“… Thermus thermophilus is an aerobic, thermophilic bacterium that grows optimally at around 70 to 75°C. Since the first isolation of this species from Mine Hot Spring in Japan in 1968 ( 1 , 2 ), many T. thermophilus strains have been isolated from various thermal areas worldwide ( 3 – 11 ). Among them, strains HB8 (type strain) and HB27 have been rigorously studied biochemically ( 12 , 13 ), structurally ( 14 , 15 ), and genetically ( 16 , 17 ).…”