Sökning: "S. typhimurium"

Visar resultat 11 - 15 av 44 avhandlingar innehållade orden S. typhimurium.

  1. 11. Formation of Thiolated Nucleosides in tRNA in Salmonella enterica serovar typhimurium

    Författare :Hans Lundgren; Glenn Björk; Charles Lauhon; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; : tRNA; modified nucleosides; thiolation; sulfur metabolism; Salmonella; Molecular biology; Molekylärbiologi;

    Sammanfattning : The presence and synthesis of transfer RNA (tRNA) is highly conserved in all organisms and a lot of genetic material is dedicated to its synthesis. tRNA contains a large number of modified nucleosides and several diverse functions have been found but much about their function is still unknown. LÄS MER

  3. 12. Regulation of biofilm formation in Salmonella typhimurium and Escherichia coli Nissle 1917

    Författare :Cláudia Monteiro; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Bacteria have the ability to grow in cell communities designated biofilms. This mode of growth is widespread and offers numerous advantages to the bacteria in terms of survival, persistence and propagation. Bacteria have developed different ways of building up a biofilm. LÄS MER

  4. 13. Function of wobble nucleoside modifications in tRNAs of Salmonella enterica Serovar Typhimurium

    Författare :Peng Chen; Glenn R. Björk; Paul Agris; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; tRNA; wobble nucleoside; frameshifting; translation; Molekylärbiologi; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : Transfer RNA from all organisms has modified nucleosides and position 34 (the wobble position) is one of the most extensively modified positions. Some wobble nucleoside modifications restrict codon choice (e.g. 5-methylaminomethyl-2-thiouridine, mnm5s2U) while some extend the decoding capacity (e. LÄS MER

  5. 14. Oxidoreductases and RNA degradosome controlling virulence-associated traits of Salmonella enterica serovar Typhimurium

    Författare :Naeem Anwar; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The oxidative stress response is a fundamental and primitive mode of innate immune defense in nearly all forms of life. The host oxidative stress response becomes truly important and effective especially against intracellular pathogens such as Salmonella. Pathogens have evolved diverse mechanisms to withstand the oxidative responses. LÄS MER

  7. 15. Regulatory networks of c-di-GMP signalling involved in biofilm formation, motility and host pathogen interactions in Salmonella typhimurium

    Författare :Irfan Ahmad; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Adaptation to altered environmental conditions is one of the fundamental bacterial characteristics. The ubiquitous second messenger c-di-GMP plays a key role to adopt bacterial behaviour. Transition from motility to sessility and from acute infection to chronic infection is regulated by c-di-GMP signalling in many bacteria. LÄS MER