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Journal articles on the topic 'Crenarchaea'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Čuboňová, L'ubomíra, Kathleen Sandman, Steven J. Hallam, Edward F. DeLong, and John N. Reeve. "Histones in Crenarchaea." Journal of Bacteriology 187, no. 15 (2005): 5482–85. http://dx.doi.org/10.1128/jb.187.15.5482-5485.2005.

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ABSTRACT Archaeal histone-encoding genes have been identified in marine Crenarchaea. The protein encoded by a representative of these genes, synthesized in vitro and expressed in Escherichia coli, binds DNA and forms complexes with properties typical of an archaeal histone. The discovery of histones in Crenarchaea supports the argument that histones evolved before the divergence of Archaea and Eukarya.
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2

Driessen, Rosalie P. C., and Remus Th Dame. "Nucleoid-associated proteins in Crenarchaea." Biochemical Society Transactions 39, no. 1 (2011): 116–21. http://dx.doi.org/10.1042/bst0390116.

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Architectural proteins play an important role in compacting and organizing the chromosomal DNA in all three kingdoms of life (Eukarya, Bacteria and Archaea). These proteins are generally not conserved at the amino acid sequence level, but the mechanisms by which they modulate the genome do seem to be functionally conserved across kingdoms. On a generic level, architectural proteins can be classified based on their structural effect as DNA benders, DNA bridgers or DNA wrappers. Although chromatin organization in archaea has not been studied extensively, quite a number of architectural proteins
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3

Prangishvili, David, and Roger A. Garrett. "Viruses of hyperthermophilic Crenarchaea." Trends in Microbiology 13, no. 11 (2005): 535–42. http://dx.doi.org/10.1016/j.tim.2005.08.013.

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4

Das, Smarajit, Sanga Mitra, Satyabrata Sahoo, and Jayprokas Chakrabarti. "Viral/plasmid captures in Crenarchaea." Journal of Biomolecular Structure and Dynamics 32, no. 4 (2013): 546–54. http://dx.doi.org/10.1080/07391102.2013.782826.

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5

Botting, Catherine H., Paul Talbot, Sonia Paytubi, and Malcolm F. White. "Extensive Lysine Methylation in Hyperthermophilic Crenarchaea: Potential Implications for Protein Stability and Recombinant Enzymes." Archaea 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/106341.

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In eukarya and bacteria, lysine methylation is relatively rare and is catalysed by sequence-specific lysine methyltransferases that typically have only a single-protein target. Using RNA polymerase purified from the thermophilic crenarchaeumSulfolobus solfataricus, we identified 21 methyllysines distributed across 9 subunits of the enzyme. The modified lysines were predominantly inα-helices and showed no conserved sequence context. A limited survey of theThermoproteus tenaxproteome revealed widespread modification with 52 methyllysines in 30 different proteins. These observations suggest the p
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6

Miyabayashi, Hiroka, Hiroyuki D. Sakai, and Norio Kurosawa. "DNA Polymerase B1 Binding Protein 1 Is Important for DNA Repair by Holoenzyme PolB1 in the Extremely Thermophilic Crenarchaeon Sulfolobus acidocaldarius." Microorganisms 9, no. 2 (2021): 439. http://dx.doi.org/10.3390/microorganisms9020439.

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DNA polymerase B1 (PolB1) is a member of the B-family DNA polymerase family and is a replicative DNA polymerase in Crenarchaea. PolB1 is responsible for the DNA replication of both the leading and lagging strands in the thermophilic crenarchaeon Sulfolobus acidocaldarius. Recently, two subunits, PolB1-binding protein (PBP)1 and PBP2, were identified in Saccharolobus solfataricus. Previous in vitro studies suggested that PBP1 and PBP2 influence the core activity of apoenzyme PolB1 (apo-PolB1). PBP1 contains a C-terminal acidic tail and modulates the strand-displacement synthesis activity of Pol
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7

Haseltine, Cynthia, Tiffany Hill, Rafael Montalvo-Rodriguez, Samantha K. Kemper, Richard F. Shand, and Paul Blum. "Secreted Euryarchaeal Microhalocins Kill Hyperthermophilic Crenarchaea." Journal of Bacteriology 183, no. 1 (2001): 287–91. http://dx.doi.org/10.1128/jb.183.1.287-291.2001.

