Search for dissertations about: "Nucleotide sugars"

Found 5 swedish dissertations containing the words Nucleotide sugars.

  1. 1. Nucleotide-Dependent Processes in the Thylakoid Lumen of Plant Chloroplasts

    University dissertation from Institutionen för fysik, kemi och biologi

    Author : Björn Lundin; Linköpings universitet.; Linköpings universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; plant; chloroplast; thylakoid; nucleotide; PSII; PsbO; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : Plants, algae and photosynthetic bacteria are able to harvest the sunlight and use its energy to transform water and carbon dioxide to carbohydrate molecules and oxygen, both important to sustain life on Earth. This process is called photosynthesis and is the route by which almost all energy enters the biosphere. READ MORE

  2. 2. UDP-sugar metabolizing pyrophosphorylases in plants formation of precursors for essential glycosylation-reactions

    University dissertation from Umeå : Umeå Universitet

    Author : Daniel Decker; Umeå universitet.; [2017]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical library screening; Cell wall synthesis; Glycosylation; Nucleotide sugars; Oligomerization; Protein structure; Reverse chemical genetics; Sugar activation; UDP-sugar synthesis; biokemisk farmakologi; biokemisk farmakologi; biokemi; Biochemistry; biology; biologi; molekylärbiologi; Molecular Biology;

    Abstract : UDP-sugar metabolizing pyrophosphorylases provide the primary mechanism for de novo synthesis of UDP-sugars, which can then be used for myriads of glycosyltranferase reactions, producing cell wall carbohydrates, sucrose, glycoproteins and glycolipids, as well as many other glycosylated compounds. The pyrophosphorylases can be divided into three families: UDP-Glc pyrophosphorylase (UGPase), UDP-sugar pyrophosphorylase (USPase) and UDP-N-acety lglucosamine pyrophosphorylase (UAGPase), which can be discriminated both by differences in accepted substrate range and amino acid sequences. READ MORE

  3. 3. Studies on the Role of UDP-Glucose Dehydrogenase in Polysaccharide Biosynthesis

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Elisabet Roman; Uppsala universitet.; [2004]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; UDP-glucose dehydrogenase; polysaccharide biosynthesis; glycosaminoglycan; A. thaliana; E. coli K5; Biokemi; MEDICINE Chemistry Biochemistry; MEDICIN Kemi Biokemi; Medical and Physiological Chemistry; medicinsk och fysiologisk kemi;

    Abstract : Polysaccharides are found in all forms of life and serve diverse purposes. They are enzymatically synthesised from activated monosaccharide precursors, nucleotide sugars. One such nucleotide sugar is UDP-glucuronic acid, which is formed from UDP-glucose by the UDP-glucose dehydrogenase (UGDH) enzyme. READ MORE

  4. 4. Structure and lipid interactions of membrane-associated glycosyltransferases Cationic patches and anionic lipids regulate biomembrane binding of both GT-A and GT-B enzymes

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Scarlett Szpryngiel; Stockholms universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; glycosyltransferase; monotopic membrane proteins; galactolipids; NMR; chitin synthase; DGD2; LPS; WaaG; MIT domain; Biophysics; biofysik;

    Abstract : This thesis concerns work on structure and membrane interactions of enzymes involved in lipid synthesis, biomembrane and cell wall regulation and cell defense processes. These proteins, known as glycosyltransferases (GTs), are involved in the transfer of sugar moieties from nucleotide sugars to lipids or chitin polymers. READ MORE

  5. 5. Targeting RNA by the Antisense Approach and a Close Look at RNA Cleavage Reaction

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jharna Barman; Uppsala universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; mRNA targeting; antisense oligonucleotides; target affinity; RNase H; Michaelis-Menten kinetics; exo-nuclease stability; NMR; pH titration; alkaline hydrolysis; Organisk kemi;

    Abstract : This thesis summarizes the results of studies on two aspects of nucleic acids. Chemically modified antisense oligonucleotides (AONs) have been evaluated with regards to their suitability for mRNA targeting in an antisense approach (Paper I – III). READ MORE