1
|
Wu Y, Wang M, Liu L. Advances on structure, bioactivity, and biosynthesis of amino acid-containing trans-AT polyketides. Eur J Med Chem 2023; 262:115890. [PMID: 37907023 DOI: 10.1016/j.ejmech.2023.115890] [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: 08/19/2023] [Revised: 10/01/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023]
Abstract
Trans-AT polyketides represent a class of natural compounds utilizing independent acyltransferase during their biosynthesis. They are well known for their diverse chemical structures and potent bioactivities. Trans-AT polyketides are synthesized through biosynthetic gene clusters predominantly composed of polyketide synthases (PKS), but often found in hybrid with non-ribosomal peptide synthetases (NRPS). This genetic hybridization results in the incorporation of amino acid residues into polyketide structures, significantly enhancing their structural diversity. Numerous amino acid-containing trans-AT polyketides have been identified, drawing significant attention to the mechanisms underlying amino acid incorporation and their impact on the biological activity of polyketides. Here, we discussed their origins, structures, biological activities, and the specific roles of amino acids in modulating both the bioactivity and biosynthesis of 38 trans-AT polyketides containing amino acids for the first time. This comprehensive analysis will serve as a crucial reference for the exploration of novel compounds and the improvement of structures and activities.
Collapse
Affiliation(s)
- Yunqiang Wu
- Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China; Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Min Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Liwei Liu
- Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China; Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China.
| |
Collapse
|
2
|
Bioinspired computational design of lankacidin derivatives for improvement in antitumor activity. Future Med Chem 2022; 14:1349-1360. [PMID: 36073363 DOI: 10.4155/fmc-2022-0134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: The 17-membered polyketide, lankacidin C, exhibits considerable antitumor activity as a microtubule stabilizer by binding to the paclitaxel binding site. Method: Esterification of the C-7/C-13 hydroxyl in lankacidin C was performed with acetyl, cinnamoyl and hydrocinnamoyl groups and their antitumor activity was assessed to improve the cytotoxicity of lankacidins through bioinspired computational design. Results: Compared with the cytotoxicity of parent lankacidin C against the HeLa cell line, 13-O-cinnamoyl-lankacidin C demonstrated sevenfold higher cytotoxicity. Furthermore, 7,13-di-O-cinnamoyl-lankacidin C exhibited considerable antitumor activity against three tested cell lines. Conclusion: C13-esterification by a cinnamoyl group dramatically improved antitumor activity, in agreement with computational predictions. This finding provides a potential substrate for next-generation lankacidin derivatives with significant antitumor activity.
Collapse
|
3
|
Muslimin R, Nishiura N, Teshima A, Do KM, Kodama T, Morita H, Lewis CW, Chan G, Ayoub AT, Arakawa K. Chemoenzymatic synthesis, computational investigation, and antitumor activity of monocyclic lankacidin derivatives. Bioorg Med Chem 2022; 53:116551. [PMID: 34883453 DOI: 10.1016/j.bmc.2021.116551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/18/2021] [Accepted: 11/29/2021] [Indexed: 12/01/2022]
Abstract
We investigated the importance of the δ-lactone ring (C1-C5) in lankacidin C using chemoenzymatic synthesis and computational prediction and assessing biological activity, including antitumor activity. Pyrroloquinoline quinone-dependent dehydrogenase (Orf23) in Streptomyces rochei was used in the chemoenzymatic synthesis of lankacyclinone C, a novel lankacidin C congener lacking the δ-lactone moiety. Orf23 could convert the monocyclic lankacidinol derivatives, lankacyclinol and 2-epi-lankacyclinol, to the C-24 keto compounds, lankacyclinone C and 2-epi-lankacyclinone C, respectively, elucidating the relaxed substrate specificity of Orf23. Computational prediction using molecular dynamics simulations and the molecular mechanics/generalized Born-surface area protocol indicated that binding energy values of all the monocyclic derivatives are very close to those of lankacidin C, which may reflect a comparable affinity to tubulin. Monocyclic lankacidin derivatives showed moderate antitumor activity when compared with bicyclic lankacidins, suggesting that the δ-lactone moiety is less important for antitumor activity in lankacidin-group antibiotics.
