All Stories

  1. Bacterial flagella hijack type IV pili proteins to control motility

    Article • Proceedings of the National Academy of Sciences, January 2024, Proceedings of the National Academy of Sciences

    Dr Karen Ottemann

  2. Chemotaxis Allows Bacteria To Overcome Host-Generated Reactive Oxygen Species That Constrain Gland Colonization

    Article • Infection and Immunity, March 2018, ASM Journals

    Dr Karen Ottemann

  3. The Helicobacter pylori Autotransporter ImaA Tempers the Bacterium's Interaction with α5β1 Integrin

    Article • Infection and Immunity, October 2016, ASM Journals

    Dr Karen Ottemann

  4. Spatial and Temporal Shifts in Bacterial Biogeography and Gland Occupation during the Development of a Chronic Infection

    Article • mBio, October 2016, ASM Journals

    Dr Karen Ottemann

  5. The Helicobacter pylori CZB Cytoplasmic Chemoreceptor TlpD Forms an Autonomous Polar Chemotaxis Signaling Complex That Mediates a Tactic Response to Oxidative Stress

    Article • Journal of Bacteriology, March 2016, ASM Journals

    Dr Karen Ottemann

  6. The use of murine-derived fundic organoids in studies of gastric physiology

    Article • The Journal of Physiology, February 2015, Wiley

    Dr Karen Ottemann

  7. CD44 Plays a Functional Role in Helicobacter pylori-induced Epithelial Cell Proliferation

    Article • PLoS Pathogens, February 2015, PLOS

    Dr Karen Ottemann

  8. Helicobacter pylori-induced Sonic Hedgehog Expression is Regulated by NFκB Pathway Activation: The Use of a Novel In vitro Model to Study Epithelial Response to Infection

    Article • Helicobacter, December 2014, Wiley

    Dr Karen Ottemann

  9. Internal Sense of Direction: Sensing and Signaling from Cytoplasmic Chemoreceptors

    Article • Microbiology and Molecular Biology Reviews, November 2014, ASM Journals

    Dr Karen Ottemann

  10. Motility and Chemotaxis Mediate the Preferential Colonization of Gastric Injury Sites by Helicobacter pylori

    Article • PLoS Pathogens, July 2014, PLOS

    Dr Karen Ottemann

  11. Regulation of Cholera Toxin Expression

    Article • April 2014, ASM Journals

    Dr Karen Ottemann

  12. Structural basis of FliG-FliM interaction inHelicobacter pylori

    Article • Molecular Microbiology, April 2013, Wiley

    Dr Karen Ottemann

  13. The Degree of Helicobacter pylori-Triggered Inflammation Is Manipulated by Preinfection Host Microbiota

    Article • Infection and Immunity, February 2013, ASM Journals

    Annah Rolig, Dr Karen Ottemann

  14. A supplemented soft agar chemotaxis assay demonstrates the Helicobacter pylori chemotactic response to zinc and nickel

    Article • Microbiology, November 2012, Society for General Microbiology

    Dr Karen Ottemann

  15. Helicobacter pylori Requires TlpD-Driven Chemotaxis To Proliferate in the Antrum

    Article • Infection and Immunity, July 2012, ASM Journals

    Annah Rolig, Dr Karen Ottemann

  16. The Helicobacter pylori Autotransporter ImaA (HP0289) Modulates the Immune Response and Contributes to Host Colonization

    Article • Infection and Immunity, May 2012, ASM Journals

    Dr Karen Ottemann

  17. Bacterial chemotaxis modulates host cell apoptosis to establish a T-helper cell, type 17 (Th17)-dominant immune response in Helicobacter pylori infection

    Article • Proceedings of the National Academy of Sciences, November 2011, Proceedings of the National Academy of Sciences

    Annah Rolig, Dr Karen Ottemann

  18. Motility and Chemotaxis inCampylobacterandHelicobacter

    Article • Annual Review of Microbiology, October 2011, Annual Reviews

    Dr Karen Ottemann

  19. ChePep Controls Helicobacter pylori Infection of the Gastric Glands and Chemotaxis in the Epsilonproteobacteria

    Article • mBio, July 2011, ASM Journals

    Dr Karen Ottemann

  20. Identification of a Chemoreceptor Zinc-Binding Domain Common to Cytoplasmic Bacterial Chemoreceptors

    Article • Journal of Bacteriology, July 2011, ASM Journals

    Dr Karen Ottemann

  21. Helicobacter pylori perceives the quorum-sensing molecule AI-2 as a chemorepellent via the chemoreceptor TlpB

    Article • Microbiology, May 2011, Society for General Microbiology

    Dr Karen Ottemann

  22. Recombination-Based In Vivo Expression Technology Identifies Helicobacter pylori Genes Important for Host Colonization

