All Stories

  1. De novo or Salvage? Nucleotide Availability as a Driver of Bacterial Adaptation and Virulence

    Article • MicrobiologyOpen, July 2026, Wiley

    Ulrike Kappler

  2. Acetate‐Linked Energy Metabolism as a Determinant of Early Haemophilus influenzae Infection Fitness

    Article • MicrobiologyOpen, June 2026, Wiley

    Ulrike Kappler

  3. Beyond anaerobic respiration—new physiological roles for DmsABC and other S-/N-oxide reductases in Escherichia coli

    Article • Journal of Bacteriology, May 2025, ASM Journals

    Ulrike Kappler

  4. Molecular and cellular biology of bacterial lactate metabolism

    Article • January 2025, Elsevier

    Ulrike Kappler

  5. ASM 2024 Brisbane

    Article • Microbiology Australia, August 2024, CSIRO Publishing

    Ulrike Kappler

  6. Tolerance to Haemophilus influenzae infection in human epithelial cells: Insights from a primary cell-based model

    Article • PLoS Pathogens, July 2024, PLOS

    Ulrike Kappler

  7. The DmsABC S-oxide reductase is an essential component of a novel, hypochlorite-inducible system of extracellular stress defense in Haemophilus influenzae

    Article • Frontiers in Microbiology, April 2024, Frontiers

    Ulrike Kappler

  8. Combined functional genomic and metabolomic approaches identify new genes required for growth in human urine by multidrug-resistant Escherichia coli ST131

    Article • mBio, March 2024, ASM Journals

    Ulrike Kappler

  9. Hfe Permease and Haemophilus influenzae Manganese Homeostasis

    Article • ACS Infectious Diseases, January 2024, American Chemical Society (ACS)

    Ulrike Kappler

  10. Corrigendum: ‘A comparative genome analysis of the Bacillota (Firmicutes) class Dehalobacteriia’

    Article • Microbial Genomics, August 2023, Society for General Microbiology

    Ulrike Kappler

  11. Editorial: Rising stars in microbial physiology and metabolism: 2022

    Article • Frontiers in Microbiology, July 2023, Frontiers

    Dr Nicole R Buan, Ulrike Kappler

  12. Tolerance toHaemophilus influenzaeinfection in human epithelial cells: insights from a primary cell-based model

    Article • July 2023, Cold Spring Harbor Laboratory Press

    Ulrike Kappler

  13. Exploring the utility of virtual laboratory training tools

    Article • Microbiology Australia, July 2023, CSIRO Publishing

    Ulrike Kappler

  14. A comparative genome analysis of the Bacillota (Firmicutes) class Dehalobacteriia

    Article • Microbial Genomics, June 2023, Society for General Microbiology

    Ulrike Kappler

  15. Bacpath 16

    Article • Microbiology Australia, February 2023, CSIRO Publishing

    Ulrike Kappler

  16. Editorial: Insights in microbial physiology and metabolism: 2021

    Article • Frontiers in Microbiology, October 2022, Frontiers

    Ulrike Kappler

  17. AICAR transformylase/IMP cyclohydrolase (ATIC) is essential for de novo purine biosynthesis and infection by Cryptococcus neoformans

    Article • Journal of Biological Chemistry, October 2022, Elsevier

    Professor Bostjan Kobe, Ulrike Kappler

  18. The Peptide Methionine Sulfoxide Reductase (MsrAB) of Haemophilus influenzae Repairs Oxidatively Damaged Outer Membrane and Periplasmic Proteins Involved in Nutrient Acquisition and Virulence

    Article • Antioxidants, August 2022, MDPI AG

    Ulrike Kappler

  19. Access to highly specialized growth substrates and production of epithelial immunomodulatory metabolites determine survival of Haemophilus influenzae in human airway epithelial cells

    Article • PLoS Pathogens, January 2022, PLOS

    Ulrike Kappler

  20. Structural features of Cryptococcus neoformans bifunctional GAR/AIR synthetase may present novel antifungal drug targets

