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Adhikari A, Shakya S, Shrestha S, Aryal D, Timalsina KP, Dhakal D, Khatri Y, Parajuli N. Biocatalytic role of cytochrome P450s to produce antibiotics: A review. Biotechnol Bioeng 2023; 120:3465-3492. [PMID: 37691185 DOI: 10.1002/bit.28548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 08/15/2023] [Accepted: 08/26/2023] [Indexed: 09/12/2023]
Abstract
Cytochrome P450s belong to a family of heme-binding monooxygenases, which catalyze regio- and stereospecific functionalisation of C-H, C-C, and C-N bonds, including heteroatom oxidation, oxidative C-C bond cleavages, and nitrene transfer. P450s are considered useful biocatalysts for the production of pharmaceutical products, fine chemicals, and bioremediating agents. Despite having tremendous biotechnological potential, being heme-monooxygenases, P450s require either autologous or heterologous redox partner(s) to perform chemical transformations. Randomly distributed P450s throughout a bacterial genome and devoid of particular redox partners in natural products biosynthetic gene clusters (BGCs) showed an extra challenge to reveal their pharmaceutical potential. However, continuous efforts have been made to understand their involvement in antibiotic biosynthesis and their modification, and this review focused on such BGCs. Here, particularly, we have discussed the role of P450s involved in the production of macrolides and aminocoumarin antibiotics, nonribosomal peptide (NRPSs) antibiotics, ribosomally synthesized and post-translationally modified peptide (RiPPs) antibiotics, and others. Several reactions catalyzed by P450s, as well as the role of their redox partners involved in the BGCs of various antibiotics and their derivatives, have been primarily addressed in this review, which would be useful in further exploration of P450s for the biosynthesis of new therapeutics.
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Affiliation(s)
- Anup Adhikari
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Sajan Shakya
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Shreesti Shrestha
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio, USA
| | - Dipa Aryal
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Kavi Prasad Timalsina
- Department of Biotechnology, National College, Tribhuvan University, Kathmandu, Nepal
| | - Dipesh Dhakal
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, Florida, USA
| | | | - Niranjan Parajuli
- Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
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Kokkini M, Oves-Costales D, Sánchez P, Melguizo Á, Mackenzie TA, Pérez-Bonilla M, Martín J, Giusti A, de Witte P, Vicente F, Genilloud O, Reyes F. New Phocoenamicin and Maklamicin Analogues from Cultures of Three Marine-Derived Micromonospora Strains. Mar Drugs 2023; 21:443. [PMID: 37623724 PMCID: PMC10455904 DOI: 10.3390/md21080443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
Antimicrobial resistance can be considered a hidden global pandemic and research must be reinforced for the discovery of new antibiotics. The spirotetronate class of polyketides, with more than 100 bioactive compounds described to date, has recently grown with the discovery of phocoenamicins, compounds displaying different antibiotic activities. Three marine Micromonospora strains (CA-214671, CA-214658 and CA-218877), identified as phocoenamicins producers, were chosen to scale up their production and LC/HRMS analyses proved that EtOAc extracts from their culture broths produce several structurally related compounds not disclosed before. Herein, we report the production, isolation and structural elucidation of two new phocoenamicins, phocoenamicins D and E (1-2), along with the known phocoenamicin, phocoenamicins B and C (3-5), as well as maklamicin (7) and maklamicin B (6), the latter being reported for the first time as a natural product. All the isolated compounds were tested against various human pathogens and revealed diverse strong to negligible activity against methicillin-resistant Staphylococcus aureus, Mycobacterium tuberculosis H37Ra, Enterococcus faecium and Enterococcus faecalis. Their cell viability was also evaluated against the human liver adenocarcinoma cell line (Hep G2), demonstrating weak or no cytotoxicity. Lastly, the safety of the major compounds obtained, phocoenamicin (3), phocoenamicin B (4) and maklamicin (7), was tested against zebrafish eleuthero embryos and all of them displayed no toxicity up to a concentration of 25 μM.
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Affiliation(s)
- Maria Kokkini
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Daniel Oves-Costales
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Pilar Sánchez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Ángeles Melguizo
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Thomas A. Mackenzie
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Mercedes Pérez-Bonilla
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Arianna Giusti
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, O & N II Herestraat 49-box 824, 3000 Leuven, Belgium; (A.G.); (P.d.W.)
| | - Peter de Witte
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, O & N II Herestraat 49-box 824, 3000 Leuven, Belgium; (A.G.); (P.d.W.)
