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Park J, Shin YH, Hwang S, Kim J, Moon DH, Kang I, Ko YJ, Chung B, Nam H, Kim S, Moon K, Oh KB, Cho JC, Lee SK, Oh DC. Discovery of Terminal Oxazole-Bearing Natural Products by a Targeted Metabologenomic Approach. Angew Chem Int Ed Engl 2024; 63:e202402465. [PMID: 38482567 DOI: 10.1002/anie.202402465] [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: 02/03/2024] [Indexed: 04/13/2024]
Abstract
A targeted metabologenomic method was developed to selectively discover terminal oxazole-bearing natural products from bacteria. For this, genes encoding oxazole cyclase, a key enzyme in terminal oxazole biosynthesis, were chosen as the genomic signature to screen bacterial strains that may produce oxazole-bearing compounds. Sixteen strains were identified from the screening of a bacterial DNA library (1,000 strains) using oxazole cyclase gene-targeting polymerase chain reaction (PCR) primers. The PCR amplicon sequences were subjected to phylogenetic analysis and classified into nine clades. 1H-13C coupled-HSQC NMR spectra obtained from the culture extracts of the hit strains enabled the unequivocal detection of the target compounds, including five new oxazole compounds, based on the unique 1JCH values and chemical shifts of oxazole: lenzioxazole (1) possessing an unprecedented cyclopentane, permafroxazole (2) bearing a tetraene conjugated with carboxylic acid, tenebriazine (3) incorporating two modified amino acids, and methyl-oxazolomycins A and B (4 and 5). Tenebriazine displayed inhibitory activity against pathogenic fungi, whereas methyl-oxazolomycins A and B (4 and 5) selectively showed anti-proliferative activity against estrogen receptor-positive breast cancer cells. This metabologenomic method enables the logical and efficient discovery of new microbial natural products with a target structural motif without the need for isotopic labeling.
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Affiliation(s)
- Jiyoon Park
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yern-Hyerk Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sunghoon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jungwoo Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Dong Hyun Moon
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Ilnam Kang
- Department of Biological Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance, National Center for Inter-University Research Facilities (NCIRF), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Beomkoo Chung
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences and Natural Products Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyungsung Nam
- Department of Chemistry, College of Natural Sciences, and Natural Products Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seokhee Kim
- Department of Chemistry, College of Natural Sciences, and Natural Products Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Kyuho Moon
- College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Ki-Bong Oh
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences and Natural Products Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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Yiannakas E, Grimes MI, Whitelegge JT, Fürstner A, Hulme AN. An Alkyne‐Metathesis‐Based Approach to the Synthesis of the Anti‐Malarial Macrodiolide Samroiyotmycin A. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ektoras Yiannakas
- School of Chemistry University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Mark I. Grimes
- School of Chemistry University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - James T. Whitelegge
- School of Chemistry University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Alois Fürstner
- Department of Organometallic Chemistry Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alison N. Hulme
- School of Chemistry University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
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Yiannakas E, Grimes MI, Whitelegge JT, Fürstner A, Hulme AN. An Alkyne-Metathesis-Based Approach to the Synthesis of the Anti-Malarial Macrodiolide Samroiyotmycin A. Angew Chem Int Ed Engl 2021; 60:18504-18508. [PMID: 34076945 PMCID: PMC8456858 DOI: 10.1002/anie.202105732] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Indexed: 11/11/2022]
Abstract
We report the first total synthesis of samroiyotmycin A (1), a C2 -symmetric 20-membered anti-malarial macrodiolide isolated from Streptomyces sp. The convergent synthetic strategy orchestrates bisalkyne fragment-assembly using an unprecedented Schöllkopf-type condensation on a substituted β-lactone and an ambitious late-stage one-pot alkyne cross metathesis-ring-closing metathesis (ACM-RCAM) reaction. The demanding alkyne metathesis sequence is achieved using the latest generation of molybdenum alkylidynes endowed with a tripodal silanolate ligand framework. Subsequent conversion to the required E-alkenes uses contemporary hydrometallation chemistry catalysed by tetrameric cluster [{Cp*RuCl}4 ].
