Sökning: "repression"

Visar resultat 26 - 30 av 282 avhandlingar innehållade ordet repression.

  1. 26. Global Regulation of Snf1 in Saccharomyces cerevisiae: A case study of experimental systems biology

    Författare :Jie Zhang; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AMP-activated protein kinase AMPK ; glucose derepression; energy homeostasis; target of rapamycin complex 1 TORC1 ; catabolite repression; Snf1;

    Sammanfattning : Cells commonly face environmental changes and have evolved various regulatory mechanisms to adjust their metabolism accordingly. One such key regulator in S. cerevisiae is the Snf1 kinase, which belongs to the conserved AMP-activated protein kinase (AMPK) family in all eukaryotes. LÄS MER

  3. 27. Characterisation of the Clp Proteins in Arabidopsis thaliana

    Författare :Bo Zheng; Adrian K. Clarke; Vaughan Hurry; Cecilia Sundby-Emanuelsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; Arabidopsis; molecular chaperone; protein degradation; protease; Clp Hsp100; ClpP; stress response; antisense repression; chloroplast development; Växtfysiologi; Plant physiology; Växtfysiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : Unlike in the greenhouse, plants need to cope with many environmental stresses under natural conditions. Among these conditions are drought, waterlogging, excessive or too little light, high or low temperatures, UV irradiation, high soil salinity, and nutrient deficiency. LÄS MER

  4. 28. Three Subfamilies of KRAB Zinc Finger Proteins : A Structural, Functional and Evolutionary Analysis

    Författare :Charlotta Mark; Lars Hellman; Fredrik Öberg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Krüppel zinc finger; KRAB; TIF1β; transcriptional repression; Biologi; Biology; Biologi; Molecular Immunology; molekylär immunologi;

    Sammanfattning : Krüppel-related zinc finger proteins constitute the largest single class of transcription factors within the human genome. Members of this protein family have the ability to either activate or repress transcription depending on the presence of specific activator or repressor domains within the protein. LÄS MER

  5. 29. The interplay of transcription and chromatin regulation during embryonic development

    Författare :George Hunt; Mattias Mannervik; Eileen Furlong; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transcription; chromatin; chromatin-modifiers; p300 CBP; Polycomb repression; promoter proximal Pol II pausing; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : A fascinating aspect of multicellular development is the production of diverse cell types from an identical DNA genome, which depends on the ability to express different complements of genes across space and time. This thesis tries to address how the genome, within the chromatin structure that envelops it, is regulated to direct this complex process. LÄS MER

  7. 30. Studies of Budding Yeast Transcription Factors Acting Downstream of Nutrient Signaling Pathways

    Författare :Niklas Nordberg; Hans Ronne; Anders Blomberg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Budding yeast; nutrient signaling; glucose repression; aging; caloric restriction; JmjC; histone demethylation; Mig1; Mig2; Mig3; Gis1; Rph1; Molekylär genetik; Molecular Genetics;

    Sammanfattning : Being able to respond to extracellular cues such as nutrients and growth factors is of vital importance to all living cells. Pathways have therefore evolved which can sense the extracellular status, transmit a signal through the cell and affect gene expression, which ultimately enables adaptation. LÄS MER