Sökning: "atpase"

Visar resultat 6 - 10 av 190 avhandlingar innehållade ordet atpase.

  1. 6. Enzymatic metal-chelation by porphyrins

    Författare :Andreas Hansson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tetrapyrrole; Plant biochemistry; Växtbiokemi; MIDAS; metallation; magnesium chelatase; integrin; heme; ferrochelatase; chlorophyll; barley; AAA ; ATPase;

    Sammanfattning : This thesis deals with the structure and function of two different enzymes, ferrochelatase and magnesium chelatase, that catalyse similar reactions. When this work started, a three-dimensional model of ferrochelatase existed. Much was known about the enzyme, but some details remained unclear. LÄS MER

  3. 7. Mechanisms for control of nucleoside triphosphate hydrolysis. Effects of DNA and RNA co-factors

    Författare :Bertil Macao; Göteborgs universitet; []
    Nyckelord :ATPase; GTPase; SRP; Ffh; FtsY; SRP RNA; OBP; UL9; oriS; oriS*; HSV-1; helicase.;

    Sammanfattning : In energetically unfavourable biological processes "protein machines" utilize chemical energy from the hydrolysis of high-energy phosphate bonds. Thus, the hydrolysis of a nucleoside triphosphate (NTP) to nucleoside diphosphate (NDP) with the release of free orthophosphate results in a liberation of energy. LÄS MER

  4. 8. The Biophysics of Na+,K+-ATPase in neuronal health and disease

    Författare :Evgeny E. Akkuratov; Hjalmar Brismar; Anita Aperia; Stefan Wennmalm; Poul Nissen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Na ; K -ATPase; NMDA receptor; ouabain; phosphoproteome; oligomerization; rapid-onset dystonia-parkinsonism; Biologisk fysik; Biological Physics;

    Sammanfattning : Na+,K+-ATPase is one of the most important proteins in the mammalian cell. It creates sodium and potassium gradients which are fundamental for the membrane potential and sodium-dependent secondary active transport. LÄS MER

  5. 9. The Plasma Membrane H+-ATPase - Identification of a 14-3-3 binding motif

    Författare :Fredrik Svennelid; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; regulation; Plant biochemistry; Växtbiokemi; plasma membrane; plant; phosphorylation; isoforms; H -ATPase; fusicoccin; C terminus; binding motif; 14-3-3; autoinhibitory domain;

    Sammanfattning : The P-type plasma membrane H+-ATPases form a group of proteins only found in plants and fungi. The pumping of protons across the plasma membrane, energized by ATP hydrolysis, creates an electrochemical gradient that is essential for solute transport and internal pH regulation. LÄS MER

  7. 10. The Plant Plasma Memrbane H+-ATPase: regulation by phosphorylation and 14-3-3 proteins

    Författare :Anne Olsson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phosphorylation; fusicoccin; 14-3-3; C-terminus; autoinhibitory domain; plasma membrane; plant; H -ATPase; Plant biochemistry; Växtbiokemi;

    Sammanfattning : The plant plasma membrane H+-ATPase is a predominant membrane enzyme that provides the energy for secondary active transport across the plasma membrane. Consequently, the H+-ATPase is thought to play a major role in many cell processes, and it is implicated to be regulated by a number of factors, including hormones, blue light, and fungal toxins The plant plasma membrane H+-ATPase is regulated via an autoinhibitory domain located within the C-terminal region of the enzyme. LÄS MER