    Article • Journal of Biological Chemistry, October 2021, Elsevier

    Ulrike Kappler, Professor Bostjan Kobe

  21. Book Review

    Article • Journal of Inorganic Biochemistry, August 2021, Elsevier

    Ulrike Kappler

  22. The DmsABC Sulfoxide Reductase Supports Virulence in Non-typeable Haemophilus influenzae

    Article • Frontiers in Microbiology, July 2021, Frontiers

    Ulrike Kappler

  23. Allicin, the Odor of Freshly Crushed Garlic: A Review of Recent Progress in Understanding Allicin’s Effects on Cells

    Article • Molecules, March 2021, MDPI AG

    Ulrike Kappler

  24. The Alternative Sigma Factor RpoE2 Is Involved in the Stress Response to Hypochlorite and in vivo Survival of Haemophilus influenzae

    Article • Frontiers in Microbiology, February 2021, Frontiers

    Ulrike Kappler

  25. Active site architecture reveals coordination sphere flexibility and specificity determinants in a group of closely related molybdoenzymes

    Article • Journal of Biological Chemistry, January 2021, Elsevier

    Ulrike Kappler, Professor Bostjan Kobe

  26. Science meets Parliament 2021

    Article • Microbiology Australia, January 2021, CSIRO Publishing

    Ulrike Kappler

  27. Molybdenum Enzymes and How They Support Virulence in Pathogenic Bacteria

    Article • Frontiers in Microbiology, December 2020, Frontiers

    Ulrike Kappler, Professor Bostjan Kobe

  28. Peptide Methionine Sulfoxide Reductase from Haemophilus influenzae Is Required for Protection against HOCl and Affects the Host Response to Infection

    Article • ACS Infectious Diseases, June 2020, American Chemical Society (ACS)

    Ulrike Kappler

  29. Haemophilus influenzae Glucose Catabolism Leading to Production of the Immunometabolite Acetate Has a Key Contribution to the Host Airway–Pathogen Interplay

    Article • ACS Infectious Diseases, January 2020, American Chemical Society (ACS)

    Ulrike Kappler

  30. Control of Bacterial Sulfite Detoxification by Conserved and Species-Specific Regulatory Circuits

    Article • Frontiers in Microbiology, May 2019, Frontiers

    A/Prof Scott A Beatson, Ulrike Kappler

  31. Metabolic analyses reveal common adaptations in two invasive Haemophilus influenzae strains

    Article • Pathogens and Disease, March 2019, Oxford University Press (OUP)

    Ulrike Kappler

  32. New insights into the molecular physiology of sulfoxide reduction in bacteria

    Article • January 2019, Elsevier

    Ulrike Kappler

  33. Antifungal benzo[b]thiophene 1,1-dioxide IMPDH inhibitors exhibit pan-assay interference (PAINS) profiles

    Article • Bioorganic & Medicinal Chemistry, November 2018, Elsevier

    Professor Bostjan Kobe, Ulrike Kappler

  34. The central active site arginine in sulfite oxidizing enzymes alters kinetic properties by controlling electron transfer and redox interactions

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, January 2018, Elsevier

    Ulrike Kappler

  35. Bioelectrocatalysis of Sulfite Dehydrogenase from Sinorhizobium meliloti with Its Physiological Cytochrome Electron Partner

    Article • ChemElectroChem, September 2017, Wiley

    Ulrike Kappler

  36. Cryptococcus neoformansADS lyase is an enzyme essential for virulence whose crystal structure reveals features exploitable in antifungal drug design

    Article • Journal of Biological Chemistry, May 2017, American Society for Biochemistry & Molecular Biology (ASBMB)

