cytochrome

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cy·to·chrome

 (sī′tə-krōm′)
n.
Any of a class of usually colored proteins that contain a heme group, are electron carriers, and catalyze oxidation-reduction reactions during cellular respiration.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cytochrome

(ˈsaɪtəʊˌkrəʊm)
n
(Elements & Compounds) any of a group of naturally occurring compounds, consisting of iron, a protein, and a porphyrin, that are important in cell oxidation-reduction reactions
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cy•to•chrome

(ˈsaɪ təˌkroʊm)

n.
any of a series of compound molecules, consisting of a protein and a porphyrin ring, that participate in cell respiration by the stepwise transfer of electrons, each cytochrome alternately accepting and releasing an electron at a lower energy level.
[1925]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

cy·to·chrome

(sī′tə-krōm′)
Any of a class of proteins that are important in cell metabolism and respiration. By comparing different kinds of cytochromes, scientists can trace the evolutionary relationships of the organisms in which they occur.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cytochrome - (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)
biochemistry - the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry
haemoprotein, hemoprotein - a conjugated protein linked to a compound of iron and porphyrin
haem, haemitin, hematin, heme, protoheme - a complex red organic pigment containing iron and other atoms to which oxygen binds
cytochrome c - the most abundant and stable cytochrome; involved in energy transfer
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

cy·to·chrome

n. citocromo, hemocromógeno importante en el proceso de oxidación.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
MetHb is normally formed in small quantities and is rapidly destroyed by the NADH-MetHb reductase (cytochrome b5 reductase) enzyme in the erythrocytes, however, congenital methemoglobinemia patients have a deficiency of this enzyme.
ROS are also produced from mitochondrial enzymatic reactions catalyzed by aconitase, [alpha]-ketoglutarate dehydrogenase, pyruvate dehydrogenase, glycerol-3-phosphate dehydrogenase, dihydroorotate dehydrogenase, monoamine oxidase, and cytochrome b5 reductase [28].
Congenital or inherited causes of methemoglobinemia result due to decreased activity of the enzyme cytochrome b5 reductase resulting in diminished enzymatic reduction of the hemoglobin molecule.