1
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Fontana C, de Meirelles JL, Verli H. Theoretical models of staurosporine and analogs uncover detailed structural information in biological solution. J Mol Graph Model 2024; 126:108653. [PMID: 37922640 DOI: 10.1016/j.jmgm.2023.108653] [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: 08/08/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023]
Abstract
Staurosporine and its analogs (STA-analogs) are indolocarbazoles (ICZs) compounds able to inhibit kinase proteins in a non-specific way, while present antimicrobial and cytostatic properties. The knowledge of molecular features associated to the complexation, including the ligand shape in solution and thermodynamics of complexation, is substantial to the development of new bioactive ICZs with improved therapeutic properties. In this context, the empirical approach of GROMOS force field is able to accurately reproduce condensed phase physicochemical properties of molecular systems after parameterization. Hence, through parameterization under GROMOS force field and molecular simulations, we assessed STA-analogs dynamics in aqueous solution, as well as its interaction with water to probe conformational and structural features involved in complexation to therapeutic targets. The coexistence of multiple conformers observed in simulations, and confirmed by metadynamics calculations, expanding the conformational space knowledge of these ligands with potential implications in understanding the ligand conformational selection during complexation. Also, changes in availability to H-bonding concerning the different substituents and water can reflect on effects at complexation free energy due to variation at the desolvation energetic costs. Based on these results, we expect the obtained structural data provide systemic framework for rational chemical modification of STA-analogs.
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Affiliation(s)
- Crisciele Fontana
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Av. Bento Gonçalves, 9500 (Caixa Postal 15005), Porto Alegre, CEP 91501-970, RS, Brazil
| | - João Luiz de Meirelles
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Av. Bento Gonçalves, 9500 (Caixa Postal 15005), Porto Alegre, CEP 91501-970, RS, Brazil
| | - Hugo Verli
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Av. Bento Gonçalves, 9500 (Caixa Postal 15005), Porto Alegre, CEP 91501-970, RS, Brazil.
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2
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Bitzenhofer NL, Classen T, Jaeger KE, Loeschcke A. Biotransformation Of l-Tryptophan To Produce Arcyriaflavin A With Pseudomonas putida KT2440. Chembiochem 2023; 24:e202300576. [PMID: 37743253 DOI: 10.1002/cbic.202300576] [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: 08/16/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
Natural products such as indolocarbazoles are a valuable source of highly bioactive compounds with numerous potential applications in the pharmaceutical industry. Arcyriaflavin A, isolated from marine invertebrates and slime molds, is one representative of this group and acts as a cyclin D1-cyclin-dependent kinase 4 inhibitor. To date, access to this compound has mostly relied on multi-step total synthesis. In this study, biosynthetic access to arcyriaflavin A was explored using recombinant Pseudomonas putida KT2440 based on a previously generated producer strain. We used a Design of Experiment approach to analyze four key parameters, which led to the optimization of the bioprocess. By engineering the formation of outer membrane vesicles and using an adsorbent in the culture broth, we succeeded to increase the yield of arcyriaflavin A in the cell-free supernatant, resulting in a nearly eight-fold increase in the overall production titers. Finally, we managed to scale up the bioprocess leading to a final yield of 4.7 mg arcyriaflavin A product isolated from 1 L of bacterial culture. Thus, this study showcases an integrative approach to improve biotransformation and moreover also provides starting points for further optimization of indolocarbazole production in P. putida.
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Affiliation(s)
- Nora Lisa Bitzenhofer
- Institute of Molecular Enzyme Technology (IMET), Heinrich Heine University Düsseldorf located at Forschungszentrum Jülich, Stetternicher Forst, Building 15.8, 52426, Jülich, Germany
| | - Thomas Classen
- Institute of Bio- and Geosciences (IBG-1): Biotechnology, Forschungszentrum Jülich GmbH, Stetternicher Forst, Building 15.8, 52426, Jülich, Germany
| | - Karl-Erich Jaeger
- Institute of Molecular Enzyme Technology (IMET), Heinrich Heine University Düsseldorf located at Forschungszentrum Jülich, Stetternicher Forst, Building 15.8, 52426, Jülich, Germany
- Institute of Bio- and Geosciences (IBG-1): Biotechnology, Forschungszentrum Jülich GmbH, Stetternicher Forst, Building 15.8, 52426, Jülich, Germany
| | - Anita Loeschcke
- Institute of Molecular Enzyme Technology (IMET), Heinrich Heine University Düsseldorf located at Forschungszentrum Jülich, Stetternicher Forst, Building 15.8, 52426, Jülich, Germany
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3
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Wang S, Chen Z, Chen S, Shao W, Chen Y, Deng GJ. Iodide-Dependent Selective Dehydroaromatization Affording Maleimide-Fused 9,10-Phenanthrenes and Their Analogues. Org Lett 2023; 25:7142-7147. [PMID: 37732874 DOI: 10.1021/acs.orglett.3c02638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
A novel and selective synthesis of polycyclic fused maleimides from easily available raw materials under metal-free conditions is presented. This cascade protocol involves self-condensation of cyclohexanones, followed by Diels-Alder reaction with maleimides, intramolecular dehydration, and selective dehydroaromatization in a one-pot fashion, affording maleimide-fused 9,10-phenanthrenes and their analogues in satisfactory yields. Notably, iodide reagents play a critical role in switching the selectivity toward full or partial dehydrogenation compounds.
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Affiliation(s)
- Shuowen Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Zhuohao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Wen Shao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Ya Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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4
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Dong Y, Luo LX, Hua C, He ZJ, Chen Y, Shi ZC, Li ZH, He B. 'On Water'-Promoted Three-Component Tandem Michael Addition/D-A Cycloaddition Reaction to Construct Polycyclic N-Heterocycles Derivatives. Chem Biodivers 2023; 20:e202300100. [PMID: 36930226 DOI: 10.1002/cbdv.202300100] [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: 01/20/2023] [Accepted: 03/01/2023] [Indexed: 03/18/2023]
Abstract
'On Water'-promoted the three-component tandem Michael addition/D-A cycloaddition reaction in 80 °C at 3 h has been developed without employing any catalyst and organic solvent. The process allows facile access to polycyclic N-heterocycles derivatives contain indole and maleimide from easily accessible starting materials in moderate to high yields (up to 91 %). Compared with conventional reaction conditions, this reaction not only improves the reaction efficiency and rate but also minimizes the side reaction.
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Affiliation(s)
- Yu Dong
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Liang-Xian Luo
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Chen Hua
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Ze-Jing He
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Yong Chen
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu, 610041, P. R. China
| | - Zhong-Hui Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Bing He
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
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5
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Fang F, Zheng H, Li W, Mao G, Chen S, Deng G. Metal‐ and Solvent‐Free Synthesis of Maleimide Fused Carbazoles from (Indol‐3‐Yl)cyclohexanones and Maleimides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fang Fang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
- College of Materials and Chemical Engineering Hunan City University Yiyang 413000 People's Republic of China
| | - Haolin Zheng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Weipeng Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 People's Republic of China
| | - Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
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6
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Goel B, Tripathi N, Mukherjee D, Jain SK. Glycorandomization: A promising diversification strategy for the drug development. Eur J Med Chem 2021; 213:113156. [PMID: 33460832 DOI: 10.1016/j.ejmech.2021.113156] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/04/2021] [Accepted: 01/04/2021] [Indexed: 12/13/2022]
Abstract
Glycorandomization is a natural product derivatization strategy in which different sugar moieties are linked to the aglycone part of the naturally existing glycosides to create glycorandomized libraries. Sugars attached to the natural products are responsible for affecting their solubility, mechanism of action, target recognition, and toxicity and thus, by changing the sugar part, these properties could be modified. Glycorandomization can be done via two approaches (i) a synthetic approach known as neoglycorandomization, and (ii) chemoenzymatic approach including in-vitro and in-vivo glycorandomization. Glycorandomization can be a promising technology for the drug discovery that has proved its potential to improve pharmacokinetic (solubility) and pharmacodynamic profile (mechanism of action, toxicity, and target recognition) of the parent compounds. The substrate flexibility of glycosyltransferases and other enzymes towards sugars and/or aglycone substrates has made this technique versatile. Further, the enzymes can be altered by genetic engineering to generate glycorandomized libraries of diverse natural product scaffolds. This technique has the potential to produce new compounds that can be helpful to the mankind by treating the threatening disease states. This review covers the different strategies for glycorandomization as a tool in drug discovery and development. The fundamentals of glycorandomization, different types, and further development of differentially glycorandomized libraries of natural products and small molecule based drugs have been discussed.