Collapse
Affiliation(s)
- Rukman Muslimin
- Unit of Biotechnology, Division of Biological and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
| | - Natsumi Nishiura
- Unit of Biotechnology, Division of Biological and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan; Hiroshima Research Center for Healthy Aging (HiHA), Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
| | - Aiko Teshima
- Unit of Biotechnology, Division of Biological and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan; Hiroshima Research Center for Healthy Aging (HiHA), Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
| | - Kiep Minh Do
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Takeshi Kodama
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Cody Wayne Lewis
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada; Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton, AB T6G 2J7, Canada
| | - Gordon Chan
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada; Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton, AB T6G 2J7, Canada
| | - Ahmed Taha Ayoub
- Medicinal Chemistry Department, Heliopolis University, 3 Cairo-Belbeis Desert Road, El-Nahda, Qism El-Salam, Cairo 11777, Egypt
| | - Kenji Arakawa
- Unit of Biotechnology, Division of Biological and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan; Hiroshima Research Center for Healthy Aging (HiHA), Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan.
| |
Collapse
|
4
|
Cai L, Seiple IB, Li Q. Modular Chemical Synthesis of Streptogramin and Lankacidin Antibiotics. Acc Chem Res 2021; 54:1891-1908. [PMID: 33792282 DOI: 10.1021/acs.accounts.0c00894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Continued, rapid development of antimicrobial resistance has become worldwide health crisis and a burden on the global economy. Decisive and comprehensive action is required to slow down the spread of antibiotic resistance, including increased investment in antibiotic discovery, sustainable policies that provide returns on investment for newly launched antibiotics, and public education to reduce the overusage of antibiotics, especially in livestock and agriculture. Without significant changes in the current antibiotic pipeline, we are in danger of entering a post-antibiotic era.In this Account, we summarize our recent efforts to develop next-generation streptogramin and lankacidin antibiotics that overcome bacterial resistance by means of modular chemical synthesis. First, we describe our highly modular, scalable route to four natural group A streptogramins antibiotics in 6-8 steps from seven simple chemical building blocks. We next describe the application of this route to the synthesis of a novel library of streptogramin antibiotics informed by in vitro and in vivo biological evaluation and high-resolution cryo-electron microscopy. One lead compound showed excellent inhibitory activity in vitro and in vivo against a longstanding streptogramin-resistance mechanism, virginiamycin acetyltransferase. Our results demonstrate that the combination of rational design and modular chemical synthesis can revitalize classes of antibiotics that are limited by naturally arising resistance mechanisms.Second, we recount our modular approaches toward lankacidin antibiotics. Lankacidins are a group of polyketide natural products with activity against several strains of Gram-positive bacteria but have not been deployed as therapeutics due to their chemical instability. We describe a route to several diastereomers of 2,18-seco-lankacidinol B in a linear sequence of ≤8 steps from simple building blocks, resulting in a revision of the C4 stereochemistry. We next detail our modular synthesis of several diastereoisomers of iso-lankacidinol that resulted in the structural reassignment of this natural product. These structural revisions raise interesting questions about the biosynthetic origin of lankacidins, all of which possessed uniform stereochemistry prior to these findings. Finally, we summarize the ability of several iso- and seco-lankacidins to inhibit the growth of bacteria and to inhibit translation in vitro, providing important insights into structure-function relationships for the class.
Collapse
Affiliation(s)
- Lingchao Cai
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, Jiangsu China
| | - Ian B. Seiple
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California, San Francisco, San Francisco, California 94158, United States
| | - Qi Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| |
Collapse
|
5
|
Cai L, Yao Y, Yeon SK, Seiple IB. Modular Approaches to Lankacidin Antibiotics. J Am Chem Soc 2020; 142:15116-15126. [PMID: 32786797 DOI: 10.1021/jacs.0c06648] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lankacidins are a class of polyketide natural products isolated from Streptomyces spp. that show promising antimicrobial activity. Owing to their complex molecular architectures and chemical instability, structural assignment and derivatization of lankacidins are challenging tasks. Herein we describe three fully synthetic approaches to lankacidins that enable access to new structural variability within the class. We use these routes to systematically generate stereochemical derivatives of both cyclic and acyclic lankacidins. Additionally, we access a new series of lankacidins bearing a methyl group at the C4 position, a modification intended to increase chemical stability. In the course of this work, we discovered that the reported structures for two natural products of the lankacidin class were incorrect, and we determine the correct structures of 2,18-seco-lankacidinol B and iso-lankacidinol. We also evaluate the ability of several iso- and seco-lankacidins to inhibit the growth of bacteria and to inhibit translation in vitro. This work grants insight into the rich chemical complexity of this class of antibiotics and provides an avenue for further structural derivatization.
