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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
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High impact information on Crenarchaeota

  • Three endonuclease structures are known in the Archaea: a homotetramer in some Euryarchaea, a homodimer in other Euryarchaea, and a heterotetramer in the Crenarchaeota [1].
  • We also find that a combined data set of EF-Tu and EF-G sequences favors placement of the eukaryotes within the Archaea, as the sister group to the Crenarchaeota [2].
  • Although many species of Crenarchaeota (one of the two recognized archaeal kingdoms sensu Woese [Woese, C. R., Kandler, O. & Wheelis, M. L. (1990) Proc. Natl. Acad. Sci. USA 87, 4576-4579]) have been isolated, they constitute a relatively tight-knit cluster of lineages in phylogenetic analyses of rRNA sequences [3].
  • H. volcanii small subunit rRNA appears to reflect the phenotypically low modification level in the Crenarchaeota kingdom and is the only cytoplasmic small subunit rRNA shown to lack pseudouridine [4].
  • The extremely thermostable NAD-dependent glutamate dehydrogenase (NAD-GluDH) from Pyrobaculum islandicum, a member of the Crenarchaeota, was crystallized, and its 3D structure has been determined by X-ray diffraction methods [5].

Biological context of Crenarchaeota


Associations of Crenarchaeota with chemical compounds


Gene context of Crenarchaeota

  • Other clones exhibited intermediate phylogenetic affiliation between soil clones and MGI in the Crenarchaeota [10].
  • Phylogenetic analyses of the rRNA genes and of several protein encoding genes (e.g. DNA polymerase, FixAB, glycosyl transferase) confirmed the specific affiliation of the genomic fragment with the non-thermophilic clade of the crenarchaeota [11].


  1. Coevolution of tRNA intron motifs and tRNA endonuclease architecture in Archaea. Tocchini-Valentini, G.D., Fruscoloni, P., Tocchini-Valentini, G.P. Proc. Natl. Acad. Sci. U.S.A. (2005) [Pubmed]
  2. The root of the universal tree and the origin of eukaryotes based on elongation factor phylogeny. Baldauf, S.L., Palmer, J.D., Doolittle, W.F. Proc. Natl. Acad. Sci. U.S.A. (1996) [Pubmed]
  3. Remarkable archaeal diversity detected in a Yellowstone National Park hot spring environment. Barns, S.M., Fundyga, R.E., Jeffries, M.W., Pace, N.R. Proc. Natl. Acad. Sci. U.S.A. (1994) [Pubmed]
  4. Identities and phylogenetic comparisons of posttranscriptional modifications in 16 S ribosomal RNA from Haloferax volcanii. Kowalak, J.A., Bruenger, E., Crain, P.F., McCloskey, J.A. J. Biol. Chem. (2000) [Pubmed]
  5. The first crystal structure of hyperthermostable NAD-dependent glutamate dehydrogenase from Pyrobaculum islandicum. Bhuiya, M.W., Sakuraba, H., Ohshima, T., Imagawa, T., Katunuma, N., Tsuge, H. J. Mol. Biol. (2005) [Pubmed]
  6. Crenarchaeol: the characteristic core glycerol dibiphytanyl glycerol tetraether membrane lipid of cosmopolitan pelagic crenarchaeota. Damsté, J.S., Schouten, S., Hopmans, E.C., van Duin, A.C., Geenevasen, J.A. J. Lipid Res. (2002) [Pubmed]
  7. Genetic and functional properties of uncultivated thermophilic crenarchaeotes from a subsurface gold mine as revealed by analysis of genome fragments. Nunoura, T., Hirayama, H., Takami, H., Oida, H., Nishi, S., Shimamura, S., Suzuki, Y., Inagaki, F., Takai, K., Nealson, K.H., Horikoshi, K. Environ. Microbiol. (2005) [Pubmed]
  8. Novel genes for nitrite reductase and Amo-related proteins indicate a role of uncultivated mesophilic crenarchaeota in nitrogen cycling. Treusch, A.H., Leininger, S., Kletzin, A., Schuster, S.C., Klenk, H.P., Schleper, C. Environ. Microbiol. (2005) [Pubmed]
  9. Presence of acetyl coenzyme A (CoA) carboxylase and propionyl-CoA carboxylase in autotrophic Crenarchaeota and indication for operation of a 3-hydroxypropionate cycle in autotrophic carbon fixation. Menendez, C., Bauer, Z., Huber, H., Gad'on, N., Stetter, K.O., Fuchs, G. J. Bacteriol. (1999) [Pubmed]
  10. Archaeal diversity in waters from deep South African gold mines. Takai, K., Moser, D.P., DeFlaun, M., Onstott, T.C., Fredrickson, J.K. Appl. Environ. Microbiol. (2001) [Pubmed]
  11. First insight into the genome of an uncultivated crenarchaeote from soil. Quaiser, A., Ochsenreiter, T., Klenk, H.P., Kletzin, A., Treusch, A.H., Meurer, G., Eck, J., Sensen, C.W., Schleper, C. Environ. Microbiol. (2002) [Pubmed]
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