Ralf Koebnik

Summary

Country: Germany

Publications

  1. ncbi request reprint TonB-dependent trans-envelope signalling: the exception or the rule?
    Ralf Koebnik
    Institute of Genetics, Martin Luther University, D 06099 Halle, Germany
    Trends Microbiol 13:343-7. 2005
  2. pmc Specific binding of the Xanthomonas campestris pv. vesicatoria AraC-type transcriptional activator HrpX to plant-inducible promoter boxes
    Ralf Koebnik
    Institut fur Genetik, Martin Luther Universitat, Weinbergweg 10, 06120 Halle, Saale, Germany
    J Bacteriol 188:7652-60. 2006
  3. ncbi request reprint Refinement of the Xanthomonas campestris pv. vesicatoria hrpD and hrpE operon structure
    Ernst Weber
    Institut fur Genetik, Martin Luther Universitat Halle Wittenberg, D 06099 Halle Saale, Germany
    Mol Plant Microbe Interact 20:559-67. 2007
  4. doi request reprint Five phylogenetically close rice SWEET genes confer TAL effector-mediated susceptibility to Xanthomonas oryzae pv. oryzae
    Jana Streubel
    Department of Genetics, Martin Luther University Halle Wittenberg, Weinbergweg 10, D 06120, Halle Saale, Germany
    New Phytol 200:808-19. 2013
  5. pmc Insights into genome plasticity and pathogenicity of the plant pathogenic bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete genome sequence
    Frank Thieme
    Martin Luther Universitat, Institut fur Genetik, Weinbergweg 10, D 06120 Halle Saale, Germany
    J Bacteriol 187:7254-66. 2005
  6. pmc Domain structure of HrpE, the Hrp pilus subunit of Xanthomonas campestris pv. vesicatoria
    Ernst Weber
    Institute of Genetics, Martin Luther University, D 06120 Halle, Germany
    J Bacteriol 187:6175-86. 2005
  7. doi request reprint Membrane topology of conserved components of the type III secretion system from the plant pathogen Xanthomonas campestris pv. vesicatoria
    Carolin Berger
    Institute of Biology, Department of Genetics, Martin Luther University, 06099 Halle, Germany
    Microbiology 156:1963-74. 2010
  8. pmc Positive selection of the Hrp pilin HrpE of the plant pathogen Xanthomonas
    Ernst Weber
    Institute of Genetics, Martin Luther University, Halle, Germany
    J Bacteriol 188:1405-10. 2006
  9. pmc The type III-dependent Hrp pilus is required for productive interaction of Xanthomonas campestris pv. vesicatoria with pepper host plants
    Ernst Weber
    Martin Luther Universitat, Institut fur Genetik, Weinbergweg 10, D 06120 Halle Saale, Germany
    J Bacteriol 187:2458-68. 2005
  10. ncbi request reprint A minimal transmembrane beta-barrel platform protein studied by nuclear magnetic resonance
    Maria U Johansson
    Laboratorium fur Physikalische Chemie, ETH Honggerberg, Wolfgang Pauli Strasse 10, CH 8093 Zurich, Switzerland
    Biochemistry 46:1128-40. 2007