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Affiliation(s)
- Bharat Goel
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
| | - Nancy Tripathi
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
| | - Debaraj Mukherjee
- Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Shreyans K Jain
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India.
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7
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Dong Y, Mei T, Ye JX, Chen XL, Jiang H, Chang B, Wang ZF, Shi ZC, Li ZH, He B. Assembly of polycyclic N-heterocycles via copper-catalyzed cycloamination of indolylquinones and aromatic amines. Org Biomol Chem 2021; 19:4593-4598. [PMID: 33961001 DOI: 10.1039/d1ob00666e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The copper-catalyzed cycloamination of indolylquinones and various (hetero)aromatic amines under ligand-free conditions for the synthesis of polycyclic N-heterocycles has been developed. This method allows facile access to polycyclic N-heterocycles with the tolerance of chloride, bromide, amino, thio, etc. groups in moderate to high yields (60-89%).
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Affiliation(s)
- Yu Dong
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Ting Mei
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Ji-Xian Ye
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Xiang-Long Chen
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Hui Jiang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Bo Chang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Zhi-Fan Wang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu 610041, P. R. China
| | - Zhong-Hui Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
| | - Bing He
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China.
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8
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Chilczuk T, Schäberle TF, Vahdati S, Mettal U, El Omari M, Enke H, Wiese M, König GM, Niedermeyer THJ. Halogenation-Guided Chemical Screening Provides Insight into Tjipanazole Biosynthesis by the Cyanobacterium Fischerella ambigua. Chembiochem 2020; 21:2170-2177. [PMID: 32182403 PMCID: PMC7497240 DOI: 10.1002/cbic.202000025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/21/2020] [Indexed: 12/19/2022]
Abstract
Halogenated natural products (HNPs) show a wide range of interesting biological activities. Chemistry-guided screening with a software tool dedicated to identifying halogenated compounds in HPLC-MS data indicated the presence of several uncharacterised HNPs in an extract of the cyanobacterium Fischerella ambigua (Näg.) Gomont 108b. Three new natural products, tjipanazoles K, L, and M, were isolated from this strain together with the known tjipanazoles D and I. Taking into account the structures of all tjipanazole derivatives detected in this strain, reanalysis of the tjipanazole biosynthetic gene cluster allowed us to propose a biosynthetic pathway for the tjipanazoles. As the isolated tjipanazoles show structural similarity to arcyriaflavin A, an inhibitor of the clinically relevant multidrug-transporter ABCG2 overexpressed by different cancer cell lines, the isolated compounds were tested for ABCG2 inhibitory activity. Only tjipanazole K showed appreciable transporter inhibition, whereas the compounds lacking the pyrrolo[3,4-c] ring or featuring additional chloro substituents were found to be much less active.
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Affiliation(s)
- Tomasz Chilczuk
- Department of Pharmaceutical Biology/Pharmacognosy Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Hoher Weg 8, 06120, Halle (Saale), Germany
| | - Till F Schäberle
- Institute for Insect Biotechnology, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 26-32, 35392, Gießen, Germany
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Winchesterstrasse 2, 35394, Gießen, Germany
| | - Sahel Vahdati
- Department of Pharmaceutical and Cell Biological Chemistry, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany
| | - Ute Mettal
- Institute for Insect Biotechnology, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 26-32, 35392, Gießen, Germany
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Winchesterstrasse 2, 35394, Gießen, Germany
| | - Mustafa El Omari
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Heike Enke
- Cyano Biotech GmbH, Magnusstraße 11, 12489, Berlin, Germany
| | - Michael Wiese
- Department of Pharmaceutical and Cell Biological Chemistry, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany
| | - Gabriele M König
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Timo H J Niedermeyer
- Department of Pharmaceutical Biology/Pharmacognosy Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Hoher Weg 8, 06120, Halle (Saale), Germany
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9
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Identification and Characterization of a Novel N- and O-Glycosyltransferase from Saccharopolyspora erythraea. Molecules 2020; 25:molecules25153400. [PMID: 32727097 PMCID: PMC7435583 DOI: 10.3390/molecules25153400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 11/26/2022] Open
Abstract
Glycosyltransferases are important enzymes which are often used as tools to generate novel natural products. In this study, we describe the identification and characterization of an inverting N- and O-glycosyltransferase from Saccharopolyspora erythraea NRRL2338. When feeding experiments with 1,4-diaminoanthraquinone in Saccharopolyspora erythraea were performed, the formation of new compounds (U3G and U3DG) was observed by HPLC-MS. Structure elucidation by NMR revealed that U3G consists of two compounds, N1-α-glucosyl-1,4-diaminoanthraquinone and N1-β-glucosyl-1,4-diaminoanthraquinone. Based on UV and MS data, U3DG is a N1,N4-diglucosyl-1,4-diaminoanthraquinone. In order to find the responsible glycosyltransferase, gene deletion experiments were performed and we identified the glycosyltransferase Sace_3599, which belongs to the CAZy family 1. When Streptomyces albus J1074, containing the dTDP-d-glucose synthase gene oleS and the plasmid pUWL-A-sace_3599, was used as host, U3 was converted to the same compounds. Protein production in Escherichia coli and purification of Sace_3599 was carried out. The enzyme showed glycosyl hydrolase activity and was able to produce mono- and di-N-glycosylated products in vitro. When UDP-α-d-glucose was used as a sugar donor, U3 was stereoselective converted to N1-β-glucosyl-1,4-diaminoanthraquinone and N1,N4-diglucosyl-1,4-diaminoanthraquinone. The use of 1,4-dihydroxyanthraquinone as a substrate in in vitro experiments also led to the formation of mono-glucosylated and di-glucosylated products, but in lower amounts. Overall, we identified and characterized a novel glycosyltransferase which shows glycohydrolase activity and the ability to glycosylate “drug like” structures forming N- and O-glycosidic bonds.