    Professor Bostjan Kobe, Ulrike Kappler

  37. The Ecology of Acidophilic Microorganisms in the Corroding Concrete Sewer Environment

    Article • Frontiers in Microbiology, April 2017, Frontiers

    Ulrike Kappler

  38. Sulfur compound oxidation and carbon co-assimilation in the haloalkaliphilic sulfur oxidizers Thioalkalivibrio versutus and Thioalkalimicrobium aerophilum

    Article • Research in Microbiology, April 2017, Elsevier

    Ulrike Kappler

  39. Draft Genome Sequences of Three Nontypeable Strains of Haemophilus influenzae, C188, R535, and 1200, Isolated from Different Types of Disease

    Article • Genome Announcements, March 2017, ASM Journals

    Ulrike Kappler

  40. GMP Synthase Is Required for Virulence Factor Production and Infection byCryptococcus neoformans

    Article • Journal of Biological Chemistry, January 2017, American Society for Biochemistry & Molecular Biology (ASBMB)

    Professor Bostjan Kobe, Ulrike Kappler, Elizabeth C Corfield

  41. A unique large-scale undergraduate research experience in molecular systems biology for non-mathematics majors

    Article • Biochemistry and Molecular Biology Education, December 2016, Wiley

    Ulrike Kappler

  42. A Novel, Molybdenum-Containing Methionine Sulfoxide Reductase Supports Survival of Haemophilus influenzae in an In vivo Model of Infection

    Article • Frontiers in Microbiology, November 2016, Frontiers

    Ulrike Kappler

  43. Disruption of de Novo Adenosine Triphosphate (ATP) Biosynthesis Abolishes Virulence inCryptococcus neoformans

    Article • ACS Infectious Diseases, September 2016, American Chemical Society (ACS)

    Dr Mark S Butler, Professor Bostjan Kobe, Ulrike Kappler

  44. Effects of mutations in active site heme ligands on the spectroscopic and catalytic properties of SoxAX cytochromes

    Article • Journal of Inorganic Biochemistry, September 2016, Elsevier

    Ulrike Kappler

  45. Complete genome sequence of the haloalkaliphilic, obligately chemolithoautotrophic thiosulfate and sulfide-oxidizing γ-proteobacterium Thioalkalimicrobium cyclicum type strain ALM 1 (DSM 14477T)

    Article • Standards in Genomic Sciences, June 2016, Springer Science + Business Media

    A/Prof Scott A Beatson, Ulrike Kappler, Dr Nikos C Kyrpides

  46. CHAPTER 7. The Sulfite Oxidase Family of Molybdenum Enzymes

    Article • January 2016, Royal Society of Chemistry

    Ulrike Kappler

  47. Structural basis of interprotein electron transfer in bacterial sulfite oxidation

    Article • eLife, December 2015, eLife

    Ulrike Kappler

  48. Maturation of molybdoenzymes and its influence on the pathogenesis of non-typeable Haemophilus influenzae

    Article • Frontiers in Microbiology, November 2015, Frontiers

    Ulrike Kappler

  49. Electrochemically mediated enantioselective reduction of chiral sulfoxides

    Article • JBIC Journal of Biological Inorganic Chemistry, November 2014, Springer Science + Business Media

    Ulrike Kappler

  50. Sulfite-oxidizing enzymes

    Article • JBIC Journal of Biological Inorganic Chemistry, September 2014, Springer Science + Business Media

    Ulrike Kappler

  51. Polyphasic taxonomic revision of the Ralstonia solanacearum species complex: proposal to emend the descriptions of Ralstonia solanacearum and Ralstonia syzygii and reclassify current R. syzygii strains as Ralstonia syzygii subsp. syzygii subsp. nov., R...

