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Liao Y, Wang XJ, Ma GL, Candra H, Qiu En SL, Khandelwal S, Liang ZX. Biosynthesis of Octacosamicin A: Uncommon Starter/extender Units and Product Releasing via Intermolecular Amidation. Chembiochem 2024; 25:e202300590. [PMID: 37908177 DOI: 10.1002/cbic.202300590] [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: 08/22/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Octacosamicin A is an antifungal metabolite featuring a linear polyene-polyol chain flanked by N-hydroxyguanidine and glycine moieties. We report here that sub-inhibitory concentrations of streptomycin elicited the production of octacosamicin A in Amycolatopsis azurea DSM 43854T . We identified the biosynthetic gene cluster (oca BGC) that encodes a modular polyketide synthase (PKS) system for assembling the polyene-polyol chain of octacosamicin A. Our analysis suggested that the N-hydroxyguanidine unit originates from a 4-guanidinobutyryl-CoA starter unit, while the PKS incorporates an α-hydroxyketone moiety using a (2R)-hydroxymalonyl-CoA extender unit. The modular PKS system contains a non-canonical terminal module that lacks thioesterase (TE) and acyl carrier protein (ACP) domains, indicating the biosynthesis is likely to employ an unconventional and cryptic off-loading mechanism that attaches glycine to the polyene-polyol chain via an intermolecular amidation reaction.
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Affiliation(s)
- Yanghui Liao
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
| | - Xue-Jiao Wang
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
| | - Guang-Lei Ma
- Future Health Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, 314102, China
| | - Hartono Candra
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
| | - Sean Lee Qiu En
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
| | - Srashti Khandelwal
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
| | - Zhao-Xun Liang
- School of Biological Sciences, Nanyang Technological University, Singapore, 67551, Singapore
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2
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Kumar P, Nalli Y, Singh S, Wakchaure PD, Gor R, Ghadge VA, Kim E, Ramalingam S, Azger Dusthackeer VN, Yoon YJ, Ganguly B, Shinde PB. Dactylides A-C, three new bioactive 22-membered macrolides produced by Dactylosporangium aurantiacum. J Antibiot (Tokyo) 2023; 76:503-510. [PMID: 37208457 DOI: 10.1038/s41429-023-00632-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/15/2023] [Accepted: 05/02/2023] [Indexed: 05/21/2023]
Abstract
Three new 22-membered polyol macrolides, dactylides A-C (1-3), were isolated from Dactylosporangium aurantiacum ATCC 23491 employing repeated chromatographic separations, and their structures were established based on detailed analysis of NMR and MS data. The relative configurations at the stereocenters were established via vicinal 1H-1H coupling constants, NOE correlations, and by application of Kishi's universal NMR database. In order to get insights into the biosynthetic pathway of 1-3, the genome sequence of the producer strain D. aurantiacum was obtained and the putative biosynthetic gene cluster encoding their biosynthesis was identified through bioinformatic analysis using antiSMASH. Compounds 1-3 showed significant in-vitro antimycobacterial and cytotoxic activity.
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Affiliation(s)
- Pankaj Kumar
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Yedukondalu Nalli
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, 364002, India
| | - Sanju Singh
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Padmaja D Wakchaure
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Computation and Simulation Unit, Analytical and Environmental Science Division and Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364002, India
| | - Ravi Gor
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Vishal A Ghadge
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Eunji Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Satish Ramalingam
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - V N Azger Dusthackeer
- Department of Bacteriology, National Institute for Research in Tuberculosis, ICMR, Sathyamoorty road, Chetpet, Chennai, 600031, Tamil Nadu, India
| | - Yeo Joon Yoon
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Bishwajit Ganguly
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Computation and Simulation Unit, Analytical and Environmental Science Division and Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364002, India
| | - Pramod B Shinde
- Natural Products & Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat, 364002, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Carretero-Molina D, Ortiz-López FJ, Gren T, Oves-Costales D, Martín J, Román-Hurtado F, Sparholt Jørgensen T, de la Cruz M, Díaz C, Vicente F, Blin K, Reyes F, Weber T, Genilloud O. Discovery of gargantulides B and C, new 52-membered macrolactones from Amycolatopsis sp. Complete absolute stereochemistry of the gargantulide family. Org Chem Front 2022. [DOI: 10.1039/d1qo01480c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Gargantulides B and C are among the most complex bacterial polyketides discovered so far. A combination of NMR and genome-based bioinformatics analyses allowed us to complete and revise the absolute stereochemistry of the entire gargantulide family.
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Affiliation(s)
- Daniel Carretero-Molina
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Francisco Javier Ortiz-López
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Tetiana Gren
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, building 220, 2800 Kgs. Lyngby, Denmark
| | - Daniel Oves-Costales
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Fernando Román-Hurtado
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Tue Sparholt Jørgensen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, building 220, 2800 Kgs. Lyngby, Denmark
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Kai Blin
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, building 220, 2800 Kgs. Lyngby, Denmark
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Tilmann Weber
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, building 220, 2800 Kgs. Lyngby, Denmark
| | - Olga Genilloud
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
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Kontou EE, Gren T, Ortiz-López FJ, Thomsen E, Oves-Costales D, Díaz C, de la Cruz M, Jiang X, Jørgensen TS, Blin K, Charusanti P, Reyes F, Genilloud O, Weber T. Discovery and Characterization of Epemicins A and B, New 30-Membered Macrolides from Kutzneria sp. CA-103260. ACS Chem Biol 2021; 16:1456-1468. [PMID: 34279911 DOI: 10.1021/acschembio.1c00318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Actinobacteria have been a rich source of novel, structurally complex natural products for many decades. Although the largest genus is Streptomyces, from which the majority of antibiotics in current and past clinical use were originally isolated, other less common genera also have the potential to produce a wealth of novel secondary metabolites. One example is the Kutzneria genus, which currently contains only five reported species. One of these species is Kutzneria albida DSM 43870T, which has 46 predicted biosynthetic gene clusters and is known to produce the macrolide antibiotic aculeximycin. Here, we report the isolation and structural characterization of two novel 30-membered glycosylated macrolides, epemicins A and B, that are structurally related to aculeximycin, from a rare Kutzneria sp. The absolute configuration for all chiral centers in the two compounds is proposed based on extensive 1D and 2D NMR studies and bioinformatics analysis of the gene cluster. Through heterologous expression and genetic inactivation, we have confirmed the link between the biosynthetic gene cluster and the new molecules. These findings show the potential of rare Actinobacteria to produce new, structurally diverse metabolites. Furthermore, the gene inactivation represents the first published report to genetically manipulate a representative of the Kutzneria genus.
