Sökning: "Biokemi och Strukturbiologi"

Visar resultat 16 - 20 av 218 avhandlingar innehållade orden Biokemi och Strukturbiologi.

  1. 16. Targeting Infectious Disease : Structural and functional studies of proteins from two RNA viruses and Mycobacterium tuberculosis

    Författare :Anna M. Jansson; T. Alwyn Jones; Sherry L. Mowbray; E. Yvonne Jones; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; RNA virus; coronavirus; alphacoronavirus; nsp1; TGEV; flavivirus; Modoc virus; NS5; methyltransferase; mRNA capping; Mycobacterium tuberculosis; tuberculosis; 1-deoxy-D-xylulose 5-phosphate reductoisomerase; DXR; fosmidomycin analogues; MEP pathway; drug development; xray-crystallography; Biology with specialization in Structural Biology; Biologi med inriktning mot strukturbiologi; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi; Biokemi; Biochemistry; Medicinal Chemistry; Läkemedelskemi;

    Sammanfattning : The recent emergence of a number of new viral diseases as well as the re-emergence of tuberculosis (TB), indicate an urgent need for new drugs against viral and bacterial infections.Coronavirus nsp1 has been shown to induce suppression of host gene expression and interfere with host immune response. LÄS MER

  3. 17. Ribosomal RNA Modification Enzymes : Structural and functional studies of two methyltransferases for 23S rRNA modification in Escherichia coli

    Författare :Avinash S. Punekar; Maria Selmer; Martino Bolognesi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Escherichia coli; ribosome biogenesis; ribosome assembly; ribosomal RNA; peptidyltransferase center; domain V; post-transcriptional modification; methyltransferases; S-adenosyl-methionine; RlmM; Cm2498; RlmJ; m6A2030; X-ray crystallography; substrate recognition; substrate specificity; catalytic mechanism; evolution; Biology with specialization in Structural Biology; Biologi med inriktning mot strukturbiologi; Biokemi; Biochemistry;

    Sammanfattning : Escherichia coli ribosomal RNA (rRNA) is post-transcriptionally modified by site-specific enzymes. The role of most modifications is not known and little is known about how these enzymes recognize their target substrates. LÄS MER

  4. 18. Of spiders, bugs, and men : Structural and functional studies of proteins involved in assembly

    Författare :Wangshu Jiang; Stefan D Knight; Steve J. Matthews; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Protein assembly; sulfate transporter; crystallography; Proteus mirabilis; fimbriae; adhesin; urinary tract infection; biofilm; spider silk; asymmetric dimer; Bri2; BRICHOS; molecular chaperone; Alzheimer s disease; amyloid; Biology with specialization in Structural Biology; Biologi med inriktning mot strukturbiologi;

    Sammanfattning : Protein assembly enables complex machineries while being economical with genetic information. However, protein assembly also constitutes a potential threat to the host, and needs to be carefully regulated.Sulfate is a common source of sulfur for cysteine synthesis in bacteria. LÄS MER

  5. 19. Thermodynamical and structural properties of proteins and their role in food allergy

    Författare :Louise Rundqvist; Göran Larsson; Göran Karlsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Protein folding; NMR; Food allergy; allergen; protein interactions; medicinsk biokemi; Medical Biochemistry;

    Sammanfattning : Proteins are important building blocks of all living organisms. They are composed of a defined sequence of different amino acids, and fold into a specific three-dimensional, ordered structure. The three-dimensional structure largely determines the function of the protein, but protein function always requires motion. LÄS MER

  7. 20. Structure Function Relationships in Pyrimidine Degrading and Biocatalytic Enzymes, and Their Implications for Cancer Therapy and Green Chemistry

    Författare :Dirk Maurer; Doreen Dobritzsch; Mikael Widersten; Rikkert Wierenga; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; β-Ureidopropionase; Dihydropyrimidine Dehydrogenase; Alcohol Dehydrogenase; Pyrimidine catabolism; 5-Fluorouracil; CASTing; X-ray Crystallography;

    Sammanfattning : This thesis includes the work of two separate projects, studies on pyrimidine degrading enzymes and studies on in vitro evolved enzymes. The common denominator of both projects was the use of structural information to explain functional effects, observed in the studied biocatalysts. LÄS MER