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10
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Zenkov RG, Ektova LV, Vlasova OА, Belitskiy GА, Yakubovskaya MG, Kirsanov KI. Indolo[2,3-a]carbazoles: diversity, biological properties, application in antitumor therapy. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02714-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Dong Y, Yang J, Zhang H, Zhan XY, He S, Shi ZC, Zhang XM, Wang JY. Cobalt-Catalyzed Cycloamination: Synthesis and Photophysical Properties of Polycyclic N-Heterocycles. Org Lett 2020; 22:5151-5156. [DOI: 10.1021/acs.orglett.0c01753] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yu Dong
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian Yang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hua Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiao-Yu Zhan
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shuai He
- Southwest Minzu University, Chengdu 610041, P. R. China
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu 610041, P. R. China
| | - Xiao-Mei Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
| | - Ji-Yu Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
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12
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Yang CL, Zhang B, Xue WW, Li W, Xu ZF, Shi J, Shen Y, Jiao RH, Tan RX, Ge HM. Discovery, Biosynthesis, and Heterologous Production of Loonamycin, a Potent Anticancer Indolocarbazole Alkaloid. Org Lett 2020; 22:4665-4669. [DOI: 10.1021/acs.orglett.0c01456] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Cheng Long Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Bo Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Wen Wen Xue
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Wu Li
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Zi Fei Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Jing Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Yan Shen
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Rui Hua Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Ren Xiang Tan
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Hui Ming Ge
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
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13
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New Sipanmycin Analogues Generated by Combinatorial Biosynthesis and Mutasynthesis Approaches Relying on the Substrate Flexibility of Key Enzymes in the Biosynthetic Pathway. Appl Environ Microbiol 2020; 86:AEM.02453-19. [PMID: 31732573 DOI: 10.1128/aem.02453-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
The appearance of new infectious diseases, the increase in multidrug-resistant bacteria, and the need for more effective chemotherapeutic agents have oriented the interests of researchers toward the search for metabolites with novel or improved bioactivities. Sipanmycins are disaccharyl glycosylated macrolactams that exert antibiotic and cytotoxic activities. By applying combinatorial biosynthesis and mutasynthesis approaches, we have generated eight new members of the sipanmycin family. The introduction of plasmids harboring genes responsible for the biosynthesis of several deoxysugars into sipanmycin-producing Streptomyces sp. strain CS149 led to the production of six derivatives with altered glycosylation patterns. After structural elucidation of these new metabolites, we conclude that some of these sugars are the result of the combination of the enzymatic machinery encoded by the introduced plasmids and the native enzymes of the d-sipanose biosynthetic pathway of the wild-type CS149 strain. In addition, two analogues of the parental compounds with a modified polyketide backbone were generated by a mutasynthesis approach, feeding cultures of a mutant strain defective in sipanmycin biosynthesis with 3-aminopentanoic acid. The generation of new sipanmycin analogues shown in this work relied on the substrate flexibility of key enzymes involved in sipanmycin biosynthesis, particularly the glycosyltransferase pair SipS9/SipS14 and enzymes SipL3, SipL1, SipL7, and SipL2, which are involved in the incorporation of the polyketide synthase starting unit.IMPORTANCE Combinatorial biosynthesis has proved its usefulness in generating derivatives of already known compounds with novel or improved pharmacological properties. Sipanmycins are a family of glycosylated macrolactams produced by Streptomyces sp. strain CS149, whose antiproliferative activity is dependent on the sugar moieties attached to the aglycone. In this work, we report the generation of several sipanmycin analogues with different deoxysugars, showing the high degree of flexibility exerted by the glycosyltransferase machinery with respect to the recognition of diverse nucleotide-activated sugars. In addition, modifications in the macrolactam ring were introduced by mutasynthesis approaches, indicating that the enzymes involved in incorporating the starter unit have a moderate ability to introduce different types of β-amino acids. In conclusion, we have proved the substrate flexibility of key enzymes involved in sipanmycin biosynthesis, especially the glycosyltransferases, which can be exploited in future experiments.
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A Co-Culturing Approach Enables Discovery and Biosynthesis of a Bioactive Indole Alkaloid Metabolite. Molecules 2020; 25:molecules25020256. [PMID: 31936318 PMCID: PMC7024260 DOI: 10.3390/molecules25020256] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/26/2019] [Accepted: 01/03/2020] [Indexed: 12/19/2022] Open
Abstract
Whole-genome sequence data of the genus Streptomyces have shown a far greater chemical diversity of metabolites than what have been discovered under typical laboratory fermentation conditions. In our previous natural product discovery efforts on Streptomyces sp. MA37, a bacterium isolated from the rhizosphere soil sample in Legon, Ghana, we discovered a handful of specialised metabolites from this talented strain. However, analysis of the draft genome of MA37 suggested that most of the encoded biosynthetic gene clusters (BGCs) remained cryptic or silent, and only a small fraction of BGCs for the production of specialised metabolites were expressed when cultured in our laboratory conditions. In order to induce the expression of the seemingly silent BGCs, we have carried out a co-culture experiment by growing the MA37 strain with the Gram-negative bacterium Pseudomonas sp. in a co-culture chamber that allows co-fermentation of two microorganisms with no direct contact but allows exchange of nutrients, metabolites, and other chemical cues. This co-culture approach led to the upregulation of several metabolites that were not previously observed in the monocultures of each strain. Moreover, the co-culture induced the expression of the cryptic indole alkaloid BGC in MA37 and led to the characterization of the known indolocarbazole alkaloid, BE-13793C 1. Neither bacterium produced compound 1 when cultured alone. The structure of 1 was elucidated by Nuclear Magnetic Resonance (NMR), mass spectrometry analyses and comparison of experimental with literature data. A putative biosynthetic pathway of 1 was proposed. Furthermore, BE-13793C 1 showed strong anti-proliferative activity against HT-29 (ATCC HTB-38) cells but no toxic effect to normal lung (ATCC CCL-171) cells. To the best of our knowledge, this is the first report for the activity of 1 against HT-29. No significant antimicrobial and anti-trypanosomal activities for 1 were observed. This research provides a solid foundation for the fact that a co-culture approach paves the way for increasing the chemical diversity of strain MA37. Further characterization of other upregulated metabolites in this strain is currently ongoing in our laboratory.
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Guan H, Li Y, Zheng J, Liu N, Zhang J, Tan H. Important role of a LAL regulator StaR in the staurosporine biosynthesis and high-production of Streptomyces fradiae CGMCC 4.576. SCIENCE CHINA-LIFE SCIENCES 2019; 62:1638-1654. [PMID: 31820200 DOI: 10.1007/s11427-019-1597-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 11/26/2019] [Indexed: 01/27/2023]
Abstract
Staurosporine, belonging to indolocarbazole compounds, is regarded as an excellent lead compound for synthesizing antitumor agents as a potent inhibitor against various protein kinases. In this study, two separate clusters (cluster A and cluster B), corresponding to biosyntheses of K-252c (staurosporine aglycone) and sugar moiety, were identified in Streptomyces fradiae CGMCC 4.576 and heterologously expressed in Streptomyces coelicolor M1146 separately or together. StaR, a cluster-situated LAL family regulator, activates staurosporine biosynthesis by binding to the promoter regions of staO-staC and staG-staN. The conserved sequences GGGGG and GCGCG were found through gradually truncating promoters of staO and staG, and further determined by mutational experiments. Overexpression of staR with the supplementation of 0.01 g L-1 FeSO4 increased staurosporine production to 5.2-fold compared with that of the parental strain Streptomyces fradiae CGMCC 4.576 in GYM medium. Our results provided an approach for improvement of staurosporine production mediated by a positive regulator and established the basis for dissecting the regulatory mechanisms of other indolocarbazole compounds with clinical application value.
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Affiliation(s)
- Hanye Guan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yue Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Jiazhen Zheng
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ning Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jihui Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huarong Tan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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16
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Hughes RR, Shaaban KA, Ponomareva LV, Horn J, Zhang C, Zhan CG, Voss SR, Leggas M, Thorson JS. OleD Loki as a Catalyst for Hydroxamate Glycosylation. Chembiochem 2019; 21:952-957. [PMID: 31621997 DOI: 10.1002/cbic.201900601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 12/14/2022]
Abstract
Herein we describe the ability of the permissive glycosyltransferase (GT) OleD Loki to convert a diverse set of >15 histone deacetylase (HDAC) inhibitors (HDACis) into their corresponding hydroxamate glycosyl esters. Representative glycosyl esters were subsequently evaluated in assays for cancer cell line cytotoxicity, chemical and enzymatic stability, and axolotl embryo tail regeneration. Computational substrate docking models were predictive of enzyme-catalyzed turnover and suggest certain HDACis may form unproductive, potentially inhibitory, complexes with GTs.
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Affiliation(s)
- Ryan R Hughes
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Khaled A Shaaban
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Larissa V Ponomareva
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Jamie Horn
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Chunhui Zhang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Chang-Guo Zhan
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - S Randal Voss
- Department of Neuroscience, Spinal Cord and Brain Injury Research Center, Ambystoma Genetic Stock Center, University of Kentucky, UK Medical Center MN 150, Lexington, KY, 40536, USA
| | - Markos Leggas
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Jon S Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
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Mestrom L, Przypis M, Kowalczykiewicz D, Pollender A, Kumpf A, Marsden SR, Bento I, Jarzębski AB, Szymańska K, Chruściel A, Tischler D, Schoevaart R, Hanefeld U, Hagedoorn PL. Leloir Glycosyltransferases in Applied Biocatalysis: A Multidisciplinary Approach. Int J Mol Sci 2019; 20:ijms20215263. [PMID: 31652818 PMCID: PMC6861944 DOI: 10.3390/ijms20215263] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/13/2023] Open
Abstract
Enzymes are nature’s catalyst of choice for the highly selective and efficient coupling of carbohydrates. Enzymatic sugar coupling is a competitive technology for industrial glycosylation reactions, since chemical synthetic routes require extensive use of laborious protection group manipulations and often lack regio- and stereoselectivity. The application of Leloir glycosyltransferases has received considerable attention in recent years and offers excellent control over the reactivity and selectivity of glycosylation reactions with unprotected carbohydrates, paving the way for previously inaccessible synthetic routes. The development of nucleotide recycling cascades has allowed for the efficient production and reuse of nucleotide sugar donors in robust one-pot multi-enzyme glycosylation cascades. In this way, large glycans and glycoconjugates with complex stereochemistry can be constructed. With recent advances, LeLoir glycosyltransferases are close to being applied industrially in multi-enzyme, programmable cascade glycosylations.