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Affiliation(s)
- Eftychia Eva Kontou
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Tetiana Gren
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Francisco Javier Ortiz-López
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Emil Thomsen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Daniel Oves-Costales
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Xinglin Jiang
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Tue Sparholt Jørgensen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Kai Blin
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Pep Charusanti
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Armilla, Granada, Spain
| | - Tilmann Weber
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet bygning 220, 2800 Kgs. Lyngby, Denmark
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Mohamed OG, Dorandish S, Lindow R, Steltz M, Shoukat I, Shoukat M, Chehade H, Baghdadi S, McAlister-Raeburn M, Kamal A, Abebe D, Ali K, Ivy C, Antonova M, Schultz P, Angell M, Clemans D, Friebe T, Sherman D, Casper AM, Price PA, Tripathi A. Identification of a New Antimicrobial, Desertomycin H, Utilizing a Modified Crowded Plate Technique. Mar Drugs 2021; 19:424. [PMID: 34436264 PMCID: PMC8400312 DOI: 10.3390/md19080424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/24/2021] [Accepted: 07/24/2021] [Indexed: 11/17/2022] Open
Abstract
The antibiotic-resistant bacteria-associated infections are a major global healthcare threat. New classes of antimicrobial compounds are urgently needed as the frequency of infections caused by multidrug-resistant microbes continues to rise. Recent metagenomic data have demonstrated that there is still biosynthetic potential encoded in but transcriptionally silent in cultivatable bacterial genomes. However, the culture conditions required to identify and express silent biosynthetic gene clusters that yield natural products with antimicrobial activity are largely unknown. Here, we describe a new antibiotic discovery scheme, dubbed the modified crowded plate technique (mCPT), that utilizes complex microbial interactions to elicit antimicrobial production from otherwise silent biosynthetic gene clusters. Using the mCPT as part of the antibiotic crowdsourcing educational program Tiny EarthTM, we isolated over 1400 antibiotic-producing microbes, including 62 showing activity against multidrug-resistant pathogens. The natural product extracts generated from six microbial isolates showed potent activity against vancomycin-intermediate resistant Staphylococcus aureus. We utilized a targeted approach that coupled mass spectrometry data with bioactivity, yielding a new macrolactone class of metabolite, desertomycin H. In this study, we successfully demonstrate a concept that significantly increased our ability to quickly and efficiently identify microbes capable of the silent antibiotic production.
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Affiliation(s)
- Osama G. Mohamed
- Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (O.G.M.); (P.S.)
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el-Aini Street, Cairo 11562, Egypt
| | - Sadaf Dorandish
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Rebecca Lindow
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Megan Steltz
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Ifrah Shoukat
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Maira Shoukat
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Hussein Chehade
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Sara Baghdadi
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Madelaine McAlister-Raeburn
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
- Biological Sciences, Mount Holyoke College, South Hadley, MA 01075, USA
| | - Asad Kamal
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
- Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Dawit Abebe
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Khaled Ali
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Chelsey Ivy
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Maria Antonova
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Pamela Schultz
- Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (O.G.M.); (P.S.)
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Michael Angell
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Daniel Clemans
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Timothy Friebe
- Chemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA;
| | - David Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Anne M. Casper
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Paul A. Price
- Biology Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (S.D.); (R.L.); (M.S.); (I.S.); (M.S.); (H.C.); (S.B.); (M.M.-R.); (A.K.); (D.A.); (K.A.); (C.I.); (M.A.); (M.A.); (D.C.); (A.M.C.)
| | - Ashootosh Tripathi
- Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (O.G.M.); (P.S.)
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
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6
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Fuwa H. Synthesis-Driven Stereochemical Assignment of Marine Polycyclic Ether Natural Products. Mar Drugs 2021; 19:257. [PMID: 33947080 PMCID: PMC8145320 DOI: 10.3390/md19050257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 01/11/2023] Open
Abstract
Marine polycyclic ether natural products have gained significant interest from the chemical community due to their impressively huge molecular architecture and diverse biological functions. The structure assignment of this class of extraordinarily complex natural products has mainly relied on NMR spectroscopic analysis. However, NMR spectroscopic analysis has its own limitations, including configurational assignment of stereogenic centers within conformationally flexible systems. Chemical shift deviation analysis of synthetic model compounds is a reliable means to assign the relative configuration of "difficult" stereogenic centers. The complete configurational assignment must be ultimately established through total synthesis. The aim of this review is to summarize the indispensable role of organic synthesis in stereochemical assignment of marine polycyclic ethers.
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Affiliation(s)
- Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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7
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Abstract
This review covers the literature published between January and December in 2018 for marine natural products (MNPs), with 717 citations (706 for the period January to December 2018) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1554 in 469 papers for 2018), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. The proportion of MNPs assigned absolute configuration over the last decade is also surveyed.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia and School of Environment and Science, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Michèle R Prinsep
- Chemistry, School of Science, University of Waikato, Hamilton, New Zealand
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8
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Fuwa H. Structure determination, correction, and disproof of marine macrolide natural products by chemical synthesis. Org Chem Front 2021. [DOI: 10.1039/d1qo00481f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Integration of chemical synthesis, NMR spectroscopy, and various analytical means is key to success in the structure elucidation of stereochemically complex marine macrolide natural products.
