Sökning: "cellbiologi"

Visar resultat 36 - 40 av 819 avhandlingar innehållade ordet cellbiologi.

  1. 36. Regulatory mechanisms of amino acid-induced signaling in Saccharomyces cerevisiae

    Författare :Deike J. Omnus; Per O. Ljungdahl; Claudio De Virgilio; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Signal transduction; regulatory mechanisms; nutrient sensing; Saccharomyces cerevisiae; Cell Biology; cellbiologi;

    Sammanfattning : This thesis describes studies aimed at elucidating the molecular mechanisms that regulate the SPS (Ssy1-Ptr3-Ssy5) signal transduction pathway in the yeast Saccharomyces cerevisiae. This pathway is induced by extracellular amino acids and facilitates their uptake. LÄS MER

  3. 37. Post-translational modifications of eukaryotic protein synthesis elongation factor-2 : a study in relation to ageing

    Författare :Bent Riis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cytologi; Cellbiologi;

    Sammanfattning : .... LÄS MER

  4. 38. In vivo analysis of amino acid permease folding in yeast

    Författare :Andreas Ring; Per O. Ljungdahl; George Diallinas; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nutrient sensing; signal transduction; endoprotease; subcellular fractionation; membrane-localized chaperone; amino acid permease; endoplasmic reticulum; membrane protein folding; Saccharomyces cerevisiae; Cell Biology; cellbiologi;

    Sammanfattning : Plasma membrane (PM) proteins are critical for cells to respond to environmental cues, such as the availability of nutrients. The yeast Saccharomyces cerevisiae is able to sense extracellular amino acids using the SPS sensing system. LÄS MER

  5. 39. Studies of leukotriene C4 synthase expression and regulation in chronic myeloid leukaemia

    Författare :Cecilia Roos; Susanne Tornhamre; Anita Sjölander; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; leukotriene C4 synthase; chronic myeloid leukaemia; p210 BCR-ABL; myelopoiesis; imatinib mesylate; Cell biology; Cellbiologi; Biomedical Sciences; Biomedicinsk vetenskap;

    Sammanfattning : Leukotriene (LT) C4 is generated through conjugation of LTA4 with glutathione by the actions of leukotriene C4 synthase (LTC4S). This biologically potent mediator of asthma and inflammation has also been suggested to play a regulatory role in human myelopoiesis and is overproduced by blood and bone marrow cells from patients with chronic myeloid leukaemia (CML). LÄS MER

  7. 40. Regulation of RNA polymerase I and RNA polymerase III transcription by the chromatin remodelling complex B-WICH

    Författare :Fatemeh Sadeghifar; Ann-Kristin Östlund Farrants; Magdalena Boguta; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; B-WICH; Chromatin remodelling; ribosomal genes; transcription; Cell Biology; cellbiologi;

    Sammanfattning : Ribosomal biogenesis is an important process which determines the rate of cell growth and is involved in cell response to proliferation, differentiation, cellular nutritional state and stress. The chromatin remodelling complex B-WICH composed of WSTF, SNF2h and NM1 is involved in transcription by the RNA pol I and RNA pol III. LÄS MER