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Xu ZF, Bo ST, Wang MJ, Shi J, Jiao RH, Sun Y, Xu Q, Tan RX, Ge HM. Discovery and biosynthesis of bosamycins from Streptomyces sp. 120454. Chem Sci 2020; 11:9237-9245. [PMID: 34094195 PMCID: PMC8161544 DOI: 10.1039/d0sc03469j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Nonribosomal peptides (NRPs) that are synthesized by modular megaenzymes known as nonribosomal peptide synthetases (NRPSs) are a rich source for drug discovery. By targeting an unusual NRPS architecture, we discovered an unusual biosynthetic gene cluster (bsm) from Streptomyces sp. 120454 and identified that it was responsible for the biosynthesis of a series of novel linear peptides, bosamycins. The bsm gene cluster contains a unique monomodular NRPS, BsmF, that contains a cytochrome P450 domain at the N-terminal. BsmF (P450 + A + T) can selectively activate tyrosine with its adenylation (A) domain, load it onto the thiolation (T) domain, and then hydroxylate tyrosine to form 5-OH tyrosine with the P450 domain. We demonstrated a NRPS assembly line for the formation of bosamycins by genetic and biochemical analysis and heterologous expression. Our work reveals a genome mining strategy targeting a unique NRPS domain for the discovery of novel NRPs.
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Affiliation(s)
- Zi Fei Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Sheng Tao Bo
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Mei Jing Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Jing Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Rui Hua Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China .,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University Nanjing 210023 P. R. China
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China
| | - Ren Xiang Tan
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China .,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing 210023 P. R. China
| | - Hui Ming Ge
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University 210023 P. R. China .,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University Nanjing 210023 P. R. China
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Falzone M, Crespo E, Jones K, Khan G, Korn VL, Patel A, Patel M, Patel K, Perkins C, Siddiqui S, Stenger D, Yu E, Gelber M, Scheffler R, Nayda V, Ravin A, Komal R, Rudolf JD, Shen B, Gullo V, Demain AL. Nutritional control of antibiotic production by Streptomyces platensis MA7327: importance of l-aspartic acid. J Antibiot (Tokyo) 2017; 70:828-831. [PMID: 28465627 DOI: 10.1038/ja.2017.49] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/02/2017] [Accepted: 03/14/2017] [Indexed: 01/21/2023]
Abstract
Streptomyces platensis MA7327 is a bacterium producing interesting antibiotics, which act by the novel mechanism of inhibiting fatty acid biosynthesis. The antibiotics produced by this actinomycete are platensimycin and platencin plus some minor related antibiotics. Platensimycin and platencin have activity against antibiotic-resistant bacteria such as methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus; they also lack toxicity in animal models. Platensimycin also has activity against diabetes in a mouse model. We have been interested in studying the effects of primary metabolites on production of these antibiotics in our chemically defined production medium. In the present work, we tested 32 primary metabolites for their effect. They included 20 amino acids, 7 vitamins and 5 nucleic acid derivatives. Of these, only l-aspartic acid showed stimulation of antibiotic production. We conclude that the stimulatory effect of aspartic acid is due to its role as a precursor involved in the biosynthesis of aspartate-4-semialdehyde, which is the starting point for the biosynthesis of the 3-amino-2,4-dihydroxy benzoic acid portion of the platensimycin molecule.
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Affiliation(s)
- Maria Falzone
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Emmanuel Crespo
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Klarissa Jones
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Gulaba Khan
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Victoria L Korn
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Amreen Patel
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Mira Patel
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Krishnaben Patel
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Carrie Perkins
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Sana Siddiqui
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Drew Stenger
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Eileen Yu
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Michael Gelber
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Robert Scheffler
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Vasyl Nayda
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Ariela Ravin
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Ronica Komal
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Jeffrey D Rudolf
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Vincent Gullo
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
| | - Arnold L Demain
- Research Institute of Scientists Emeriti (RISE), Charles A. Dana Research Institute, Drew University, Madison, NJ, USA
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Platensimycin and platencin: Inspirations for chemistry, biology, enzymology, and medicine. Biochem Pharmacol 2016; 133:139-151. [PMID: 27865713 DOI: 10.1016/j.bcp.2016.11.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/14/2016] [Indexed: 12/15/2022]
Abstract
Natural products have served as the main source of drugs and drug leads, and natural products produced by microorganisms are one of the most prevalent sources of clinical antibiotics. Their unparalleled structural and chemical diversities provide a basis to investigate fundamental biological processes while providing access to a tremendous amount of chemical space. There is a pressing need for novel antibiotics with new mode of actions to combat the growing challenge of multidrug resistant pathogens. This review begins with the pioneering discovery and biological activities of platensimycin (PTM) and platencin (PTN), two antibacterial natural products isolated from Streptomyces platensis. The elucidation of their unique biochemical mode of action, structure-activity relationships, and pharmacokinetics is presented to highlight key aspects of their biological activities. It then presents an overview of how microbial genomics has impacted the field of PTM and PTN and revealed paradigm-shifting discoveries in terpenoid biosynthesis, fatty acid metabolism, and antibiotic and antidiabetic therapies. It concludes with a discussion covering the future perspectives of PTM and PTN in regard to natural products discovery, bacterial diterpenoid biosynthesis, and the pharmaceutical promise of PTM and PTN as antibiotics and for the treatment of metabolic disorders. PTM and PTN have inspired new discoveries in chemistry, biology, enzymology, and medicine and will undoubtedly continue to do so.
