Ignicoccus hospitalis KIN4/I
Names | Ignicoccus hospitalis KIN4/I |
---|---|
Accession numbers | NC_009776 |
Background | An anaerobic chemolithoautotrophic and hyperthermophilic archaeon, Ignicoccus hospitalis was isolated from a submarine hydrothermal system off the coast of Iceland. Optimal growth occurs at 90 degrees C utilizing molecular hydrogen, elemental sulfur, and carbon dioxide as the energy substrate, the electron acceptor, and the carbon source, respectively. It is the obligatory host of Nanoarchaeum equitans; up to a dozen N.equitans can be found on the surface of I.hospitalis without doing any apparent harm to the host. Ignicoccus species are unique among the Archaea in having two cell membranes; together with the cytoplasmic membrane, it encloses a huge periplasmic space, in which membrane-bound vesicles are found. I.hospitalis at 1.3 Mb has one of the smallest genomes among free-living bacteria and archaea, and shows signs of gene exchange with N.equitans as well as gene acquisition from Euryarchaeota and bacteria (adapted from PMID 19000309). (HAMAP: IGNH4) |
Taxonomy | |
Kingdom: | Archaea |
Phylum: | Crenarchaeota |
Class: | Thermoprotei |
Order: | Desulfurococcales |
Family: | Desulfurococcaceae |
Genus: | Ignicoccus |
Species: | hospitalis |
Strain | Kin4/I |
Complete | Yes |
Sequencing centre | (06-SEP-2007) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA (27-AUG-2007) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA |
Sequencing quality | Level 6: Finished |
Sequencing depth | NA |
Sequencing method | Sanger |
Isolation site | "Shallow marine hydrothermal system of the Kolbeinsey Ridge, north of Iceland" |
Isolation country | Iceland |
Number of replicons | 1 |
Gram staining properties | Negative |
Shape | Cocci |
Mobility | No |
Flagellar presence | Yes |
Number of membranes | 2 |
Oxygen requirements | Anaerobic |
Optimal temperature | NA |
Temperature range | Hyperthermophilic |
Habitat | Aquatic |
Biotic relationship | Symbiotic |
Host name | NA |
Cell arrangement | Pairs, Singles |
Sporulation | Nonsporulating |
Metabolism | NA |
Energy source | Chemolithoautotroph |
Diseases | NA |
Pathogenicity | No |
Pyrimidine metabolism
Valine, leucine and isoleucine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
Streptomycin biosynthesis
C5-Branched dibasic acid metabolism
Riboflavin metabolism
Pantothenate and CoA biosynthesis
Aminoacyl-tRNA biosynthesis
Valine, leucine and isoleucine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
Streptomycin biosynthesis
C5-Branched dibasic acid metabolism
Riboflavin metabolism
Pantothenate and CoA biosynthesis
Aminoacyl-tRNA biosynthesis