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Overview

StatusReference proteome
Proteins1,434
Proteome IDiUP000000262
Taxonomy453591 - Ignicoccus hospitalis (strain KIN4/I / DSM 18386 / JCM 14125)
StrainKIN4/I / DSM 18386 / JCM 14125
Last modifiedFebruary 27, 2018
Genome assembly and annotationi GCA_000017945.1 from ENA/EMBL

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 Celsius 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; the outer and cytoplasmic membrane enclose a huge periplasmic space, in which membrane-bound vesicles are found. It is the outer membrane that is energized, with ATP synthesis occurring in the periplasm (PMID 20133662). 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).

Componentsi

DownloadView all proteins
Component nameGenome Accession(s)
Proteins
Chromosome1434

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