Search for dissertations about: "enzyme-system"

Showing result 1 - 5 of 19 swedish dissertations containing the word enzyme-system.

  2. 1. The fibrinolytic enzyme system : new markers of potential interest in cardiovascular disease

    Author : Arvid Nordenhem; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Fibrinolysis; myocardial infarction; tissue plasminogen activator; PAI-1;

    Abstract : Impaired fibrinolytic function, mainly due to elevated plasma levels of PAI-1, is a common finding in patients with coronary heart disease. Determination or evaluation of the plasma PAI-1 concentrations are complicated, due to a natural variation in blood plasma or due to other reasons, such as a poor stability under physiological conditions. READ MORE

  4. 2. Medium-chain alcohol dehydrogenases : studies of novel class I, II, III and IV forms revealing structural, functional, and evolutionary properties of this enzyme system

    Author : Lars Hjelmqvist; Karolinska Institutet; Karolinska Institutet; []
    Keywords : alcohol dehydrogenase; isozymes; classes; enzymes; amino acid sequence; enzyme functions; protein variability; evolution Lars Hjelmqvist: Medium-chain alcohol dehydrogenases. Studies of novel class I; II; III and IV forms revealing structural; funct;

    Abstract : Novel forms of alcohol dehydrogenases of classes I, II, III, and IV were characterized. Together with other variants, they give useful information on molecular properties and functions of the alcohol dehydrogenase system. They further illustrate general aspects of protein variability, isozyme formation, and evolution of enzyme functions. READ MORE

  5. 3. 4-chlorophenol biodegradation by Arthrobacter chlorophenolicus A6

    Author : Karolina Nordin; Janet Jansson; Lawrence P. Wackett; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi;

    Abstract : A microorganism was isolated which could grow on unusually high concentrations of the toxic pollutant 4-chlorophenol. Taxonomic studies showed that the microorganism constituted a novel species within the genus Arthrobacter and it was named Arthrobacter chlorophenolicus A6. A. READ MORE

  6. 4. Electron transport to nitrogenase in Rhodospirillum rubrum

    Author : Tomas Edgren; Stefan Nordlund; Patrick Hallenbeck; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Rhodospirillum rubrum; nitrogen fixation; electron transport; FixABCX; ferredoxin; Biochemistry; Biokemi;

    Abstract : Biological nitrogen fixation is a key step in the global nitrogen cycle. In this process, dinitrogen in the air is converted to biologically accessible ammonia, which is further assimilated in to the biosphere. READ MORE

  7. 5. Cytochrome P-450 in Drosophila melanogaster : activity, genetic variation and regulation

    Author : Inger Porsch-Hällström; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The cytochrome P-450 enzyme system in the fruit fly, Drosophila melanogaster, was shown to be inducible, to consist of several isozymes and to have the capacity to metabolize a variety of substrates, thus resembling the corresponding mammalian system. These similarities strengthens the value of Drosophila test systems for the detection of indirect carcinogens and mutagens. READ MORE