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Affiliation(s)
- Luuk Mestrom
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Marta Przypis
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland.
| | - Daria Kowalczykiewicz
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland.
| | - André Pollender
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
| | - Antje Kumpf
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
- Microbial Biotechnology, Faculty of Biology & Biotechnology, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany.
| | - Stefan R Marsden
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Isabel Bento
- EMBL Hamburg, Notkestraβe 85, 22607 Hamburg, Germany.
| | - Andrzej B Jarzębski
- Institute of Chemical Engineering, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland.
| | - Katarzyna Szymańska
- Department of Chemical and Process Engineering, Silesian University of Technology, Ks. M. Strzody 7, 44-100 Gliwice, Poland.
| | | | - Dirk Tischler
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
- Microbial Biotechnology, Faculty of Biology & Biotechnology, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany.
| | - Rob Schoevaart
- ChiralVision, J.H. Oortweg 21, 2333 CH Leiden, The Netherlands.
| | - Ulf Hanefeld
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Peter-Leon Hagedoorn
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
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18
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Myronovskyi M, Luzhetskyy A. Heterologous production of small molecules in the optimized Streptomyces hosts. Nat Prod Rep 2019; 36:1281-1294. [PMID: 31453623 DOI: 10.1039/c9np00023b] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Time span of literature covered: 2010-2018The genome mining of streptomycetes has revealed their great biosynthetic potential to produce novel natural products. One of the most promising exploitation routes of this biosynthetic potential is the refactoring and heterologous expression of corresponding biosynthetic gene clusters in a panel of specifically selected and optimized chassis strains. This article will review selected recent reports on heterologous production of natural products in streptomycetes. In the first part, the importance of heterologous production for drug discovery will be discussed. In the second part, the review will discuss recently developed genetic control elements (such as promoters, ribosome binding sites, terminators) and their application to achieve successful heterologous expression of biosynthetic gene clusters. Finally, the most widely used Streptomyces hosts for heterologous expression of biosynthetic gene clusters will be compared in detail. The article will be of interest to natural product chemists, molecular biologists, pharmacists and all individuals working in the natural products drug discovery field.
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Affiliation(s)
| | - Andriy Luzhetskyy
- Saarland University, Department Pharmacy, Saarbrücken, Germany and Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrücken, Germany.
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19
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Greule A, Stok JE, De Voss JJ, Cryle MJ. Unrivalled diversity: the many roles and reactions of bacterial cytochromes P450 in secondary metabolism. Nat Prod Rep 2019; 35:757-791. [PMID: 29667657 DOI: 10.1039/c7np00063d] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Covering: 2000 up to 2018 The cytochromes P450 (P450s) are a superfamily of heme-containing monooxygenases that perform diverse catalytic roles in many species, including bacteria. The P450 superfamily is widely known for the hydroxylation of unactivated C-H bonds, but the diversity of reactions that P450s can perform vastly exceeds this undoubtedly impressive chemical transformation. Within bacteria, P450s play important roles in many biosynthetic and biodegradative processes that span a wide range of secondary metabolite pathways and present diverse chemical transformations. In this review, we aim to provide an overview of the range of chemical transformations that P450 enzymes can catalyse within bacterial secondary metabolism, with the intention to provide an important resource to aid in understanding of the potential roles of P450 enzymes within newly identified bacterial biosynthetic pathways.
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Affiliation(s)
- Anja Greule
- The Monash Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, ARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria 3800, Australia. and EMBL Australia, Monash University, Clayton, Victoria 3800, Australia
| | - Jeanette E Stok
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia.
| | - James J De Voss
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia.
| | - Max J Cryle
- The Monash Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, ARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria 3800, Australia. and EMBL Australia, Monash University, Clayton, Victoria 3800, Australia and Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.
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20
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Baulig A, Helmle I, Bader M, Wolf F, Kulik A, Al-Dilaimi A, Wibberg D, Kalinowski J, Gross H, Kaysser L. Biosynthetic reconstitution of deoxysugar phosphoramidate metalloprotease inhibitors using an N-P-bond-forming kinase. Chem Sci 2019; 10:4486-4490. [PMID: 31057776 PMCID: PMC6482885 DOI: 10.1039/c9sc00641a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/11/2019] [Indexed: 12/24/2022] Open
Abstract
Phosphoramidon is a potent metalloprotease inhibitor and a widespread tool in cell biology research. It contains a dipeptide backbone that is uniquely linked to a 6-deoxysugar via a phosphoramidate bridge. Herein, we report the identification of a gene cluster for the formation of phosphoramidon and its detailed characterization. In vitro reconstitution of the biosynthesis established TalE as a phosphoramidate-forming kinase and TalC as the glycosyltransferase which installs the l-rhamnose moiety by phosphoester linkage.
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Affiliation(s)
- Alexandra Baulig
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Irina Helmle
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany .
| | - Marius Bader
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Felix Wolf
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tübingen (IMIT) , Microbiology/Biotechnology , University of Tübingen , 72076 Tübingen , Germany
| | - Arwa Al-Dilaimi
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Daniel Wibberg
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Harald Gross
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
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21
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Guo Y, Wang Z, Zhu Y, Zhang Q, Wei D, Liu X, Fu Z. Access to polyfunctionalized carbazoles through π-extension of 2-methyl-3-oxoacetate indoles. Org Chem Front 2019. [DOI: 10.1039/c9qo01093a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A structurally diverse set of polyfunctionalized carbazoles was efficiently synthesized in acceptable to excellent yields.
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Affiliation(s)
- Yingying Guo
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhoulu Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Ying Zhu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qiaochu Zhang
- College of Chemistry
- Zhangzhou University
- Zhengzhou
- P. R. China
| | - Donghui Wei
- College of Chemistry
- Zhangzhou University
- Zhengzhou
- P. R. China
| | - Xiang Liu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
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22
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Xiao F, Li H, Xu M, Li T, Wang J, Sun C, Hong K, Li W. Staurosporine Derivatives Generated by Pathway Engineering in a Heterologous Host and Their Cytotoxic Selectivity. JOURNAL OF NATURAL PRODUCTS 2018; 81:1745-1751. [PMID: 30106291 DOI: 10.1021/acs.jnatprod.8b00103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two new staurosporine derivatives, staurosporines M1 and M2 (4 and 5), in addition to five previously reported metabolites (1-3, 6, and 7), were generated by the heterologous expression of engineered spc gene clusters in Streptomyces coelicolor M1146. The structures of these derivatives were determined by a combination of spectroscopic methods and CD measurement. Compounds 1, 2, 4, and 5 showed effective activities against three tumor cell lines (HCT-116, K562, and Huh 7.5), and 3 was active against HCT-116 and K562 cells. In addition, compounds 3 and 5 showed undetectable toxicity up to 100 μM toward the normal hepatic cell line LO2. Based on the IC50 values, their structure and activity relationships are discussed.
