Desulfurococcus kamchatkensis 1221n
| Names | Desulfurococcus kamchatkensis 1221n |
|---|---|
| Accession numbers | NC_011766 |
| Background | Desulfurococcus kamchatkensis (strain 1221n / DSM 18924) is an anaerobic organotrophic hyperthermophilic crenarchaeon isolated from a terrestrial hot spring of Uzon Caldera (Kamchatka Peninsula, Russia). The organism is an obligately anaerobic, heterotrophic archaeon able to grow at temperatures between 65 and 87 degrees Celsius, with the optimum at 85 degrees Celsius. Its cells are nonmotile regular cocci of 0.6 to 1 um in diameter. D. kamchatkensis utilizes a wide range of proteinaceous substrates, including alpha-keratin, albumin, and gelatin, as carbon and energy sources. It is also able to ferment some monosugars (hexoses), disaccharides, and oligosaccharides. Elemental sulfur is not essential but stimulates growth. Products of glucose fermentation in the absence of sulfur include CO2, H2, acetate, and a minor amount of propionate. In the presence of elemental sulfur, H2S is formed instead of H2. The genome possesses diverse thermostable hydrolases that could find application in different fields of industry. The ability to form molecular hydrogen as the end product of biopolymer degradation could be used in the process of biofuel production. (adapted from PMID: 19114480). (HAMAP: DESK1) |
| Taxonomy | |
| Kingdom: | Archaea |
| Phylum: | Crenarchaeota |
| Class: | Thermoprotei |
| Order: | Desulfurococcales |
| Family: | Desulfurococcaceae |
| Genus: | Desulfurococcus |
| Species: | kamchatkensis |
| Strain | 1221n |
| Complete | Yes |
| Sequencing centre | (18-AUG-2008) Centre 'Bioengineering' RAS, Prosp. 60-let Oktiabria, bld. 7-1, Moscow 117312, Russia (24-DEC-2008) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA |
| Sequencing quality | Level 6: Finished |
| Sequencing depth | NA |
| Sequencing method | Sanger, 454-GS-FLX |
| Isolation site | "Sediments of Treshchinny Spring (Uzon Caldera, Kamchatka, Russia)" |
| Isolation country | Russia |
| Number of replicons | 1 |
| Gram staining properties | NA |
| Shape | Cocci |
| Mobility | No |
| Flagellar presence | Yes |
| Number of membranes | 1 |
| Oxygen requirements | Anaerobic |
| Optimal temperature | 82.0 |
| Temperature range | Hyperthermophilic |
| Habitat | Aquatic |
| Biotic relationship | Free living |
| Host name | NA |
| Cell arrangement | NA |
| Sporulation | NA |
| Metabolism | NA |
| Energy source | Organotroph |
| Diseases | NA |
| Pathogenicity | No |