Aerobic carbon monoxide oxidation in the course of growth of a hyperthermophilic archaeon, Sulfolobus sp. ETSY
| Autor: | N. A. Chernyh, E. Yu. Lun’kova, E. A. Taranov, A. V. Lebedinskii, T. G. Sokolova, Nadezhda A. Kostrikina, Michail M. Yakimov, E. A. Bonch-Osmolovskaya |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
biology Phylogenetic tree ved/biology Chemistry 030106 microbiology Sulfolobus solfataricus ved/biology.organism_classification_rank.species biology.organism_classification Applied Microbiology and Biotechnology Microbiology Hyperthermophile Sulfolobus 03 medical and health sciences Biochemistry Gene cluster Gene Bacteria Archaea |
| Zdroj: | Microbiology. 86:539-548 |
| ISSN: | 1608-3237 0026-2617 |
| Popis: | An aerobic hyperthermophilic CO-oxidizing archaeon, Sulfolobus sp. strain ETSY, was isolated and characterized. Presently, it is the only known representative of both hyperthermophiles and Archaea that is capable of aerobic oxidation of CO, a gas of global importance for atmospheric chemistry and of local importance as one of the substrates for the microbial communities of hydrothermal vents. In the genome of Sulfolobus sp. ETSY we found genetic determinants of aerobic CO oxidation: a coxFMSLDE gene cluster and two separately located coxG genes. We also found such gene clusters in the genomes of certain strains of Sulfolobus islandicus and Sulfolobus solfataricus. On the phylogenetic tree of large subunits of aerobic CO-dehydrogenases (CoxLs), these proteins of Sulfolobus representatives formed a compact cluster within one of the branches formed by bacterial form I CoxLs. Thus we argue that the ability to oxidize CO aerobically was acquired by Sulfolobus ancestor from Bacteria relatively late in the evolution, presumably after the formation of the atmosphere with a high oxygen content. |
| Databáze: | OpenAIRE |
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