Search for dissertations about: "nitric oxide proton pump"

Showing result 1 - 5 of 6 swedish dissertations containing the words nitric oxide proton pump.

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

    Author : Ulrika Flock; Pia Ädelroth; Simon de Vries; Stockholms universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 2. Experimental studies of proton translocation reactions in biological systems : Electrogenic events in heme-copper oxidases

    Author : Håkan Lepp; Peter Brzezinski; Thomas Nilsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; heme-copper oxidase; cytochrome c oxidase; nitric oxide reductase; cbb3-type oxidase; proton pumping; uncoupling; charge-transfer; electrogenic event; flow-flash; Biophysics; Biofysik; Biophysics; biofysik;

    Abstract : Terminal heme-copper oxidases (HCuOs) are transmembrane proteins that catalyze the final step in the respiratory chain - the reduction of O2 to H2O, coupled to energy conservation by generation of an electrochemical proton gradient. The most extensively investigated of the HCuOs are the aa3-type oxidases, to which cytochrome c oxidase (CytcO) belongs, which uses energy released in the O2-reduction for proton pumping. READ MORE

  5. 3. Kinetics of proton and electron transfer in heme-copper oxidases

    Author : Peter Lachmann; Pia Ädelroth; Örjan Hansson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Heme-copper oxidase; electron transfer; proton transfer; nitric oxide reductase; ba3 oxidase; flow-flash; laser-flash photolysis; Biochemistry; biokemi;

    Abstract : Heme-copper oxidases are transmembrane proteins that are found in aerobic and anaerobic respiratory chains. During aerobic respiration, these enzymes reduce dioxygen to water. The energy released in the reaction is used to transport protons across a biological membrane. READ MORE

  6. 4. Airborne nitric oxide : inflammatory marker and aerocrine messenger in man

    Author : Jon Lundberg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ARDS; asthma; cystic fibrosis; cystitis; exhaled air; inflammatory bowel disease; inhaled nitric oxide; Kartagener s syndrome; nitric oxide synthase; sinusitis; ;

    Abstract : We have used a chemiluminescence technique to measure gaseous nitric oxide (NO) directly in hollow organs of humans. NO production was studied in the airways of healthy controls and patients with chronic inflammatory airway disease, in the stomach of healthy subjects, in the colon of patients with inflammatory bowel disease, and in the urinary bladder of patients with cystitis. READ MORE

  7. 5. The role of dietary nitrate in regulation of blood pressure and metabolism

    Author : Michaela Sundqvist; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : A diet rich in vegetables is recommended for health in general and is also associated with lower blood pressure. Research suggests that inorganic nitrate present in leafy green vegetables could be a contributing factor for the favourable effect. READ MORE