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Affiliation(s)
- Haruhiko Fuwa
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551
- Japan
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9
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Ma X, Liang X, Huang ZH, Qi SH. New alkaloids and isocoumarins from the marine gorgonian-derived fungus Aspergillus sp. SCSIO 41501. Nat Prod Res 2019; 34:1992-2000. [PMID: 30761921 DOI: 10.1080/14786419.2019.1569660] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two new β-carboline alkaloids, aspergillspins A-B (1-2), three new quinolone alkaloids, aspergillspins C-E (3-5), and two new isocoumarins, aspergillspins F-G (6-7), together with four known alkaloids were isolated from the marine gorgonian-derived fungus Aspergillus sp. SCSIO 41501. Their structures were identified by spectroscopic analysis, and the absolute configurations of several chiral carbons in 2 and 3 were further established by quantum chemical calculations of the electronic circular dichroism (ECD) spectra. Their cytotoxic and antibacterial activities were also evaluated.
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Affiliation(s)
- Xuan 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, Guangzhou, China
| | - Xiao Liang
- 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, Guangzhou, China.,University of the Chinese Academy of Sciences, Beijing, China
| | - Zhong-Hui Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China
| | - Shu-Hua Qi
- 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, Guangzhou, China
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10
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Isolation, Structure Elucidation and Biological Evaluation of Lagunamide D: A New Cytotoxic Macrocyclic Depsipeptide from Marine Cyanobacteria. Mar Drugs 2019; 17:md17020083. [PMID: 30717076 PMCID: PMC6410412 DOI: 10.3390/md17020083] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/14/2022] Open
Abstract
Lagunamide D, a new cytotoxic macrocyclic depsipeptide, was discovered from a collection of marine cyanobacteria from Loggerhead Key in the Dry Tortugas, Florida. An intramolecular ester exchange was observed, where the 26-membered macrocycle could contract to a 24-membered compound via acyl migration at the 1,3-diol unit, and the transformation product was named lagunamide D’. The planar structures of both compounds were elucidated using a combination of nuclear magnetic resonance (NMR) spectroscopy and high-resolution mass spectroscopy (HRMS). The absolute configurations were determined on the basis of enantioselective analysis, modified Mosher’s analysis, Kishi NMR database, and direct comparison with lagunamide A, a structure closely resembling lagunamide D. Lagunamides A and D displayed low-nanomolar antiproliferative activity against A549 human lung adenocarcinoma cells, while the structural transformation from the 26-membered lagunamide D macrocycle to the 24-membered ring structure for lagunamide D’ led to a 9.6-fold decrease in activity. Lagunamide D also displayed potent activity in triggering apoptosis in a dose- and time-dependent manner. Further investigation on the mechanism of action of the lagunamide scaffold is needed to fully explore its therapeutic potential as an anticancer agent.
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11
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Menna M, Imperatore C, Mangoni A, Della Sala G, Taglialatela-Scafati O. Challenges in the configuration assignment of natural products. A case-selective perspective. Nat Prod Rep 2019; 36:476-489. [DOI: 10.1039/c8np00053k] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An overview by a case study approach on the currently available methods for the configurational analysis of natural products.
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Affiliation(s)
- Marialuisa Menna
- Department of Pharmacy
- University of Naples Federico II
- 80131 Napoli
- Italy
| | | | - Alfonso Mangoni
- Department of Pharmacy
- University of Naples Federico II
- 80131 Napoli
- Italy
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12
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Pérez-Victoria I, Oves-Costales D, Lacret R, Martín J, Sánchez-Hidalgo M, Díaz C, Cautain B, Vicente F, Genilloud O, Reyes F. Structure elucidation and biosynthetic gene cluster analysis of caniferolides A–D, new bioactive 36-membered macrolides from the marine-derived Streptomyces caniferus CA-271066. Org Biomol Chem 2019; 17:2954-2971. [DOI: 10.1039/c8ob03115k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The structures of caniferolides A–D have been determined combining NMR and bioinformatics prediction of the absolute configuration.
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13
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Son S, Hong YS, Futamura Y, Jang M, Lee JK, Heo KT, Ko SK, Lee JS, Takahashi S, Osada H, Jang JH, Ahn JS. Catenulisporolides, Glycosylated Triene Macrolides from the Chemically Underexploited Actinomycete Catenulispora Species. Org Lett 2018; 20:7234-7238. [DOI: 10.1021/acs.orglett.8b03160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sangkeun Son
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
| | - Young-Soo Hong
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Yushi Futamura
- Chemical Biology Research Group, RIKEN Center for Sustainable Research Science, Saitama 351-0198, Japan
| | - Mina Jang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jae Kyoung Lee
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
| | - Kyung Taek Heo
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Sung-Kyun Ko
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jung Sook Lee
- Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Korea
| | - Shunji Takahashi
- RIKEN-KRIBB Joint Research Unit, RIKEN Center for Sustainable Research Science, Saitama 351-0198, Japan
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN Center for Sustainable Research Science, Saitama 351-0198, Japan
| | - Jae-Hyuk Jang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jong Seog Ahn
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
- Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
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14
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Ueoka R, Bhushan A, Probst SI, Bray WM, Lokey RS, Linington RG, Piel J. Genome-Based Identification of a Plant-Associated Marine Bacterium as a Rich Natural Product Source. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805673] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Reiko Ueoka
- Institute of Microbiology; Eigenössische Technische Hochschule (ETH) Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
| | - Agneya Bhushan
- Institute of Microbiology; Eigenössische Technische Hochschule (ETH) Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
| | - Silke I. Probst
- Institute of Microbiology; Eigenössische Technische Hochschule (ETH) Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
| | - Walter M. Bray
- Chemistry & Biochemistry Department; University of California Santa Cruz; 1156 High Street 95064 Santa Cruz California USA
| | - R. Scott Lokey
- Chemistry & Biochemistry Department; University of California Santa Cruz; 1156 High Street 95064 Santa Cruz California USA
| | - Roger G. Linington
- Department of Chemistry; Simon Fraser University; 8888 University Drive Bumaby BC V5A 1S6 Canada
| | - Jörn Piel
- Institute of Microbiology; Eigenössische Technische Hochschule (ETH) Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
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Ueoka R, Bhushan A, Probst SI, Bray WM, Lokey RS, Linington RG, Piel J. Genome-Based Identification of a Plant-Associated Marine Bacterium as a Rich Natural Product Source. Angew Chem Int Ed Engl 2018; 57:14519-14523. [PMID: 30025185 DOI: 10.1002/anie.201805673] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/12/2018] [Indexed: 01/14/2023]
Abstract
The large number of sequenced bacterial genomes provides the opportunity to bioinformatically identify rich natural product sources among previously neglected microbial groups. Testing this discovery strategy, unusually high biosynthetic potential was suggested for the Oceanospirillales member Gynuella sunshinyii, a Gram-negative marine bacterium from the rhizosphere of the halophilic plant Carex scabrifolia. Its genome contains numerous unusual biosynthetic gene clusters for diverse types of metabolites. Genome-guided isolation yielded representatives of four different natural product classes, of which only alteramide A was known. Cytotoxic lacunalides were identified as products of a giant trans-acyltransferase polyketide synthase gene cluster, one of six present in this strain. Cytological profiling against HeLa cells suggested that lacunalide A disrupts CDK signaling in the cell cycle. In addition, chemical studies on model compounds were conducted, suggesting the structurally unusual ergoynes as products of a conjugated diyne-thiourea cyclization reaction.