    Article • INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, June 2014, Society for General Microbiology

    Ulrike Kappler

  52. Catalytic Voltammetry of the Molybdoenzyme Sulfite Dehydrogenase from Sinorhizobium meliloti

    Article • The Journal of Physical Chemistry B, June 2014, American Chemical Society (ACS)

    Ulrike Kappler

  53. Metabolic versatility in Haemophilus influenzae: a metabolomic and genomic analysis

    Article • Frontiers in Microbiology, March 2014, Frontiers

    Ulrike Kappler

  54. Electrochemically driven catalysis of Rhizobium sp. NT-26 arsenite oxidase with its native electron acceptor cytochrome c552

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, January 2014, Elsevier

    Ulrike Kappler

  55. Transformations of Dimethylsulfide

    Article • January 2014, Springer Science + Business Media

    Ulrike Kappler

  56. The Respiratory Arsenite Oxidase: Structure and the Role of Residues Surrounding the Rieske Cluster

    Article • PLOS One, August 2013, PLOS

    Ulrike Kappler

  57. Characterization of an ntrX Mutant of Neisseria gonorrhoeae Reveals a Response Regulator That Controls Expression of Respiratory Enzymes in Oxidase-Positive Proteobacteria

    Article • Journal of Bacteriology, April 2013, ASM Journals

    Professor Michael P Jennings, Ulrike Kappler

  58. The molybdoproteome of Starkeya novella – insights into the diversity and functions of molybdenum containing proteins in response to changing growth conditions

    Article • Metallomics, January 2013, Oxford University Press (OUP)

    Ulrike Kappler

  59. Metabolic adaptation and trophic strategies of soil bacteria—C1- metabolism and sulfur chemolithotrophy in Starkeya novella

    Article • Frontiers in Microbiology, January 2013, Frontiers

    Ulrike Kappler

  60. De novo GTP Biosynthesis Is Critical for Virulence of the Fungal Pathogen Cryptococcus neoformans

    Article • PLoS Pathogens, October 2012, PLOS

    Professor Bostjan Kobe, Ulrike Kappler

  61. The X-ray crystal structure of a pseudoazurin from Sinorhizobium meliloti

    Article • Journal of Inorganic Biochemistry, October 2012, Elsevier

    Professor Jules Mitchell Guss, Ulrike Kappler

  62. Complete genome sequence of the facultatively chemolithoautotrophic and methylotrophic alpha Proteobacterium Starkeya novella type strain (ATCC 8093T)

    Article • Standards in Genomic Sciences, September 2012, Springer Science + Business Media

    A/Prof Scott A Beatson, Ulrike Kappler, Dr Nikos C Kyrpides

  63. The bacterial SoxAX cytochromes

    Article • Cellular and Molecular Life Sciences, August 2012, Springer Science + Business Media

    Ulrike Kappler

  64. Insights into Structure and Function of the Active Site of SoxAX Cytochromes

    Article • Journal of Biological Chemistry, May 2011, American Society for Biochemistry & Molecular Biology (ASBMB)

    Ulrike Kappler

  65. Protein film voltametry of sulfite dehydrogenase variants

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, January 2011, Elsevier

    Trevor Rapson, Ulrike Kappler

  66. Bacterial sulfite-oxidizing enzymes

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, January 2011, Elsevier

    Ulrike Kappler

  67. How are “Atypical” Sulfite Dehydrogenases Linked to Cell Metabolism? Interactions between the SorT Sulfite Dehydrogenase and Small Redox Proteins

    Article • Frontiers in Microbiology, January 2011, Frontiers

    Ulrike Kappler

  68. Highly Sensitive and Stable Electrochemical Sulfite Biosensor Incorporating a Bacterial Sulfite Dehydrogenase

    Article • Analytical Chemistry, August 2010, American Chemical Society (ACS)

    Dr Jan Tkac, Ulrike Kappler

  69. EPR studies of sulfite dehydrogenase

    Article • JBIC Journal of Biological Inorganic Chemistry, January 2010, Springer Science + Business Media

