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 ?
Barcoding animal life: cytochrome c oxidase subunit 1 divergences among closely related species.
Maximum-likelihood phylogenetic trees of cytochrome C oxidase subunit 1 (cox1) gene (656-bp) sequences from African great apes and human Plasmodium spp.
Activity of cytochrome C oxidase in MII oocytes (n=10 in each group) were determined with the method described by Burstone et al (47).
Sanderson, "Phosphorylation of mammalian cytochrome c and cytochrome c oxidase in the regulation of cell destiny: respiration, apoptosis, and human disease," Advances in Experimental Medicine and Biology, vol.
In this study, 34 pockets were determined for T1 (preprotein translocase subunit SecD) while T2 (ccoN:cbb3-type cytochrome c oxidase subunit I) had only seven pockets.
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.
Here, we demonstrate that the protective effect of 670 nm LED on RF/6A cells results from the stimulation of cellular events associated with the enhancement of cytochrome C oxidase activity, further improves oxidative metabolism of mitochondria, and provides protection against hypoxic damage.
Diminished cytochrome c oxidase activity has been described in AD postmortem cerebral cortex [8-11] and platelets [12].
Mitochondrial (mt) DNA content, citrate synthase activity, transcript levels of some nuclear- and mitochondrial-coded genes (cytochrome c oxidase subunit IV [COX-IV], 16S rRNA, COX-I) and of some factors involved in the mitochondrial biogenesis signaling pathway (peroxisome proliferator-activated receptor gamma [PPARgamma] coactivator-1alpha [PGC-1alpha], mitochondrial transcription factor A mitochondrial [TFAM], mitochondrial transcription factor 2B [TFB2]), as well as the protein content of PGC-1alpha were determined.
Methods: Phylogenetic inference calculations were based on partial mitochondrial cytochrome c oxidase subunit I (COX 1), 16S ribosomal RNA and nuclear histone subunit 3 (H3) genes using maximum likelihood, maximum parsimony and Bayesian approaches.
Cyanide ion released by urease action can produce cytochrome C oxidase inhibition and mitochondrial dysfunction.
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.