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ABSTRACT Few antibiotics targeting members of the archaeal domain are currently available for genetic studies. Since bacterial antibiotics are frequently directed against competing and related organisms, archaea by analogy might produce effective antiarchaeal antibiotics. Peptide antibiotic (halocin) preparations from euryarchaeal halophilic strains S8a, GN101, and TuA4 were found to be toxic for members of the hyperthermophilic crenarchaeal genus Sulfolobus. No toxicity was evident against representative bacteria or eukarya. Halocin S8 (strain S8a) and halocin R1 (strain GN101) preparations w
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8

Okuda, Maho, Tomoo Shiba, Daniel-Ken Inaoka, et al. "A Conserved Lysine Residue in the Crenarchaea-Specific Loop is Important for the Crenarchaeal Splicing Endonuclease Activity." Journal of Molecular Biology 405, no. 1 (2011): 92–104. http://dx.doi.org/10.1016/j.jmb.2010.10.050.

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9

Pearson, A., Z. Huang, A. E. Ingalls, et al. "Nonmarine Crenarchaeol in Nevada Hot Springs." Applied and Environmental Microbiology 70, no. 9 (2004): 5229–37. http://dx.doi.org/10.1128/aem.70.9.5229-5237.2004.

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ABSTRACT Glycerol dialkyl glycerol tetraethers (GDGTs) are core membrane lipids of the Crenarchaeota. The structurally unusual GDGT crenarchaeol has been proposed as a taxonomically specific biomarker for the marine planktonic group I archaea. It is found ubiquitously in the marine water column and in sediments. In this work, samples of microbial community biomass were obtained from several alkaline and neutral-pH hot springs in Nevada, United States. Lipid extracts of these samples were analyzed by high-performance liquid chromatography-mass spectrometry and by gas chromatography-mass spectro
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10

Götz, Dorothee, Sonia Paytubi, Stacey Munro, Magnus Lundgren, Rolf Bernander, and Malcolm F. White. "Responses of hyperthermophilic crenarchaea to UV irradiation." Genome Biology 8, no. 10 (2007): R220. http://dx.doi.org/10.1186/gb-2007-8-10-r220.

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11

Cozen, Aaron E., Matthew T. Weirauch, Katherine S. Pollard, David L. Bernick, Joshua M. Stuart, and Todd M. Lowe. "Transcriptional Map of Respiratory Versatility in the Hyperthermophilic Crenarchaeon Pyrobaculum aerophilum." Journal of Bacteriology 191, no. 3 (2008): 782–94. http://dx.doi.org/10.1128/jb.00965-08.

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ABSTRACT Hyperthermophilic crenarchaea in the genus Pyrobaculum are notable for respiratory versatility, but relatively little is known about the genetics or regulation of crenarchaeal respiratory pathways. We measured global gene expression in Pyrobaculum aerophilum cultured with oxygen, nitrate, arsenate and ferric iron as terminal electron acceptors to identify transcriptional patterns that differentiate these pathways. We also compared genome sequences for four closely related species with diverse respiratory characteristics (Pyrobaculum arsenaticum, Pyrobaculum calidifontis, Pyrobaculum i
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12

Luo, Xiao, Uli Schwarz-Linek, Catherine H. Botting, Reinhard Hensel, Bettina Siebers, and Malcolm F. White. "CC1, a Novel Crenarchaeal DNA Binding Protein." Journal of Bacteriology 189, no. 2 (2006): 403–9. http://dx.doi.org/10.1128/jb.01246-06.

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ABSTRACT The genomes of the related crenarchaea Pyrobaculum aerophilum and Thermoproteus tenax lack any obvious gene encoding a single-stranded DNA binding protein (SSB). SSBs are essential for DNA replication, recombination, and repair and are found in all other genomes across the three domains of life. These two archaeal genomes also have only one identifiable gene encoding a chromatin protein (the Alba protein), while most other archaea have at least two different abundant chromatin proteins. We performed a biochemical screen for novel nucleic acid binding proteins present in cell extracts
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13

Hobel, Cédric F. V., Sonja V. Albers, Arnold J. M. Driessen, and Andrei N. Lupas. "The Sulfolobus solfataricus AAA protein Sso0909, a homologue of the eukaryotic ESCRT Vps4 ATPase." Biochemical Society Transactions 36, no. 1 (2008): 94–98. http://dx.doi.org/10.1042/bst0360094.