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Affiliation(s)
- Ektoras Yiannakas
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Mark I Grimes
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - James T Whitelegge
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Alois Fürstner
- Department of Organometallic Chemistry, Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Alison N Hulme
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
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Abstract
Covering: up to mid-2020 Terpenoids, also called isoprenoids, are the largest and most structurally diverse family of natural products. Found in all domains of life, there are over 80 000 known compounds. The majority of characterized terpenoids, which include some of the most well known, pharmaceutically relevant, and commercially valuable natural products, are produced by plants and fungi. Comparatively, terpenoids of bacterial origin are rare. This is counter-intuitive to the fact that recent microbial genomics revealed that almost all bacteria have the biosynthetic potential to create the C5 building blocks necessary for terpenoid biosynthesis. In this review, we catalogue terpenoids produced by bacteria. We collected 1062 natural products, consisting of both primary and secondary metabolites, and classified them into two major families and 55 distinct subfamilies. To highlight the structural and chemical space of bacterial terpenoids, we discuss their structures, biosynthesis, and biological activities. Although the bacterial terpenome is relatively small, it presents a fascinating dichotomy for future research. Similarities between bacterial and non-bacterial terpenoids and their biosynthetic pathways provides alternative model systems for detailed characterization while the abundance of novel skeletons, biosynthetic pathways, and bioactivies presents new opportunities for drug discovery, genome mining, and enzymology.
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Affiliation(s)
- Jeffrey D Rudolf
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
| | - Tyler A Alsup
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
| | - Baofu Xu
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
| | - Zining Li
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
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Lacey HJ, Booth TJ, Vuong D, Rutledge PJ, Lacey E, Chooi YH, Piggott AM. Conglobatins B-E: cytotoxic analogues of the C 2-symmetric macrodiolide conglobatin. J Antibiot (Tokyo) 2020; 73:756-765. [PMID: 32555501 DOI: 10.1038/s41429-020-0332-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/04/2020] [Accepted: 05/09/2020] [Indexed: 01/19/2023]
Abstract
Chemical investigation of a previously unreported indigenous Australian Streptomyces strain MST-91080 has identified six novel analogues related to the oxazole-pendanted macrodiolide, conglobatin. Phylogenetic analysis of the 16S rRNA gene sequence identified MST-91080 as a species of Streptomyces, distinct from reported conglobatin producer, Streptomyces conglobatus ATCC 31005. Conglobatins B-E diverge from conglobatin through differing patterns of methylation on the macrodiolide skeleton. The altered methyl positions suggest a deviation from the published biosynthetic pathway, which proposed three successive methylmalonyl-CoA extender unit additions to the conglobatin monomer. Conglobatins B1, C1 and C2 exhibited more potent cytotoxic activity selectively against the NS-1 myeloma cell line (IC50 0.084, 1.05 and 0.45 µg ml-1, respectively) compared with conglobatin (IC50 1.39 µg ml-1).
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Affiliation(s)
- Heather J Lacey
- Microbial Screening Technologies, Smithfield, Sydney, NSW, 2164, Australia. .,School of Chemistry, The University of Sydney, Camperdown, Sydney, NSW, 2006, Australia.
