Sökning: "regulon"

Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet regulon.

  1. 1. Cold Acclimation : Dissecting the plant low temperature signaling pathway using functional genomics

    Författare :Catherine Benedict; Vaughan Hurry; Matsuo Uemura; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cold acclimation; functional genomics; microarray; Populus tremula; Arabidopsis thaliana; gene voting; regulon; enhancer-blocking; Plant physiology; Växtfysiologi;

    Sammanfattning : The physiological process of cold acclimation protects plants native to the temperate regions of the world from the deleterious effects of low and freezing temperatures. This is achieved by a series of transcriptional, regulatory, and metabolic changes that enable continued growth and survival. Within minutes of exposure to temperatures below ca. LÄS MER

  3. 2. General stress proteins: Novel function and signals for induction of stationary phase genes in E.coli

    Författare :Örjan Persson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; general stress response; universal stress protein; sigma S; DNA damage; fructose-6-phosphate; ruvC;

    Sammanfattning : Survival during conditions when nutrients become scarce requires adaptation and expression of genes for maintenance in order for the cell to survive. Among the numerous proteins involved in adaptation and regulation under these conditions, the stationary phase sigma factor, σS, and the Universal stress proteins contribute to survival and bestow the cell with general stress protective functions during growth arrest. LÄS MER

  4. 3. Regulatory pathways and virulence inhibition in Listeria monocytogenes

    Författare :Christopher Andersson; Jörgen Johansson; Debra Milton; Åke Forsberg; Claude Parsot; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Listeria monocytogenes; PrfA; ActA; infection; molekylärbiologi; Molecular Biology;

    Sammanfattning : Listeria monocytogenes is a rod-shaped Gram positive bacterium. It generally exist ubiquitously in nature, where it lives as a saprophyte. Occasionally it however enters the food chain, from where it can be ingested by humans and cause gastro-intestinal distress. In immunocompetent individuals L. LÄS MER

  5. 4. Molecular Markers and Hypoxia in Renal Cell Carcinoma

    Författare :Roger de Alwis; Avdelningen för translationell cancerforskning; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kidney cancer; CTC; RCC; Hypoxia; SEMA5B; Prognostic markers;

    Sammanfattning : Renal cell carcinomas (RCCs) are a group of tumours that arise from the nephron within the kidney. They are characterised by an indolent growth pattern and do not display overt clinical symptoms in patients with early to locally advanced tumours. LÄS MER

  7. 5. Dynamics of the Bacterial Genome : Rates and Mechanisms of Mutation

    Författare :Sanna Koskiniemi; Dan Andersson; Diarmaid Hughes; Ivan Matic; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bacteria; bacterial evolution; genome reduction; gene loss; serial passage; DNA homology; tranlesion DNA polymerase; stress; Microbiology; Mikrobiologi; Bacteriology; Bakteriologi; Evolutionary Genetics; Evolutionär genetik; Mikrobiologi; Microbiology;

    Sammanfattning : Bacterial chromosomes are highly dynamic, continuously changing with respect to gene content and size via a number of processes, including deletions that result in gene loss. How deletions form and at what rates has been the focus of this thesis. In paper II we investigated how chromosomal location affects chromosomal deletion rates in S. LÄS MER