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Affiliation(s)
- Reiko Ueoka
- Institute of Microbiology, Eigenössische Technische Hochschule (ETH) Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
| | - Agneya Bhushan
- Institute of Microbiology, Eigenössische Technische Hochschule (ETH) Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
| | - Silke I Probst
- Institute of Microbiology, Eigenössische Technische Hochschule (ETH) Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
| | - Walter M Bray
- Chemistry & Biochemistry Department, University of California Santa Cruz, 1156 High Street, 95064, Santa Cruz, California, USA
| | - R Scott Lokey
- Chemistry & Biochemistry Department, University of California Santa Cruz, 1156 High Street, 95064, Santa Cruz, California, USA
| | - Roger G Linington
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Bumaby, BC, V5A 1S6, Canada
| | - Jörn Piel
- Institute of Microbiology, Eigenössische Technische Hochschule (ETH) Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
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16
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Hu Y, Wang M, Wu C, Tan Y, Li J, Hao X, Duan Y, Guan Y, Shang X, Wang Y, Xiao C, Gan M. Identification and Proposed Relative and Absolute Configurations of Niphimycins C-E from the Marine-Derived Streptomyces sp. IMB7-145 by Genomic Analysis. JOURNAL OF NATURAL PRODUCTS 2018; 81:178-187. [PMID: 29308897 DOI: 10.1021/acs.jnatprod.7b00859] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Analysis of the whole genome sequence of Streptomyces sp. IMB7-145 revealed the presence of seven type I polyketide synthase biosynthetic gene clusters, one of which was highly homologous to the biosynthetic gene cluster of azalomycin F. Detailed bioinformatic analysis of the modular organization of the PKS gene suggested that this gene is responsible for niphimycin biosynthesis. Guided by genomic analysis, a large-scale cultivation ultimately led to the discovery and characterization of four new niphimycin congeners, namely, niphimycins C-E (1-3) and 17-O-methylniphimycin (4). The configurations of most stereocenters of niphimycins have not been determined to date. In the present study, the relative configurations were elucidated by spectroscopic analysis, including J-based analysis and the CNMR database method. Further, the full absolute configurations of niphimycins were completely proposed for the first time based on biosynthetic gene cluster analysis of the ketoreductase and enoylreductase domains for hydroxy- and methyl-bearing stereocenters. Compounds 1, 3, 4, and niphimycin Iα (5) showed antimicrobial activity against methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci (MIC: 8-64 μg/mL), as well as cytotoxicity against the human HeLa cancer cell line (IC50: 3.0-9.0 μM). In addition, compounds 1 and 5 displayed significant activity against several Mycobacterium tuberculosis clinical isolates (MIC: 4-32 μg/mL).
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Affiliation(s)
- Yuanyuan Hu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Mian Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Chunyan Wu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University , Beijing 100191, People's Republic of China
| | - Yi Tan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Jiao Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Xiaomeng Hao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Yanbo Duan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Yan Guan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Xiaoya Shang
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University , Beijing 100191, People's Republic of China
| | - Yiguang Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Chunling Xiao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Maoluo Gan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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17
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Heat Shock Protein-Inducing Property of Diarylheptanoid Containing Chalcone Moiety from Alpinia katsumadai. Molecules 2017; 22:molecules22101750. [PMID: 29039794 PMCID: PMC6151646 DOI: 10.3390/molecules22101750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/14/2017] [Accepted: 10/16/2017] [Indexed: 01/10/2023] Open
Abstract
A new diarylheptanoid containing a chalcone moiety, katsumain H (1), was isolated from the seeds of Alpinia katsumadai. The structure was elucidated using a combination of 1D/2D NMR spectroscopy and mass spectrometry data analysis. The absolute configurations of C-3, C-5, and C-7 in 1 were assigned based on its optical rotation and after comparing its NMR chemical shifts with those of its diastereoisomers, katsumain E and katsumain F, which were previously isolated from this plant and characterized. In this study, the stimulatory effects of compounds 1 and 2 were evaluated on heat shock factor 1 (HSF1), heat shock protein 27 (HSP27), and HSP70. Compounds 1 and 2 increased the expression of HSF1 (1.056- and 1.200-fold, respectively), HSP27 (1.312- and 1.242-fold, respectively), and HSP70 (1.234- and 1.271-fold, respectively), without increased cytotoxicity.
