cytochrome oxidase

(redirected from Cytochrome c oxidase)
Also found in: Medical, Acronyms, Encyclopedia, Wikipedia.

cytochrome oxidase

n.
An oxidizing enzyme that contains iron and a porphyrin and is found in the mitochondrial membrane, where it catalyzes the transfer of electrons to oxygen as part of the electron transport chain, ultimately leading to the formation of ATP.
References in periodicals archive ?
Quantization of enzymes activity: For determination of cytochrome c oxidase and succinate dehydrogenase activity, stained MII oocytes were transferred in the center of glass slide.
4 H2S inhibits mitochondrial cytochrome c oxidase that paralyzes the electron transport system, prevents oxygen cellular utilization and interferes with oxygen transport system by binding with haemoglobin.
Concurrently T3 (ccoN: cbb3-type cytochrome c oxidase subunit I) involved in two-components system is also a human nonhomologous protein that plays vital roles in electron transport and respiration system.
Cytochrome C oxidase activity was measured spectrophotometrically at 550 nm at 25[degrees] C in whole cell extracts using a cytochrome C oxidase assay kit (Sigma-Aldrich, St.
When the amount of copper supplied increased, the cells exhibit higher cytochrome c oxidase activities and produce more phenolic compounds, in spite of decreasing amount of total mitochondrial proteins and a lesser number of visible bands visualized from SDS-PAGE analysis.
In addition to general updating, highlights of the sixth edition include: a new section on metal complexes of chlorine, chlorophylls, phthalocyanines, and bacteriochloryphylls; vibrational spectra of novel coordination compounds prepared in inert gas matrices; and vibrational spectra of cytochrome c oxidase and blue copper proteins.
The capacity of classic markers for mitochondrial density, ie, the capacity of citrate synthase (CS) and succinate dehydrogenase (SDH), as well the capacity of cytochrome c oxidase (COX) and beta-hydroxyacyl-CoA dehydrogenase (HAD), was determined in homogenized muscle biopsy samples obtained from the vastus lateralis muscle of nonexercising healthy young (age 20 [+ or -] 2 yr) subjects (31 women, 7 men).
The barcodes will be based upon the 650-letter cytochrome C oxidase 1, or Cox1 gene, which resides in the mitochondrial DNA in the cells of almost all living creatures.
After years of trial and error, Hebert's team settled on a mitochondrial gene known as cytochrome c oxidase subunit I, or COI.
Gene regions from cytochrome c oxidase I (coxI), cytochrome b, 12S rRNA and 16S rRNA were amplified and sequenced using universal primer pairs.