Sökning: "reductase"

Visar resultat 1 - 5 av 336 avhandlingar innehållade ordet reductase.

  1. 1. Herpes simplex ribonucleotide reductase

    Författare :Rolf Ingemarson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ribonucleotide reductase; herpes simplex virus;

    Sammanfattning : In all bacterial, plant and animal cells, as well as in many viruses, genetic information resides in DNA (deoxyribonucleic acid). Replication of DNA is essential for proliferation, and DNA-containing viruses (such as herpesviruses) must carry out this process within the mammalian cells they infect. LÄS MER

  3. 2. Ribonucleotide reductase and DNA damage

    Författare :Pelle Håkansson; Lars Thelander; Claes Gustafsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ribonucleotide reductase; DNA damage; dNTP pools; Medical cell biology; Medicinsk cellbiologi;

    Sammanfattning : A prerequisite for a multicellular organism to survive is the ability to correctly replicate and repair DNA while minimizing the number of heritable mutations. To achieve this, cells need a balanced supply of deoxyribonucleoside triphosphates (dNTPs), the precursors for DNA synthesis. LÄS MER

  4. 3. High (valent) on O2 : Ribonucleotide Reductase and Methane Monooxygenase

    Författare :Juliane John; Martin Högbom; Pål Stenmark; Peter Moody; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ribonucleotide Reductase; Methane Monooxygenase; biokemi; Biochemistry;

    Sammanfattning : Macromolecular X-ray crystallography (MX) is a powerful method to investigate protein structures. However, proteins with redox-active centres and radicals are very susceptible to photoreduction. LÄS MER

  5. 4. Glutathione reductase from erythrocytes : purification, characterization and identification of functional histidine and arginine residues of the enzyme

    Författare :Vijayakumar Boggaram; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This investigation aims at the development of a rapid, simple purification procedure for glutathione reductase and at an exploration of the chemical groups of the enzyme essential for activity.Glutathione reductase from porcine erythrocytes was purified to homogeneity by the use of affinity chromatography on 2’,5’ ADP-Sepharose 4B. LÄS MER

  7. 5. Nitric Oxide Reductase from Paracoccus denitrificans : A Proton Transfer Pathway from the “Wrong” Side

    Författare :Ulrika Flock; Pia Ädelroth; Simon de Vries; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; denitrification; nitric oxide reductase; heme copper oxidase superfamily; divergent member; proton transfer; electron transfer; single turnover; spectroscopy; periplasm; glutamate; proton pathway; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Denitrification is an anaerobic process performed by several soil bacteria as an alternative to aerobic respiration. A key-step in denitrification (the N-N-bond is made) is catalyzed by nitric oxide reductase (NOR); 2NO + 2e- + 2H+ → N2O + H2O. LÄS MER