Coenzyme

A small organic molecule that facilitates an enzyme's catalytic action by providing a chemical property not achievable by amino acid residues. Precursors are needed in diet as vitamins. E.g. NAD, FAD

Coenzyme

A low-molecular-weight chemical activating or accelerating enzyme action.

Coenzyme

A coenzyme is a dissociable, low-molecular weight, non-proteinaceous organic compound (often nucleotide) participating in enzymatic reactions as acceptor or donor of chemical groups or electrons.
Found on http://www.chem.qmul.ac.uk/iupac/medchem/ah.html

coenzyme

(from the article `cofactor`) ...is termed a prosthetic group; most such groups contain an atom of metal such as copper or iron. A cofactor that is bound loosely to the apoenzyme ... ...apoenzyme. A cofactor may be a metal—such as iron, copper, or magnesium—a moderately sized organic molecule called a prosthetic group, or a .....
Found on http://www.britannica.com/eb/a-z/c/105

coenzyme

(ko-en´zīm) an organic molecule, usually containing phosphorus and some vitamins, sometimes separable from the enzyme protein; a coenzyme and an apoenzyme must unite in order to function (as a holoenzyme). coenzyme A(CoA) a coenzyme essential for carbohydrate and fa...
Found on http://www.encyclo.co.uk/local/21001

coenzyme

(ko-en;z1m) An organic molecule, usually derived from a water-soluble vitamin, that combines with and activates specific enzyme proteins.
Found on http://www.mhhe.com/biosci/abio/glossary.mhtml

coenzyme

[n] - a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes
Found on http://www.webdictionary.co.uk/definition.php?query=coenzyme

coenzyme

<biochemistry> An organic nonprotein molecule, frequently a phosphorylated derivative of a water soluble vitamin, that binds with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme). ... (18 Nov 1997) ...
Found on http://www.encyclo.co.uk/local/20973

coenzyme

noun a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes
Found on https://www.encyclo.co.uk/local/20974

coenzyme

(Co) Type: Term Pronunciation: kō-en′zīm Definitions: 1. A substance (excluding solo metal ions) that enhances or is necessary for the action of enzymes; coenzymes are of smaller molecular size than the enzymes themselves, are dialyzable and relatively heat-stable, and are usually easily dissociable from the protein portion o...
Found on http://www.medilexicon.com/medicaldictionary.php?t=18747

Coenzyme

A coenzyme is a dissociable, low-molecular weight, non-proteinaceous organic compound (often nucleotide) participating in enzymatic reactions as acceptor or donor of chemical groups or electrons.
Found on http://www.chemistry-dictionary.com/definition/coenzyme.php

Coenzyme

A molecule that works with an enzyme to enable it to fulfil its function in the body.
Found on http://www.superglossary.com/Glossary/Health/Vitamins/

Coenzyme

A substance that works with an enzyme to promote the enzyme's activity.
Found on http://www.superglossary.com/Glossary/Health/Fitness/

Coenzyme

A substance that works with an enzyme to promote the enzyme's activity.
Found on https://www.encyclo.co.uk/local/20470

Coenzyme

A substance that works with an enzyme to promote the enzyme's activity.
Found on https://www.encyclo.co.uk/local/20966

coenzyme

An organic non-protein that plays an essential part in some reactions catalyzed by enzymes. Coenzymes often serve as a temporary carrier of an intermediate product of the reaction. They usually participate in the substrate-enzyme interaction by donating or accepting certain chemical groups. A coenzy...
Found on http://www.daviddarling.info/encyclopedia/C/coenzyme.html

coenzyme

an organic nonprotein molecule, frequently a phosphorylated derivative of a water-soluble vitamin, that binds with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme).
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio18.html

coenzyme

coenzyme (kō-en'zīm) , any one of a group of relatively small organic molecules required for the catalytic function of certain enzymes. A coenzyme may either be attached by covalent bonds to a particular enzyme or exist freely in solution, but in either case it participates intimatel...
Found on http://www.infoplease.com/ce6/sci/A0812781.html

Coenzyme

Coenzyme: A substance that enhances the action of an enzyme. (An enzyme is a protein that functions as a catalyst to mediate and speed a chemical reaction). Coenzymes are small molecules. They cannot by themselves catalyze a reaction but they can help enzymes to do so. In technical terms, coenzymes are organic nonprotein molecules that bind with th...
Found on http://www.medterms.com/script/main/art.asp?articlekey=13153
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