coenzyme

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co·en·zyme

 (kō-ĕn′zīm′)
n.
An organic substance that reversibly combines with a specific protein, the apoenzyme, and with a substrate to form an active enzyme system.

co′en·zy·mat′ic (-zə-măt′ĭk) adj.
co·en′zy·mat′i·cal·ly adv.
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.

coenzyme

(kəʊˈɛnzaɪm)
n
(Biochemistry) biochem a nonprotein organic molecule that forms a complex with certain enzymes and is essential for their activity. See also apoenzyme
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

co•en•zyme

(koʊˈɛn zaɪm)

n.
a molecule that provides the transfer site for biochemical reactions catalyzed by an enzyme.
[1905–10; < German Ko-enzym; see co-, enzyme]
co•en`zy•mat′ic (-zaɪˈmæt ɪk, -zɪ-) adj.
co•en`zy•mat′i•cal•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

coenzyme

A nonprotein compound that activates an enzyme to speed up a biochemical reaction.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.coenzyme - a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes
molecule - (physics and chemistry) the simplest structural unit of an element or compound
cocarboxylase, thiamine pyrophosphate - a coenzyme important in respiration in the Krebs cycle
coenzyme A - a coenzyme present in all living cells; essential to metabolism of carbohydrates and fats and some amino acids
NAD, nicotinamide adenine dinucleotide - a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes
NADP, nicotinamide adenine dinucleotide phosphate - a coenzyme similar to NAD and present in most living cells but serves as a reductant in different metabolic processes
triphosphopyridine nucleotide - a coenzyme of several enzymes
coenzyme Q, ubiquinone - any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
coenzyme

co·en·zyme

n. coenzima, sustancia que activa la acción de una enzima.
English-Spanish Medical Dictionary © Farlex 2012

coenzyme

n coenzima m&f; — Q coenzima Q; [Note: the RAE lists coenzima as feminine, but as with enzima, masculine usage is common, particularly in Spain.]
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Folic acid is converted (in the presence of ascorbic acid) in the liver and plasma to its metabolically active form (tetrahydrofolic acid) by dihydrofolatereductase [34].
In order for dietary folic acid to exert its biological actions, it must be reduced metabolically to tetrahydrofolic acid (THF).
Normally, the in vivo form of vitamin B12 is involved in the process of transition from methyltetrahydrofolate to tetrahydrofolic acid and is an important cofactor for the conversion of homocysteine to methionine.[5] These two processes are closely related to the formation of DNA, and to the repair and formation of myelin sheath in vivo.
PABA is involved in the biosynthesis of tetrahydrofolic acid, which is important for the bacteria's metabolism.