    Article • Infection and Immunity, November 2010, ASM Journals

    Dr Karen Ottemann

  23. CheV: CheW-like coupling proteins at the core of the chemotaxis signaling network

    Article • Trends in Microbiology, November 2010, Elsevier

    Dr Karen Ottemann

  24. A remote CheZ orthologue retains phosphatase function

    Article • Molecular Microbiology, May 2010, Wiley

    Dr Karen Ottemann

  25. The chemical-in-plug bacterial chemotaxis assay is prone to false positive responses

    Article • BMC Research Notes, March 2010, Springer Science + Business Media

    Dr Karen Ottemann

  26. Functional Analysis of the Helicobacter pylori Flagellar Switch Proteins

    Article • Journal of Bacteriology, September 2009, ASM Journals

    Dr Karen Ottemann

  27. A fixed-time diffusion analysis method determines that the three cheV genes of Helicobacter pylori differentially affect motility

    Article • Microbiology, April 2009, Society for General Microbiology

    Dr Karen Ottemann

  28. The Complete Genome Sequence of Helicobacter pylori Strain G27

    Article • Journal of Bacteriology, October 2008, ASM Journals

    Dr Karen Ottemann

  29. Recombination-Based In Vivo Expression Technology Identifies Helicobacter pylori Genes Important for Host Colonization

    Article • Infection and Immunity, September 2008, ASM Journals

    Dr Karen Ottemann

  30. Experimental analysis of Helicobacter pylori transcriptional terminators suggests this microbe uses both intrinsic and factor-dependent termination

    Article • Molecular Microbiology, December 2007, Wiley

    Dr Karen Ottemann

  31. Helicobacter pylori Chemotaxis Modulates Inflammation and Bacterium-Gastric Epithelium Interactions in Infected Mice

    Article • Infection and Immunity, May 2007, ASM Journals

    Dr Karen Ottemann

  32. Proteomic mapping of a suppressor of non-chemotactic cheW mutants reveals that Helicobacter pylori contains a new chemotaxis protein

    Article • Molecular Microbiology, November 2006, Wiley

    Dr Karen Ottemann

  33. Analysis of Vibrio cholierae ToxR function by construction of novel fusion proteins

    Article • Molecular Microbiology, October 2006, Wiley

    Dr Karen Ottemann

  34. Proteomic mapping of a suppressor of non-chemotactic cheW mutants reveals that Helicobacter pylori contains a new chemotaxis protein

    Article • Molecular Microbiology, August 2006, Wiley

    Dr Karen Ottemann

  35. Colonization and Inflammation Deficiencies in Mongolian Gerbils Infected by Helicobacter pylori Chemotaxis Mutants

    Article • Infection and Immunity, March 2005, ASM Journals

    Dr Karen Ottemann

  36. Chemotaxis Plays Multiple Roles during Helicobacter pylori Animal Infection

    Article • Infection and Immunity, February 2005, ASM Journals

    Dr Karen Ottemann

  37. Two Predicted Chemoreceptors of Helicobacter pylori Promote Stomach Infection

    Article • Infection and Immunity, October 2002, ASM Journals

    Dr Karen Ottemann

  38. Laboratory Performance Appraisal

    Article • Science of Aging Knowledge Environment, September 2002, American Association for the Advancement of Science

    Dr Karen Ottemann

  39. Helicobacter pylori Uses Motility for Initial Colonization and To Attain Robust Infection

    Article • Infection and Immunity, April 2002, ASM Journals

    Dr Karen Ottemann

  40. A Piston Model for Transmembrane Signaling of the Aspartate Receptor

    Article • Science, September 1999, American Association for the Advancement of Science

    Dr Karen Ottemann

  41. Converting a transmembrane receptor to a soluble receptor: Recognition domain to effector domain signaling after excision of the transmembrane domain

    Article • Proceedings of the National Academy of Sciences, October 1997, Proceedings of the National Academy of Sciences

    Dr Karen Ottemann

  42. Roles for motility in bacterial–host interactions

    Article • Molecular Microbiology, June 1997, Wiley

    Dr Karen Ottemann