Separate Gene Clusters Containing Four PKS/NRPSs with Transcriptional Crosstalk in Fungi. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xuenian Huang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Wei Zhang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Shen Tang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
- College of Bioscience and BioengineeringJiangxi Agricultural University No. 1101 Zhimin Road Nanchang 330045 China
| | - Suhui Wei
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Xuefeng Lu
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
- Marine Biology and Biotechnology LaboratoryQingdao National Laboratory for Marine Science and Technology No. 1 Wenhai Road, Aoshanwei Qingdao 266101 China
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Huang X, Zhang W, Tang S, Wei S, Lu X. Collaborative Biosynthesis of a Class of Bioactive Azaphilones by Two Separate Gene Clusters Containing Four PKS/NRPSs with Transcriptional Crosstalk in Fungi. Angew Chem Int Ed Engl 2020; 59:4349-4353. [DOI: 10.1002/anie.201915514] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Xuenian Huang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Wei Zhang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Shen Tang
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
- College of Bioscience and BioengineeringJiangxi Agricultural University No. 1101 Zhimin Road Nanchang 330045 China
| | - Suhui Wei
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
| | - Xuefeng Lu
- Shandong Provincial Key Laboratory of Synthetic BiologyKey Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences No. 189 Songling Road Qingdao 266101 China
- Marine Biology and Biotechnology LaboratoryQingdao National Laboratory for Marine Science and Technology No. 1 Wenhai Road, Aoshanwei Qingdao 266101 China
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40
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Yee DA, Kakule TB, Cheng W, Chen M, Chong CTY, Hai Y, Hang LF, Hung YS, Liu N, Ohashi M, Okorafor IC, Song Y, Tang M, Zhang Z, Tang Y. Genome Mining of Alkaloidal Terpenoids from a Hybrid Terpene and Nonribosomal Peptide Biosynthetic Pathway. J Am Chem Soc 2020; 142:710-714. [PMID: 31885262 DOI: 10.1021/jacs.9b13046] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Biosynthetic pathways containing multiple core enzymes have potential to produce structurally complex natural products. Here we mined a fungal gene cluster that contains two predicted terpene cyclases (TCs) and a nonribosomal peptide synthetase (NRPS). We showed the flv pathway produces flavunoidine 1, an alkaloidal terpenoid. The core of 1 is a tetracyclic, cage-like, and oxygenated sesquiterpene that is connected to dimethylcadaverine via a C-N bond and is acylated with 5,5-dimethyl-l-pipecolate. The roles of all flv enzymes are established on the basis of metabolite analysis from heterologous expression.
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Affiliation(s)
| | | | - Wei Cheng
- State Key Laboratory of Natural and Biomimetic Drugs , Peking University , Beijing 100191 , China
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41
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Hantke V, Skellam EJ, Cox RJ. Evidence for enzyme catalysed intramolecular [4+2] Diels–Alder cyclization during the biosynthesis of pyrichalasin H. Chem Commun (Camb) 2020; 56:2925-2928. [DOI: 10.1039/c9cc09590j] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In vivo evidence is presented for the activity of PyiF as the required intramolecular Diels Alderase during the biosynthesis of the cytochalasan pyrichalasin H in the fungus Magnaporthe grisea NI980.
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Affiliation(s)
- Verena Hantke
- Institute for Organic Chemistry and BMWZ
- Leibniz University Hannover
- Hannover 30167
- Germany
| | - Elizabeth J. Skellam
- Institute for Organic Chemistry and BMWZ
- Leibniz University Hannover
- Hannover 30167
- Germany
| | - Russell J. Cox
- Institute for Organic Chemistry and BMWZ
- Leibniz University Hannover
- Hannover 30167
- Germany
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42
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Genome mining and biosynthesis of a polyketide from a biofertilizer fungus that can facilitate reductive iron assimilation in plant. Proc Natl Acad Sci U S A 2019; 116:5499-5504. [PMID: 30842286 DOI: 10.1073/pnas.1819998116] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fungi have the potential to produce a large repertoire of bioactive molecules, many of which can affect the growth and development of plants. Genomic survey of sequenced biofertilizer fungi showed many secondary metabolite gene clusters are anchored by iterative polyketide synthases (IPKSs), which are multidomain enzymes noted for generating diverse small molecules. Focusing on the biofertilizer Trichoderma harzianum t-22, we identified and characterized a cryptic IPKS-containing cluster that synthesizes tricholignan A, a redox-active ortho-hydroquinone. Tricholignan A is shown to reduce Fe(III) and may play a role in promoting plant growth under iron-deficient conditions. The construction of tricholignan by a pair of collaborating IPKSs was investigated using heterologous reconstitution and biochemical studies. A regioselective methylation step is shown to be a key step in formation of the ortho-hydroquinone. The responsible methyltransferase (MT) is fused with an N-terminal pseudo-acyl carrier protein (ψACP), in which the apo state of the ACP is essential for methylation of the growing polyketide chain. The ψACP is proposed to bind to the IPKS and enable the trans MT to access the growing polyketide. Our studies show that a genome-driven approach to discovering bioactive natural products from biofertilizer fungi can lead to unique compounds and biosynthetic knowledge.
