O A Karlsen

Summary

Affiliation: University of Bergen
Country: Norway

Publications

  1. doi request reprint The presence of multiple c-type cytochromes at the surface of the methanotrophic bacterium Methylococcus capsulatus (Bath) is regulated by copper
    O A Karlsen
    Department of Molecular Biology, University of Bergen, Bergen, Norway
    Mol Microbiol 70:15-26. 2008
  2. pmc CorA is a copper repressible surface-associated copper(I)-binding protein produced in Methylomicrobium album BG8
    Kenneth A Johnson
    Norwegian Structural Biology Centre, Faculty of Science, University of Tromsø, Tromsø, Norway
    PLoS ONE 9:e87750. 2014
  3. pmc Conservation and divergence of chemical defense system in the tunicate Oikopleura dioica revealed by genome wide response to two xenobiotics
    Fekadu Yadetie
    Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
    BMC Genomics 13:55. 2012
  4. doi request reprint The copper responding surfaceome of Methylococccus capsulatus Bath
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEMS Microbiol Lett 323:97-104. 2011
  5. ncbi request reprint Mass spectrometric analyses of microsomal cytochrome P450 isozymes isolated from β-naphthoflavone-treated Atlantic cod (Gadus morhua) liver reveal insights into the cod CYPome
    Odd Andre Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    Aquat Toxicol 108:2-10. 2012
  6. ncbi request reprint Identification of a bacterial di-haem cytochrome c peroxidase from Methylomicrobium album BG8
    O A Karlsen
    Department of Molecular Biology, University of Bergen, Thormøhlensgate 55, N 5020 Bergen, Norway
    Microbiology 156:2682-90. 2010
  7. ncbi request reprint Characterization of a prokaryotic haemerythrin from the methanotrophic bacterium Methylococcus capsulatus (Bath)
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEBS J 272:2428-40. 2005
  8. ncbi request reprint Identification of a copper-repressible C-type heme protein of Methylococcus capsulatus (Bath). A member of a novel group of the bacterial di-heme cytochrome c peroxidase family of proteins
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEBS J 272:6324-35. 2005
  9. ncbi request reprint Precision-cut liver slices of Atlantic cod (Gadus morhua): an in vitro system for studying the effects of environmental contaminants
    M Eide
    Department of Biology, University of Bergen, Bergen, Norway Electronic address
    Aquat Toxicol 153:110-5. 2014
  10. ncbi request reprint Alterations in the Atlantic cod (Gadus morhua) hepatic thiol-proteome after methylmercury exposure
    O A Karlsen
    a Department of Biology, University of Bergen, Bergen, Norway
    J Toxicol Environ Health A 77:650-62. 2014

