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Diversity of Nonribosomal Peptide Synthetase Genes in the Anticancer- Producing Actinomycetes Isolated from Marine Sediment in Indonesia
Article from Journal - ilmiah nasional - terakreditasi DIKTI
Indonesian Journal of Biotechnology vol. 20 no. 1 (Jun. 2015)
non-ribosomal peptide synthetase genes diversity
anticancer drugs development
Marine actinomycetes is a group of bacteria that is highly potential in producing novel bioactive compound. It has unique characteristics and is different from other terrestrial ones. Extreme environmental condition is suspected to lead marine actinomycetes produce different types of bioactive compound found previously. The aim of this study was to explore the presence and diversity of NRPS genes in 14 anticancer-producing actinomycetes isolated from marine sediment in Indonesia. PCR amplifi cation and restriction fragment analysis of NRPS genes with HaeIII from 14 marine actinomycetes were done to assess the diversity of NRPS genes. Genome mining of one species of marine actinomycetes (strain GMY01) also was employed towards this goal. The result showed that NRPS gene sequence diversity in 14 marine actinomycetes could be divided into 4 groups based on NRPS gene restriction patterns. Analysis of 16S rRNA gene sequences of representatives from each group showed that all isolates belong to genus of Streptomyces. Genome mining result showed that strain GMY01 harboring 10 different NRPS gene clusters that encode secondary metabolites, as pure NRPS or hybrid between NRPS and other compounds. These results indicated that marine actinomycetes having a high potential to be developed as source of anticancer drugs development.
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