Euglena mitochondrial respiratory chain electron transport system. Comparative biochemistry of cytochrome bc1 complex.
نویسندگان
چکیده
منابع مشابه
Crystallization of cytochrome bc1 complex.
Complex III (cytochrome bc1 particle; ubiquinol:ferricytochrome c oxidoreductase, EC 1.10.2.2) was purified from beef heart mitochondria by a combination of hydrophobic interaction and affinity chromatography. By washing the complex with detergent on the hydrophobic interaction column, phospholipids were effectively depleted; 7 mol of cardiolipin per mol of cytochrome c1 was retained in the fin...
متن کاملComparative Biochemistry of Cytochrome C.
To elucidate the origin of life on the earth and its evolution, one of the best methods is to classify organisms on the basis of their biochemical properties, and for this comparative biochemical studies are necessary. Such studies have been made in a variety of studies by various workers. For example, hemoglobins were studied by Pauling and Zuckerkandl (1) a.nd Haurowitz and Hardin (2)) the vi...
متن کاملThree molecules of ubiquinone bind specifically to mitochondrial cytochrome bc1 complex.
Bifurcated electron flow to high potential "Rieske" iron-sulfur cluster and low potential heme b(L) is crucial for respiratory energy conservation by the cytochrome bc(1) complex. The chemistry of ubiquinol oxidation has to ensure the thermodynamically unfavorable electron transfer to heme b(L). To resolve a central controversy about the number of ubiquinol molecules involved in this reaction, ...
متن کاملThe mechanism of mitochondrial superoxide production by the cytochrome bc1 complex.
Production of reactive oxygen species (ROS) by the mitochondrial respiratory chain is considered to be one of the major causes of degenerative processes associated with oxidative stress. Mitochondrial ROS has also been shown to be involved in cellular signaling. It is generally assumed that ubisemiquinone formed at the ubiquinol oxidation center of the cytochrome bc(1) complex is one of two sou...
متن کاملBiogenesis of mitochondrial ubiquinol:cytochrome c reductase (cytochrome bc1 complex). Precursor proteins and their transfer into mitochondria.
The precursor proteins to the subunits of ubiquinol:cytochrome c reductase (cytochrome bc1 complex) of Neurospora crassa were synthesized in a reticulocyte lysate. These precursors were immunoprecipitated with antibodies prepared against the individual subunits and compared to the mature subunits immunoprecipitated or isolated from mitochondria. Most subunits were synthesized as precursors with...
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ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1989
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.63.1509