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see coenzymecoenzyme
, 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 intimately in
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any one of a group of natural organic compounds present in all living cells; a derivative of the heterocyclic compounds of isoalloxazine (C10H6O2N4). Many flavins are important biologically active substances, for example, the vitamin riboflavin. Riboflavin’s derivatives flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) are widely distributed coenzymes, which take part in the oxidation-reduction processes of organisms.


Any of several water-soluble yellow pigments occurring as coenzymes of flavoproteins.
References in periodicals archive ?
The above-reviewed studies of possible mechanism of the influence of flavines on biological activity of aromatic drugs enable to conclude that for the "Aromatic drug-vitamin" system the most probable mechanisms of the observed synergetic biological effect are the direct interaction between the vitamin and the drug and their competition for the biological receptor DNA or protein.
Maxillon flavine 10GFF 2 g Methanol 1000 mL Combine the ingredients and place on a stirring device to dissolve the maxillon flavine 10GFF.
The relative positions of the transmembrane domain, heme peroxidase-like domain, calcium-binding (EF-hand), flavine adenine dinucleotide(FAD-) binding, and reduced nicotinamide adenine dinucleotide phosphate- (NADPH-) binding motifs are indicated [46].