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Sso0909 is a protein of the thermo-acidophilic crenarchaeon Sulfolobus solfataricus, annotated as a p60 katanin-like ATPase. We present here results supporting the hypothesis that Sso0909 is an orthologue of the eukaryotic ESCRT (endosomal sorting complex required for transport) ATPase Vps4 (vacular protein sorting 4). The spectrum of Sso0909 homologues is limited to several orders of Crenarchaea and to three euryarchaeal Thermoplasmata species, where they were presumably acquired by lateral gene transfer. Almost invariably, Sso0909 homologues occur in the genomic vicinity of homologues of euk
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14

Yoshinari, Shigeo, Tomoo Shiba, Daniel-Ken Inaoka, et al. "Functional importance of Crenarchaea-specific extra-loop revealed by an X-ray structure of a heterotetrameric crenarchaeal splicing endonuclease." Nucleic Acids Research 37, no. 14 (2009): 4787–98. http://dx.doi.org/10.1093/nar/gkp506.

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15

Prangishvili, D., and R. A. Garrett. "Exceptionally diverse morphotypes and genomes of crenarchaeal hyperthermophilic viruses." Biochemical Society Transactions 32, no. 2 (2004): 204–8. http://dx.doi.org/10.1042/bst0320204.

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The remarkable diversity of the morphologies of viruses found in terrestrial hydrothermal environments with temperatures >80°C is unprecedented for aquatic ecosystems. The best-studied viruses from these habitats have been assigned to novel viral families: Fuselloviridae, Lipothrixviridae and Rudiviridae. They all have double-stranded DNA genomes and infect hyperthermophilic crenarchaea of the orders Sulfolobales and Thermoproteales. Representatives of the different viral families share a few homologous ORFs (open reading frames). However, about 90% of all ORFs in the seven sequenced genome
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16

Kockelkorn, Daniel, and Georg Fuchs. "Malonic Semialdehyde Reductase, Succinic Semialdehyde Reductase, and Succinyl-Coenzyme A Reductase from Metallosphaera sedula: Enzymes of the Autotrophic 3-Hydroxypropionate/4-Hydroxybutyrate Cycle in Sulfolobales." Journal of Bacteriology 191, no. 20 (2009): 6352–62. http://dx.doi.org/10.1128/jb.00794-09.

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ABSTRACT A 3-hydroxypropionate/4-hydroxybutyrate cycle operates during autotrophic CO2 fixation in various members of the Crenarchaea. In this cycle, as determined using Metallosphaera sedula, malonyl-coenzyme A (malonyl-CoA) and succinyl-CoA are reductively converted via their semialdehydes to the corresponding alcohols 3-hydroxypropionate and 4-hydroxybutyrate. Here three missing oxidoreductases of this cycle were purified from M. sedula and studied. Malonic semialdehyde reductase, a member of the 3-hydroxyacyl-CoA dehydrogenase family, reduces malonic semialdehyde with NADPH to 3-hydroxypro
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17

Ng, Kian-Hong, Vinayaka Srinivas, Ramanujam Srinivasan, and Mohan Balasubramanian. "TheNitrosopumilus maritimusCdvB, but Not FtsZ, Assembles into Polymers." Archaea 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/104147.

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Euryarchaeota and Crenarchaeota are two major phyla of archaea which use distinct molecular apparatuses for cell division. Euryarchaea make use of the tubulin-related protein FtsZ, while Crenarchaea, which appear to lack functional FtsZ, employ the Cdv (cell division) components to divide. Ammonia oxidizing archaeon (AOA)Nitrosopumilus maritimusbelongs to another archaeal phylum, the Thaumarchaeota, which has both FtsZ and Cdv genes in the genome. Here, we used a heterologous expression system to characterize FtsZ and Cdv proteins fromN. maritimusby investigating the ability of these proteins
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18

Zhang, Changyi, Qunxin She, Hongkai Bi, and Rachel J. Whitaker. "Theapt/6-Methylpurine Counterselection System and Its Applications in Genetic Studies of the Hyperthermophilic Archaeon Sulfolobus islandicus." Applied and Environmental Microbiology 82, no. 10 (2016): 3070–81. http://dx.doi.org/10.1128/aem.00455-16.

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ABSTRACTSulfolobus islandicusserves as a model for studying archaeal biology as well as linking novel biology to evolutionary ecology using functional population genomics. In the present study, we developed a new counterselectable genetic marker inS. islandicusto expand the genetic toolbox for this species. We show that resistance to the purine analog 6-methylpurine (6-MP) inS. islandicusM.16.4 is due to the inactivation of a putative adenine phosphoribosyltransferase encoded byM164_0158(apt). The application of theaptgene as a novel counterselectable marker was first illustrated by constructi
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19

Orell, Alvaro, Eveline Peeters, Victoria Vassen, et al. "Lrs14 transcriptional regulators influence biofilm formation and cell motility of Crenarchaea." ISME Journal 7, no. 10 (2013): 1886–98. http://dx.doi.org/10.1038/ismej.2013.68.

