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Topic: Euryarchaeota

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	Untitled Document (Site not responding. Last check: 2007-10-22)
		Euryarchaeota is a physiologically diverse kingdom in the domain Archaea (2,4).
		Euryarchaeota are often called extremophiles, as they are able to live in extreme environments in places as diverse as the rumen of a cow, termite guts, the Dead Sea, sewage sludge and the hot pots in Yellowstone (3).
		This is a diverse group of organisms that live in extremely saline or salty environments, ie originally salt lakes but now also on the surfaces of highly salted foods such as fish and meats.
	www.plu.edu /~robsonja/Euryarchaeotaj.htm (315 words)

	Learn more about Archaea in the online encyclopedia. (Site not responding. Last check: 2007-10-22)
		The Korarchaeota have been described from DNA samples, but the actual organisms remain unknown, and the Nanoarchaeota are known from a single species discovered in 2002, Nanoarchaeum equitum.
		Some work suggests that the Euryarchaeota may be closer to the eukaryotes than the Crenarchaeota, in which case the domain Archaea would be abandoned.
		Microbiologists who consider the Bacteria to be paraphyletic also argue that the Archaea are not sufficiently different to be considered a separate group.
	www.onlineencyclopedia.org /a/ar/archaea.html (618 words)

	Euryarchaeota Terms and Definitions at www.MedicalGlossary.org
		They occur ubiquitously in nature where the salt concentration is high, and are chemoorganotrophic, using amino acids or carbohydrates as a carbon source.
		They are nonmotile, do not catabolize carbohydrates, proteinaceous material, or organic compounds other than formate or carbon monoxide, and are widely distributed in nature.
		Its organisms are nonmotile or motile, with cells occurring as coccoid bodies, pseudosarcina, or rods.
	www.medicalglossary.org /archaea_euryarchaeota_definitions.html (334 words)

	DISCUSSION
		The novel Archaea found in soil are phylogenetically distant from the Euryarchaeota, and form a cluster distinct from any other cultured Crenarchaeota.
		Hybridization with the Euryarchaeota specific probes, on the other hand, detected as many cells as the general Archaea probe.
		As many of the sequences were only distantly related to any of the main metabolic subgroups of Euryarchaeota (namely the methanogens or halophiles), their metabolic properties and role in the environment could not be inferred.
	ethesis.helsinki.fi /julkaisut/maa/skemi/vk/jurgens/5_discussion.html (1021 words)

	Archaea - Wikipedia, the free encyclopedia
		Of note, the halobacteria can use light to produce ATP, although no Archaea conduct photosynthesis with an electron transport chain, as occurs in other groups.
		Archaea are divided into two main groups based on rRNA trees, the Euryarchaeota and Crenarchaeota.
		Two other groups have been tentatively created for certain environmental samples and the peculiar species Nanoarchaeum equitans, discovered in 2002 by Karl Stetter, but their affinities are uncertain.
	en.wikipedia.org /wiki/Archaea (914 words)

	RESULTS
		Major lineages (phyla) on Crenarchaeota and Euryarchaeota trees are shown as wedges with horizontal dimensions reflecting the known degree of divergence within that lineage.
		Eight of the sequences form a tight VAL I lineage inside the cluster which also includes sequences previously detected in lake sediments (Hershberger et al., 1996; Schleper et al., 1997a), rice roots and soil (Grosskopf et al., 1998b), and an anaerobic digestor (Godon et al., 1997) (Fig.
		Rice cluster V, which was closest to the three VAL III clade sequences, is believed to comprise of non-methanogenic anaerobic Archaea (Grosskopf et al., 1998b).
	ethesis.helsinki.fi /julkaisut/maa/skemi/vk/jurgens/4_results.html (2886 words)

	ipedia.com: Archaea Article (Site not responding. Last check: 2007-10-22)
		Arachaea also include the methanogens in their number, the only organisms known to produce methane, which are one of the several possible explanations for the recently discovered presence of methane on Mars.
		The Korarchaeota have been described from RNA samples, but the actual organisms remain unknown, and the Nanoarchaeota are known from a single species discovered in 2002, Nanoarchaeum equitum.
		The Archaea appear to be close relatives of the eukaryotes, and some work has suggested that the Euryarchaeota may be closer to them than the Crenarchaeota, though more recent studies support their monophyly.
	www.ipedia.com /archaea.html (720 words)