| | - Thomas J Booth
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Daniel Vuong
- Microbial Screening Technologies, Smithfield, Sydney, NSW, 2164, Australia
| | - Peter J Rutledge
- School of Chemistry, The University of Sydney, Camperdown, Sydney, NSW, 2006, Australia
| | - Ernest Lacey
- Microbial Screening Technologies, Smithfield, Sydney, NSW, 2164, Australia.,Department of Molecular Sciences, Macquarie University, North Ryde, Sydney, NSW, 2109, Australia
| | - Yit-Heng Chooi
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Andrew M Piggott
- Department of Molecular Sciences, Macquarie University, North Ryde, Sydney, NSW, 2109, Australia
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Gui M, Zhang MX, Wu WH, Sun P. Natural Occurrence, Bioactivity and Biosynthesis of Elaiophylin Analogues. Molecules 2019; 24:molecules24213840. [PMID: 31731388 PMCID: PMC6864862 DOI: 10.3390/molecules24213840] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 11/24/2022] Open
Abstract
Elaiophylins belong to a special family of 16-membered macrodiolides with C2-symmetry. They have exhibited remarkable biological activities, such as antimicrobial, anthelmintic, anticancer, immunosuppressive, anti-inflammatory, antiviral, and α-glucosidase inhibitory activities. A member of elaiophylins, efomycin M, is as a specific small molecule inhibitor of selectin in preclinical trial for the treatment of psoriasis, ischemia-reperfusion, and allergy. The biosynthetic investigation of elaiophylins has uncovered a unique thioesterase, which is responsible for the formation of C2-symmetric diolide. We herein summarize the natural occurrence, bioactivity, and biosynthesis of elaiophylins covering the literatures from 1959 to 2019. Hopefully, this review will inspire further research interests of these compounds and encourage the discovery of new analogues by metabolic engineering or genome mining.
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Affiliation(s)
- Min Gui
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., 1518 West Jiangchang Road, Shanghai 200436, China;
| | - Meng-xue Zhang
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China;
- College of Food Science and Technology, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
| | - Wen-hui Wu
- College of Food Science and Technology, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
- Correspondence: (W.-h.W.); (P.S.); Tel.: +86-21-81871259 (P.S.)
| | - Peng Sun
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China;
- Correspondence: (W.-h.W.); (P.S.); Tel.: +86-21-81871259 (P.S.)
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8
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Liu X, Yang J, Fu J, Xie TG, Jiang PC, Jiang ZH, Zhu GY. Phytochemical and chemotaxonomic studies on the twigs of Cinnamomum cassia (Lauraceae). BIOCHEM SYST ECOL 2018. [DOI: 10.1016/j.bse.2018.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Steib P, Breit B. Enantioselective Rhodium‐Catalyzed Dimerization of ω‐Allenyl Carboxylic Acids: Straightforward Synthesis of
C
2
‐Symmetric Macrodiolides. Angew Chem Int Ed Engl 2018; 57:6572-6576. [DOI: 10.1002/anie.201803369] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Philip Steib
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
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10
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Steib P, Breit B. Enantioselective Rhodium‐Catalyzed Dimerization of ω‐Allenyl Carboxylic Acids: Straightforward Synthesis of
C
2
‐Symmetric Macrodiolides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803369] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Philip Steib
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
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Li S, Mou Q, Xu X, Qi S, Leung PHM. Synergistic antibacterial activity between penicillenols and antibiotics against methicillin-resistant Staphylococcus aureus. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172466. [PMID: 29892433 PMCID: PMC5990757 DOI: 10.1098/rsos.172466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Penicillenol A2 (isolated from deep-sea fungus Penicillium biourgeianum DFFSCS023) has good antibacterial activity against methicillin-sensitive Staphylococcus aureus and in combination with beta-lactam antibiotics it could significantly decrease methicillin-resistant Staphylococcus aureus (MRSA) survival, which provides a novel treatment consideration for MRSA-caused infections.
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Affiliation(s)
- Shuihong Li
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pathogenic Biology, Medical College, University of South China, Hengyang 421001, People's Republic of China
| | - Qianqian Mou
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Kong 999077, People's Republic of China
| | - Xinya Xu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, People's Republic of China
| | - Shuhua Qi
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, People's Republic of China
| | - Polly H. M. Leung
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Kong 999077, People's Republic of China
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Abstract
Covering: July 2012 to June 2015. Previous review: Nat. Prod. Rep., 2013, 30, 869-915The structurally diverse imidazole-, oxazole-, and thiazole-containing secondary metabolites are widely distributed in terrestrial and marine environments, and exhibit extensive pharmacological activities. In this review the latest progress involving the isolation, biological activities, and chemical and biogenetic synthesis studies on these natural products has been summarized.