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20

Fietz, Susanne, Alfredo Martínez-Garcia, Gemma Rueda, et al. "Crenarchaea and phytoplankton coupling in sedimentary archives: Common trigger or metabolic dependence?" Limnology and Oceanography 56, no. 5 (2011): 1907–16. http://dx.doi.org/10.4319/lo.2011.56.5.1907.

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21

Guo, Li, Yingang Feng, Zhenfeng Zhang, et al. "Biochemical and structural characterization of Cren7, a novel chromatin protein conserved among Crenarchaea." Nucleic Acids Research 36, no. 4 (2007): 1129–37. http://dx.doi.org/10.1093/nar/gkm1128.

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22

Schouten, Stefan, Ellen C. Hopmans, Marianne Baas, et al. "Intact Membrane Lipids of “Candidatus Nitrosopumilus maritimus,” a Cultivated Representative of the Cosmopolitan Mesophilic Group I Crenarchaeota." Applied and Environmental Microbiology 74, no. 8 (2008): 2433–40. http://dx.doi.org/10.1128/aem.01709-07.

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ABSTRACT In this study we analyzed the membrane lipid composition of “Candidatus Nitrosopumilus maritimus,” the only cultivated representative of the cosmopolitan group I crenarchaeota and the only mesophilic isolate of the phylum Crenarchaeota. The core lipids of “Ca. Nitrosopumilus maritimus” consisted of glycerol dialkyl glycerol tetraethers (GDGTs) with zero to four cyclopentyl moieties. Crenarchaeol, a unique GDGT containing a cyclohexyl moiety in addition to four cyclopentyl moieties, was the most abundant GDGT. This confirms unambiguously that crenarchaeol is synthesized by species belo
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23

Nelson, Katelyn A., Nicole S. Moin, and Anne E. Bernhard. "Archaeal Diversity and the Prevalence of Crenarchaeota in Salt Marsh Sediments." Applied and Environmental Microbiology 75, no. 12 (2009): 4211–15. http://dx.doi.org/10.1128/aem.00201-09.

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ABSTRACT Crenarchaeal 16S rRNA sequences constituted over 70% of the archaeal clones recovered from three salt marsh sites dominated by different grasses. Group I.1a Crenarchaeota dominated at two sites, while group I.3b Crenarchaeota sequences were most abundant at a third site. Abundances of 16S rRNA genes related to “Candidatus Nitrosopumilus maritimus” differed by site and sampling date.
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Ghazi-Tabatabai, Sara, Takayuki Obita, Ajaybabu V. Pobbati, et al. "Evolution and assembly of ESCRTs." Biochemical Society Transactions 37, no. 1 (2009): 151–55. http://dx.doi.org/10.1042/bst0370151.

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The AAA (ATPase associated with various cellular activities) proteins participate in membrane trafficking, organelle biogenesis, DNA replication, intracellular locomotion, cytoskeletal remodelling, protein folding and proteolysis. The AAA Vps (vacuolar protein sorting) 4 is central to traffic to lysosomes, retroviral budding and mammalian cell division. It dissociates ESCRTs (endosomal sorting complexes required for transport) from endosomal membranes, enabling their recycling to the cytosol, and plays a role in fission of intraluminal vesicles within MVBs (multivesicular bodies). The mechanis
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25

Zhang, Chuanlun L., Ann Pearson, Yi-Liang Li, Gary Mills, and Juergen Wiegel. "Thermophilic Temperature Optimum for Crenarchaeol Synthesis and Its Implication for Archaeal Evolution." Applied and Environmental Microbiology 72, no. 6 (2006): 4419–22. http://dx.doi.org/10.1128/aem.00191-06.

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ABSTRACT The isoprenoid lipid crenarchaeol is widespread in hot springs of California and Nevada. Terrestrial and marine data together suggest a maximum relative abundance of crenarchaeol at ∼40�C. This warm temperature optimum may have facilitated colonization of the ocean by (hyper)thermophilic Archaea and the major marine radiation of Crenarchaeota.
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26

Walker, C. B., J. R. de la Torre, M. G. Klotz, et al. "Nitrosopumilus maritimus genome reveals unique mechanisms for nitrification and autotrophy in globally distributed marine crenarchaea." Proceedings of the National Academy of Sciences 107, no. 19 (2010): 8818–23. http://dx.doi.org/10.1073/pnas.0913533107.

