Browsing Biologisk institutt ( -2012) by Author "Jakobsen, Kjetill S"
Now showing items 1-12 of 12
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Rounge, Trine B; Rohrlack, Thomas; Nederbragt, Alexander J; Kristensen, Tom; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Cyanobacteria often produce several different oligopeptides, with unknown biological functions, by nonribosomal peptide synthetases (NRPS). Although some cyanobacterial NRPS gene cluster types ...
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Håvelsrud, Elise O; Haverkamp, Thomas H; Kristensen, Tom; Jakobsen, Kjetill S; Rike, Anne G (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission. In the anoxic parts of the sediments, ...
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Minge, Marianne A; Shalchian-Tabrizi, Kamran; Tørresen, Ole K; Takishita, Kiyotaka; Probert, Ian; Inagaki, Yuji; Klaveness, Dag; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background Plastid replacements through secondary endosymbioses include massive transfer of genes from the endosymbiont to the host nucleus and require a new targeting system to enable transport of the ...
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Siddiqui, Huma; Lagesen, Karin; Nederbragt, Alexander J; Jeansson, Stig L; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Background Interstitial Cystitis (IC) is a chronic inflammatory condition of the bladder with unknown etiology. The aim of this study was to characterize the microbial community present in the urine from ...
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Siddiqui, Huma; Nederbragt, Alexander J; Lagesen, Karin; Jeansson, Stig L; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Background Urine within the urinary tract is commonly regarded as "sterile" in cultivation terms. Here, we present a comprehensive in-depth study of bacterial 16S rDNA sequences associated with urine from ...
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Holmen, Johannes; Vøllestad, Leif A; Jakobsen, Kjetill S; Primmer, Craig R (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background To conduct phylogeographic or population genetic studies, an adequate number of DNA markers for the focal species are required. Due to severe unavailability of genotype markers of any kind for ...
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Tooming-Klunderud, Ave; Fewer, David P; Rohrlack, Thomas; Jokela, Jouni; Rouhiainen, Leo; Sivonen, Kaarina; Kristensen, Tom; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)Background Cyanobacteria produce a wealth of secondary metabolites, including the group of small cyclic heptapeptide hepatotoxins that constitutes the microcystin family. The enzyme complex that directs the ...
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Marcussen, Thomas; Oxelman, Bengt; Skog, Anna; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background DNA-dependent RNA polymerase IV and V (Pol IV and V) are multi-subunit enzymes occurring in plants. The origin of Pol V, specific to angiosperms, from Pol IV, which is present in all land plants, ...
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Wetten, Ola F; Nederbragt, Alexander J; Wilson, Robert C; Jakobsen, Kjetill S; Edvardsen, Rolf B; Andersen, Øivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The vertebrate globin genes encoding the α- and β-subunits of the tetrameric hemoglobins are clustered at two unlinked loci. The highly conserved linear order of the genes flanking the hemoglobins ...
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Håvelsrud, Othilde E; Haverkamp, Thomas H; Kristensen, Tom; Jakobsen, Kjetill S; Rike, Anne G (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Background Pockmarks (depressions in the seabed) have been discovered throughout the world’s oceans and are often related to hydrocarbon seepage. Although high concentrations of pockmarks are present in ...
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Rounge, Trine B; Rohrlack, Thomas; Kristensen, Tom; Jakobsen, Kjetill S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)Background Cyanopeptolins are nonribosomally produced heptapetides showing a highly variable composition. The cyanopeptolin synthetase operon has previously been investigated in three strains from the genera ...
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Bråte, Jon; Klaveness, Dag; Rygh, Tellef; Jakobsen, Kjetill S; Shalchian-Tabrizi, Kamran (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background Recent surveys of eukaryote 18S rDNA diversity in marine habitats have uncovered worldwide distribution of the heterotrophic eukaryote phylum Telonemia. Here we investigate the diversity and ...