Sökning: "structural biology"

Visar resultat 31 - 35 av 627 avhandlingar innehållade orden structural biology.

  1. 31. Evasion and Attack: Structural Studies of a Bacterial Albumin-binding Protein and of a Cephalosporin Biosynthetic Enzyme

    Författare :Sara Lejon; Janos Hajdu; Karin Valegård; Martin Noble; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; human serum albumin; GA module; albumin-binding; Finegoldia magna; deacetylcephalosporin C acetyltransferase; cephalosporin C; antibiotic; beta-lactam; biosynthesis; Acremonium chrysogenum; X-ray crystallography; Structural biology; Strukturbiologi;

    Sammanfattning : This thesis describes the crystal structures of two proteins in the context of combatting bacterial infections. The GA module is a bacterial albumin-binding domain from a surface protein expressed by pathogenic strains of the human commensal bacterium Finegoldia magna. LÄS MER

  3. 32. Water transport regulation: Biochemical and structural analyses of eukaryotic aquaporins

    Författare :Anna Maria Nyblom; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; X-ray crystallography; regulation; aquaporins; function; structure; membrane proteins;

    Sammanfattning : Water is essential for all living beings. Aquaporins are water channel proteins embedded in the membranes of cells. These macromolecules are found in all kingdoms of life and they control water homeostasis by diverse regulation mechanisms. LÄS MER

  4. 33. Structural Decorations in Viruses : Unraveling Acquired Functional Structures in Icosahedral RNA Virus Capsids

    Författare :Han Wang; Kenta Okamoto; Sarah Butcher; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Viruses; RNA viruses; capsid; structure; cryo-EM; Molekylär biovetenskap; Molecular Life Sciences;

    Sammanfattning : Viruses have a profound impact worldwide, posing challenges to animal welfare, agriculture, human health, and the ecosystem. This thesis examines the realm of non-enveloped icosahedral double-stranded (ds)RNA and single-stranded (ss)RNA viruses through three studies. LÄS MER

  5. 34. Enzymes in the Mycobacterium tuberculosis MEP and CoA Pathways Targeted for Structure-Based Drug Design

    Författare :Christofer Björkelid; T. Alwyn Jones; Torsten Unge; Sherry L. Mowbray; William N. Hunter; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Tuberculosis; Mycobacterium tuberculosis; MEP pathway; CoA pathway; drug development; crystal structure; DXR; IspD; PanK; Biokemi; Biochemistry; Molecular Biology; Molekylärbiologi;

    Sammanfattning : Tuberculosis, caused by the pathogenic bacteria Mycobacterium tuberculosis, is one of the most widespread and deadly infectious diseases today. Treatment of tuberculosis relies on antibiotics that were developed more than 50 years ago. These are now becoming ineffective due to the emergence of antibiotic resistant strains of the bacteria. LÄS MER

  7. 35. The structural basis for the catalytic specificity of manganese lipoxygenases : 3D structure analysis of the lipoxygenase of Magnaporthe oryzae

    Författare :Anneli Wennman; Ernst H. Oliw; Marcia Newcomer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; oxylipin; lipoxygenase; crystal structure; crystallography; HPLC; mass spectrometry; yeast; site-directed mutagenesis; fungi; Biochemical Pharmacology; Biokemisk farmakologi;

    Sammanfattning : Lipoxygenases (LOX) catalyze regio- and stereospecific oxygenation of polyunsaturated fatty acids to hydroperoxides. These hydroperoxides are further metabolized to leukotrienes and lipoxins in mammals, and are involved in asthma and inflammation. LOX of animals and plants contain iron as catalytic metal (FeLOX). LÄS MER