Metabolic versatility and indigenous origin of the archaeon Thermococcus sibiricus, isolated from a siberian oil reservoir, as revealed by genome analysis.

ABSTRACT: Thermococcus species are widely distributed in terrestrial and marine hydrothermal areas, as well as in deep subsurface oil reservoirs. Thermococcus sibiricus is a hyperthermophilic anaerobic archaeon isolated from a well of the never flooded oil-bearing Jurassic horizon of a high-temperature oil reservoir. To obtain insight into the genome of an archaeon inhabiting the oil reservoir, we have determined and annotated the complete 1,845,800-base genome of T. sibiricus. A total of 2,061 protein-coding genes have been identified, 387 of which are absent in other members of the order Thermococcales. Physiological features and genomic data reveal numerous hydrolytic enzymes (e.g., cellulolytic enzymes, agarase, laminarinase, and lipases) and metabolic pathways, support the proposal of the indig

SUBMITTER: Mardanov AV 

PROVIDER: S-EPMC2704819 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature