Sakai Hiroyuki D, Kurosawa Norio
Department of Science and Engineering for Sustainable Innovation, Faculty of Science and Engineering, Soka University, 1-236 Tangi-machi, Hachioji, Tokyo, 192-8577, Japan.
Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo, 102-8471, Japan.
BMC Res Notes. 2019 Jul 22;12(1):444. doi: 10.1186/s13104-019-4488-5.
Sulfodiicoccus acidiphilus HS-1 is the type species of the genus Sulfodiicoccus, a thermoacidophilic archaeon belonging to the order Sulfolobales (class Thermoprotei; phylum Crenarchaeota). While S. acidiphilus HS-1 shares many common physiological and phenotypic features with other Sulfolobales species, the similarities in their 16S rRNA gene sequences are less than 89%. In order to know the genomic features of S. acidiphilus HS-1 in the order Sulfolobales, we determined and characterized the genome of this strain.
The circular genome of S. acidiphilus HS-1 is comprised of 2353,189 bp with a G+C content of 51.15 mol%. A total of 2459 genes were predicted, including 2411 protein coding and 48 RNA genes. The notable genomic features of S. acidiphilus HS-1 in Sulfolobales species are the absence of genes for polB3 and the autotrophic carbon fixation pathway, and the distribution pattern of essential genes and sequences related to genomic replication initiation. These insights contribute to an understanding of archaeal genomic diversity and evolution.
嗜酸硫双球菌HS-1是硫双球菌属的模式种，属于硫化叶菌目（热变形菌纲；泉古菌门）的嗜热嗜酸古菌。虽然嗜酸硫双球菌HS-1与其他硫化叶菌目物种具有许多共同的生理和表型特征，但其16S rRNA基因序列的相似性低于89%。为了了解嗜酸硫双球菌HS-1在硫化叶菌目中的基因组特征，我们测定并表征了该菌株的基因组。
嗜酸硫双球菌HS-1的环状基因组由2353189 bp组成，G+C含量为51.15 mol%。共预测到2459个基因，包括2411个蛋白质编码基因和48个RNA基因。嗜酸硫双球菌HS-1在硫化叶菌目物种中的显著基因组特征是缺乏polB3基因和自养碳固定途径，以及与基因组复制起始相关的必需基因和序列的分布模式。这些见解有助于理解古菌基因组的多样性和进化。
