| Title | Genome information of the cellulolytic soil actinobacterium Isoptericola dokdonensis DS-3 and comparative genomic analysis of the genus Isoptericola |
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| Author | Yurim Bae1, Sujin Lee1, Kitae Kim2, Hyun-Kwon Lee2, Soon-Kyeong Kwon1, and Jihyun F. Kim2,3* |
| Address | 1Division of Applied Life Science (BK21), Gyeongsang National University, Jinju 52828, Republic of Korea, 2Department of Systems Biology, Division of Life Sciences, Yonsei University, Seoul 03722, Republic of Korea, 3Strategic Initiative for Microbiomes in Agriculture and Food, Yonsei University, Seoul 03722, Republic of Korea |
| Bibliography | Journal of Microbiology, 59(11),1010-1018, 2021, |
| DOI | 10.1007/s12275-021-1452-6 |
| Key Words | actinobacteria, comparative genomics, Isoptericola, CAZyme, PacBio sequencing |
| Abstract | The actinobacterial group is regarded as a reservoir of biologically active natural products and hydrolytic enzymes with the potential for biomedical and industrial applications. Here, we present the complete genome sequence of Isoptericola dokdonensis DS-3 isolated from soil in Dokdo, small islets in the East Sea of Korea. This actinomycete harbors a large number of genes encoding carbohydrate-degrading enzymes, and its activity to degrade carboxymethyl cellulose into glucose was experimentally evaluated. Since the genus Isoptericola was proposed after reclassification based on phylogenetic analysis, strains of Isoptericola have been continuously isolated from diverse environments and the importance of this genus in the ecosystem has been suggested by recent culturomic or metagenomic studies. The phylogenic relationships of the genus tended to be closer among strains that had been isolated from similar habitats. By analyzing the properties of published genome sequences of seven defined species in the genus, a large number of genes for carbohydrate hydrolysis and utilization, as well as several biosynthetic gene clusters for secondary metabolites, were identified. Genomic information of I. dokdonensis DS-3 together with comparative analysis of the genomes of Isoptericola provides insights into understanding this actinobacterial group with a potential for industrial applications. |