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27

Peng, Nan, Wenyuan Han, Yingjun Li, Yunxiang Liang, and Qunxin She. "Genetic technologies for extremely thermophilic microorganisms of Sulfolobus, the only genetically tractable genus of crenarchaea." Science China Life Sciences 60, no. 4 (2017): 370–85. http://dx.doi.org/10.1007/s11427-016-0355-8.

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28

White, M. F. "Archaeal DNA repair: paradigms and puzzles." Biochemical Society Transactions 31, no. 3 (2003): 690–93. http://dx.doi.org/10.1042/bst0310690.

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It is now generally accepted that the Archaea share many similarities in their information-processing pathways with eukarya. Archaeal and eukaryal DNA replication and transcriptional machineries show particularly striking similarities, and the archaeal processes have been used extensively as simpler models of the much more complex eukaryal ones. Archaeal DNA-repair pathways are not yet well characterized, and their relationship with repair pathways in bacteria and eukarya are still open to question. There are also strong distinctions between the major subdivisions crenarchaea and euryarchaea w
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Liu, Fang, Minqi Han, Fengli Zhang, Baohua Zhang, and Zhiyong Li. "Distribution and Abundance of Archaea in South China Sea SpongeHoloxeasp. and the Presence of Ammonia-Oxidizing Archaea in Sponge Cells." Evidence-Based Complementary and Alternative Medicine 2011 (2011): 1–5. http://dx.doi.org/10.1155/2011/723696.

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Compared with bacterial symbionts, little is known about archaea in sponges especially about their spatial distribution and abundance. Understanding the distribution and abundance of ammonia-oxidizing archaea will help greatly in elucidating the potential function of symbionts in nitrogen cycling in sponges. In this study, gene libraries of 16S rRNA gene and ammonia monooxygenase subunit A (amoA) genes and quantitative real-time PCR were used to study the spatial distribution and abundance of archaea in the South China Sea spongeHoloxeasp. As a result,Holoxeasp. specific AOA, mainly group C1a
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30

Toffano-Nioche, Claire, Daniel Gautheret, and Fabrice Leclerc. "Revisiting the structure/function relationships of H/ACA(-like) RNAs: a unified model for Euryarchaea and Crenarchaea." Nucleic Acids Research 43, no. 16 (2015): 7744–61. http://dx.doi.org/10.1093/nar/gkv756.

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31

Pitcher, Angela, Stefan Schouten, and Jaap S. Sinninghe Damsté. "In Situ Production of Crenarchaeol in Two California Hot Springs." Applied and Environmental Microbiology 75, no. 13 (2009): 4443–51. http://dx.doi.org/10.1128/aem.02591-08.

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ABSTRACT Crenarchaeol, a membrane-spanning glycerol dialkyl glycerol tetraether (GDGT) containing a cyclohexane moiety in addition to four cyclopentane moieties, was originally hypothesized to be synthesized exclusively by the mesophilic Crenarchaeota. Recent studies reporting the occurrence of crenarchaeol in hot springs and as a membrane constituent of the recently isolated thermophilic crenarchaeote “Candidatus Nitrosocaldus yellowstonii,” however, have raised questions regarding its taxonomic distribution and function. To determine whether crenarchaeol in hot springs is indeed synthesized
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32

Weidler, Gerhard W., Friedrich W. Gerbl, and Helga Stan-Lotter. "Crenarchaeota and Their Role in the Nitrogen Cycle in a Subsurface Radioactive Thermal Spring in the Austrian Central Alps." Applied and Environmental Microbiology 74, no. 19 (2008): 5934–42. http://dx.doi.org/10.1128/aem.02602-07.

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ABSTRACT Previous results from a 16S rRNA gene library analysis showed high diversity within the prokaryotic community of a subterranean radioactive thermal spring, the “Franz-Josef-Quelle” (FJQ) in Bad Gastein, Austria, as well as evidence for ammonia oxidation by crenarchaeota. This study reports further characterization of the community by denaturing gradient gel electrophoresis (DGGE) analysis, fluorescence in situ hybridization (FISH), and semiquantitative nitrification measurements. DGGE bands from three types of samples (filtered water, biofilms on glass slides, and naturally grown biof
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Sliwinski, Marek K., and Robert M. Goodman. "Spatial Heterogeneity of Crenarchaeal Assemblages within Mesophilic Soil Ecosystems as Revealed by PCR-Single-Stranded Conformation Polymorphism Profiling." Applied and Environmental Microbiology 70, no. 3 (2004): 1811–20. http://dx.doi.org/10.1128/aem.70.3.1811-1820.2004.

