Sökning: "cytochrome bc1"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden cytochrome bc1.

1. 1. Early steps in the biogenesis of the bc1 complex in yeast mitochondria : The role of the Cbp3-Cbp6 complex in cytochrome b synthesis and assembly

   Författare :Steffi Gruschke; Martin Ott; Dennis Winge; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mitochondria; respiratory chain assembly; bc1 complex; mitochondrial gene expression; translational regulation; hemylation; Biochemistry; biokemi;

   Sammanfattning : The inner membrane of mitochondria harbors the complexes of the respiratory chain and the ATP synthase, which perform the key metabolic process oxidative phosphorylation. These complexes are composed of subunits from two different genetic origins: the majority of constituents is synthesized on cytosolic ribosomes and imported into mitochondria, but a handful of proteins, which represent core catalytic subunits, are encoded in the organellar DNA and translated on mitochondrial ribosomes. LÄS MER

3. 2. Role of respiratory supercomplexes : Electronic connection between complexes III and IV

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

   Sammanfattning : 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. LÄS MER

4. 3. Structural studies on cytochrome bc1 complex from bovine heart mitochondria

   Författare :Momi Iwata; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Ubiquinol:cytochrome c oxidoreductase; membrane protein; X-ray crystallography; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

   Sammanfattning : The cytochrome bc1 complex (Ubiquinol:Cytochrome c oxidoreductase or Complex III) is an enzyme of the mitochondrial respiratory chain, crucial for aerobic metabolism. This enzyme catalyses the electron transfer from membrane-bound ubiquinol to soluble cytochrome c. LÄS MER

5. 4. Prokaryotic respiratory supercomplexes : Studies of interactions between complexes III and IV

   Författare :Olga Stah; Pia Ädelroth; Petra Hellwig; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bioenergetics; membrane protein; bacterial respiration; electron transport chain; supercomplex; cytochrome c oxidase; membrane-anchored cytochrome c; cytochrome bc1 complex; electron transfer; proton transfer; time-resolved spectroscopy; apoptosis; biokemi; Biochemistry;

   Sammanfattning : Respiratory processes for cellular energy conversion are carried out by the membrane-associated enzymes of the electron transfer chain (ETC). In recent years there has been emerging data showing that the members of the ETC organize into higher-level assemblies called supercomplexes (SCs) whose functional relevance is not yet fully understood. LÄS MER

7. 5. Biogenesis of the bc1 complex in mitochondria

   Författare :Katharina Stephan; Martin Ott; Daniel Daley; Erika Fernandez-Vizarra; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Respiratory chain; bc1 complex assembly; mitochondrial protein biogenesis; molecular biology; yeast; Biochemistry; biokemi;

   Sammanfattning : Mitochondria perform a variety of tasks, but the function they are most prominent for is the energy conversion to form ATP, the universal energy equivalent of the cell. The majority of this ATP is created by the oxidative phosphorylation system, consisting of the respiratory chain and the ATP synthase. LÄS MER