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18
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Instant structure profiling of substituted catechins by chemical shift fingerprint of hydrogens of phenolic hydroxyl groups. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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19
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Luciano P, Imperatore C, Senese M, Aiello A, Casertano M, Guo YW, Menna M. Assignment of the Absolute Configuration of Phosphoeleganin via Synthesis of Model Compounds. JOURNAL OF NATURAL PRODUCTS 2017; 80:2118-2123. [PMID: 28699746 DOI: 10.1021/acs.jnatprod.7b00397] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The full absolute configuration assignment of phosphoeleganin (1), a recently discovered marine-derived phosphorylated polyketide with protein tyrosine phosphatase 1B inhibitory activity, was achieved. It was based on the synthesis of model diasteroisomeric compounds of the C-8-C-12 segment portion of phosphoeleganin, chiral derivatization methods, and application of the universal NMR database concept.
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Affiliation(s)
- Paolo Luciano
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
| | - Concetta Imperatore
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
| | - Maria Senese
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
| | - Anna Aiello
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
| | - Marcello Casertano
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
| | - Yue-W Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Zu Chong Zhi Road 555, Shanghai 201203, People's Republic of China
| | - Marialuisa Menna
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II" , Via D. Montesano, 49, I-80131 Napoli, Italy
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20
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Rare Polyene-polyol Macrolides from Mangrove-derived Streptomyces sp. ZQ4BG. Sci Rep 2017; 7:1703. [PMID: 28490799 PMCID: PMC5431850 DOI: 10.1038/s41598-017-01912-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/30/2017] [Indexed: 02/02/2023] Open
Abstract
Bioactive natural products from mangrove-derived actinomycetes are important sources for discovery of drug lead compounds. In this study, an extract prepared from culture of an actinomycete Streptomyces sp. ZQ4BG isolated from mangrove soils was found to have activity in inhibiting proliferation of glioma cells. Large culture of this mangrove actinomycete in Gause’s liquid medium resulted in isolation of seven novel polyene-polyol macrolides, named as flavofungins III–IX (3–9), together with known flavofungins I (1) and II (2) and spectinabilin (10). Structures of these isolated compounds were elucidated by extensive NMR analyses and HRESIMS data. The stereochemical assignments were achieved by a combination of NOE information, universal NMR database, and chemical reactions including preparation of acetonide derivatives and Mosher esters. Flavofungins IV–VIII (4–8) are rare 32-membered polyene-polyol macrolides with a tetrahydrofuran ring, while flavofungin IX (9) represents the first example of this type of macrolide with a unique oxepane ring. Flavofungins I (1) and II (2) and spectinabilin (10) showed anti-glioma and antifungal activities.
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Hong H, Samborskyy M, Lindner F, Leadlay PF. An Amidinohydrolase Provides the Missing Link in the Biosynthesis of Amino Marginolactone Antibiotics. Angew Chem Int Ed Engl 2016; 55:1118-23. [PMID: 26630438 PMCID: PMC4737276 DOI: 10.1002/anie.201509300] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 01/23/2023]
Abstract
Desertomycin A is an aminopolyol polyketide containing a macrolactone ring. We have proposed that desertomycin A and similar compounds (marginolactones) are formed by polyketide synthases primed not with γ-aminobutanoyl-CoA but with 4-guanidinylbutanoyl-CoA, to avoid facile cyclization of the starter unit. This hypothesis requires that there be a final-stage de-amidination of the corresponding guanidino-substituted natural product, but no enzyme for such a process has been described. We have now identified candidate amidinohydrolase genes within the desertomycin and primycin clusters. Deletion of the putative desertomycin amidinohydrolase gene dstH in Streptomyces macronensis led to the accumulation of desertomycin B, the guanidino form of the antibiotic. Also, purified DstH efficiently catalyzed the in vitro conversion of desertomycin B into the A form. Hence this amidinohydrolase furnishes the missing link in this proposed naturally evolved example of protective-group chemistry.
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Affiliation(s)
- Hui Hong
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Markiyan Samborskyy
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Frederick Lindner
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
- Institut für Organische Chemie, Leibniz Universität Hannover, Schneiderberg 1 B, 30167, Hannover, Germany
| | - Peter F Leadlay
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK.
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22
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Hong H, Samborskyy M, Lindner F, Leadlay PF. An Amidinohydrolase Provides the Missing Link in the Biosynthesis of Amino Marginolactone Antibiotics. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hui Hong
- Department of Biochemistry; University of Cambridge; 80 Tennis Court Road Cambridge CB2 1GA UK
| | - Markiyan Samborskyy
- Department of Biochemistry; University of Cambridge; 80 Tennis Court Road Cambridge CB2 1GA UK
| | - Frederick Lindner
- Department of Biochemistry; University of Cambridge; 80 Tennis Court Road Cambridge CB2 1GA UK
- Institut für Organische Chemie; Leibniz Universität Hannover; Schneiderberg 1 B 30167 Hannover Germany
| | - Peter F. Leadlay
- Department of Biochemistry; University of Cambridge; 80 Tennis Court Road Cambridge CB2 1GA UK
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23
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Gaudêncio SP, Pereira F. Dereplication: racing to speed up the natural products discovery process. Nat Prod Rep 2015; 32:779-810. [PMID: 25850681 DOI: 10.1039/c4np00134f] [Citation(s) in RCA: 162] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Covering: 1993-2014 (July)To alleviate the dereplication holdup, which is a major bottleneck in natural products discovery, scientists have been conducting their research efforts to add tools to their "bag of tricks" aiming to achieve faster, more accurate and efficient ways to accelerate the pace of the drug discovery process. Consequently dereplication has become a hot topic presenting a huge publication boom since 2012, blending multidisciplinary fields in new ways that provide important conceptual and/or methodological advances, opening up pioneering research prospects in this field.
