cytochrome c oxidase


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cy·to·chrome c ox·i·dase

(sī'tō-krōm oks'i-dās),
A cupriferous cytochrome of the a type that catalyzes the oxidation of four molecules of ferrocytochrome c by molecular oxygen to produce four molecules of ferricytochrome c and 2H2O. A part of Complex IV of the respiratory chain. A deficiency of one or more of the polypeptides of this complex results in neuronal loss in the brain leading to psychomotor retardation and neurodegenerative disease.
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References in periodicals archive ?
This result may be due to encoding of some cytochrome C oxidase subunits by mitochondrial genome whereas total subunits of succinate dehydrogenase are encoded by nuclear genome.
Barrientos, "Redox and reactive oxygen species regulation of mitochondrial cytochrome C oxidase biogenesis," Antioxidants & Redox Signaling, vol.
The 3D structure of best active site of T2 (ccoN:cbb3-type cytochrome c oxidase subunit I) by CASTp and (B) Active site information of T2that is most highly positioned in area 2397.1 and volume 3270.3, where green color shows the active site position from 32 to 520
Our results revealed that the activity of cytochrome c oxidase has been increased with increasing amount of copper, in spite of the reduction of total mitochondrial protein contents.
Yamashita et al., "The whole structure of the 13 subunit oxidized cytochrome c oxidase at 2.8 angstrom," Science, vol.
Cytochrome c oxidase, the terminal oxidase in the respiratory chain, reduces oxygen to water through electron and proton transfer.
cDNA expression profiles revealed that OP and UV-B affected the levels of several candidate transcripts in tadpole (i.e., Nck, Ash, and phospholipase C [gamma]-binding protein 4 and brain angiogenesis inhibitor-3) and metamorph (i.e., GAD67, cytochrome C oxidase, and brain angiogenesis inhibitor-2 and -3) brains.
The activities of NADH dehydrogenase (complex I) (18), succinate dehydrogenase (complex II) (19), NADH cytochrome C reductase (complex I and III) (18), succinate cytochrome C reductase (complex II and III) (18), cytochrome C oxidase (complex IV) (20), and citrate synthase (CS) (21) were measured spectrophotometrically using a Beckman DU-650 Spectrophotometer by monitoring the reduction of ferricyanide (complex I), 2,6-dichlorophenolindophenol (complex II), cytochrome C (complex I+III and II+III), the oxidation of cytochrome C (complex W), and the appearance of free coenzyme A (CS) in spermatozoa homogenates as previously described.
Cotton mealybug, Hyperparasitism, Cytochrome c oxidase I, Internal transcribed spacer 1, Biological control.
Species specific primers were designed to hybridize with cytochrome c oxidase gene of P.