Collapse
Affiliation(s)
- Lingchao Cai
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jinagsu Key Lab of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing, 210037 Jiangsu, China.,Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Yanmin Yao
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Seul Ki Yeon
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Ian B Seiple
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| |
Collapse
|
6
|
Yamauchi Y, Nindita Y, Hara K, Umeshiro A, Yabuuchi Y, Suzuki T, Kinashi H, Arakawa K. Quinoprotein dehydrogenase functions at the final oxidation step of lankacidin biosynthesis in Streptomyces rochei 7434AN4. J Biosci Bioeng 2018; 126:145-152. [DOI: 10.1016/j.jbiosc.2018.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/05/2018] [Accepted: 03/09/2018] [Indexed: 10/14/2022]
|
7
|
Tian EL, Gu BB, Han Y, Qu XD, Lin HW, Deng ZX, Hong K. Hainanmycin A, a cyclo-heptadeca macrolide bearing a cyclopentenone moiety from the mangrove-derived Streptomyces sp. 219807. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
8
|
Zheng K, Shen D, Hong R. Biomimetic Synthesis of Lankacidin Antibiotics. J Am Chem Soc 2017; 139:12939-12942. [DOI: 10.1021/jacs.7b08500] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kuan Zheng
- Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Defeng Shen
- Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Ran Hong
- Key
Laboratory of Synthetic Chemistry of Natural Substances, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
9
|
Abstract
Oxidative cyclizations are important transformations that occur widely during natural product biosynthesis. The transformations from acyclic precursors to cyclized products can afford morphed scaffolds, structural rigidity, and biological activities. Some of the most dramatic structural alterations in natural product biosynthesis occur through oxidative cyclization. In this Review, we examine the different strategies used by nature to create new intra(inter)molecular bonds via redox chemistry. This Review will cover both oxidation- and reduction-enabled cyclization mechanisms, with an emphasis on the former. Radical cyclizations catalyzed by P450, nonheme iron, α-KG-dependent oxygenases, and radical SAM enzymes are discussed to illustrate the use of molecular oxygen and S-adenosylmethionine to forge new bonds at unactivated sites via one-electron manifolds. Nonradical cyclizations catalyzed by flavin-dependent monooxygenases and NAD(P)H-dependent reductases are covered to show the use of two-electron manifolds in initiating cyclization reactions. The oxidative installations of epoxides and halogens into acyclic scaffolds to drive subsequent cyclizations are separately discussed as examples of "disappearing" reactive handles. Last, oxidative rearrangement of rings systems, including contractions and expansions, will be covered.
Collapse
Affiliation(s)
- Man-Cheng Tang
- Department of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Yi Zou
- Department of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Christopher T. Walsh
- Stanford University Chemistry, Engineering, and Medicine for Human Health (ChEM-H), Stanford University, 443 Via Ortega, Stanford, CA 94305
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, Department of Chemistry and Biochemistry, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA
| |
Collapse
|
10
|
Identification of pyripyropene A as a promising insecticidal compound in a microbial metabolite screening. J Antibiot (Tokyo) 2017; 70:272-276. [PMID: 28074053 DOI: 10.1038/ja.2016.155] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/04/2016] [Accepted: 11/25/2016] [Indexed: 11/08/2022]
Abstract
Approximately 300 microbial natural products in our library were screened for insecticidal activities against three species of agricultural pests, including aphids. Among the several compounds that showed insecticidal activities, pyripyropene A had high aphicidal activity in vivo. Furthermore, in advanced tests, pyripyropene A applications with foliar sprays and soil drenching controlled aphids on cabbage. On the basis of its unique and promising activities, we selected pyripyropene A as the active component of potential insecticides.