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ABSTRACT Microbial ecologists have discovered novel rRNA genes (rDNA) in mesophilic soil habitats worldwide, including sequences that affiliate phylogenetically within the division Crenarchaeota (domain Archaea). To characterize the spatial distribution of crenarchaeal assemblages in mesophilic soil habitats, we profiled amplified crenarchaeal 16S rDNA sequences from diverse soil ecosystems by using PCR-single-stranded-conformation polymorphism (PCR-SSCP) analysis. PCR-SSCP profiles provide a measure of relative microbial diversity in terms of richness (number of different phylotypes as estima
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Sheng, DuoHong, MingFeng Li, JianDong Jiao, JinFeng Ni, and YuLong Shen. "Co-expression with RadA and the characterization of stRad55B, a RadA paralog from the hyperthermophilic crenarchaea Sulfolobus tokodaii." Science in China Series C: Life Sciences 51, no. 1 (2008): 60–65. http://dx.doi.org/10.1007/s11427-008-0008-x.

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Kähler, Markus, and Garabed Antranikian. "Cloning and Characterization of a Family B DNA Polymerase from the Hyperthermophilic Crenarchaeon Pyrobaculum islandicum." Journal of Bacteriology 182, no. 3 (2000): 655–63. http://dx.doi.org/10.1128/jb.182.3.655-663.2000.

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ABSTRACT In order to extend the limited knowledge about crenarchaeal DNA polymerases, we cloned a gene encoding a family B DNA polymerase from the hyperthermophilic crenarchaeon Pyrobaculum islandicum. The enzyme shared highest sequence identities with a group of phylogenetically related DNA polymerases, designated B3 DNA polymerases, from members of the kingdom Crenarchaeota,Pyrodictium occultum and Aeropyrum pernix, and several members of the kingdom Euryarchaeota. Six highly conserved regions as well as a DNA-binding motif, indicative of family B DNA polymerases, were identified within the
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36

Llir�s, Marc, Frederic Gich, Anna Plasencia, et al. "Vertical Distribution of Ammonia-Oxidizing Crenarchaeota and Methanogens in the Epipelagic Waters of Lake Kivu (Rwanda-Democratic Republic of the Congo)." Applied and Environmental Microbiology 76, no. 20 (2010): 6853–63. http://dx.doi.org/10.1128/aem.02864-09.

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ABSTRACT Four stratified basins in Lake Kivu (Rwanda-Democratic Republic of the Congo) were sampled in March 2007 to investigate the abundance, distribution, and potential biogeochemical role of planktonic archaea. We used fluorescence in situ hybridization with catalyzed-reported deposition microscopic counts (CARD-FISH), denaturing gradient gel electrophoresis (DGGE) fingerprinting, and quantitative PCR (qPCR) of signature genes for ammonia-oxidizing archaea (16S rRNA for marine Crenarchaeota group 1.1a [MCG1] and ammonia monooxygenase subunit A [amoA]). Abundance of archaea ranged from 1 to
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37

Boyd, Eric S., Robert A. Jackson, Gem Encarnacion, et al. "Isolation, Characterization, and Ecology of Sulfur-Respiring Crenarchaea Inhabiting Acid-Sulfate-Chloride-Containing Geothermal Springs in Yellowstone National Park." Applied and Environmental Microbiology 73, no. 20 (2007): 6669–77. http://dx.doi.org/10.1128/aem.01321-07.

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ABSTRACT Elemental sulfur (S0) is associated with many geochemically diverse hot springs, yet little is known about the phylogeny, physiology, and ecology of the organisms involved in its cycling. Here we report the isolation, characterization, and ecology of two novel, S0-reducing Crenarchaea from an acid geothermal spring referred to as Dragon Spring. Isolate 18U65 grows optimally at 70 to 72°C and at pH 2.5 to 3.0, while isolate 18D70 grows optimally at 81°C and pH 3.0. Both isolates are chemoorganotrophs, dependent on complex peptide-containing carbon sources, S0, and anaerobic conditions
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Tian, Lei, Zhenfeng Zhang, Hanqian Wang, Mohan Zhao, Yuhui Dong, and Yong Gong. "Sequence-Dependent T:G Base Pair Opening in DNA Double Helix Bound by Cren7, a Chromatin Protein Conserved among Crenarchaea." PLOS ONE 11, no. 9 (2016): e0163361. http://dx.doi.org/10.1371/journal.pone.0163361.