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Olga Genilloud
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, Armilla, 18016 Granada, Spain; (D.O.-C.); (P.S.); (Á.M.); (T.A.M.); (M.P.-B.); (J.M.); (F.V.); (O.G.)
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3
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Exploring Micromonospora as Phocoenamicins Producers. Mar Drugs 2022; 20:md20120769. [PMID: 36547916 PMCID: PMC9782249 DOI: 10.3390/md20120769] [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: 10/21/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Over the past few years, new technological and scientific advances have reinforced the field of natural product discovery. The spirotetronate class of natural products has recently grown with the discovery of phocoenamicins, natural actinomycete derived compounds that possess different antibiotic activities. Exploring the MEDINA's strain collection, 27 actinomycete strains, including three marine-derived and 24 terrestrial strains, were identified as possible phocoenamicins producers and their taxonomic identification by 16S rDNA sequencing showed that they all belong to the Micromonospora genus. Using an OSMAC approach, all the strains were cultivated in 10 different media each, resulting in 270 fermentations, whose extracts were analyzed by LC-HRMS and subjected to High-throughput screening (HTS) against methicillin-resistant Staphylococcus aureus (MRSA), Mycobacterium tuberculosis H37Ra and Mycobacterium bovis. The combination of LC-UV-HRMS analyses, metabolomics analysis and molecular networking (GNPS) revealed that they produce several related spirotetronates not disclosed before. Variations in the culture media were identified as the most determining factor for phocoenamicin production and the best producer strains and media were established. Herein, we reported the chemically diverse production and metabolic profiling of Micromonospora sp. strains, including the known phocoenamicins and maklamicin, reported for the first time as being related to this family of compounds, as well as the bioactivity of their crude extracts. Although our findings do not confirm previous statements about phocoenamicins production only in unique marine environments, they have identified marine-derived Micromonospora species as the best producers of phocoenamicins in terms of both the abundance in their extracts of some major members of the structural class and the variety of molecular structures produced.
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Yan S, Zeng M, Wang H, Zhang H. Micromonospora: A Prolific Source of Bioactive Secondary Metabolites with Therapeutic Potential. J Med Chem 2022; 65:8735-8771. [PMID: 35766919 DOI: 10.1021/acs.jmedchem.2c00626] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Micromonospora, one of the most important actinomycetes genera, is well-known as the treasure trove of bioactive secondary metabolites (SMs). Herein, together with an in-depth genomic analysis of the reported Micromonospora strains, all SMs from this genus are comprehensively summarized, containing structural features, bioactive properties, and mode of actions as well as their biosynthetic and chemical synthesis pathways. The perspective enables a detailed view of Micromonospora-derived SMs, which will enrich the chemical diversity of natural products and inspire new drug discovery in the pharmaceutical industry.
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Affiliation(s)
- Suqi Yan
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Mingyuan Zeng
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hong Wang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
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Matsui N, Kawakami S, Hamamoto D, Nohara S, Sunada R, Panbangred W, Igarashi Y, Nihira T, Kitani S. Activation of cryptic milbemycin A 4 production in Streptomyces sp. BB47 by the introduction of a functional bldA gene. J GEN APPL MICROBIOL 2021; 67:240-247. [PMID: 34511540 DOI: 10.2323/jgam.2021.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Streptomycetes are characterized by their ability to produce structurally diverse compounds as secondary metabolites and by their complex developmental life cycle, which includes aerial mycelium formation and sporulation. The production of secondary metabolites is growth-stage dependent, and generally coincides with morphological development on a solid culture. Streptomyces sp. BB47 produces several types of bioactive compounds and displays a bald phenotype that is devoid of an aerial mycelium and spores. Here, we demonstrated by genome analysis and gene complementation experiments that the bald phenotype arises from the bldA gene, which is predicted to encode the Leu-tRNAUUA molecule. Unlike the wild-type strain producing jomthonic acid A (1) and antarlide A (2), the strain complemented with a functional bldA gene newly produced milbemycin (3). The chemical structure of compound 3 was elucidated on the basis of various spectroscopic analyses, and was identified as milbemycin A4, which is an insecticidal/acaricidal antibiotic. These results indicate that genetic manipulation of genes involved in morphological development in streptomycetes is a valuable way to activate cryptic biosynthetic pathways.
