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Maw ZA, Haltli B, Guo JJ, Baldisseri DM, Cartmell C, Kerr RG. Discovery of Acyl-Surugamide A2 from Marine Streptomyces albidoflavus RKJM-0023-A New Cyclic Nonribosomal Peptide Containing an N-ε-acetyl-L-lysine Residue. Molecules 2024; 29:1482. [PMID: 38611762 PMCID: PMC11012974 DOI: 10.3390/molecules29071482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
We report the discovery of a novel cyclic nonribosomal peptide (NRP), acyl-surugamide A2, from a marine-derived Streptomyces albidoflavus RKJM-0023 (CP133227). The structure of acyl-surugamide A2 was elucidated using a combination of NMR spectroscopy, MS2 fragmentation analysis, and comparative analysis of the sur biosynthetic gene cluster. Acyl-surugamide A2 contains all eight core amino acids of surugamide A, with a modified N-ε-acetyl-L-lysine residue. Our study highlights the potential of marine Streptomyces strains to produce novel natural products with potential therapeutic applications. The structure of cyclic peptides can be solved using MS2 spectra and analysis of their biosynthetic gene clusters.
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Affiliation(s)
- Zacharie A. Maw
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (Z.A.M.)
| | - Bradley Haltli
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (Z.A.M.)
- Nautilus Biosciences, Croda Canada Limited, Charlottetown, PE C1A 4P3, Canada
| | - Jason J. Guo
- Department of Chemistry & Chemical Biology, Barnett Institute for Chemical and Biological Analysis, Northeastern University, Boston, MA 02115, USA
| | | | - Christopher Cartmell
- Department of Pharmacology, Comprehensive Center for Pain & Addiction, College of Medicine, University of Arizona, Tucson, AZ 85724, USA
| | - Russell G. Kerr
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (Z.A.M.)
- Nautilus Biosciences, Croda Canada Limited, Charlottetown, PE C1A 4P3, Canada
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
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LeClair MM, Maw ZA, Grunwald AL, Kelly JR, Haltli BA, Kerr RG, Cartmell C. Discovery of Levesquamide B through Global Natural Product Social Molecular Networking. Molecules 2022; 27:molecules27227794. [PMID: 36431895 PMCID: PMC9695545 DOI: 10.3390/molecules27227794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Levesquamide A is an isothiazolinone-containing anti-tubercular natural product isolated from Streptomyces sp. RKND-216. Through the use of Global Natural Product Social Molecular Networking (GNPS), additional members of the levesquamide family were identified (B-G). Levesquamide B is a glycosylated analogue, isolated and structurally elucidated via spectroscopical techniques along with the putative structures of levesquamide C and D. For masses relating to the additional three levesquamides (E-G), their complete structures remain ambiguous.
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Affiliation(s)
- Mary M. LeClair
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Zacharie A. Maw
- Department of Biomedical Sciences, Atlantic Veterinary College, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Alyssa L. Grunwald
- Nautilus Biosciences Croda, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Joshua R. Kelly
- Nautilus Biosciences Croda, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Bradley A. Haltli
- Department of Biomedical Sciences, Atlantic Veterinary College, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Nautilus Biosciences Croda, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Russell G. Kerr
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Department of Biomedical Sciences, Atlantic Veterinary College, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Nautilus Biosciences Croda, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Christopher Cartmell
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Antimicrobial Discovery Center, Department of Biology, Northeastern University, Boston, MA 02115, USA
- Correspondence: or
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