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Affiliation(s)
- Susana P Gaudêncio
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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24
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Armaly AM, DePorre YC, Groso EJ, Riehl PS, Schindler CS. Discovery of Novel Synthetic Methodologies and Reagents during Natural Product Synthesis in the Post-Palytoxin Era. Chem Rev 2015; 115:9232-76. [DOI: 10.1021/acs.chemrev.5b00034] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ahlam M. Armaly
- Department of Chemistry, University of Michigan, 930 North
University Avenue, Ann Arbor, Michigan 48109, United States
| | - Yvonne C. DePorre
- Department of Chemistry, University of Michigan, 930 North
University Avenue, Ann Arbor, Michigan 48109, United States
| | - Emilia J. Groso
- Department of Chemistry, University of Michigan, 930 North
University Avenue, Ann Arbor, Michigan 48109, United States
| | - Paul S. Riehl
- Department of Chemistry, University of Michigan, 930 North
University Avenue, Ann Arbor, Michigan 48109, United States
| | - Corinna S. Schindler
- Department of Chemistry, University of Michigan, 930 North
University Avenue, Ann Arbor, Michigan 48109, United States
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25
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26
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Iso-petromyroxols: novel dihydroxylated tetrahydrofuran enantiomers from sea lamprey (Petromyzon marinus). Molecules 2015; 20:5215-22. [PMID: 25806547 PMCID: PMC6272722 DOI: 10.3390/molecules20035215] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/17/2015] [Accepted: 03/18/2015] [Indexed: 12/03/2022] Open
Abstract
An enantiomeric pair of new fatty acid-derived hydroxylated tetrahydrofurans, here named iso-petromyroxols, were isolated from sea lamprey larvae-conditioned water. The relative configuration of iso-petromyroxol was elucidated with 1D and 2D NMR spectroscopic analyses. The ratio of enantiomers (er) in the natural sample was measured by chiral-HPLC-MS/MS to be ca. 3:1 of (–)- to (+)-antipodes.
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Audoin C, Sánchez JA, Genta-Jouve G, Alfonso A, Rios L, Vale C, Thomas OP, Botana LM. Autumnalamide, a prenylated cyclic peptide from the cyanobacterium Phormidium autumnale, acts on SH-SY5Y cells at the mitochondrial level. JOURNAL OF NATURAL PRODUCTS 2014; 77:2196-2205. [PMID: 25265024 DOI: 10.1021/np500374a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Filamentous cyanobacteria of the genus Phormidium have been rarely studied for their chemical diversity. For the first time, the cultivable Phormidium autumnale was shown to produce a prenylated cyclic peptide named autumnalamide (1). The structure of this peptide was fully determined after a deep exploration of the spectroscopic data, including NMR and HRMS. Interestingly, a prenyl moiety was located on the guanidine end of the arginine amino acid. The absolute configurations of most amino acids were assessed using enantioselective GC/MS analysis, with (13)C NMR modeling being used for the determination of d-arginine and d-proline. The effects of 1 on sodium and calcium fluxes were studied in SH-SY5Y and hNav 1.6 HEK cells. When the Ca(2+) influx was stimulated by thapsigargin, strong inhibition was observed in the presence of 1. As a consequence, this compound may act by disrupting the normal calcium uptake of this organelle, inducing the opening of the mitochondrial permeability transition pore, which results in the indirect blockade of store-operated channels.
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Affiliation(s)
- Coralie Audoin
- Institut de Chimie de Nice-PCRE, UMR 7272 CNRS, Faculty of Science, University of Nice Sophia-Antipolis , Parc Valrose, 06108 Nice, France
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Kanoh N, Kawamata A, Itagaki T, Miyazaki Y, Yahata K, Kwon E, Iwabuchi Y. A Concise and Unified Strategy for Synthesis of the C1–C18 Macrolactone Fragments of FD-891, FD-892 and Their Analogues: Formal Total Synthesis of FD-891. Org Lett 2014; 16:5216-9. [DOI: 10.1021/ol502633j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Kanoh
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Ayano Kawamata
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Tomohiro Itagaki
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yuta Miyazaki
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kenzo Yahata
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Eunsang Kwon
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences and ‡Research and Analytical Center
for Giant Molecules, Graduate School of Science, Tohoku University, 6-3
Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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Norrehed S, Johansson H, Grennberg H, Gogoll A. Improved Stereochemical Analysis of Conformationally Flexible Diamines by Binding to a Bisporphyrin Molecular Clip. Chemistry 2013; 19:14631-8. [DOI: 10.1002/chem.201300533] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 06/06/2013] [Indexed: 01/09/2023]
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Yuan G, Li P, Pan W, Pang H, Chen S. The relative configurations of azalomycins F5a, F4a and F3a. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.09.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Nozawa K, Tsuda M, Tanaka N, Kubota T, Fukushi E, Kawabata J, Kobayashi J. Stereochemistry of theonezolides A–C. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Molinski TF, Morinaka BI. INTEGRATED APPROACHES TO THE CONFIGURATIONAL ASSIGNMENT OF MARINE NATURAL PRODUCTS. Tetrahedron 2012; 68:9307-9343. [PMID: 23814320 PMCID: PMC3694619 DOI: 10.1016/j.tet.2011.12.070] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Tadeusz F. Molinski
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
| | - Brandon I. Morinaka
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
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33
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Helaly SE, Kulik A, Zinecker H, Ramachandaran K, Tan GYA, Imhoff JF, Süssmuth RD, Fiedler HP, Sabaratnam V. Langkolide, a 32-membered macrolactone antibiotic produced by Streptomyces sp. Acta 3062. JOURNAL OF NATURAL PRODUCTS 2012; 75:1018-1024. [PMID: 22642587 DOI: 10.1021/np200580g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A new 32-membered macrolactone antibiotic, named langkolide, was isolated from the mycelium of Streptomyces sp. Acta 3062. The langkolide structure was determined by HR-MS and 1D and 2D NMR as a 32-membered macrolactone connected from an overhanging polyketide tail to a naphthoquinone unit mediated by two carbohydrate moieties. The producing strain was isolated from a rhizosphere soil of Clitorea sp. collected at Burau Bay, Langkawi, Malaysia, and was characterized by its morphological and chemotaxonomic features in addition to its 16S rRNA gene sequence. It was identified as a member of the Streptomyces galbus clade. Langkolide exhibited various bioactivities including antimicrobial and antiproliferative activities. Furthermore, langkolide inhibited human recombinant phosphodiesterase 4 with an IC(50) value of 0.48 μM.