Collapse
|
11
|
Helfrich EJN, Piel J. Biosynthesis of polyketides by trans-AT polyketide synthases. Nat Prod Rep 2016; 33:231-316. [DOI: 10.1039/c5np00125k] [Citation(s) in RCA: 230] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review discusses the biosynthesis of natural products that are generated bytrans-AT polyketide synthases, a family of catalytically versatile enzymes that represents one of the major group of proteins involved in the production of bioactive polyketides.
Collapse
Affiliation(s)
- Eric J. N. Helfrich
- Institute of Microbiology
- Eidgenössische Technische Hochschule (ETH) Zurich
- 8093 Zurich
- Switzerland
| | - Jörn Piel
- Institute of Microbiology
- Eidgenössische Technische Hochschule (ETH) Zurich
- 8093 Zurich
- Switzerland
| |
Collapse
|
12
|
Arakawa K. Genetic and biochemical analysis of the antibiotic biosynthetic gene clusters on the Streptomyces linear plasmid. Biosci Biotechnol Biochem 2014; 78:183-9. [PMID: 25036669 DOI: 10.1080/09168451.2014.882761] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We extensively analyzed the giant linear plasmid pSLA2-L in Streptomyces rochei 7434AN4, a producer of two structurally unrelated polyketide antibiotics, lankacidin and lankamycin. It was found that amine oxidase LkcE oxidizes an acyclic amine to an imine, which is in turn converted to the 17-membered carbocyclic lankacidin. Heterologous expression and translational fusion experiments indicated the modular-iterative mixed polyketide biosynthesis of lankacidin. Concerning to lankamycin biosynthesis, starter unit biosynthesis and the post-PKS modification pathway were elucidated by feeding and gene inactivation experiments. It was shown that pSLA2-L contains many regulatory genes, which constitute the signaling molecule/receptor system for antibiotic production and morphological differentiation in this strain. Two signaling molecules, SRB1 and SRB2, that induce production of lankacidin and lankamycin were further isolated and their structures were elucidated. Each contains a 2,3-disubstituted butenolide skeleton, and the stereochemistry at C-1' position is crucial for inducing activity.
Collapse
Affiliation(s)
- Kenji Arakawa
- a Department of Molecular Biotechnology , Graduate School of Advanced Sciences of Matter, Hiroshima University , Higashi-Hiroshima , Japan
| |
Collapse
|
13
|
Sato S, Iwata F, Fukae T, Katayama M. Neomacquarimicin: a new macquarimicin analog from marine-derived actinomycete. J Antibiot (Tokyo) 2014; 67:479-82. [DOI: 10.1038/ja.2014.17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/16/2014] [Accepted: 02/02/2014] [Indexed: 11/09/2022]
|
14
|
Igarashi Y, Zhou T, Sato S, Matsumoto T, Yu L, Oku N. Akaeolide, a Carbocyclic Polyketide from Marine-Derived Streptomyces. Org Lett 2013; 15:5678-81. [DOI: 10.1021/ol402661r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuhiro Igarashi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Tao Zhou
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Seizo Sato
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Takashi Matsumoto
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Linkai Yu
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Naoya Oku
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan, Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo Innovation Center, 1-32-3 Nanakuni, Hachioji, Tokyo 192-0991, Japan, and Application Laboratories, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| |
Collapse
|
15
|
Musiol EM, Weber T. Discrete acyltransferases involved in polyketide biosynthesis. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20048a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Synthesis of macrocyclic precursors of lankacidins using Stille reactions of 4-(2-iodo-alkenyl)azetidinones and related compounds for ring closure. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.129] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
17
|
