Archaeoglobus

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Archaeoglobus

The PIWI domain of an argonaute protein from A. fulgidus, bound to a short double-stranded RNA fragment and illustrating the base-pairing and aromatic stacking stabilization of the bound conformation.

Scientific classification

Domain:	Archaea
Phylum:	Euryarchaeota
Class:	Archaeoglobi
Order:	Archaeoglobales
Family:	Archaeoglobaceae
Genus:	Archaeoglobus

Species

A. fulgidus Stetter et al., 1988
A. lithotrophicus
A. profundus Burggraf et al., 1990
A. sp. NI85-A
A. sp. NS70-A
A. sp. NS-tSRB-2
A. sp. PM70-1
A. veneficus
uncultured Archaeoglobus sp.

Synonyms

Archaeoglobus Stetter 1988

In taxonomy, Archaeoglobus is a genus of the Archaeoglobaceae.^[1]

The genus Archaeoglobus is a hyperthermophilic member of the Euryarchaeota. It is composed of two species, A. fulgidus and A. profundus which were isolated from hydrothermal vents. Archaeoglobus can also be found in high-temperature oil fields where they may contribute to oil field souring. Optimal growth of these organisms occurs at approximately 83ºC. Metabolically, Archaeoglobus are sulfate-reducing Archaea, coupling to the reduction of sulfate (to sulfide) to the oxidation of many different organic carbon sources, including complex polymers. Archaeoglobus can also live chemolithoautotrophically by coupling the oxidation of thiosulfate to the reduction of hydrogen gas. Archaeoglobus are the only organisms other than the traditional sulfate-reducing bacteria capable of the reduction of sulfate. Intriguingly, the completion of the complete A. fulgidus genome sequence (Klenk et al., 1997) revealed the presence of a nearly complete set of genes for methanogenesis. The function of these genes in A. fulgidus remains unknown, although the lack of the enzyme methyl-CoM reductase does not allow for methanogenesis to occur by a mechanism similar to that found in other methanogens.

1 References
2 Further reading
3 External links

[edit] References

^ See the NCBI webpage on Archaeoglobus. Data extracted from the NCBI taxonomy resources. National Center for Biotechnology Information. Retrieved on 2007-03-19.

[edit] Further reading

[edit] Scientific journals

Klenk, H.-P, Clayton, R.A., Tomb, J.-F., White, O., Nelson, K.E., Ketchum, K.A., Dodson, R.J., Gwinn, M., Hickey, E.K., Peterson, J.D., Richardson, D.L., Kerlavage, A.R., Graham, D.E., Kyrpides, N.C., Fleischmann, R.D., Quackenbush, J., Lee, N.H., Sutton, G.G., Gill, S., Kirkness, E.F., Dougherty, B.A., McKenney, K., Adams, M.D., Loftus, B., Peterson, S., Reich, C.I., McNeil, L.K., Badger, J.H., Glodek, A., Zhou, L., Overbeek, R., Gocayne, J.D., Weidman, J.F., McDonald, L., Utterback, T., Cotton, M.D., Spriggs, T., Artiach, Kaine, B.P., Sykes, S.M., Sadow, P.W., D’Andrea, K.P., Bowman, C., Fujii, C., Garland, S.A., Mason, T.M., Olsen, G.J., Fraser, C.M., Smith, H.O., Woese, C.R. and Venter, J.C. (1997). "The complete genome sequence of the hyperthermophilic, sulphate-reducing archaeon Archaeoglobus fulgidus". Nature 390: 364-370. doi:10.1038/37052. [1]

Stetter, KO (1988). "Archaeoglobus fulgidus gen. nov., sp. nov. a new taxon of extremely thermophilic Archaebacteria". Syst. Appl. Microbiol. 10: 172–173.

[edit] Scientific books

Madigan, M.T. and Martinko, J.M. (2005). Brock Biology of Microorganisms, 11th Ed.. Pearson Prentice Hall.

Huber H, Stetter KO (2001). "Family I. Archaeoglobaceae fam. nov. Stetter 1989, 2216", in DR Boone and RW Castenholz, eds.: Bergey's Manual of Systematic Bacteriology Volume 1: The Archaea and the deeply branching and phototrophic Bacteria, 2nd ed., New York: Springer Verlag. ISBN 978-0387987712.

Stetter, KO (1989). "Group II. Archaeobacterial sulfate reducers. Order Archaeoglobales", in JT Staley, MP Bryant, N Pfennig, and JG Holt, eds.: Bergey's Manual of Systematic Bacteriology, Volume 3, 1st ed., Baltimore: The Williams & Wilkins Co..