Search for dissertations about: "Respiratory chain"

Showing result 6 - 10 of 157 swedish dissertations containing the words Respiratory chain.

  2. 6. NADH:quinone oxidoreductase: the black box of the respiratory chain

    Author : Robert Roth; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NADH:quinone oxidoreductase; Complex I; electron transport; membrane protein; ubiquinone; respiratory chain; respiration; metabolism; Metabolism; Biokemi; Biochemistry;

    Abstract : Complex I or NADH:quinone oxidoreductase the largest, most complex and least understood of the five membrane-bound enzyme complexes constituting the mitochondrial respiratory chain. The enzyme is present in all types of organisms, from bacteria to mammals. READ MORE

  4. 7. The plant respiratory chain: Redox responses and catalytic definition of alternative pathways

    Author : Daniela Geisler; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; enzymology; Proteins; Kärlväxters fysiologi; Physiology of vascular plants; Växtekologi; Plant ecology; Växtbiokemi; Plant biochemistry; respiratory chain; plant mitochondria; nitrogen; NADPH dehydrogenase; NADH dehydrogenase; alternative oxidase; calcium; Proteiner; enzymologi; Bioenergetics; Bioenergetik; Lipids; steroids; membranes; Lipider; steroider; mebran;

    Abstract : The respiratory chain of plants contains both proton-pumping enzymes that conserve energy and non-proton-pumping alternative enzymes that bypass the sites of energy conservation. In addition to the proton-pumping complex I, plant mitochondria contain alternative type II NAD(P)H dehydrogenases, which allow oxidation of NADH and NADPH from the matrix and the cytosol. READ MORE

  5. 8. Role of respiratory supercomplexes : Electronic connection between complexes III and IV

    Author : Agnes Moe; Peter Brzezinski; James A. Letts; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electron transfer; cytochrome c oxidase; cytochrome bc1; respiratory supercomplex; bioenergetics; membrane protein; biokemi; Biochemistry;

    Abstract : In the final step of cellular respiration, electrons are transferred through the respiratory chain to reduce molecular oxygen to water. The energy released in this chain is used to maintain a proton electrochemical gradient across the cell membrane, which is used, for example, by the ATP synthase to produce ATP. READ MORE

  6. 9. Cellular responses to respiratory chain dysfunction

    Author : Anna Hansson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Mitochondria; TFAM; cardiomyopathy; aging; reactive oxygen species ROS ;

    Abstract : Mitochondria are network-like organelles present in most mammalian cells. They contain the respiratory chain (RC) that produces the majority of the energy needed in the cell, in the form of ATP. RC deficiency can arise due to mutations in the mitochondrial DNA (mtDNA) or in nuclear genes encoding mitochondrial proteins. READ MORE

  7. 10. The pathophysiology of respiratory chain dysfunction

    Author : José Pablo Silva; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Mitochondrial disease; mitochondrial DNA mtDNA ; mitochondrial transcription factor A Tfam ; Cre-loxP; conditional knockout; reactive oxygen species ROS ; superoxide; uncoupling protein UCP ; mitochondrial bioenergeties; energy expenditure;

    Abstract : Mutations of mitochondrial DNA cause a variety of clinical syndromes. It is unclear whether impaired oxidative phosphorylation on its own is the main cause of pathology or whether other factors such as secondary metabolic alterations, enhanced formation of reactive oxygen species (ROS) and induction of apoptosis also may contribute to the clinical phenotype. READ MORE