Schneemann I, Nagel K, Kajahn I, Labes A, Wiese J, Imhoff JF. Comprehensive investigation of marine Actinobacteria associated with the sponge Halichondria panicea. Appl Environ Microbiol 2010; 76:3702-14. [PMID: 20382810 PMCID: PMC2876447 DOI: 10.1128/aem.00780-10] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Accepted: 04/01/2010] [Indexed: 11/20/2022] Open
Abstract
Representatives of Actinobacteria were isolated from the marine sponge Halichondria panicea collected from the Baltic Sea (Germany). For the first time, a comprehensive investigation was performed with regard to phylogenetic strain identification, secondary metabolite profiling, bioactivity determination, and genetic exploration of biosynthetic genes, especially concerning the relationships of the abundance of biosynthesis gene fragments to the number and diversity of produced secondary metabolites. All strains were phylogenetically identified by 16S rRNA gene sequence analyses and were found to belong to the genera Actinoalloteichus, Micrococcus, Micromonospora, Nocardiopsis, and Streptomyces. Secondary metabolite profiles of 46 actinobacterial strains were evaluated, 122 different substances were identified, and 88 so far unidentified compounds were detected. The extracts from most of the cultures showed biological activities. In addition, the presence of biosynthesis genes encoding polyketide synthases (PKSs) and nonribosomal peptide synthetases (NRPSs) in 30 strains was established. It was shown that strains in which either PKS or NRPS genes were identified produced a significantly higher number of metabolites and exhibited a larger number of unidentified, possibly new metabolites than other strains. Therefore, the presence of PKS and NRPS genes is a good indicator for the selection of strains to isolate new natural products.
Collapse
Affiliation(s)
- Imke Schneemann
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Kerstin Nagel
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Inga Kajahn
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Antje Labes
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Jutta Wiese
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Johannes F. Imhoff
- Kieler Wirkstoff-Zentrum (KiWiZ) at the Leibniz Institute of Marine Sciences (IFM-GEOMAR), Am Kiel-Kanal 44, 24106 Kiel, Germany
| |
Collapse
|
18
|
Abstract
This review discusses the biosynthesis of natural products that are generated by trans-AT polyketide synthases, a family of catalytically versatile enzymes that have recently been recognized as one of the major group of proteins involved in the production of bioactive polyketides. 436 references are cited.
Collapse
Affiliation(s)
- Jörn Piel
- Kekulé Institute of Organic Chemistry and Biochemistry, University of Bonn, Bonn, Germany.
| |
Collapse
|
19
|
The structure of ribosome-lankacidin complex reveals ribosomal sites for synergistic antibiotics. Proc Natl Acad Sci U S A 2010; 107:1983-8. [PMID: 20080686 PMCID: PMC2804743 DOI: 10.1073/pnas.0914100107] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Crystallographic analysis revealed that the 17-member polyketide antibiotic lankacidin produced by Streptomyces rochei binds at the peptidyl transferase center of the eubacterial large ribosomal subunit. Biochemical and functional studies verified this finding and showed interference with peptide bond formation. Chemical probing indicated that the macrolide lankamycin, a second antibiotic produced by the same species, binds at a neighboring site, at the ribosome exit tunnel. These two antibiotics can bind to the ribosome simultaneously and display synergy in inhibiting bacterial growth. The binding site of lankacidin and lankamycin partially overlap with the binding site of another pair of synergistic antibiotics, the streptogramins. Thus, at least two pairs of structurally dissimilar compounds have been selected in the course of evolution to act synergistically by targeting neighboring sites in the ribosome. These results underscore the importance of the corresponding ribosomal sites for development of clinically relevant synergistic antibiotics and demonstrate the utility of structural analysis for providing new directions for drug discovery.