Collaborators

Detail Information

Publications13

  1. doi request reprint The presence of multiple c-type cytochromes at the surface of the methanotrophic bacterium Methylococcus capsulatus (Bath) is regulated by copper
    O A Karlsen
    Department of Molecular Biology, University of Bergen, Bergen, Norway
    Mol Microbiol 70:15-26. 2008
    ..Due to the unique role of copper in the biology of M. capsulatus (Bath), it appears that c-type cytochromes have essential functions in copper homeostasis allowing the cells to adapt to varying copper exposure...
  2. pmc CorA is a copper repressible surface-associated copper(I)-binding protein produced in Methylomicrobium album BG8
    Kenneth A Johnson
    Norwegian Structural Biology Centre, Faculty of Science, University of Tromsø, Tromsø, Norway
    PLoS ONE 9:e87750. 2014
    ..Our findings show that CorA has an overall fold similar to MopE, including the unique copper(I)-binding site and most of the secondary structure elements. We suggest that CorA plays a role in the M. album BG8 copper acquisition. ..
  3. pmc Conservation and divergence of chemical defense system in the tunicate Oikopleura dioica revealed by genome wide response to two xenobiotics
    Fekadu Yadetie
    Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
    BMC Genomics 13:55. 2012
    ....
  4. doi request reprint The copper responding surfaceome of Methylococccus capsulatus Bath
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEMS Microbiol Lett 323:97-104. 2011
    ..This review will discuss the possible significance of these findings...
  5. ncbi request reprint Mass spectrometric analyses of microsomal cytochrome P450 isozymes isolated from β-naphthoflavone-treated Atlantic cod (Gadus morhua) liver reveal insights into the cod CYPome
    Odd Andre Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    Aquat Toxicol 108:2-10. 2012
    ..Importantly, the majority of the CYPs revealed in this study have not previously been reported from cod, and represents the first proteomic survey to uncover the expressed complement of CYPs in any non-mammalian species...
  6. ncbi request reprint Identification of a bacterial di-haem cytochrome c peroxidase from Methylomicrobium album BG8
    O A Karlsen
    Department of Molecular Biology, University of Bergen, Thormøhlensgate 55, N 5020 Bergen, Norway
    Microbiology 156:2682-90. 2010
    ..M. album CorB is the second isolated member of the recently described subfamily of the BCCP family of proteins. So far, these proteins have only been described in methanotrophic bacteria...
  7. ncbi request reprint Characterization of a prokaryotic haemerythrin from the methanotrophic bacterium Methylococcus capsulatus (Bath)
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEBS J 272:2428-40. 2005
    ..A comprehensive genomic database search revealed 21 different prokaryotes containing the haemerythrin signature (PROSITE 00550), indicating that these putative haemerythrins may be a conserved prokaryotic subfamily...
  8. ncbi request reprint Identification of a copper-repressible C-type heme protein of Methylococcus capsulatus (Bath). A member of a novel group of the bacterial di-heme cytochrome c peroxidase family of proteins
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    FEBS J 272:6324-35. 2005
    ..Based on our experimental and bioinformatical analyses, we suggest that MCA2590 is a member of a novel group of bacterial di-heme cytochrome c peroxidases not previously characterized...
  9. ncbi request reprint Precision-cut liver slices of Atlantic cod (Gadus morhua): an in vitro system for studying the effects of environmental contaminants
    M Eide
    Department of Biology, University of Bergen, Bergen, Norway Electronic address
    Aquat Toxicol 153:110-5. 2014
    ..In conclusion, PCLS is a promising in vitro system for toxicological studies of cod liver cells. The liver slices are viable in culture for several days and respond to environmental contaminants in a dose- and time-specific manner...
  10. ncbi request reprint Alterations in the Atlantic cod (Gadus morhua) hepatic thiol-proteome after methylmercury exposure
    O A Karlsen
    a Department of Biology, University of Bergen, Bergen, Norway
    J Toxicol Environ Health A 77:650-62. 2014
    ..The latter finding suggests that MeHg may also affect the hematological system in Atlantic cod. ..
  11. pmc The surface-associated and secreted MopE protein of Methylococcus capsulatus (Bath) responds to changes in the concentration of copper in the growth medium
    Odd A Karlsen
    Department of Molecular Biology, University of Bergen, Norway
    Appl Environ Microbiol 69:2386-8. 2003
    ..The level of protein associated with the cells and secreted to the medium changed when the copper concentration in the medium varied and was highest in cells exposed to copper stress...
  12. ncbi request reprint Multiple polypeptide forms observed in two-dimensional gels of Methylococcus capsulatus (Bath) polypeptides are generated during the separation procedure
    Frode S Berven
    Department of Molecular Biology, University of Bergen, Bergen, Norway
    Electrophoresis 24:757-61. 2003
    ..The phenomenon most likely reflects conformational equilibria of polypeptides arising from the experimental conditions used, and is a clear drawback of the standard 2-DE procedure, making the gel picture unnecessarily complex to analyse...
  13. pmc Human Naa50p (Nat5/San) displays both protein N alpha- and N epsilon-acetyltransferase activity
    Rune Evjenth
    Department of Molecular Biology, University of Bergen, N 5020 Bergen, Norway
    J Biol Chem 284:31122-9. 2009
    ..In addition, histone 4 was detected as a hNaa50p KAT substrate in vitro. Our findings thus provide the first experimental evidence of an enzyme having both KAT and NAT activities...