Hatefi 1962 J Biol Chem-XLI
|Hatefi Y, Haavik AG, Griffiths DE (1962) Studies on the electron transfer system. XLI. Reduced coenzyme Q (QH2)-cytochrome c reductase. J Biol Chem 237:1681-5.|
Abstract: The preparation from beef heart mitochondria and the properties, of a highly active and stable enzyme system, capable of catalyzing the reduction of cytochrome c by reduced coenzyme Q2 are described. The enzyme complex contains cytochrome b and cytochrome c1 in high concentration, and is free of cytochrome c oxidase, cytochrome c, flavoproteins, and the citric acid cycle dehydrogenases. The activity of the enzyme corresponds to a QO2, of about 320,000 at 38°. This activity is strongly inhibited by antimycin A, 2-nonyl-4-hydroxy-quinoline-N-oxide, and 2-alkyl-3-hydroxynaphthoquinone. Amytal, thenoyltrifluoroacetone, and a number of specific metal-chelating compounds are ineffective as inhibitors.
- Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. Bioenerg Commun 2020.2:112 pp. doi:10.26124/bec:2020-0002
Organism: Bovines Tissue;cell: Heart Preparation: Isolated mitochondria Enzyme: Complex IV;cytochrome c oxidase Regulation: Substrate Coupling state: ET
Made history, BEC 2020.2