Search for dissertations about: "A-tracts"

Found 4 swedish dissertations containing the word A-tracts.

  2. 1. Studies on nuclear factor 1 binding to nucleosomal DNA

    Author : Patrik Blomquist; Karolinska Institutet; Karolinska Institutet; []
    Keywords : nuclear factor 1; nucleosome; glucocorticoid receptor; triplex DNA; the SWISNF complex; A-tracts; MMTV LTR;

    Abstract : The organisation of DNA into chromatin will influence on transcriptional regulation. The first event in transcriptional activation is the binding of transcription factors to specific binding sites in the regulatory regions of the gene. READ MORE

  4. 2. Evolutionary Processes and Genome Dynamics in Host-Adapted Bacteria

    Author : Björn Nystedt; Siv Andersson; David Guttman; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; molecular evolution; pathogen; secretion system; Bartonella; Buchnera; Blochmannia; Helicobacter; Bioinformatics; Bioinformatik; Evolutionary Genetics; evolutionär genetik;

    Abstract : Many bacteria live in close association with other organisms such as plants and animals, with important implications for both health and disease. This thesis investigates bacteria that are well adapted to live inside an animal host, and describes the molecular evolutionary processes underlying host-adaptation, based on bacterial genome comparisons. READ MORE

  5. 3. Nuclear Magnetic Relaxation Dispersion and Pulsed-Gradient Spin Echo Studies of Biomolecular Solutions and Amphiphilic Liquid Crystals

    Author : Haukur Jóhannesson; Biofysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stretched dispersion; DNA hydration; solvent dynamics; NMRD; Random flight simulation; PGSE; Diffusion; Nematic phase; NMR; Amphiphilic liquid crystals; Physical chemistry; Fysikalisk kemi;

    Abstract : Biomolecular solutions and amphiphilic liquid crystals are studied by Nuclear Magnetic Resonance Dispersion (NMRD) and Pulsed-Gradient Spin Echo (PGSE) respectively. A random-flight simulation is performed to obtain the obstructing factors for self-diffusion of small molecules in macrofluids. READ MORE

  6. 4. Chromatin Structure: Nucleosome Formation and Positioning

    Author : Hans R. Widlund; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; centromere; formation; chromatin; nucleosome; telomere;

    Abstract : In all eukaryotic cells the DNA is complexed with a group of highly basic histone proteins forming nucleosomes and higher order chromatin structures. In the nucleosome the DNA is tightly wrapped, almost two turns, around an octamer of histone proteins. READ MORE