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43
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Zang Y, Gong YH, Li XW, Li XN, Liu JJ, Chen CM, Zhou Y, Gu LH, Luo ZW, Wang JP, Sun WG, Zhu HC, Zhang YH. Canescones A–E: aromatic polyketide dimers with PTP1B inhibitory activity from Penicillium canescens. Org Chem Front 2019. [DOI: 10.1039/c9qo00820a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Canescones A–E (1–5), aromatic polyketide dimers bearing unprecedented 5/6/6/6/5 heteropentacyclic ring skeletons with novel scaffolds, were isolated from Penicillium canescens.
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Zhou ZZ, Zhu HJ, Lin LP, Zhang X, Ge HM, Jiao RH, Tan RX. Dalmanol biosyntheses require coupling of two separate polyketide gene clusters. Chem Sci 2018; 10:73-82. [PMID: 30746075 PMCID: PMC6335865 DOI: 10.1039/c8sc03697g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 11/21/2018] [Indexed: 11/29/2022] Open
Abstract
Polyketide–polyketide hybrids are unique natural products with promising bioactivity, but the hybridization processes remain poorly understood.
Polyketide–polyketide hybrids are unique natural products with promising bioactivity, but the hybridization processes remain poorly understood. Herein, we present that the biosynthetic pathways of two immunosuppressants, dalmanol A and acetodalmanol A, result from an unspecific monooxygenase triggered hybridization of two distinct polyketide (naphthalene and chromane) biosynthetic gene clusters. The orchestration of the functional dimorphism of the polyketide synthase (ChrA) ketoreductase (KR) domain (shortened as ChrA KR) with that of the KR partner (ChrB) in the bioassembly line increases the polyketide diversity and allows the fungal generation of plant chromanes (e.g., noreugenin) and phloroglucinols (e.g., 2,4,6-trihydroxyacetophenone). The simultaneous fungal biosynthesis of 1,3,6,8- and 2-acetyl-1,3,6,8-tetrahydroxynaphthalenes was addressed as well. Collectively, the work may symbolize a movement in understanding the multiple-gene-cluster involved natural product biosynthesis, and highlights the possible fungal generations of some chromane- and phloroglucinol-based phytochemicals.
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Affiliation(s)
- Zhen Zhen Zhou
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China .
| | - Hong Jie Zhu
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China .
| | - Li Ping Lin
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing 210023 , China.,State Key Laboratory Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China
| | - Xuan Zhang
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China .
| | - Hui Ming Ge
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China .
| | - Rui Hua Jiao
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China .
| | - Ren Xiang Tan
- State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules , Nanjing University , Nanjing 210023 , China . .,State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing 210023 , China
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45
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Strategies for Engineering Natural Product Biosynthesis in Fungi. Trends Biotechnol 2018; 37:416-427. [PMID: 30316556 DOI: 10.1016/j.tibtech.2018.09.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/02/2018] [Accepted: 09/12/2018] [Indexed: 01/22/2023]
Abstract
Fungi are a prolific source of bioactive compounds, some of which have been developed as essential medicines and life-enhancing drugs. Genome sequencing has revealed that fungi have the potential to produce considerably more natural products (NPs) than are typically observed in the laboratory. Recently, there have been significant advances in the identification, understanding, and engineering of fungal biosynthetic gene clusters (BGCs). This review briefly describes examples of the engineering of fungal NP biosynthesis at the global, pathway, and enzyme level using in vivo and in vitro approaches and refers to the range and scale of heterologous expression systems available, developments in combinatorial biosynthesis, progress in understanding how fungal BGCs are regulated, and the applications of these novel biosynthetic enzymes as biocatalysts.