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Affiliation(s)
- Fei Xiao
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Huayue Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, 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 266000 , People's Republic of China
| | - Mingyuan Xu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Tong Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Ju Wang
- Key Laboratory of Experimental Marine Biology , Institute of Oceanology, Chinese Academy of Sciences , Qingdao 266071 , People's Republic of China
| | - Chaomin Sun
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266000 , People's Republic of China
- Key Laboratory of Experimental Marine Biology , Institute of Oceanology, Chinese Academy of Sciences , Qingdao 266071 , People's Republic of China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education of China, School of Pharmaceutical Sciences , Wuhan University , Wuhan 430071 , People's Republic of China
| | - Wenli Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, 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 266000 , People's Republic of China
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23
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Rudolf JD, Chang CY, Ma M, Shen B. Cytochromes P450 for natural product biosynthesis in Streptomyces: sequence, structure, and function. Nat Prod Rep 2017; 34:1141-1172. [PMID: 28758170 PMCID: PMC5585785 DOI: 10.1039/c7np00034k] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: up to January 2017Cytochrome P450 enzymes (P450s) are some of the most exquisite and versatile biocatalysts found in nature. In addition to their well-known roles in steroid biosynthesis and drug metabolism in humans, P450s are key players in natural product biosynthetic pathways. Natural products, the most chemically and structurally diverse small molecules known, require an extensive collection of P450s to accept and functionalize their unique scaffolds. In this review, we survey the current catalytic landscape of P450s within the Streptomyces genus, one of the most prolific producers of natural products, and comprehensively summarize the functionally characterized P450s from Streptomyces. A sequence similarity network of >8500 P450s revealed insights into the sequence-function relationships of these oxygen-dependent metalloenzymes. Although only ∼2.4% and <0.4% of streptomycete P450s have been functionally and structurally characterized, respectively, the study of streptomycete P450s involved in the biosynthesis of natural products has revealed their diverse roles in nature, expanded their catalytic repertoire, created structural and mechanistic paradigms, and exposed their potential for biomedical and biotechnological applications. Continued study of these remarkable enzymes will undoubtedly expose their true complement of chemical and biological capabilities.
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Affiliation(s)
- Jeffrey D Rudolf
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL 33458, USA
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24
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Ma L, Zhang W, Zhu Y, Zhang G, Zhang H, Zhang Q, Zhang L, Yuan C, Zhang C. Identification and characterization of a biosynthetic gene cluster for tryptophan dimers in deep sea-derived Streptomyces sp. SCSIO 03032. Appl Microbiol Biotechnol 2017; 101:6123-6136. [PMID: 28620687 DOI: 10.1007/s00253-017-8375-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/23/2017] [Accepted: 06/01/2017] [Indexed: 01/12/2023]
Abstract
Tryptophan dimers (TDs) are an important class of natural products with diverse bioactivities and share conserved biosynthetic pathways. We report the identification of a partial gene cluster (spm) responsible for the biosynthesis of a class of unusual TDs with non-planar skeletons including spiroindimicins (SPMs), indimicins (IDMs), and lynamicins (LNMs) from the deep-sea derived Streptomyces sp. SCSIO 03032. Bioinformatics analysis, targeted gene disruptions, and heterologous expression studies confirmed the involvement of the spm gene cluster in the biosynthesis of SPM/IDM/LNMs, and revealed the indispensable roles for the halogenase/reductase pair SpmHF, the amino acid oxidase SpmO, and the chromopyrrolic acid (CPA) synthase SpmD, as well as the positive regulator SpmR and the putative transporter SpmA. However, the spm gene cluster was unable to confer a heterologous host the ability to produce SPM/IDM/LNMs. In addition, the P450 enzyme SpmP and the monooxygenase SpmX2 were found to be non-relevant to the biosynthesis of SPM/IDM/LNMs. Sequence alignment and structure modeling suggested the lack of key conserved amino acid residues in the substrate-binding pocket of SpmP. Furthermore, feeding experiments in the non-producing ΔspmO mutant revealed several biosynthetic precursors en route to SPMs, indicating that key enzymes responsible for the biosynthesis of SPMs should be encoded by genes outside of the identified spm gene cluster. Finally, the biosynthetic pathways of SPM/IDM/LNMs are proposed to lay a basis for further insights into their intriguing biosynthetic machinery.
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Affiliation(s)
- Liang Ma
- 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, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjun 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, China
| | - Yiguang Zhu
- 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, China
| | - Guangtao 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, China
| | - Haibo 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, China
| | - Qingbo 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, China
| | - Liping 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, China
| | - Chengshan Yuan
- 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, China
| | - Changsheng 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, China.
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Asamizu S. Biosynthesis of nitrogen-containing natural products, C7N aminocyclitols and bis-indoles, from actinomycetes. Biosci Biotechnol Biochem 2017; 81:871-881. [DOI: 10.1080/09168451.2017.1281726] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Actinomycetes are a major source of bioactive natural products with important pharmaceutical properties. Understanding the natural enzymatic assembly of complex small molecules is important for rational metabolic pathway design to produce “artificial” natural products in bacterial cells. This review will highlight current research on the biosynthetic mechanisms of two classes of nitrogen-containing natural products, C7N aminocyclitols and bis-indoles. Validamycin A is a member of C7N aminocyclitol natural products from Streptomyces hygroscopicus. Here, two important biosynthetic steps, pseudoglycosyltranferase-catalyzed C–N bond formation, and C7-sugar phosphate cyclase-catalyzed divergent carbasugar formation, will be reviewed. In addition, the bis-indolic natural products indolocarbazole, staurosporine from Streptomyces sp. TP-A0274, and rearranged bis-indole violacein from Chromobacterium violaceum are reviewed including the oxidative course of the assembly pathway for the bis-indolic scaffold. The identified biosynthesis mechanisms will be useful to generating new biocatalytic tools and bioactive compounds.
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Affiliation(s)
- Shumpei Asamizu
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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26
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Hughes RR, Shaaban KA, Zhang J, Cao H, Phillips GN, Thorson JS. OleD Loki as a Catalyst for Tertiary Amine and Hydroxamate Glycosylation. Chembiochem 2017; 18:363-367. [PMID: 28067448 PMCID: PMC5355705 DOI: 10.1002/cbic.201600676] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Indexed: 12/23/2022]
Abstract
We describe the ability of an engineered glycosyltransferase (OleD Loki) to catalyze the N-glycosylation of tertiary-amine-containing drugs and trichostatin hydroxamate glycosyl ester formation. As such, this study highlights the first bacterial model catalyst for tertiary-amine N-glycosylation and further expands the substrate scope and synthetic potential of engineered OleDs. In addition, this work could open the door to the discovery of similar capabilities among other permissive bacterial glycosyltransferases.
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Affiliation(s)
- Ryan R Hughes
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Khaled A Shaaban
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Jianjun Zhang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
| | - Hongnan Cao
- Department of Chemistry, Rice University, P. O. Box 1892, MS 60, Houston, TX, 77251, USA
| | - George N Phillips
- Department of Chemistry, Rice University, P. O. Box 1892, MS 60, Houston, TX, 77251, USA
| | - Jon S Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY, 40536, USA
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27
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Forget SM, Na J, McCormick NE, Jakeman DL. Biosynthetic 4,6-dehydratase gene deletion: isolation of a glucosylated jadomycin natural product provides insight into the substrate specificity of glycosyltransferase JadS. Org Biomol Chem 2017; 15:2725-2729. [DOI: 10.1039/c7ob00259a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 2,6-dideoxy-l-sugar glycosyltransferase is able to transfer d-glucose in a deletion mutant strain.
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Affiliation(s)
- S. M. Forget
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
| | - Jungwook Na
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
| | | | - D. L. Jakeman
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
- College of Pharmacy
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28
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Salcedo RG, Olano C, Fernández R, Braña AF, Méndez C, de la Calle F, Salas JA. Elucidation of the glycosylation steps during biosynthesis of antitumor macrolides PM100117 and PM100118 and engineering for novel derivatives. Microb Cell Fact 2016; 15:187. [PMID: 27829451 PMCID: PMC5103430 DOI: 10.1186/s12934-016-0591-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 11/03/2016] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Antitumor compounds PM100117 and PM100118 are glycosylated polyketides derived from the marine actinobacteria Streptomyces caniferus GUA-06-05-006A. The organization and characterization of the PM100117/18 biosynthesis gene cluster has been recently reported. RESULTS Based on the preceding information and new genetic engineering data, we have outlined the pathway by which PM100117/18 are glycosylated. Furthermore, these genetic engineering experiments have allowed the generation of novel PM100117/18 analogues. Deletion of putative glycosyltranferase genes and additional genes presumably involved in late biosynthesis steps of the three 2,6-dideoxysugars appended to the PM100117/18 polyketide skeleton, resulted in the generation of a series of intermediates and novel derivatives. CONCLUSIONS Isolation and identification of the novel compounds constitutes an important contribution to our knowledge on PM100117/18 glycosylation, and set the basis for further characterization of specific enzymatic reactions, additional genetic engineering and combinatorial biosynthesis approaches.