Collaborators

Detail Information

Publications14

  1. ncbi request reprint TonB-dependent trans-envelope signalling: the exception or the rule?
    Ralf Koebnik
    Institute of Genetics, Martin Luther University, D 06099 Halle, Germany
    Trends Microbiol 13:343-7. 2005
    ..In the course of these analyses, a novel protein domain of unknown function was identified and four different modular structures of TonB-dependent receptors were detected...
  2. pmc Specific binding of the Xanthomonas campestris pv. vesicatoria AraC-type transcriptional activator HrpX to plant-inducible promoter boxes
    Ralf Koebnik
    Institut fur Genetik, Martin Luther Universitat, Weinbergweg 10, 06120 Halle, Saale, Germany
    J Bacteriol 188:7652-60. 2006
    ..We conclude that HrpX is the most downstream component of the hrp regulatory cascade, which is proposed to directly activate most genes of the hrpX regulon via binding to corresponding PIP boxes...
  3. ncbi request reprint Refinement of the Xanthomonas campestris pv. vesicatoria hrpD and hrpE operon structure
    Ernst Weber
    Institut fur Genetik, Martin Luther Universitat Halle Wittenberg, D 06099 Halle Saale, Germany
    Mol Plant Microbe Interact 20:559-67. 2007
    ..Based on comparisons of different hrp gene clusters and the analysis of evolutionary rates, we propose that the hrpE transcriptional unit was integrated into the hrp gene cluster at a later time...
  4. doi request reprint Five phylogenetically close rice SWEET genes confer TAL effector-mediated susceptibility to Xanthomonas oryzae pv. oryzae
    Jana Streubel
    Department of Genetics, Martin Luther University Halle Wittenberg, Weinbergweg 10, D 06120, Halle Saale, Germany
    New Phytol 200:808-19. 2013
    ..Our results demonstrate that five phylogenetically close SWEET proteins, which presumably act as sucrose transporters, can support Xoo virulence. ..
  5. pmc Insights into genome plasticity and pathogenicity of the plant pathogenic bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete genome sequence
    Frank Thieme
    Martin Luther Universitat, Institut fur Genetik, Weinbergweg 10, D 06120 Halle Saale, Germany
    J Bacteriol 187:7254-66. 2005
    ..Comparisons with other completely sequenced plant pathogens predicted six novel type III effector proteins and several other virulence factors, including adhesins, cell wall-degrading enzymes, and extracellular polysaccharides...
  6. pmc Domain structure of HrpE, the Hrp pilus subunit of Xanthomonas campestris pv. vesicatoria
    Ernst Weber
    Institute of Genetics, Martin Luther University, D 06120 Halle, Germany
    J Bacteriol 187:6175-86. 2005
    ..tomato DC3000, and hydrophobicity plot analyses of several nonhomologous Hrp pilins suggest a common architecture of Hrp pilins of different plant-pathogenic bacteria...
  7. doi request reprint Membrane topology of conserved components of the type III secretion system from the plant pathogen Xanthomonas campestris pv. vesicatoria
    Carolin Berger
    Institute of Biology, Department of Genetics, Martin Luther University, 06099 Halle, Germany
    Microbiology 156:1963-74. 2010
    ..Our results provide what is believed to be the first complete model of the inner membrane topology of any bacterial T3S system and will aid in elucidating the architecture of T3S systems by ultrastructural analysis...
  8. pmc Positive selection of the Hrp pilin HrpE of the plant pathogen Xanthomonas
    Ernst Weber
    Institute of Genetics, Martin Luther University, Halle, Germany
    J Bacteriol 188:1405-10. 2006
    ....
  9. pmc The type III-dependent Hrp pilus is required for productive interaction of Xanthomonas campestris pv. vesicatoria with pepper host plants
    Ernst Weber
    Martin Luther Universitat, Institut fur Genetik, Weinbergweg 10, D 06120 Halle Saale, Germany
    J Bacteriol 187:2458-68. 2005
    ..Hence, there are no other conserved Hrp or Hrc proteins that act downstream of HrpE during type III-dependent protein translocation...
  10. ncbi request reprint A minimal transmembrane beta-barrel platform protein studied by nuclear magnetic resonance
    Maria U Johansson
    Laboratorium fur Physikalische Chemie, ETH Honggerberg, Wolfgang Pauli Strasse 10, CH 8093 Zurich, Switzerland
    Biochemistry 46:1128-40. 2007
    ..BBP and BBP+EF in dihexanoylphosphatidylcholine micelles are eight-stranded antiparallel beta-barrels, and BBP represents the smallest beta-structured integral membrane protein known to date...
  11. pmc Genome sequence and rapid evolution of the rice pathogen Xanthomonas oryzae pv. oryzae PXO99A
    Steven L Salzberg
    Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA
    BMC Genomics 9:204. 2008
    ..We report here on the complete genome sequence of strain PXO99A and its comparison to two previously sequenced strains, KACC10331 and MAFF311018, which are highly similar to one another...
  12. pmc The missing link: Bordetella petrii is endowed with both the metabolic versatility of environmental bacteria and virulence traits of pathogenic Bordetellae
    Roy Gross
    Chair of Microbiology, Biocenter, University of Wurzburg, Am Hubland, D 97074 Wurzburg, Germany
    BMC Genomics 9:449. 2008
    ..Recently, clinical isolates associated with bone degenerative disease or cystic fibrosis have also been described...