Sökning: "Yersinia"

Visar resultat 16 - 20 av 61 avhandlingar innehållade ordet Yersinia.

  1. 16. Molecular mechanism of plasmid copy number control in Yersinia

    Författare :Tifaine Héchard; Helen Wang; Javier Pizarro-Cerda; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia pseudotuberculosis; plasmid copy number; T3SS; infection; ddPCR; Mikrobiologi; Microbiology;

    Sammanfattning : The ability of pathogenic bacteria to cause disease depends on various virulence mechanisms. The three pathogenic species of Yersinia use a type III secretion system (T3SS) to translocate effector proteins into host cells and disrupt the immune system. This T3SS is encoded on a 70kb, low-copy, virulence plasmid. LÄS MER

  3. 17. Host-pathogen interactions during Campylobacter and Yersinia infections

    Författare :Nayyer Taheri; Anna Fahlgren; Maria Fällman; Sun Nyunt Wai; Elena Vikström; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Campylobacter jejuni; Yersinia pseudotuberculosis; OMV; bile; temperature; proteomic;

    Sammanfattning : The innate immune system is known for protecting the host against invading pathogens, for instance enteropathogens infecting the gastrointestinal tract. The production of e.g. antimicrobial peptides, cytokines, and chemokines by innate immune cells and intestinal epithelial cells contribute to bacterial clearance. LÄS MER

  4. 18. Coordinating type III secretion system biogenesis in Yersinia pseudotuberculosis

    Författare :Jyoti Mohan Gurung; Matthew S Francis; Maria Fällman; Dirk Linke; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia pseudotuberculosis; type III secretion system; YscX; YscY; YopN; TyeA; secretion signal; N-terminal region; site-directed mutagenesis; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Sammanfattning : Various Gram-negative bacteria utilize type III secretion system (T3SS) to deliver effectors into eukaryotic host cells and establish mutualistic or pathogenic interactions. An example is the Ysc-Yop T3SS of pathogenic Yersinia species. LÄS MER

  5. 19. Type III secretion- the various functions of the translocon operon in bacterial pathogenesis

    Författare :Jeanette E Bröms; Åke Forsberg; Michael Koomey; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; Yersinia; Pseudomonas aeruginosa; type III secretion; chaperone; translocation; regulation; lcrGVHyopBD; pcrGVHpopBD; Molekylärbiologi; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : In order to establish colonisation of a human host, pathogenic Yersinia use a type III protein secretion system to directly intoxicate host immune cells. Activation of this system requires target cell contact and is a highly regulated process. LÄS MER

  7. 20. A strategy to identify novel antimicrobial compounds : a bioinformatics and HTS approach

    Författare :Sara Garbom; Hans Wolf-Watz; Dan Andersson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Antibiotic resistance; Yersinia; T3SS; virulence associated genes; VagH; HemK PrmC; Release factors; small molecular inhibitors; HTS; Medical microbiology; Medicinsk mikrobiologi;

    Sammanfattning : Bacterial infections are again becoming difficult to treat because the microbes are growing increasingly resistant to the antibiotics in use today. The need for novel antimicrobial compounds is urgent and to achieve this new targets are crucial. In this thesis we present a strategy for identification of such targets via a bioinformatics approach. LÄS MER