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Affiliation(s)
- Raúl García Salcedo
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Asturias, 33006, Oviedo, Spain
| | - Carlos Olano
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Asturias, 33006, Oviedo, Spain
| | - Rogelio Fernández
- Drug Discovery Area, PharmaMar S.A., Avda. de los Reyes, Colmenar Viejo, 128770, Madrid, Spain
| | - Alfredo F Braña
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Asturias, 33006, Oviedo, Spain
| | - Carmen Méndez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Asturias, 33006, Oviedo, Spain
| | - Fernando de la Calle
- Drug Discovery Area, PharmaMar S.A., Avda. de los Reyes, Colmenar Viejo, 128770, Madrid, Spain
| | - José A Salas
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Asturias, 33006, Oviedo, Spain.
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29
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Shaaban KA, Elshahawi SI, Wang X, Horn J, Kharel MK, Leggas M, Thorson JS. Cytotoxic Indolocarbazoles from Actinomadura melliaura ATCC 39691. JOURNAL OF NATURAL PRODUCTS 2015; 78:1723-9. [PMID: 26091285 PMCID: PMC4515175 DOI: 10.1021/acs.jnatprod.5b00429] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Actinomadura melliaura ATCC 39691, a strain isolated from a soil sample collected in Bristol Cove, California, is a known producer of the disaccharide-substituted AT2433 indolocarbazoles (6-9). Reinvestigation of this strain using new media conditions led to >40-fold improvement in the production of previously reported AT2433 metabolites and the isolation and structure elucidation of the four new analogues, AT2433-A3, A4, A5, and B3 (1-4). The availability of this broader set of compounds enabled a subsequent small antibacterial/fungal/cancer SAR study that revealed disaccharyl substitution, N-6 methylation, and C-11 chlorination as key modulators of bioactivity. The slightly improved anticancer potency of the newly reported N-6-desmethyl 1 (compared to 6) contrasts extensive SAR of monoglycosylated rebeccamycin-type topoisomerase I inhibitors where N-6 alkylation has contributed to improved potency and ADME. Complete 2D NMR assignments for the known metabolite BMY-41219 (5) and (13)C NMR spectroscopic data for the known analogue AT2433-B1 (7) are also provided for the first time.
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Affiliation(s)
- Khaled A. Shaaban
- Center for Pharmaceutical Research and Innovation, University of Kentucky, Lexington, Kentucky 40536, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
| | - Sherif I. Elshahawi
- Center for Pharmaceutical Research and Innovation, University of Kentucky, Lexington, Kentucky 40536, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
| | - Xiachang Wang
- Center for Pharmaceutical Research and Innovation, University of Kentucky, Lexington, Kentucky 40536, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
| | - Jamie Horn
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
| | - Madan K. Kharel
- School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, Maryland 21853, United States
| | - Markos Leggas
- Center for Pharmaceutical Research and Innovation, University of Kentucky, Lexington, Kentucky 40536, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
| | - Jon S. Thorson
- Center for Pharmaceutical Research and Innovation, University of Kentucky, Lexington, Kentucky 40536, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
- Corresponding Author:
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30
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Chang FY, Ternei MA, Calle PY, Brady SF. Targeted metagenomics: finding rare tryptophan dimer natural products in the environment. J Am Chem Soc 2015; 137:6044-52. [PMID: 25872030 PMCID: PMC4839266 DOI: 10.1021/jacs.5b01968] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Natural product discovery from environmental genomes (metagenomics) has largely been limited to the screening of existing environmental DNA (eDNA) libraries. Here, we have coupled a chemical-biogeographic survey of chromopyrrolic acid synthase (CPAS) gene diversity with targeted eDNA library production to more efficiently access rare tryptophan dimer (TD) biosynthetic gene clusters. A combination of traditional and synthetic biology-based heterologous expression efforts using eDNA-derived gene clusters led to the production of hydroxysporine (1) and reductasporine (2), two bioactive TDs. As suggested by our phylogenetic analysis of CPAS genes, identified in our survey of crude eDNA extracts, reductasporine (2) contains an unprecedented TD core structure: a pyrrolinium indolocarbazole core that is likely key to its unusual bioactivity profile. This work demonstrates the potential for the discovery of structurally rare and biologically interesting natural products using targeted metagenomics, where environmental samples are prescreened to identify the most phylogenetically unique gene sequences and molecules associated with these genes are accessed through targeted metagenomic library construction and heterologous expression.
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Affiliation(s)
- Fang-Yuan Chang
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Melinda A. Ternei
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Paula Y. Calle
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Sean F. Brady
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
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31
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Spolitak T, Ballou DP. Evidence for catalytic intermediates involved in generating the chromopyrrolic acid scaffold of rebeccamycin by RebO and RebD. Arch Biochem Biophys 2015; 573:111-9. [DOI: 10.1016/j.abb.2015.03.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 03/23/2015] [Accepted: 03/24/2015] [Indexed: 10/23/2022]
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32
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Tam HK, Härle J, Gerhardt S, Rohr J, Wang G, Thorson JS, Bigot A, Lutterbeck M, Seiche W, Breit B, Bechthold A, Einsle O. Structural characterization of O- and C-glycosylating variants of the landomycin glycosyltransferase LanGT2. Angew Chem Int Ed Engl 2015; 54:2811-5. [PMID: 25581707 PMCID: PMC4376353 DOI: 10.1002/anie.201409792] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Indexed: 12/15/2022]
Abstract
The structures of the O-glycosyltransferase LanGT2 and the engineered, C-C bond-forming variant LanGT2S8Ac show how the replacement of a single loop can change the functionality of the enzyme. Crystal structures of the enzymes in complex with a nonhydrolyzable nucleotide-sugar analogue revealed that there is a conformational transition to create the binding sites for the aglycon substrate. This induced-fit transition was explored by molecular docking experiments with various aglycon substrates.