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Affiliation(s)
- Nana Matsui
- International Center for Biotechnology, Osaka University
| | | | - Dai Hamamoto
- International Center for Biotechnology, Osaka University
| | - Sayuri Nohara
- International Center for Biotechnology, Osaka University
| | - Reina Sunada
- International Center for Biotechnology, Osaka University
| | | | | | - Takuya Nihira
- International Center for Biotechnology, Osaka University.,MU-OU Collaborative Research Center for Bioscience and Biotechnology, Faculty of Science, Mahidol University
| | - Shigeru Kitani
- International Center for Biotechnology, Osaka University.,Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University
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Chandra Mohana N, Yashavantha Rao H, Rakshith D, Mithun P, Nuthan B, Satish S. Omics based approach for biodiscovery of microbial natural products in antibiotic resistance era. J Genet Eng Biotechnol 2018; 16:1-8. [PMID: 30647697 PMCID: PMC6296576 DOI: 10.1016/j.jgeb.2018.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/25/2018] [Accepted: 01/30/2018] [Indexed: 01/01/2023]
Abstract
The need for a new antibiotic pipeline to confront threat imposed by resistant pathogens has become a major global concern for human health. To confront the challenge there is a need for discovery and development of new class of antibiotics. Nature which is considered treasure trove, there is re-emerged interest in exploring untapped microbial to yield novel molecules, due to their wide array of negative effects associated with synthetic drugs. Natural product researchers have developed many new techniques over the past few years for developing diverse compounds of biopotential. Taking edge in the advancement of genomics, genetic engineering, in silico drug design, surface modification, scaffolds, pharmacophores and target-based approach is necessary. These techniques have been economically sustainable and also proven efficient in natural product discovery. This review will focus on recent advances in diverse discipline approach from integrated Bioinformatics predictions, genetic engineering and medicinal chemistry for the synthesis of natural products vital for the discovery of novel antibiotics having potential application.
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Affiliation(s)
- N. Chandra Mohana
- Microbial Drugs Laboratory, Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore 570006, Karnataka, India
| | - H.C. Yashavantha Rao
- Microbial Drugs Laboratory, Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore 570006, Karnataka, India
| | - D. Rakshith
- Microbial Drugs Laboratory, Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore 570006, Karnataka, India
| | - P.R. Mithun
- Department of Life Sciences, Christ University, Bengaluru 560029, Karnataka, India
| | - B.R. Nuthan
- Microbial Drugs Laboratory, Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore 570006, Karnataka, India
| | - S. Satish
- Microbial Drugs Laboratory, Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore 570006, Karnataka, India
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7
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Butenolides from Streptomyces albus J1074 Act as External Signals To Stimulate Avermectin Production in Streptomyces avermitilis. Appl Environ Microbiol 2018; 84:AEM.02791-17. [PMID: 29500256 DOI: 10.1128/aem.02791-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/20/2018] [Indexed: 11/20/2022] Open
Abstract
In streptomycetes, autoregulators are important signaling compounds that trigger secondary metabolism, and they are regarded as Streptomyces hormones based on their extremely low effective concentrations (nM) and the involvement of specific receptor proteins. Our previous distribution study revealed that butenolide-type Streptomyces hormones, including avenolide, are a general class of signaling molecules in streptomycetes and that Streptomyces albus strain J1074 may produce butenolide-type Streptomyces hormones. Here, we describe metabolite profiling of a disruptant of the S. albusaco gene, which encodes a key biosynthetic enzyme for butenolide-type Streptomyces hormones, and identify four butenolide compounds from S. albus J1074 that show avenolide activity. The compounds structurally resemble avenolide and show different levels of avenolide activity. A dual-culture assay with imaging mass spectrometry (IMS) analysis for in vivo metabolic profiling demonstrated that the butenolide compounds of S. albus J1074 stimulate avermectin production in another Streptomyces species, Streptomyces avermitilis, illustrating the complex chemical interactions through interspecies signals in streptomycetes.IMPORTANCE Microorganisms produce external and internal signaling molecules to control their complex physiological traits. In actinomycetes, Streptomyces hormones are low-molecular-weight signals that are key to our understanding of the regulatory mechanisms of Streptomyces secondary metabolism. This study reveals that acyl coenzyme A (acyl-CoA) oxidase is a common and essential biosynthetic enzyme for butenolide-type Streptomyces hormones. Moreover, the diffusible butenolide compounds from a donor Streptomyces strain were recognized by the recipient Streptomyces strain of a different species, resulting in the initiation of secondary metabolism in the recipient. This is an interesting report on the chemical interaction between two different streptomycetes via Streptomyces hormones. Information on the metabolite network may provide useful hints not only to clarification of the regulatory mechanism of secondary metabolism, but also to understanding of the chemical communication among streptomycetes to control their physiological traits.