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Affiliation(s)
- Zhong Jin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China. and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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Supong K, Sripreechasak P, Tanasupawat S, Danwisetkanjana K, Rachtawee P, Pittayakhajonwut P. Investigation on antimicrobial agents of the terrestrial Streptomyces sp. BCC71188. Appl Microbiol Biotechnol 2016; 101:533-543. [DOI: 10.1007/s00253-016-7804-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/25/2016] [Accepted: 08/09/2016] [Indexed: 10/24/2022]
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14
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Supong K, Thawai C, Choowong W, Kittiwongwattana C, Thanaboripat D, Laosinwattana C, Koohakan P, Parinthawong N, Pittayakhajonwut P. Antimicrobial compounds from endophytic Streptomyces sp. BCC72023 isolated from rice ( Oryza sativa L.). Res Microbiol 2016; 167:290-298. [DOI: 10.1016/j.resmic.2016.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/12/2016] [Accepted: 01/14/2016] [Indexed: 02/03/2023]
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Zhou Y, Murphy AC, Samborskyy M, Prediger P, Dias LC, Leadlay PF. Iterative Mechanism of Macrodiolide Formation in the Anticancer Compound Conglobatin. ACTA ACUST UNITED AC 2016; 22:745-54. [PMID: 26091168 PMCID: PMC4504003 DOI: 10.1016/j.chembiol.2015.05.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/15/2015] [Accepted: 05/17/2015] [Indexed: 11/25/2022]
Abstract
Conglobatin is an unusual C2-symmetrical macrodiolide from the bacterium Streptomyces conglobatus with promising antitumor activity. Insights into the genes and enzymes that govern both the assembly-line production of the conglobatin polyketide and its dimerization are essential to allow rational alterations to be made to the conglobatin structure. We have used a rapid, direct in vitro cloning method to obtain the entire cluster on a 41-kbp fragment, encoding a modular polyketide synthase assembly line. The cloned cluster directs conglobatin biosynthesis in a heterologous host strain. Using a model substrate to mimic the conglobatin monomer, we also show that the conglobatin cyclase/thioesterase acts iteratively, ligating two monomers head-to-tail then re-binding the dimer product and cyclizing it. Incubation of two different monomers with the cyclase produces hybrid dimers and trimers, providing the first evidence that conglobatin analogs may in future become accessible through engineering of the polyketide synthase. The conglobatin cluster has been cloned using a single-step in vitro procedure The gene cluster in a heterologous strain confers the ability to produce conglobatin A model for ATP-dependent heterocyclization to the oxazole ring is proposed The conglobatin thioesterase catalyzes cyclodimerization by an iterative mechanism
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Affiliation(s)
- Yongjun Zhou
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK
| | - Annabel C Murphy
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK
| | | | - Patricia Prediger
- Faculty of Technology, State University of Campinas UNICAMP, CEP 134840332 Limeira, São Paulo, Brazil
| | - Luiz Carlos Dias
- Institute of Chemistry, State University of Campinas, UNICAMP, C.P. 6154, CEP 13084-971 Campinas, São Paulo, Brazil
| | - Peter F Leadlay
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK.
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Ai W, Lin XP, Tu Z, Tian XP, Lu X, Mangaladoss F, Zhong ZL, Liu Y. Axinelline A, a new COX-2 inhibitor fromStreptomyces axinellaeSCSIO02208. Nat Prod Res 2014; 28:1219-24. [DOI: 10.1080/14786419.2014.891204] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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