	Encyclopedia: Euryarchaeota (Site not responding. Last check: 2007-10-22)
		Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms.
		Phyla / Classes Phylum Crenarchaeota Phylum Euryarchaeota Halobacteria Methanobacteria Methanococci Methanopyri Archaeoglobi Thermoplasmata Thermococci Phylum Korarchaeota Phylum Nanoarchaeota The Archaea are a major group of prokaryotes.
		Genera Haloarcula Halobacterium Halobaculum Halococcus Haloferax Halogeometricum Halorubrum Haloterrigena Natrialba Natrinema Natronobacterium Natronococcus Natronomonas Natronorubrum The halobacteria are a family of archaea, found in water saturated or nearly saturated with salt.
	www.nationmaster.com /encyclopedia/Euryarchaeota (305 words)

	EURYARCHAEOTA
		I have followed the relative placement of Garrity et al (2001) and moved them into the Kingdom Euryarchaeota together with the methanogens and extreme halophiles.
		I separated Thermoplasma and its relatives from other thermophiles because they are only mildly thermophilic, they do not contain sterols in their membranes, and they do contain histones in association with their chromosome.
		This system follows that of Garrity et al (2001 and 2003) who place the thermoplasmas in the Euryarchaeota as a taxon equal to the methanogens and halophiles.
	comenius.susqu.edu /bi/202/ARCHAEA/EURYARCHAEOTA/thermoplasmobacteria.htm (256 words)

	Euryarchaeota Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-22)
		Looking For euryarchaeota - Find euryarchaeota and more at Lycos Search.
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	www.karr.net /search/encyclopedia/Euryarchaeota (236 words)

	cren.html (Site not responding. Last check: 2007-10-22)
		Phylogenetic diveristy in the domain Archaea is subdivided into two main lineages: Euryarchaeota and Crenarcheaota.
		The traditional view of the diversity of Archaea has been that the kingdom Euryarchaeota is a physiologically variable group including halophiles, thermophiles and methanogens.
		On the other hand, diversity in the the kingdom Crenarchaeota has been thought to be more homogenous, consisting exclusively of sulfur-dependent, extreme thermophiles (1) This view, however, has been based primarily on cultivation studies and has subsequently provided a biased picture of crenarchaeal diversity due to the difficulty of cultivating most organisms (2,3).
	pacelab.colorado.edu /Publications/163/cren.html (313 words)

	Phylum Archaea
		"According to rRNA trees, there are two groups within the Archaea: the kingdoms Crenarchaeota and Euryarchaeota.
		The Euryarchaeota span a broader ecological range and include hyperthermophiles (e.g.
		Based on different reanalyses of rRNA and elongation factor trees, Lake and co-workers have long advocated that the Archaea are a paraphyletic rather than monophyletic group where the kingdom Crenarchaeota is more closely related to eukaryotes than is the kingdom Euryarchaeota.
	www.peripatus.gen.nz /Taxa/Archaea.html (475 words)

	The Euryarchaeota: nature's medium for engineering of single-stranded DNA binding proteins -- Robbins et al., ...
		While the polypeptide serving this function in bacteria contains one OB fold, the eukaryotic functional homolog comprises a complex of three proteins, each harboring at least one OB fold.
		Here, we show that unlike these groups of organisms, the Euryarchaeota has exploited the potential in the OB fold to re-invent single-stranded DNA binding proteins many times.
		However, the most common form is a protein with two OB folds and one zinc-finger domain.
	www.jbc.org /cgi/content/short/M412870200v1 (373 words)