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Gui C, Zhang S, Zhu X, Ding W, Huang H, Gu YC, Duan Y, Ju J. Antimicrobial Spirotetronate Metabolites from Marine-Derived Micromonospora harpali SCSIO GJ089. JOURNAL OF NATURAL PRODUCTS 2017; 80:1594-1603. [PMID: 28489382 DOI: 10.1021/acs.jnatprod.7b00176] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two new spirotetronate aglycones, 22-dehydroxymethyl-kijanolide (1) and 8-hydroxy-22-dehydroxymethyl-kijanolide (2), along with seven new spirotetronate glycosides, microsporanates A-F (3-8) and tetrocarcin P (9), together with three known tetrocarcins [tetrocarcins A (10), B (11), and AC6H (12)], were isolated from fermentation broths of the marine-derived Micromonospora harpali SCSIO GJ089. The structures of 1-9 were elucidated on the basis of 1D and 2D NMR and MS spectroscopic data. Compounds 3-8 feature an α,β-unsaturated carbonyl moiety within their spirotetronate skeletons. Moreover, compounds 3-12 displayed strong to moderate antibacterial activities against Gram positive bacteria Bacillus thuringiensis BT01 and B. subtilis BS01 with MIC values ranging from 0.016 to 8.0 μg/mL.
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Affiliation(s)
- Chun Gui
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road, Beijing 110039, People's Republic of China
| | - Shanwen Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road, Beijing 110039, People's Republic of China
| | - Xiangcheng Zhu
- Xiangya International Academy of Translational Medicine, Central South University, National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery , 172 Tongzipo Road, Changsha 410013, People's Republic of China
| | - Wenjuan Ding
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road, Beijing 110039, People's Republic of China
| | - Hongbo Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre , Bracknell, Berkshire RG42 6EY, U.K
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery , 172 Tongzipo Road, Changsha 410013, People's Republic of China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road, Beijing 110039, People's Republic of China
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9
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Abstract
[4 + 2]-Cycloadditions are increasingly being recognized in the biosynthetic pathways of many structurally complex natural products. A relatively small collection of enzymes from these pathways have been demonstrated to increase rates of cyclization and impose stereochemical constraints on the reactions. While mechanistic investigation of these enzymes is just beginning, recent studies have provided new insights with implications for understanding their biosynthetic roles, mechanisms of catalysis, and evolutionary origin.
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Affiliation(s)
- Byung-Sun Jeon
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Shao-An Wang
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Mark W Ruszczycky
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Hung-Wen Liu
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
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10
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Li JS, Du MN, Zhang H, Zhang J, Zhang SY, Wang HY, Chen AL, Wang JD, Xiang WS. New milbemycin metabolites from the genetically engineered strain Streptomyces bingchenggensis BCJ60. Nat Prod Res 2016; 31:780-784. [DOI: 10.1080/14786419.2016.1244194] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian-Song Li
- Life Science and Biotechnology Research Center, School of Life Science, Northeast Agricultural University, Harbin, China
| | - Min-Na Du
- Department of New Drug Screening, Zhejiang Hisun Pharmaceutical Co., Ltd, Taizhou, China
| | - Hui Zhang
- Department of New Drug Screening, Zhejiang Hisun Pharmaceutical Co., Ltd, Taizhou, China
| | - Ji Zhang
- Life Science and Biotechnology Research Center, School of Life Science, Northeast Agricultural University, Harbin, China
| | - Shao-Yong Zhang
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology, Zhejiang Agricultural and Forestry University, Lin’An, China
| | - Hai-Yan Wang
- Life Science and Biotechnology Research Center, School of Life Science, Northeast Agricultural University, Harbin, China
| | - An-Liang Chen
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology, Zhejiang Agricultural and Forestry University, Lin’An, China
| | - Ji-Dong Wang
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology, Zhejiang Agricultural and Forestry University, Lin’An, China
- Department of New Drug Screening, Zhejiang Hisun Pharmaceutical Co., Ltd, Taizhou, China
| | - Wen-Sheng Xiang
- Life Science and Biotechnology Research Center, School of Life Science, Northeast Agricultural University, Harbin, China
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11
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Daduang R, Kitani S, Hashimoto J, Thamchaipenet A, Igarashi Y, Shin-ya K, Ikeda H, Nihira T. Characterization of the biosynthetic gene cluster for maklamicin, a spirotetronate-class antibiotic of the endophytic Micromonospora sp. NBRC 110955. Microbiol Res 2015; 180:30-9. [DOI: 10.1016/j.micres.2015.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 07/08/2015] [Accepted: 07/11/2015] [Indexed: 10/23/2022]
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