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39

Serek-Heuberger, Justyna, Cédric F. V. Hobel, Stanislaw Dunin-Horkawicz, Beate Rockel, Jörg Martin, and Andrei N. Lupas. "Two unique membrane-bound AAA proteins from Sulfolobus solfataricus." Biochemical Society Transactions 37, no. 1 (2009): 118–22. http://dx.doi.org/10.1042/bst0370118.

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Thermoacidophilic crenarchaea of the genus Sulfolobus contain six AAA (ATPase associated with various cellular activities) proteins, including a proteasome-associated ATPase, a Vps4 (vacuolar protein sorting 4) homologue, and two Cdc48 (cell-division cycle 48)-like proteins. The last two AAA proteins are deeply branching divergent members of this family without close relatives outside the Sulfolobales. Both proteins have two nucleotide-binding domains and, unlike other members of the family, they seem to lack folded N-terminal domains. Instead, they contain N-terminal extensions of approx. 50
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Wells, George F., Hee-Deung Park, Chok-Hang Yeung, Brad Eggleston, Christopher A. Francis, and Craig S. Criddle. "Ammonia-oxidizing communities in a highly aerated full-scale activated sludge bioreactor: betaproteobacterial dynamics and low relative abundance of Crenarchaea." Environmental Microbiology 11, no. 9 (2009): 2310–28. http://dx.doi.org/10.1111/j.1462-2920.2009.01958.x.

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Hirata, Akira, Tsubasa Kitajima, and Hiroyuki Hori. "Cleavage of intron from the standard or non-standard position of the precursor tRNA by the splicing endonuclease of Aeropyrum pernix, a hyper-thermophilic Crenarchaeon, involves a novel RNA recognition site in the Crenarchaea specific loop." Nucleic Acids Research 39, no. 21 (2011): 9376–89. http://dx.doi.org/10.1093/nar/gkr615.

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Simon, Holly M., Courtney E. Jahn, Luke T. Bergerud, et al. "Cultivation of Mesophilic Soil Crenarchaeotes in Enrichment Cultures from Plant Roots." Applied and Environmental Microbiology 71, no. 8 (2005): 4751–60. http://dx.doi.org/10.1128/aem.71.8.4751-4760.2005.

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ABSTRACT Because archaea are generally associated with extreme environments, detection of nonthermophilic members belonging to the archaeal division Crenarchaeota over the last decade was unexpected; they are surprisingly ubiquitous and abundant in nonextreme marine and terrestrial habitats. Metabolic characterization of these nonthermophilic crenarchaeotes has been impeded by their intractability toward isolation and growth in culture. From studies employing a combination of cultivation and molecular phylogenetic techniques (PCR-single-strand conformation polymorphism, sequence analysis of 16
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Large, Andrew T., Martin D. Goldberg, and Peter A. Lund. "Chaperones and protein folding in the archaea." Biochemical Society Transactions 37, no. 1 (2009): 46–51. http://dx.doi.org/10.1042/bst0370046.

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A survey of archaeal genomes for the presence of homologues of bacterial and eukaryotic chaperones reveals several interesting features. All archaea contain chaperonins, also known as Hsp60s (where Hsp is heat-shock protein). These are more similar to the type II chaperonins found in the eukaryotic cytosol than to the type I chaperonins found in bacteria, mitochondria and chloroplasts, although some archaea also contain type I chaperonin homologues, presumably acquired by horizontal gene transfer. Most archaea contain several genes for these proteins. Our studies on the type II chaperonins of
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Shimizu, Satoru, Yoshiteru Sato, Ella Czarina Magat Juan, et al. "X-ray analyses of two evolutionarily different threonyl-tRNA synthetases which perform a function by supplementing their defects to each other in crenarchaea." Acta Crystallographica Section A Foundations of Crystallography 65, a1 (2009): s17—s18. http://dx.doi.org/10.1107/s010876730909970x.

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Brügger, Kim, Lanming Chen, Markus Stark, et al. "The genome ofHyperthermus butylicus: a sulfur-reducing, peptide fermenting, neutrophilic Crenarchaeote growing up to 108 °C." Archaea 2, no. 2 (2007): 127–35. http://dx.doi.org/10.1155/2007/745987.

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Hyperthermus butylicus, a hyperthermophilic neutrophile and anaerobe, is a member of the archaeal kingdom Crenarchaeota. Its genome consists of a single circular chromosome of 1,667,163 bp with a 53.7% G+C content. A total of 1672 genes were annotated, of which 1602 are protein-coding, and up to a third are specific toH. butylicus. In contrast to some other crenarchaeal genomes, a high level of GUG and UUG start codons are predicted. Twocdc6genes are present, but neither could be linked unambiguously to an origin of replication. Many of the predicted metabolic gene products are associated with
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Yim, Kyung June, In-Tae Cha, Jin-Kyu Rhee, et al. "Vulcanisaeta thermophila sp. nov., a hyperthermophilic and acidophilic crenarchaeon isolated from solfataric soil." International Journal of Systematic and Evolutionary Microbiology 65, Pt_1 (2015): 201–5. http://dx.doi.org/10.1099/ijs.0.065862-0.