	Archaea (Site not responding. Last check: 2007-10-22)
		Phylum Nanoarchaeota The Archaea are a major group of prokaryotes.
		For instance the halobacteria can use light to produce ATP, although none conduct photosynthesis in the usual sense.
		Two other groups have been tentatively created for certain environmental samples and the peculiar species Nanoarchaeum equitum, but their affinities are uncertain.
	33beat.com /Archaea.html (757 words)

	Axial Differences in Community Structure of Crenarchaeota and Euryarchaeota in the Highly Compartmentalized Gut of the ...
		Axial Differences in Community Structure of Crenarchaeota and Euryarchaeota in the Highly Compartmentalized Gut of the Soil-Feeding Termite Cubitermes orthognathus -- Friedrich et al.
		Axial Differences in Community Structure of Crenarchaeota and Euryarchaeota in the Highly Compartmentalized Gut of the Soil-Feeding Termite Cubitermes orthognathus
		The tree was rooted with SSU rDNA sequences of Aquifex pyrophilus and Thermotoga maritima, and sequences of members of Euryarchaeota and Korarchaeota were used as additional outgroup references.
	aem.asm.org /cgi/content/full/67/10/4880 (5766 words)

	Phylogenetic Composition of Arctic Ocean Archaeal Assemblages and Comparison with Antarctic Assemblages -- Bano et al. ...
		Number and percent of Crenarchaeota and Euryarchaeota found in clone libraries constructed from samples collected during the SCICEX 95, 96, and 97 cruises
		I Crenarchaeota) or 512 to 937 (group II Euryarchaeota).
		(B) Marine group II and IV Euryarchaeota (positions 512 to 937); clone SB95-57 is used as an outgroup.
	aem.asm.org /cgi/content/full/70/2/781 (4614 words)

	Methanosarcinales Terms and Definitions at www.MedicalGlossary.org
		Home > Organisms > Archaea > Euryarchaeota > Methanosarcinales Terms and Definitions
		An order of anaerobic methanogens in the kingdom EURYARCHAEOTA.
		Methanosarcinaceae - A family of anaerobic METHANOSARCINALES whose cells are mesophilic or thermophilic and appear as irregular spheroid bodies or sheathed rods.
	www.medicalglossary.org /euryarchaeota_methanosarcinales_definitions.html (160 words)

	Thermococcales Terms and Definitions at www.MedicalGlossary.org
		Home > Organisms > Archaea > Euryarchaeota > Thermococcales Terms and Definitions
		An order of strictly anaerobic, thermophilic archaea, in the kingdom EURYARCHAEOTA.
		Thermococcaceae - A family of anaerobic THERMOCOCCALES found in hot environments.
	www.medicalglossary.org /euryarchaeota_thermococcales_definitions.html (137 words)

	[No title]
		AC L27236; DT 04-JAN-1994 DE 5S rRNA OS Halobacterium distributum OC Prokaryota; Archaea; Euryarchaeota; Halobacteriales RN [1] RA Zvyagintseva I.S., Boulygina E.S., Kudryashova E.B.; RT Hemotaxonomic and genotaxonomic status of Halobacterium RT distributum (emend); RL Unpublished.
		OS Halobacterium distributum (=Halorubrum d.) #Strain VKM B-1916D OC Prokaryota; Archaea; Euryarchaeota; Halobacteriales RN [1] RP 1-122 RA Zvyagintseva I.S., Boulygina E.S., Kudryashova E.B.; RT Hemotaxonomic and genotaxonomic status of Halobacterium RT distributum (emend); RL Unpublished.
		OS Halobacterium distributum (=Halorubrum d.) #Strain VKM B-1954 OC Prokaryota; Archaea; Euryarchaeota; Halobacteriales RN [1] RA Zvyagintseva I.S., Boulygina E.S., Kudryashova E.B.; RT Hemotaxonomic and genotaxonomic status of Halobacterium RT distributum (emend); RL Unpublished.
	www.man.poznan.pl /5SData/archaea/euryarchaeota/halobacteriales/halobacterium.distributum (434 words)

