Query: NC_012804:816961 Thermococcus gammatolerans EJ3, complete genome
Lineage: Thermococcus gammatolerans; Thermococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: Hyperthermophilic radioresistant marine archaeon. Thermococcus gammatolerans was isolated from hydrothermal vent chimneys located in the mid-Atlantic Ridge and Guyamas basin. When exposed to gamma radiation, this organism has a survival curve similar to Deinococcus radiodurans.
Subject: NC_015474:1849509 Pyrococcus sp. NA2 chromosome, complete genome
Lineage: Pyrococcus; Pyrococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: Pyrococcus has similar characteristics of other thermoautotrophican archaea such as Archaeoglobus, and Methanococcus in the respect that they are all thermophilic and anaerobic. Pyrococcus differs, however, because its optimal growth temperature is nearly 100 °C and dwells at a greater sea depth than the other archaea. Studying Pyrococcus helps give insight to possible mechanisms used to endure extreme environmental conditions like high temperatures and high pressure.