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He Q, Zhang HR, Zou Y. A Cytochrome P450 Catalyzes Oxidative Coupling Formation of Insecticidal Dimeric Indole Piperazine Alkaloids. Angew Chem Int Ed Engl 2024:e202404000. [PMID: 38527935 DOI: 10.1002/anie.202404000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
Cytochrome P450 (CYP450)-catalyzed oxidative coupling is an efficient strategy for using simple building blocks to construct complex structural scaffolds of natural products. Among them, heterodimeric coupling between two different monomers is relatively scarce, and the corresponding CYP450s are largely undiscovered. In this study, we discovered a fungal CYP450 (CpsD) and its associated cps cluster from 37208 CYP450s of Pfam PF00067 family member database and subsequently identified a group of new skeleton indole piperazine alkaloids (campesines A-G) by combination of genome mining and heterologous synthesis. Importantly, CYP450 CpsD mainly catalyzes intermolecular oxidative heterocoupling of two different indole piperazine monomers to generate an unexpected 6/5/6/6/6/6/5/6 eight-ring scaffold through the formation of one C-C bond and two C-N bonds, illuminating its first dimerase role in this family of natural products. The proposed catalytic mechanism of CpsD was deeply investigated by diversified substrate derivatization. Moreover, dimeric campesine G shows good insecticidal activity against the global honeybee pest Galleria mellonella. Our study shows a representative example of discovering new skeleton monomeric and dimeric indole piperazine alkaloids from microbial resources, expands our knowledge of bond formation by CYP450s and supports further development of the newly discovered and engineered campesine family compounds as potential biopesticides.
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Affiliation(s)
- Qian He
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, P. R. China
| | - Hua-Ran Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, P. R. China
| | - Yi Zou
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, P. R. China
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Zhang F, Ma C, Che Q, Zhu T, Zhang G, Li D. Extending the Structural Diversity of Labdane Diterpenoids from Marine-Derived Fungus Talaromyces sp. HDN151403 Using Heterologous Expression. Mar Drugs 2023; 21:628. [PMID: 38132949 PMCID: PMC10744899 DOI: 10.3390/md21120628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/23/2023] Open
Abstract
Heterologous biosynthesis has become an effective means to activate fungal silent biosynthetic gene clusters (BGCs) and efficiently utilize fungal genetic resources. Herein, thirteen labdane diterpene derivatives, including five undescribed ones named talarobicins A-E (3-7), were discovered via heterologous expression of a silent BGC (labd) in Aspergillus nidulans. Their structures with absolute configurations were elucidated using extensive MS and NMR spectroscopic methods, as well as electronic circular dichroism (ECD) calculations. These labdanes belong to four skeleton types, and talarobicin B (4) is the first 3,18-dinor-2,3:4,18-diseco-labdane diterpene with the cleavage of the C2-C3 bond in ring A and the decarboxylation at C-3 and C-18. Talarobicin B (4) represents the key intermediate in the biosynthesis of penioxalicin and compound 13. The combinatorial heterologous expression and feeding experiments revealed that the cytochrome P450 enzymes LabdC, LabdE, and LabdF were responsible for catalyzing various chemical reactions, such as oxidation, decarboxylation, and methylation. All of the compounds are noncytotoxic, and compounds 2 and 8 displayed inhibitory effects against methicillin-resistant coagulase-negative staphylococci (MRCNS) and Bacillus cereus.
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Affiliation(s)
- Falei Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Chuanteng Ma
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
- Marine Biomedical Research Institute of Qingdao, Qingdao 266101, China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
- Sanya Oceanographic Institute, Ocean University of China, Sanya 572025, China
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Yan C, Han W, Zhou Q, Niwa K, Tang MJ, Burch JE, Zhang Y, Delgadillo DA, Sun Z, Wu Z, Jacobsen SE, Nelson H, Houk KN, Tang Y. Genome Mining from Agriculturally Relevant Fungi Led to a d-Glucose Esterified Polyketide with a Terpene-like Core Structure. J Am Chem Soc 2023; 145:25080-25085. [PMID: 37948671 PMCID: PMC10682982 DOI: 10.1021/jacs.3c10179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
Comparison of biosynthetic gene clusters (BGCs) found in devastating plant pathogens and biocontrol fungi revealed an uncharacterized and conserved polyketide BGC. Genome mining identified the associated metabolite to be treconorin, which has a terpene-like, trans-fused 5,7-bicyclic core that is proposed to derive from a (4 + 3) cycloaddition. The core is esterified with d-glucose, which derives from the glycosidic cleavage of a trehalose ester precursor. This glycomodification strategy is different from the commonly observed glycosylation of natural products.
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Affiliation(s)
- Chunsheng Yan
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Wenyu Han
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Qingyang Zhou
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Kanji Niwa
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Melody J. Tang
- Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Jessica E. Burch
- Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Yalong Zhang
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - David A. Delgadillo
- Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Zuodong Sun
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Zhongshou Wu
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Steven E. Jacobsen
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Hosea Nelson
- Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - K. N. Houk
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
| | - Yi Tang
- Department
of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, Department of Molecular,
Cell, and Developmental Biology, and Howard Hughes Medical Institute, University of California, Los Angeles, California 90095, United States
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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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