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Affiliation(s)
- Soleiman E Helaly
- Institut für Chemie, Technische Universität Berlin, 10623 Berlin, Germany
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34
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Seco JM, Quiñoá E, Riguera R. Assignment of the Absolute Configuration of Polyfunctional Compounds by NMR Using Chiral Derivatizing Agents. Chem Rev 2012; 112:4603-41. [DOI: 10.1021/cr2003344] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- J. M. Seco
- Department of Organic
Chemistry and Center for Research in Biological
Chemistry and Molecular Materials (CIQUS), University of Santiago
de Compostela, E-15782 Santiago de Compostela, Spain
| | - E. Quiñoá
- Department of Organic
Chemistry and Center for Research in Biological
Chemistry and Molecular Materials (CIQUS), University of Santiago
de Compostela, E-15782 Santiago de Compostela, Spain
| | - R. Riguera
- Department of Organic
Chemistry and Center for Research in Biological
Chemistry and Molecular Materials (CIQUS), University of Santiago
de Compostela, E-15782 Santiago de Compostela, Spain
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35
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Mondol MAM, Kim JH, Lee MA, Tareq FS, Lee HS, Lee YJ, Shin HJ. Ieodomycins A-D, antimicrobial fatty acids from a marine Bacillus sp. JOURNAL OF NATURAL PRODUCTS 2011; 74:1606-1612. [PMID: 21699149 DOI: 10.1021/np200223r] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bioassay-guided isolation of the EtOAc extract of a marine Bacillus sp., cultured in modified Bennett's broth medium, yielded four new antimicrobial fatty acids, named ieodomycins A-D. The planar structures of these new compounds were determined by extensive 1D and 2D NMR and HRESIMS spectroscopic data analysis. Their absolute configurations were elucidated by modified Mosher's method and literature data review. All four new compounds demonstrated antimicrobial activities in vitro.
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Affiliation(s)
- M A Mojid Mondol
- Marine Natural Products Chemistry Laboratory, Korea Ocean Research & Development Institute, Ansan, P.O. Box 29, Seoul 425-600, Republic of Korea
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36
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Wenzel TJ, Chisholm CD. Using NMR spectroscopic methods to determine enantiomeric purity and assign absolute stereochemistry. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2011; 59:1-63. [PMID: 21600355 DOI: 10.1016/j.pnmrs.2010.07.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 07/28/2010] [Indexed: 05/30/2023]
Affiliation(s)
- Thomas J Wenzel
- Department of Chemistry, Bates College, Lewiston, Maine 04240, USA.
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37
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Yan J, Garzan A, Narayan RS, Vasileiou C, Borhan B. A minimalist NMR approach for the structural revision of mucoxin. Chemistry 2010; 16:13749-56. [PMID: 21089037 DOI: 10.1002/chem.201001619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In an attempt to revise the structural assignment of mucoxin, and faced with 64 diastereomeric possibilities, we resorted to the synthesis of truncated structures that contained the core stereochemical sites. Twelve stereochemical analogues were synthesized, their (1)H and (13)C NMR spectra were analyzed and four recurring stereochemical trends were distilled from the data. Applying the observed trends to the diastereomeric population pared the possible choices for the correct structure of mucoxin from 64 to 4. Synthesis of these analogues led to the identification of the correct structure of mucoxin.
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Affiliation(s)
- Jun Yan
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
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38
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Salvador LA, Paul VJ, Luesch H. Caylobolide B, a macrolactone from symplostatin 1-producing marine cyanobacteria Phormidium spp. from Florida. JOURNAL OF NATURAL PRODUCTS 2010; 73:1606-1609. [PMID: 20806908 PMCID: PMC2965599 DOI: 10.1021/np100467d] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A Phormidium spp. collection from Key West, Florida, afforded caylobolide B (1), an analogue of the known macrolactone caylobolide A, previously isolated from a Lyngbya majuscula collection from the Bahamas. The planar structure of 1 was determined using NMR and MS experiments. The relative configuration for subunits C7-C9 and C25-C29 was assigned using Kishi's Universal NMR Database. Caylobolide B (1) displayed cytotoxic activity against HT29 colorectal adenocarcinoma and HeLa cervical carcinoma cells with IC(50) values of 4.5 and 12.2 μM, respectively.
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Affiliation(s)
| | | | - Hendrik Luesch
- To whom correspondence should be addressed. Tel.: (352) 273-7738. Fax: (352) 273-7741.