    Trevor Rapson, Ulrike Kappler

  70. Sulfite oxidation in Sinorhizobium meliloti

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, December 2009, Elsevier

    Ulrike Kappler

  71. Probing the archaeal diversity of a mixed thermophilic bioleaching culture by TGGE and FISH

    Article • Systematic and Applied Microbiology, October 2009, Elsevier

    Ulrike Kappler

  72. Intramolecular Electron Transfer in Sulfite-Oxidizing Enzymes: Elucidating the Role of a Conserved Active Site Arginine

    Article • Biochemistry, February 2009, American Chemical Society (ACS)

    Trevor Rapson, Ulrike Kappler

  73. Exchangeable oxygens in the vicinity of the molybdenum center of the high-pH form of sulfite oxidase and sulfite dehydrogenase

    Article • Physical Chemistry Chemical Physics, January 2009, Royal Society of Chemistry

    Ulrike Kappler

  74. Molecular Basis for Enzymatic Sulfite Oxidation: HOW THREE CONSERVED ACTIVE SITE RESIDUES SHAPE ENZYME ACTIVITY

    Article • Journal of Biological Chemistry, November 2008, American Society for Biochemistry & Molecular Biology (ASBMB)

    Trevor Rapson, Ulrike Kappler

  75. Protein film voltametry of sulfite dehydrogenase

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, October 2008, Elsevier

    Trevor Rapson, Ulrike Kappler

  76. SoxAX Cytochromes, a New Type of Heme Copper Protein Involved in Bacterial Energy Generation from Sulfur Compounds

    Article • Journal of Biological Chemistry, June 2008, American Society for Biochemistry & Molecular Biology (ASBMB)

    Ulrike Kappler

  77. Using Anoxygenic Photosynthetic Bacteria for the Removal of Sulfide from Wastewater

    Article • January 2008, Springer Science + Business Media

    Ulrike Kappler

  78. PrrC, a Sco homologue from Rhodobacter sphaeroides , possesses thiol-disulfide oxidoreductase activity

    Article • FEBS Letters, September 2007, Wiley

    Professor Michael P Jennings, Ulrike Kappler

  79. Visualisation of pyrite leaching by selected thermophilic archaea: Nature of microorganism–ore interactions during bioleaching

    Article • Hydrometallurgy, August 2007, Elsevier

    Ulrike Kappler

  80. The NT-26 cytochrome c552 and its role in arsenite oxidation

    Article • Biochimica et Biophysica Acta (BBA) - Bioenergetics, February 2007, Elsevier

    Ulrike Kappler

  81. Archaeal diversity in two thermophilic chalcopyrite bioleaching reactors

    Article • Environmental Microbiology, November 2006, Wiley

    Ulrike Kappler

  82. Structure of the Active Site of Sulfite Dehydrogenase fromStarkeyanovella

    Article • Inorganic Chemistry, September 2006, American Chemical Society (ACS)

    Ulrike Kappler

  83. Kinetic and Structural Evidence for the Importance of Tyr236 for the Integrity of the Mo Active Site in a Bacterial Sulfite Dehydrogenase†

    Article • Biochemistry, August 2006, American Chemical Society (ACS)

    Ulrike Kappler

  84. Lasers—an effective artificial source of radiation for the cultivation of anoxygenic photosynthetic bacteria

    Article • Biotechnology and Bioengineering, January 2006, Wiley

    Ulrike Kappler

  85. Pulsed EPR Studies of a Bacterial Sulfite-Oxidizing Enzyme with pH-Invariant Hyperfine Interactions from Exchangeable Protons

    Article • Inorganic Chemistry, October 2005, American Chemical Society (ACS)

    Ulrike Kappler

  86. Molecular Basis of Intramolecular Electron Transfer in Sulfite-oxidizing Enzymes Is Revealed by High Resolution Structure of a Heterodimeric Complex of the Catalytic Molybdopterin Subunit and ac-Type Cytochrome Subunit

    Article • Journal of Biological Chemistry, April 2005, American Society for Biochemistry & Molecular Biology (ASBMB)