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An anaerobic, rod-shaped, hyperthermophilic and acidophilic crenarchaeon, designated strain CBA1501T, was isolated from solfataric soil of the Mayon volcano in the Republic of the Philippines. Phylogenetic analysis showed that strain CBA1501T is affiliated with the genus Vulcanisaeta in the phylum Crenarchaeota . DNA sequence similarities between the 16S rRNA gene of strain CBA1501T and those of Vulcanisaeta distributa IC-017T and Vulcanisaeta souniana IC-059T were 98.5 and 97.4 %, respectively. Strain CBA1501T grew between 75–90 °C, over a pH range of 4.0–6.0 and in the presence of 0–1.0 % (w
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van Wolferen, Marleen, Alexander Wagner, Chris van der Does, and Sonja-Verena Albers. "The archaeal Ced system imports DNA." Proceedings of the National Academy of Sciences 113, no. 9 (2016): 2496–501. http://dx.doi.org/10.1073/pnas.1513740113.

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The intercellular transfer of DNA is a phenomenon that occurs in all domains of life and is a major driving force of evolution. Upon UV-light treatment, cells of the crenarchaeal genus Sulfolobus express Ups pili, which initiate cell aggregate formation. Within these aggregates, chromosomal DNA, which is used for the repair of DNA double-strand breaks, is exchanged. Because so far no clear homologs of bacterial DNA transporters have been identified among the genomes of Archaea, the mechanisms of archaeal DNA transport have remained a puzzling and underinvestigated topic. Here we identify saci_
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Ergal, Ipek, Barbara Reischl, Benedikt Hasibar, et al. "Formate Utilization by the Crenarchaeon Desulfurococcus amylolyticus." Microorganisms 8, no. 3 (2020): 454. http://dx.doi.org/10.3390/microorganisms8030454.

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Formate is one of the key compounds of the microbial carbon and/or energy metabolism. It owes a significant contribution to various anaerobic syntrophic associations, and may become one of the energy storage compounds of modern energy biotechnology. Microbial growth on formate was demonstrated for different bacteria and archaea, but not yet for species of the archaeal phylum Crenarchaeota. Here, we show that Desulfurococcus amylolyticus DSM 16532, an anaerobic and hyperthermophilic Crenarchaeon, metabolises formate without the production of molecular hydrogen. Growth, substrate uptake, and pro
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Ramos-Vera, W. Hugo, Ivan A. Berg, and Georg Fuchs. "Autotrophic Carbon Dioxide Assimilation in Thermoproteales Revisited." Journal of Bacteriology 191, no. 13 (2009): 4286–97. http://dx.doi.org/10.1128/jb.00145-09.

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ABSTRACT For Crenarchaea, two new autotrophic carbon fixation cycles were recently described. Sulfolobales use the 3-hydroxypropionate/4-hydroxybutyrate cycle, with acetyl-coenzyme A (CoA)/propionyl-CoA carboxylase as the carboxylating enzyme. Ignicoccus hospitalis (Desulfurococcales) uses the dicarboxylate/4-hydroxybutyrate cycle, with pyruvate synthase and phosphoenolpyruvate carboxylase being responsible for CO2 fixation. In the two cycles, acetyl-CoA and two inorganic carbons are transformed to succinyl-CoA by different routes, whereas the regeneration of acetyl-CoA from succinyl-CoA proce
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Raia, Pierre, Marc Delarue, and Ludovic Sauguet. "An updated structural classification of replicative DNA polymerases." Biochemical Society Transactions 47, no. 1 (2019): 239–49. http://dx.doi.org/10.1042/bst20180579.

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AbstractReplicative DNA polymerases are nano-machines essential to life, which have evolved the ability to copy the genome with high fidelity and high processivity. In contrast with cellular transcriptases and ribosome machines, which evolved by accretion of complexity from a conserved catalytic core, no replicative DNA polymerase is universally conserved. Strikingly, four different families of DNA polymerases have evolved to perform DNA replication in the three domains of life. In Bacteria, the genome is replicated by DNA polymerases belonging to the A- and C-families. In Eukarya, genomic DNA
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