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39
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Wenzel TJ, Chisholm CD. Assignment of absolute configuration using chiral reagents and NMR spectroscopy. Chirality 2010; 23:190-214. [DOI: 10.1002/chir.20889] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 05/18/2010] [Indexed: 11/11/2022]
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40
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Fleury E, Lannou MI, Bistri O, Sautel F, Massiot G, Pancrazi A, Ardisson J. Advances in the Universal NMR Database: Toward the Determination of the Relative Configurations of Large Polypropionates. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900616] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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41
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Fleury E, Lannou MI, Bistri O, Sautel F, Massiot G, Pancrazi A, Ardisson J. Relative Stereochemical Determination and Synthesis of the C1−C17 Fragment of a New Natural Polyketide. J Org Chem 2009; 74:7034-45. [DOI: 10.1021/jo9012833] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Etienne Fleury
- CNRS UMR 8638, Faculté de Pharmacie, Université Paris Descartes, 4 avenue de l’observatoire, 75270 Paris cedex 06, France
| | - Marie-Isabelle Lannou
- CNRS UMR 8638, Faculté de Pharmacie, Université Paris Descartes, 4 avenue de l’observatoire, 75270 Paris cedex 06, France
| | - Olivia Bistri
- CNRS UMR 8638, Faculté de Pharmacie, Université Paris Descartes, 4 avenue de l’observatoire, 75270 Paris cedex 06, France
| | - François Sautel
- CNRS/Pierre Fabre UMS 2597, Laboratoire Pierre Fabre, 3 rue des satellites, BP 94244, 31402 Toulouse cedex 4, France
| | - Georges Massiot
- CNRS/Pierre Fabre UMS 2597, Laboratoire Pierre Fabre, 3 rue des satellites, BP 94244, 31402 Toulouse cedex 4, France
| | - Ange Pancrazi
- CNRS UMR 8638, Faculté de Pharmacie, Université Paris Descartes, 4 avenue de l’observatoire, 75270 Paris cedex 06, France
| | - Janick Ardisson
- CNRS UMR 8638, Faculté de Pharmacie, Université Paris Descartes, 4 avenue de l’observatoire, 75270 Paris cedex 06, France
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42
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Kwon HC, Kauffman CA, Jensen PR, Fenical W. Marinisporolides, polyene-polyol macrolides from a marine actinomycete of the new genus Marinispora. J Org Chem 2009; 74:675-84. [PMID: 19132943 DOI: 10.1021/jo801944d] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new polyene macrolides, marinisporolides A and B (1, 2), were isolated from the saline culture of the marine actinomycete, strain CNQ-140, identified as a member of the new marine genus Marinispora. The marinisporolides are 34-membered macrolides composed of a conjugated pentaene and several pairs of 1,3-dihydroxyl functionalities. Marinisporolide A (1) contains a bicyclic spiro-bis-tetrahydropyran ketal functionality, while marinisporolide B (2) is the corresponding hemiketal. The structures of these new compounds were assigned by combined spectral and chemical methods including extensive 2D NMR experiments and correlations of (13)C NMR data with Kishi's Universal NMR Database. Chemical modifications, including methanolysis, acetonide formation, and application of the modified Mosher method, provided the full stereostructures of these molecules. Three additional macrolides, marinisporolides C-E (3-5), which are olefin geometric isomers of marinisporolide A (1), were also isolated and their structures defined. Under room light, marinisporolides A and B readily photoisomerize to C-E indicating that they are most likely produced by photochemical conversion during the cultivation or isolation procedures. Although polyenes, marinisporolides A (1) and B (2) showed weak to no antifungal activity against Candida albicans.
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Affiliation(s)
- Hak Cheol Kwon
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California 92093-0204, USA
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43
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Poza JJ, Jiménez C, Rodríguez J. J-Based Analysis and DFT-NMR Assignments of Natural Complex Molecules: Application to 3β,7-Dihydroxy-5,6-epoxycholestanes. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800358] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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Plaza A, Baker HL, Bewley CA. Mirabalin, [corrected] an antitumor macrolide lactam from the marine sponge Siliquariaspongia mirabilis. JOURNAL OF NATURAL PRODUCTS 2008; 71:473-477. [PMID: 18271553 DOI: 10.1021/np070603p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A new highly unsaturated macrolide lactam, termed mirabilin ( 1), was isolated from the aqueous extract of the marine sponge Siliquariaspongia mirabilis. Mirabilin is characterized by the presence of a 35-membered macrolide lactam ring bearing a pentadiene conjugated system and a tetrasubstituted tetrahydropyran ring. A linear polyketide moiety is attached to the macrocyclic ring through an amide linkage. The structure of mirabilin was determined using extensive 2D NMR and ESIMS and tandem MS techniques. Mirabilin inhibits the growth of the tumor cell line HCT-116 with an IC 50 value of 0.27 +/- 0.09 microM and is noncytotoxic to several other cell lines.
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Affiliation(s)
- Alberto Plaza
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0820, USA
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45
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Lievens SC, Molinski TF. Progressive-convergent elucidation of stereochemistry in complex polyols. The absolute configuration of (-)-sagittamide A. J Am Chem Soc 2007; 128:11764-5. [PMID: 16953609 PMCID: PMC3340292 DOI: 10.1021/ja063735y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The absolute stereostructure of sagittamide A (1), a O-hexacetyl long-chain hexahydroxy-alpha,omega-dicarboxylic acid, was assigned using a progressive-convergent approach that integrates three powerful regimens for stereochemical analysis of acyclic natural products: J-based analysis, 13C NMR universal database comparisons, and exciton coupling circular dichroism.
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46
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Bifulco G, Dambruoso P, Gomez-Paloma L, Riccio R. Determination of relative configuration in organic compounds by NMR spectroscopy and computational methods. Chem Rev 2007; 107:3744-79. [PMID: 17649982 DOI: 10.1021/cr030733c] [Citation(s) in RCA: 452] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Giuseppe Bifulco
- Dipartimento di Scienze Farmaceutiche, University of Salerno, Via Ponte Don Melillo, 84084 Fisciano, Salerno, Italy.
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47
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Symbiodinolide, a novel polyol macrolide that activates N-type Ca2+ channel, from the symbiotic marine dinoflagellate Symbiodinium sp. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.02.093] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Evans D, Nagorny P, McRae K, Sonntag LS, Reynolds D, Vounatsos F. Enantioselective Synthesis of Oasomycin A, Part III: Fragment Assembly and Confirmation of Structure. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603652] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Evans DA, Nagorny P, McRae KJ, Sonntag LS, Reynolds DJ, Vounatsos F. Enantioselective Synthesis of Oasomycin A, Part III: Fragment Assembly and Confirmation of Structure. Angew Chem Int Ed Engl 2007; 46:545-8. [PMID: 17154210 DOI: 10.1002/anie.200603652] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- David A Evans
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
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50
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Evans D, Nagorny P, McRae K, Reynolds D, Sonntag LS, Vounatsos F, Xu R. Enantioselective Synthesis of Oasomycin A, Part I: Synthesis of the C1–C12 and C13–C28 Subunits. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603653] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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