Collapse
|
20
|
Towards EPC-syntheses of the structural class of cochleamycins and macquarimicins. Part 1: EPC-synthesis of the hydrindene subunit of the cochleamycins. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.05.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Arakawa K, Sugino F, Kodama K, Ishii T, Kinashi H. Cyclization Mechanism for the Synthesis of Macrocyclic Antibiotic Lankacidin in Streptomyces rochei. ACTA ACUST UNITED AC 2005; 12:249-56. [PMID: 15734652 DOI: 10.1016/j.chembiol.2005.01.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2004] [Revised: 12/23/2004] [Accepted: 01/12/2005] [Indexed: 10/25/2022]
Abstract
The lankacidin biosynthetic gene cluster in Streptomyces rochei strain 7434AN4 was found to span 31 kb of the giant linear plasmid pSLA2-L and contain a polyketide synthase (PKS)/nonribosomal peptide synthetase (NRPS) hybrid gene (lkcA), type I PKS genes, and pyrroloquinoline quinone (PQQ) biosynthetic genes (lkcK-lkcO). Feeding of PQQ to a pqq mutant restored the lankacidin production, suggesting its crucial role in an oxidation process. However, formation of the 17-membered macrocyclic ring was not catalyzed by PQQ-dependent dehydrogenase (Orf23), but was by flavin-dependent amine oxidase (LkcE). Compound LC-KA05 isolated from an lkcE disruptant was an acyclic intermediate lacking the C2-C18 linkage. These results suggested a cyclization mechanism for the synthesis of the lankacidin macrocyclic skeleton.
Collapse
Affiliation(s)
- Kenji Arakawa
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8530, Japan
| | | | | | | | | |
Collapse
|
22
|
Mochizuki S, Hiratsu K, Suwa M, Ishii T, Sugino F, Yamada K, Kinashi H. The large linear plasmid pSLA2-L of Streptomyces rochei has an unusually condensed gene organization for secondary metabolism. Mol Microbiol 2003; 48:1501-10. [PMID: 12791134 DOI: 10.1046/j.1365-2958.2003.03523.x] [Citation(s) in RCA: 150] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The complete nucleotide sequence of the large linear plasmid pSLA2-L in Streptomyces rochei strain 7434AN4 has been determined. pSLA2-L was found to be 210 614 bp long with a GC content of 72.8% and carries 143 open reading frames. It is especially noteworthy that three-quarters of the pSLA2-L DNA is occupied by secondary metabolism-related genes, namely two type I polyketide synthase (PKS) gene clusters for lankacidin and lankamycin, a mithramycin synthase-like type II PKS gene cluster, a carotenoid biosynthetic gene cluster and many regulatory genes. In particular, the lankacidin PKS is unique, because it may be a mixture of modular- and iterative-type PKSs and carries a fusion protein of non-ribosomal peptide synthetase and PKS. It is also interesting that all the homologues of the afsA, arpA, adpA and strR genes in the A-factor regulatory cascade in Streptomyces griseus were found on pSLA2-L, and disruption of the afsA homologue caused non-production of both lankacidin and lankamycin. These results, together with the finding of three possible replication origins at 50-63 kb from the right end, suggest that the present form of pSLA2-L might have been generated by a series of insertions of the biosynthetic gene clusters into the left side of the original plasmid.
Collapse
Affiliation(s)
- Susumu Mochizuki
- Department of Molecular Biotechnology, Hiroshima University, Higashi-Hiroshima 739-8530, Japan
| | | | | | | | | | | | | |
Collapse
|
23
|
Brain CT, Chen A, Nelson A, Tanikkul N, Thomas EJ. An approach to the total synthesis of lankacidins: synthesis of the requisite building blocks. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(00)02260-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
24
|
Chen A, Nelson A, Tanikkul N, Thomas EJ. An approach to the total synthesis of lankacidins: synthesis of advanced macrocyclic precursors. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(00)02261-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
25
|
|
26
|
Williams DR, Cortez GS, Bogen SL, Rojas CM. Total Synthesis of Lankacyclinol Generous financial support for this research was provided by the National Institutes of Health (Award no.: GM41560). Additionally, a National Institutes of Health Minority Predoctoral Fellowship (Award no.: GM18547) to G.S.C. is gratefully acknowledged. We also wish to thank Dr. Tsuneaki Hida and Dr. Yoshio Kozai, Takeda Chemical Ltd. (Japan), for providing us with an authentic sample of lankacyclinol as well as copies of the original (1)H NMR spectrum. Angew Chem Int Ed Engl 2000; 39:4612-4615. [PMID: 11169688 DOI: 10.1002/1521-3773(20001215)39:24<4612::aid-anie4612>3.0.co;2-c] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David R. Williams
