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cytochrome oxidase
(redirected from Cytochrome c oxidase)

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
cytochrome oxidase
n.
An oxidizing enzyme containing iron and a porphyrin, found in mitochondria and important in cell respiration as an agent of electron transfer from certain cytochrome molecules to oxygen molecules.

cytochrome
any of a class of hemoproteins, widely distributed in animal and plant tissue, whose main function is electron transport; distinguished according to their prosthetic group as a, b, c and d.

cytochrome b5 reductase
a flavoprotein involved in the desaturation of fatty acids in the liver.
cytochrome oxidase
an a type cytochrome which contains copper and receives electrons from another cytochrome, of the c type, and transfers them to oxygen atoms allowing the oxygen to combine with hydrogen atoms to form water. A nutritional deficiency of copper leads to a general reduction in metabolic rate because of the absence of cytochrome oxidase a.
cytochrome system
the sum of cytochromes which play a part in the body's metabolic processes. Includes the cytochrome oxidases and cytochrome reductases.


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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 ceruloplasmin is responsible for most of the transport of bivalent copper around the body, in the tissues of which it helps to form the bivalent copper enzymes previously mentioned, such as Cytochrome C oxidase and Lysyl oxidase.
 
 
 
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