Being obtained from a thermophile organism, they are unusually heat resistant proteins. It was isolated from the thermophile "Thermococcus litoralis". It is an anaerobic, heterotrophic thermophile with type strain SSM1 (=JCM 11476 =DSM 14783). "Hydrogenobacter thermophilus" is a straight rod (bacillus) bacterium and an extreme thermophile. The record-setting thermophile, "Methanopyrus kandlerii", was isolated from a hydrothermal vent. "T. lanuginosus" is classified as a thermophile, and experiences rapid growth at high temperatures. "Thermophile" is derived from the ("thermotita"), meaning heat, and ("philia"), love.