    Ulrike Kappler

  87. A recombinant diheme SoxAX cytochrome - Implications for the relationship between EPR signals and modified heme-ligands

    Article • FEBS Letters, April 2005, Wiley

    Ulrike Kappler

  88. Cultivation of photosynthetic bacteria using vertical-cavity surface-emitting lasers

    Article • January 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Ulrike Kappler

  89. Microbial Dimethylsulfoxide and Trimethylamine-N-Oxide Respiration

    Article • January 2005, Elsevier

    Ulrike Kappler

  90. Respiratory gene clusters of Metallosphaera sedula – differential expression and transcriptional organization

    Article • Microbiology, January 2005, Society for General Microbiology

    Ulrike Kappler

  91. Crystallization and preliminary X-ray analysis of sulfite dehydrogenase fromStarkeya novella

    Article • Acta Crystallographica Section D Biological Crystallography, October 2004, International Union of Crystallography

    Ulrike Kappler

  92. SoxAX Cytochromes

    Article • March 2004, Wiley

    Ulrike Kappler

  93. Intramolecular Electron Transfer in a Bacterial Sulfite Dehydrogenase

    Article • Journal of the American Chemical Society, December 2003, American Chemical Society (ACS)

    Ulrike Kappler

  94. Cytochromec551fromStarkeya novella

    Article • Journal of Biological Chemistry, November 2003, American Society for Biochemistry & Molecular Biology (ASBMB)

    Ulrike Kappler

  95. Direct Electrochemistry of a Bacterial Sulfite Dehydrogenase

    Article • Journal of the American Chemical Society, January 2003, American Chemical Society (ACS)

    Ulrike Kappler

  96. A system for the heterologous expression of complex redox proteins inRhodobacter capsulatus: characterisation of recombinant sulphite:cytochromecoxidoreductase fromStarkeya novella

    Article • FEBS Letters, September 2002, Wiley

    Ulrike Kappler

  97. Control of dimethylsulfoxide reductase expression in Rhodobacter capsulatus: the role of carbon metabolites and the response regulators DorR and RegA

    Article • Microbiology, February 2002, Society for General Microbiology

    Ulrike Kappler

  98. Enzymology and molecular biology of prokaryotic sulfite oxidation

    Article • FEMS Microbiology Letters, September 2001, Oxford University Press (OUP)

    Dr Christiane Dahl, Ulrike Kappler

  99. Evidence for two pathways of thiosulfate oxidation in Starkeya novella (formerly Thiobacillus novellus )

    Article • Archives of Microbiology, March 2001, Springer Science + Business Media

    Dr Christiane Dahl, Ulrike Kappler

  100. [32] Dissimilatory ATP sulfurylase from Archaeoglobus fulgidus

    Article • January 2001, Elsevier

    Dr Christiane Dahl, Ulrike Kappler

  101. Sulfite:Cytochrome c Oxidoreductase from Thiobacillus novellus. PURIFICATION, CHARACTERIZATION, AND MOLECULAR BIOLOGY OF A HETERODIMERIC MEMBER OF THE SULFITE OXIDASE FAMILY

    Article • Journal of Biological Chemistry, April 2000, American Society for Biochemistry & Molecular Biology (ASBMB)

    Dr Christiane Dahl, Ulrike Kappler

  102. Dissimilatory ATP sulfurylase from the hyperthermophilic sulfate reducer Archaeoglobus fulgidus belongs to the group of homo-oligomeric ATP sulfurylases

    Article • FEMS Microbiology Letters, May 1998, Oxford University Press (OUP)

    Dr Christiane Dahl, Ulrike Kappler

  103. Dissimilatory ATP sulfurylase from the hyperthermophilic sulfate reducer Archaeoglobus fulgidus belongs to the group of homo-oligomeric ATP sulfurylases

    Article • FEMS Microbiology Letters, May 1998, Oxford University Press (OUP)

    Dr Christiane Dahl, Ulrike Kappler