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Genome features and secondary metabolite potential of the marine symbiont Streptomyces sp. RS2

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Abstract

Streptomyces sp. RS2 was isolated from an unidentified sponge collected around Randayan Island, Indonesia. The genome of Streptomyces sp. RS2 consists of a linear chromosome of 9,391,717 base pairs with 71.9% of G + C content, 8270 protein-coding genes, as well as 18 rRNA and 85 tRNA loci. Twenty-eight putative secondary metabolites biosynthetic gene clusters (BGCs) were identified in the genome sequence. Nine of them have 100% similarity to BGCs for albaflavenone, α-lipomycin, coelibactin, coelichelin, ectoine, geosmin, germicidin, hopene, and lanthionine (SapB). The remaining 19 BGCs have low (< 50%) or moderate (50–80%) similarity to other known secondary metabolite BGCs. Biological activity assays of extracts from 21 different cultures of the RS2 strain showed that SCB ASW was the best medium for the production of antimicrobial and cytotoxic compounds. Streptomyces sp. RS2 has great potential to be a producer of novel secondary metabolites, particularly those with antimicrobial and antitumor activities.

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Data availability

The complete genome sequence of Streptomyces sp. RS2 has been deposited in the GenBank database under the accession number NZ_JAPCIE000000000.

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Funding

This research was funded by the Directorate of Research, Technology and Community Service; Directorate General of Higher Education, Research and Technology; Ministry of Education, Culture, Research and Technology with a research scheme: National Competitive Basic Research (Penelitian Dasar Kompetitif Nasional) with contract number 147/E5/PG/2022, date 10 Mei 2022. Work at Oregon State University was funded by the OSU College of Pharmacy Faculty Development Funds to TM. We thank the Department of Botany and Plant Pathology for supporting the computing infrastructure.

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RN was involved in research design, processing, interpretation of the experimental data, and writing the manuscript. TM contributed to research design and revising the manuscript. AW was involved in sequencing, assembly and revising the manuscript. JC contributed to revising the manuscript. Ri, Ru, AS, PA were involved in cultivation, extraction and bioassays. SA contributed to annotation of the genome. All authors read and approved the final manuscript.

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Correspondence to Risa Nofiani.

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The authors declare that there are no conflicts of interest.

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Communicated by Yusuf Akhter.

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Nofiani, R., Rudiyansyah, Ardiningsih, P. et al. Genome features and secondary metabolite potential of the marine symbiont Streptomyces sp. RS2. Arch Microbiol 205, 244 (2023). https://doi.org/10.1007/s00203-023-03556-2

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  • DOI: https://doi.org/10.1007/s00203-023-03556-2

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