	A heterodimeric DNA polymerase: Evidence that members of Euryarchaeota possess a distinct DNA polymerase -- Cann et al. ...
		A heterodimeric DNA polymerase: Evidence that members of Euryarchaeota possess a distinct DNA polymerase -- Cann et al.
		We describe here a DNA polymerase family highly conserved in Euryarchaeota, a subdomain of Archaea.
		In this report, we show that DP1 and DP2, which constitute a distinct DNA polymerase, are highly conserved in Euryarchaeota,
	www.pnas.org /cgi/content/full/95/24/14250 (3946 words)

	Archaeal Phylogeny Based on Ribosomal Proteins -- Matte-Tailliez et al. 19 (5): 631 -- Molecular Biology and Evolution
		The trees were rooted between Crenarchaeota and Euryarchaeota.
		S indicates the branch in which we assumed that the split event leading to RPOB' and RPOB'' genes occurred, and F the branch in which we assumed that RPOB' and RPOB'' genes fused.
		Makarova K. Aravind, M. Galperin, N. Grishin, R. Tatusov, Y. Wolf, E. Koonin, 1999 Comparative genomics of the Archaea (Euryarchaeota): evolution of conserved protein families, the stable core, and the variable shell Genome Res 9:608-628
	mbe.oxfordjournals.org /cgi/content/full/19/5/631 (5255 words)

	Cloning and Characterization of a Family B DNA Polymerase from the Hyperthermophilic Crenarchaeon Pyrobaculum ...
		and Aeropyrum pernix, and several members of the kingdom Euryarchaeota.
		all archaeal DNA polymerases used in PCR are derived from Euryarchaeota.
		A heterodimeric DNA polymerase: evidence that members of euryarchaeota possess a distinct DNA polymerase.
	jb.asm.org /cgi/content/full/182/3/655 (5176 words)

	[No title]
		Methanogen Research Group in the Department of Microbiology and Immunology at Queen''s University in Kingston, Canada.
		omparative genomics of the archaea (Euryarchaeota): Evolution of conserved protein families, the stable core, and the variable shell.
		Genetic diversity of archaea in deep-sea hydrothermal vent environments.
	ag.arizona.edu /ENTO/tree/archaea/!Archaea.nex (423 words)

	Comparative Genomics of the Archaea (Euryarchaeota): Evolution of Conserved Protein Families, the Stable Core, and the ...
		delineation of the core gene set that is conserved in euryarchaeota.
		Comparative analysis of the four available genomes of euryarchaeota, aided by the availability of a number of complete bacterial
		The dhnA gene of Escherichia coli encodes a class I fructose bisphosphate aldolase.
	www.genome.org /cgi/content/full/9/7/608 (7146 words)

	Invariant Asp-1122 and Asp-1124 Are Essential Residues for Polymerization Catalysis of Family D DNA Polymerase from ...
		Family D DNA polymerase has recently been found in the Euryarchaeota subdomain of Archaea.
		is a new family recently found in the Euryarchaeota subdomain
		The sequences are from eight Euryarchaeota species, P.
	www.jbc.org /cgi/content/full/276/29/27376 (5003 words)

	Archaeal DNA Replication: Identifying the Pieces to Solve a Puzzle -- Cann and Ishino 152 (4): 1249 -- Genetics
		this DNA polymerase, are highly conserved in the Euryarchaeota.
		Pol BII, and the one that is common with Euryarchaeota should
		Amino acid sequence alignment showing seven conserved regions of RFC subunits, including the putative homologs from Euryarchaeota.
	www.genetics.org /cgi/content/full/152/4/1249 (6192 words)

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