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Affiliation(s)
- Heng Keat Tam
- Institut für Biochemie, Albert-Ludwigs-Universität
Freiburg Albertstrasse 21, 79104 Freiburg (Germany)
| | - Johannes Härle
- Institut für Pharmazeutische Wissenschaften
Albert-Ludwigs-Universität Freiburg, 79104 Freiburg (Germany)
| | - Stefan Gerhardt
- Institut für Biochemie, Albert-Ludwigs-Universität
Freiburg Albertstrasse 21, 79104 Freiburg (Germany)
| | - Jürgen Rohr
- Center for Pharmaceutical Research and Innovation University of
Kentucky College of Pharmacy, Lexington, KY (USA)
| | - Guojun Wang
- Center for Pharmaceutical Research and Innovation University of
Kentucky College of Pharmacy, Lexington, KY (USA)
| | - Jon S. Thorson
- Center for Pharmaceutical Research and Innovation University of
Kentucky College of Pharmacy, Lexington, KY (USA)
| | - Aurélien Bigot
- Institut für Organische Chemie,
Albert-Ludwigs-Universität Freiburg Albertstrasse 21, 79104 Freiburg
(Germany)
| | - Monika Lutterbeck
- Institut für Organische Chemie,
Albert-Ludwigs-Universität Freiburg Albertstrasse 21, 79104 Freiburg
(Germany)
| | - Wolfgang Seiche
- Institut für Organische Chemie,
Albert-Ludwigs-Universität Freiburg Albertstrasse 21, 79104 Freiburg
(Germany)
| | - Bernhard Breit
- Institut für Organische Chemie,
Albert-Ludwigs-Universität Freiburg Albertstrasse 21, 79104 Freiburg
(Germany)
| | - Andreas Bechthold
- Institut für Pharmazeutische Wissenschaften
Albert-Ludwigs-Universität Freiburg, 79104 Freiburg (Germany)
| | - Oliver Einsle
- Institut für Biochemie, Albert-Ludwigs-Universität
Freiburg Albertstrasse 21, 79104 Freiburg (Germany). BIOSS Centre for
Biological Signalling Studies Schänzlestrasse 18, 79104 Freiburg
(Germany)
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33
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Tam HK, Härle J, Gerhardt S, Rohr J, Wang G, Thorson JS, Bigot A, Lutterbeck M, Seiche W, Breit B, Bechthold A, Einsle O. Strukturelle Charakterisierung von O- und C-glycosylierenden Varianten der Landomycin-Glycosyltransferase LanGT2. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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34
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Zhang W, Ma L, Li S, Liu Z, Chen Y, Zhang H, Zhang G, Zhang Q, Tian X, Yuan C, Zhang S, Zhang W, Zhang C. Indimicins A-E, Bisindole Alkaloids from the Deep-Sea-Derived Streptomyces sp. SCSIO 03032. JOURNAL OF NATURAL PRODUCTS 2014; 77:1887-1892. [PMID: 25069084 DOI: 10.1021/np500362p] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Five new bisindole alkaloids, indimicins A-E (1-5), bearing a unique 1',3'-dimethyl-2'-hydroindole moiety, were isolated from the marine-derived Streptomyces sp. SCSIO 03032, along with two new compounds, lynamicins F and G (6 and 7). Their planar structures were elucidated by detailed interpretation of their MS and NMR spectroscopic data, and the absolute configurations were determined by X-ray crystallographic analysis (for 1), comparison of CD spectra (for 2-4), and quantum chemical calculations (for 5). Indimicin B (2) exhibited moderate cytotoxic activity toward the MCF-7 cell line.
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Affiliation(s)
- Wenjun Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Liang Ma
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Sumei Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Zhong Liu
- Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University , 601 West Huangpu Road, Guangzhou 510632, People's Republic of China
| | - Yuchan Chen
- Guangdong Institute of Microbiology , 100 Central Xianlie Road, Guangzhou 510070, People's Republic of China
| | - Haibo Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Guangtao Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Qingbo Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Xinpeng Tian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Chengshan Yuan
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Si Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
| | - Weimin Zhang
- Guangdong Institute of Microbiology , 100 Central Xianlie Road, Guangzhou 510070, People's Republic of China
| | - Changsheng Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, Collaborative Innovation Center of Deep Sea Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, People's Republic of China
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35
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Biosynthesis of Indolocarbazole and Goadsporin, Two Different Heterocyclic Antibiotics Produced by Actinomycetes. Biosci Biotechnol Biochem 2014; 73:2149-55. [DOI: 10.1271/bbb.90263] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Chang FY, Brady SF. Characterization of an environmental DNA-derived gene cluster that encodes the bisindolylmaleimide methylarcyriarubin. Chembiochem 2014; 15:815-21. [PMID: 24648189 DOI: 10.1002/cbic.201300756] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Indexed: 01/11/2023]
Abstract
Bisindolylmaleimides represent a naturally occurring class of metabolites that are of interest because of their protein kinase inhibition activity. From a metagenomic library constructed with soil DNA, we identified the four gene mar cluster, a bisindolylmaleimide gene cluster that encodes for methylarcyriarubin (1) production. Heterologous expression of the mar gene cluster in E. coli revealed that the Rieske dioxygenase MarC facilitates the oxidative decarboxylation of a chromopyrrolic acid (CPA) intermediate to yield the bisindolylmaleimide core. The characterization of the mar cluster defines a new role for CPA in the biosynthesis of structurally diverse bacterial tryptophan dimers.
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Affiliation(s)
- Fang-Yuan Chang
- Laboratory of Genetically Encoded Small Molecules, Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, NY 10065 (USA)
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37
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Chang FY, Ternei MA, Calle PY, Brady SF. Discovery and synthetic refactoring of tryptophan dimer gene clusters from the environment. J Am Chem Soc 2013; 135:17906-12. [PMID: 24171465 DOI: 10.1021/ja408683p] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Here we investigate bacterial tryptophan dimer (TD) biosynthesis by probing environmental DNA (eDNA) libraries for chromopyrrolic acid (CPA) synthase genes. Functional and bioinformatics analyses of TD clusters indicate that CPA synthase gene sequences diverge in concert with the functional output of their respective clusters, making this gene a powerful tool for guiding the discovery of novel TDs from the environment. Twelve unprecedented TD biosynthetic gene clusters that can be arranged into five groups (A-E) based on their ability to generate distinct TD core substructures were recovered from eDNA libraries. Four of these groups contain clusters from both cultured and culture independent studies, while the remaining group consists entirely of eDNA-derived clusters. The complete synthetic refactoring of a representative gene cluster from the latter eDNA specific group led to the characterization of the erdasporines, cytotoxins with a novel carboxy-indolocarbazole TD substructure. Analysis of CPA synthase genes in crude eDNA suggests the presence of additional TD gene clusters in soil environments.
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Affiliation(s)
- Fang-Yuan Chang
- Laboratory of Genetically Encoded Small Molecules, Howard Hughes Medical Institute, The Rockefeller University , 1230 York Avenue, New York, New York 10065, United States
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Tracking down biotransformation to the genetic level: identification of a highly flexible glycosyltransferase from Saccharothrix espanaensis. Appl Environ Microbiol 2013; 79:5224-32. [PMID: 23793643 DOI: 10.1128/aem.01652-13] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Saccharothrix espanaensis is a member of the order Actinomycetales. The genome of the strain has been sequenced recently, revealing 106 glycosyltransferase genes. In this paper, we report the detection of a glycosyltransferase from Saccharothrix espanaensis which is able to rhamnosylate different phenolic compounds targeting different positions of the molecules. The gene encoding the flexible glycosyltransferase is not located close to a natural product biosynthetic gene cluster. Therefore, the native function of this enzyme might be not the biosynthesis of a secondary metabolite but the glycosylation of internal and external natural products as part of a defense mechanism.
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Discovery of indolotryptoline antiproliferative agents by homology-guided metagenomic screening. Proc Natl Acad Sci U S A 2013; 110:2478-83. [PMID: 23302687 DOI: 10.1073/pnas.1218073110] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Natural product discovery by random screening of broth extracts derived from cultured bacteria often suffers from high rates of redundant isolation, making it ever more challenging to identify novel biologically interesting natural products. Here we show that homology-based screening of soil metagenomes can be used to specifically target the discovery of new members of traditionally rare, biomedically relevant natural product families. Phylogenetic analysis of oxy-tryptophan dimerization gene homologs found within a large soil DNA library enabled the identification and recovery of a unique tryptophan dimerization biosynthetic gene cluster, which we have termed the bor cluster. When heterologously expressed in Streptomyces albus, this cluster produced an indolotryptoline antiproliferative agent with CaMKIIδ kinase inhibitory activity (borregomycin A), along with several dihydroxyindolocarbazole anticancer/antibiotics (borregomycins B-D). Similar homology-based screening of large environmental DNA libraries is likely to permit the directed discovery of new members within other previously rare families of bioactive natural products.