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46
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Song T, Arseniyadis S, Cossy J. Highly Enantioselective, Base-Free Synthesis of α-Quaternary Succinimides through Catalytic Asymmetric Allylic Alkylation. Chemistry 2018; 24:8076-8080. [DOI: 10.1002/chem.201800920] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/27/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Tao Song
- Laboratoire de Chimie Organique, Institute of Chemistry; Biology and Innovation (CBI)-ESPCI Paris/CNRS, (UMR8231)/PSL* Research University; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Stellios Arseniyadis
- Laboratoire de Chimie Organique, Institute of Chemistry; Biology and Innovation (CBI)-ESPCI Paris/CNRS, (UMR8231)/PSL* Research University; 10 rue Vauquelin 75231 Paris Cedex 05 France
- Queen Mary University of London; School of Biological and Chemical Sciences; Mile End Road London E1 4NS UK
| | - Janine Cossy
- Laboratoire de Chimie Organique, Institute of Chemistry; Biology and Innovation (CBI)-ESPCI Paris/CNRS, (UMR8231)/PSL* Research University; 10 rue Vauquelin 75231 Paris Cedex 05 France
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47
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Nakashima KI, Tomida J, Kamiya T, Hirai T, Morita Y, Hara H, Kawamura Y, Adachi T, Inoue M. Diaporthols A and B: Bioactive diphenyl ether derivatives from an endophytic fungus Diaporthe sp. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Li L, Tang MC, Tang S, Gao S, Soliman S, Hang L, Xu W, Ye T, Watanabe K, Tang Y. Genome Mining and Assembly-Line Biosynthesis of the UCS1025A Pyrrolizidinone Family of Fungal Alkaloids. J Am Chem Soc 2018; 140:2067-2071. [PMID: 29373009 DOI: 10.1021/jacs.8b00056] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
UCS1025A is a fungal polyketide/alkaloid that displays strong inhibition of telomerase. The structures of UCS1025A and related natural products are featured by a tricyclic furopyrrolizidine connected to a trans-decalin fragment. We mined the genome of a thermophilic fungus and activated the ucs gene cluster to produce UCS1025A at a high titer. Genetic and biochemical analysis revealed a PKS-NRPS assembly line that activates 2S,3S-methylproline derived from l-isoleucine, followed by Knoevenagel condensation to construct the pyrrolizidine moiety. Oxidation of the 3S-methyl group to a carboxylate leads to an oxa-Michael cyclization and furnishes the furopyrrolizidine. Our work reveals a new strategy used by nature to construct heterocyclic alkaloid-like ring systems using assembly line logic.
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Affiliation(s)
- Li Li
- Engineering Research Center of Industrial Microbiology (Ministry of Education) and College of Life Sciences, Fujian Normal University , Fuzhou 350117, China
| | | | - Shoubin Tang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Xili, Nanshan District, Shenzhen 518055, China
| | | | | | | | | | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Xili, Nanshan District, Shenzhen 518055, China
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka , Shizuoka 422-8526, Japan
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49
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Tang MC, Cui X, He X, Ding Z, Zhu T, Tang Y, Li D. Late-Stage Terpene Cyclization by an Integral Membrane Cyclase in the Biosynthesis of Isoprenoid Epoxycyclohexenone Natural Products. Org Lett 2017; 19:5376-5379. [PMID: 28926261 DOI: 10.1021/acs.orglett.7b02653] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Macrophorins are representative examples of isoprenoid epoxycyclohexenones containing cyclized drimane moieties. We located and characterized the biosynthetic gene cluster of macrophorin from Penicillium terrestris. MacJ encoded by this cluster was characterized to be the first example of a membrane-bound type-II terpene cyclase catalyzing the cyclization of meroterpenoids via direct protonation of the terminal olefinic bond in acyclic yanuthones. The late-stage functionalization and substrate promiscuity of MacJ make it a potential biocatalyst for the synthesis of macrophorin analogues.
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Affiliation(s)
| | - Xiaoqing Cui
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Xueqian He
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Zhuang Ding
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | | | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, People's Republic of China
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50
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2017; 34:940-944. [PMID: 28717803 DOI: 10.1039/c7np90028g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as svetamycin B from a Streptomyces species.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, G12 8QQ, UK.
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