- Department of Chemistry Indiana University 800 East Kirkwood Avenue, Bloomington, IN 47405 (USA)
| | | | | | | |
Collapse
|
27
|
Thomas EJ, Williams AC. Development of a synthesis of lankacidins: stereoselective synthesis of the δ-lactone fragment. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950000351] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
28
|
Kinashi H, Shimaji-Murayama M, Hanafusa T. Integration of SCP1, a giant linear plasmid, into the Streptomyces coelicolor chromosome. Gene 1992; 115:35-41. [PMID: 1319377 DOI: 10.1016/0378-1119(92)90537-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
SCP1, coding for the methylenomycin biosynthetic genes in Streptomyces coelicolor, is a giant linear plasmid of 350 kb. Extensive physical characterization revealed that SCP1 has unusually long terminal inverted repeats (TIR) of about 80 kb on both ends and an insertion sequence, IS466, at the end of the right TIR (TIR-R), and the 5'-ends are attached to a terminal protein. In the NF strain S. coelicolor 2612, SCP1 is integrated into the chromosome at the 9-o'clock position. Analysis of the two junctions between the SCP1 DNA and the chromosomal DNA revealed that the left junction had an almost intact left terminus of SCP1, while the right junction was composed of IS466, completely deleting TIR-R. Based on these results, we presented a possible formation mechanism of the NF strain, which is characterized by integration of SCP1 into the chromosome via an interaction of the target site and the combined ends of the racket-frame structure of SCP1 followed by deletion of TIR-R. We also hypothesized that this type of integration of a giant linear plasmid might be involved in the origin and distribution of the chromosomal antibiotic biosynthetic gene clusters in microorganisms.
Collapse
Affiliation(s)
- H Kinashi
- Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Higashihiroshima, Japan
| | | | | |
Collapse
|
29
|
Kinashi H, Shimaji-Murayama M, Hanafusa T. Nucleotide sequence analysis of the unusually long terminal inverted repeats of a giant linear plasmid, SCP1. Plasmid 1991; 26:123-30. [PMID: 1749818 DOI: 10.1016/0147-619x(91)90052-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
SCP1 is a giant linear plasmid of 350 kb coding for the methylenomycin biosynthetic genes in Streptomyces coelicolor. The unusually long terminal inverted repeats present on both ends of SCP1 were analyzed on the nucleotide sequence level. Analysis of six clones containing the terminal 0.35-kb XbaI fragment revealed a slight heterogeneity in the nucleotide sequences of the SCP1 ends. Moreover, it was indicated that this fragment contained seven palindromic inverted repeats and a GT-rich region in the 5'-end strand. The size of the terminal inverted repeats was determined to be 81 kb by the cloning and sequencing of their end-points. An insertion sequence, IS466 was shown to be present just at the end of the right terminal inverted repeat.
Collapse
Affiliation(s)
- H Kinashi
- Mitsubishi Kasei Institute of Life Sciences, Tokyo, Japan
| | | | | |
Collapse
|
30
|
McFarland JW, Pirie DK, Retsema JA, English AR. Side chain modifications in lankacidin group antibiotics. Antimicrob Agents Chemother 1984; 25:226-33. [PMID: 6370129 PMCID: PMC185479 DOI: 10.1128/aac.25.2.226] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Novel N-acyl analogs of lankacidin may be prepared from 3-isocyanatolankone diformate [7,13-bis(formyloxy)-2-isocyanato-1,4,10,19-tetramethyl-16- oxabicyclo[13.2.2.]nonadeca-3,5,9,11-tetraen-17,18-dione]. Of seven such analogs evaluated in vitro only homolankacidin diformate showed significant activity. However, in a cell-free system two of the inactive analogs inhibited polypeptide synthesis as well as did lankacidin itself or erythromycin. Antibacterial activity, therefore, is a function of the ability of a congener to penetrate the bacterial cell membrane in addition to its intrinsic activity. Similarly, lankacidinol is as potent as lankacidin or erythromycin as an inhibitor of bacterial polypeptide synthesis in a cell-free system. This intrinsic activity is expressed as potent antibacterial activity against growing gram-positive cultures in O(2')-acyl derivatives with the proper lipophilicity.
Collapse
|