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Zhang W, Liu Z, Li S, Yang T, Zhang Q, Ma L, Tian X, Zhang H, Huang C, Zhang S, Ju J, Shen Y, Zhang C. Spiroindimicins A–D: New Bisindole Alkaloids from a Deep-Sea-Derived Actinomycete. Org Lett 2012. [DOI: 10.1021/ol301343n pmid: 22694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenjun Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Zhong Liu
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Sumei Li
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Tingting Yang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Qingbo Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Liang Ma
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Xinpeng Tian
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Haibo Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Caiguo Huang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Si Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Jianhua Ju
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Yuemao Shen
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
| | - Changsheng Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China, Guangzhoujinan Biomedicine Research and Development Center, Guangdong Key Laboratory of Bioengineering Medicine, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China, Department of Biochemistry and Molecular Biology, The
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Zhang W, Liu Z, Li S, Yang T, Zhang Q, Ma L, Tian X, Zhang H, Huang C, Zhang S, Ju J, Shen Y, Zhang C. Spiroindimicins A-D: new bisindole alkaloids from a deep-sea-derived actinomycete. Org Lett 2012; 14:3364-7. [PMID: 22694269 DOI: 10.1021/ol301343n] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A PCR-based screening approach led to the identification of a deep-sea-derived Streptomyces sp. SCSIO 03032 capable of producing new bisindole alkaloids spiroindimicins A-D (1-4). Structural elucidation of these compounds revealed the presence of unusual [5,6] or [5,5] spiro-ring containing skeletons. Spiroindimicins B-D (2-4) with a [5,5] spiro-ring exhibited moderate cytotoxicities against several cancer cell lines.
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Affiliation(s)
- Wenjun Zhang
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
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Schmidt AW, Reddy KR, Knölker HJ. Occurrence, Biogenesis, and Synthesis of Biologically Active Carbazole Alkaloids. Chem Rev 2012; 112:3193-328. [PMID: 22480243 DOI: 10.1021/cr200447s] [Citation(s) in RCA: 899] [Impact Index Per Article: 74.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Arndt W. Schmidt
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
| | - Kethiri R. Reddy
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
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Engineered biosynthesis of glycosylated derivatives of narbomycin and evaluation of their antibacterial activities. Appl Microbiol Biotechnol 2011; 93:1147-56. [DOI: 10.1007/s00253-011-3592-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 08/24/2011] [Accepted: 09/17/2011] [Indexed: 10/17/2022]
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Asamizu S, Yang J, Almabruk KH, Mahmud T. Pseudoglycosyltransferase catalyzes nonglycosidic C-N coupling in validamycin a biosynthesis. J Am Chem Soc 2011; 133:12124-35. [PMID: 21766819 DOI: 10.1021/ja203574u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Glycosyltransferases are ubiquitous in nature. They catalyze a glycosidic bond formation between sugar donors and sugar or nonsugar acceptors to produce oligo/polysaccharides, glycoproteins, glycolipids, glycosylated natural products, and other sugar-containing entities. However, a trehalose 6-phosphate synthase-like protein has been found to catalyze an unprecedented nonglycosidic C-N bond formation in the biosynthesis of the aminocyclitol antibiotic validamycin A. This dedicated 'pseudoglycosyltransferase' catalyzes a condensation between GDP-valienol and validamine 7-phosphate to give validoxylamine A 7'-phosphate with net retention of the 'anomeric' configuration of the donor cyclitol in the product. The enzyme operates in sequence with a phosphatase, which dephosphorylates validoxylamine A 7'-phosphate to validoxylamine A.
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Affiliation(s)
- Shumpei Asamizu
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon 97331-3507, USA
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Gantt RW, Peltier-Pain P, Thorson JS. Enzymatic methods for glyco(diversification/randomization) of drugs and small molecules. Nat Prod Rep 2011; 28:1811-53. [DOI: 10.1039/c1np00045d] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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46
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Olano C, Méndez C, Salas JA. Molecular insights on the biosynthesis of antitumour compounds by actinomycetes. Microb Biotechnol 2010; 4:144-64. [PMID: 21342461 PMCID: PMC3818856 DOI: 10.1111/j.1751-7915.2010.00231.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Natural products are traditionally the main source of drug leads. In particular, many antitumour compounds are either natural products or derived from them. However, the search for novel antitumour drugs active against untreatable tumours, with fewer side-effects or with enhanced therapeutic efficiency, is a priority goal in cancer chemotherapy. Microorganisms, particularly actinomycetes, are prolific producers of bioactive compounds, including antitumour drugs, produced as secondary metabolites. Structural genes involved in the biosynthesis of such compounds are normally clustered together with resistance and regulatory genes, which facilitates the isolation of the gene cluster. The characterization of these clusters has represented, during the last 25 years, a great source of genes for the generation of novel derivatives by using combinatorial biosynthesis approaches: gene inactivation, gene expression, heterologous expression of the clusters or mutasynthesis. In addition, these techniques have been also applied to improve the production yields of natural and novel antitumour compounds. In this review we focus on some representative antitumour compounds produced by actinomycetes covering the genetic approaches used to isolate and validate their biosynthesis gene clusters, which finally led to generating novel derivatives and to improving the production yields.
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Affiliation(s)
- Carlos Olano
- Departamento de Biología Funcional and Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain
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Engineered biosynthesis of gilvocarcin analogues with altered deoxyhexopyranose moieties. Appl Environ Microbiol 2010; 77:435-41. [PMID: 21075894 DOI: 10.1128/aem.01774-10] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A combinatorial biosynthetic approach was used to interrogate the donor substrate flexibility of GilGT, the glycosyltransferase involved in C-glycosylation during gilvocarcin biosynthesis. Complementation of gilvocarcin mutant Streptomyces lividans TK24 (cosG9B3-U(-)), in which the biosynthesis of the natural sugar donor substrate was compromised, with various deoxysugar plasmids led to the generation of six gilvocarcin analogues with altered saccharide moieties. Characterization of the isolated gilvocarcin derivatives revealed five new compounds, including 4-β-C-D-olivosyl-gilvocarcin V (D-olivosyl GV), 4-β-C-D-olivosyl-gilvocarcin M (D-olivosyl GM), 4-β-C-D-olivosyl-gilvocarcin E (D-olivosyl GE), 4-α-C-L-rhamnosyl-gilvocarcin M (polycarcin M), 4-α-C-L-rhamnosyl-gilvocarcin E (polycarcin E), and the recently characterized 4-α-C-L-rhamnosyl-gilvocarcin V (polycarcin V). Preliminary anticancer assays showed that D-olivosyl-gilvocarcin and polycarcin V exhibit antitumor activities comparable to that of their parent drug congener, gilvocarcin V, against human lung cancer (H460), murine lung cancer (LL/2), and breast cancer (MCF-7) cell lines. Our findings demonstrate GilGT to be a moderately flexible C-glycosyltransferase able to transfer both D- and L-hexopyranose moieties to the unique angucyclinone-derived benzo[D]naphtho[1,2b]pyran-6-one backbone of the gilvocarcins.
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Walsh CT, Fischbach MA. Natural products version 2.0: connecting genes to molecules. J Am Chem Soc 2010; 132:2469-93. [PMID: 20121095 DOI: 10.1021/ja909118a] [Citation(s) in RCA: 318] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural products have played a prominent role in the history of organic chemistry, and they continue to be important as drugs, biological probes, and targets of study for synthetic and analytical chemists. In this Perspective, we explore how connecting Nature's small molecules to the genes that encode them has sparked a renaissance in natural product research, focusing primarily on the biosynthesis of polyketides and non-ribosomal peptides. We survey monomer biogenesis, coupling chemistries from templated and non-templated pathways, and the broad set of tailoring reactions and hybrid pathways that give rise to the diverse scaffolds and functionalization patterns of natural products. We conclude by considering two questions: What would it take to find all natural product scaffolds? What kind of scientists will be studying natural products in the future?
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Affiliation(s)
- Christopher T Walsh
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.
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Roberts AA, Ryan KS, Moore BS, Gulder TA. Total (bio)synthesis: strategies of nature and of chemists. Top Curr Chem (Cham) 2010; 297:149-203. [PMID: 21495259 PMCID: PMC3109256 DOI: 10.1007/128_2010_79] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The biosynthetic pathways to a number of natural products have been reconstituted in vitro using purified enzymes. Many of these molecules have also been synthesized by organic chemists. Here we compare the strategies used by nature and by chemists to reveal the underlying logic and success of each total synthetic approach for some exemplary molecules with diverse biosynthetic origins.
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Chemoenzymatic and Bioenzymatic Synthesis of Carbohydrate Containing Natural Products. NATURAL PRODUCTS VIA ENZYMATIC REACTIONS 2010; 297:105-48. [DOI: 10.1007/128_2010_78] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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