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Evaluation of fermentation conditions triggering increased antibacterial activity from a near-shore marine intertidal environment-associated Streptomyces species. Synth Syst Biotechnol 2016; 2:28-38. [PMID: 29062959 PMCID: PMC5625789 DOI: 10.1016/j.synbio.2016.09.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/21/2016] [Accepted: 09/21/2016] [Indexed: 12/26/2022] Open
Abstract
A near-shore marine intertidal environment-associated Streptomyces isolate (USC-633) from the Sunshine Coast Region of Queensland, Australia, cultivated under a range of chemically defined and complex media to determine optimal parameters resulting in the secretion of diverse array of secondary metabolites with antimicrobial properties against various antibiotic resistant bacteria. Following extraction, fractioning and re-testing of active metabolites resulted in persistent antibacterial activity against Escherichia coli (Migula) (ATCC 13706) and subsequent Nuclear Magnetic Resonance (NMR) analysis of the active fractions confirmed the induction of metabolites different than the ones in fractions which did not display activity against the same bacterial species. Overall findings again confirmed the value of One Strain–Many Compounds (OSMAC) approach that tests a wide range of growth parameters to trigger bioactive compound secretion increasing the likelihood of finding novel therapeutic agents. The isolate was found to be adaptable to both marine and terrestrial conditions corresponding to its original near-shore marine intertidal environment. Wide variations in its morphology, sporulation and diffusible pigment production were observed when different growth media were used.
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Shi J, Pan J, Liu L, Yang D, Lu S, Zhu X, Shen B, Duan Y, Huang Y. Titer improvement and pilot-scale production of platensimycin from Streptomyces platensis SB12026. J Ind Microbiol Biotechnol 2016; 43:1027-35. [PMID: 27126098 DOI: 10.1007/s10295-016-1769-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/28/2016] [Indexed: 11/25/2022]
Abstract
Platensimycin (PTM) and platencin (PTN), isolated from several strains of Streptomyces platensis are potent antibiotics against multi-drug resistant bacteria. PTM was also shown to have antidiabetic and antisteatotic activities in mouse models. Through a novel genome-mining method, we have recently identified six PTM and PTN dual-producing strains, and generated several mutants with improved production of PTM or PTN by inactivating the pathway-specific transcriptional repressor gene ptmR1. Among them, S. platensis SB12026 gave the highest titer of 310 mg/L for PTM. In this study, we now report titer improvement by medium and fermentation optimization and pilot-scale production and isolation of PTM from SB12026. The fermentation medium optimization was achieved by manipulating the carbon and nitrogen sources, as well as the inorganic salts. The highest titer of 1560 mg/L PTM was obtained in 15-L fermentors, using a formulated medium mainly containing soluble starch, soybean flour, morpholinepropanesulfonic acid sodium salt and CaCO3. In addition, a polyamide chromatographic step was applied to facilitate the purification and 45.14 g of PTM was successfully obtained from a 60 L scale fermentation. These results would speed up the future development of PTM as human medicine.
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Affiliation(s)
- Jun Shi
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Jian Pan
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Ling Liu
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Dong Yang
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Songquan Lu
- Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, 410013, Hunan, China
| | - Xiangcheng Zhu
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China.,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, 410013, Hunan, China
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA.,Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL, 33458, USA.,Natural Products Library Initiative, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China. .,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, 410013, Hunan, China. .,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, 410013, Hunan, China.
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China. .,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, 410013, Hunan, China.
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Restaino OF, Marseglia M, Diana P, Borzacchiello MG, Finamore R, Vitiello M, D’Agostino A, De Rosa M, Schiraldi C. Advances in the 16α-hydroxy transformation of hydrocortisone by Streptomyces roseochromogenes. Process Biochem 2016. [DOI: 10.1016/j.procbio.2015.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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