Flavin Mononucleotide

Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Flavin Mononucleotide: flavin mononucleotide (FMN)

flavin mononucleotide

[′fla·vən ¦mä·nō′nü·klē·ə‚tīd]

Flavin Mononucleotide


(FMN; also riboflavin phosphate), a nonprotein component (coenzyme) of many flavoproteins, which are present in all living cells; a phosphorylated derivative of riboflavin. Molecular weight, 456.35.

FMN is freely soluble in water and insoluble in diethyl ether, chloroform, and methanol. In the organism it is synthesized from riboflavin and adenosine triphosphate (ATP) in the presence of the enzyme riboflavikinnase. As a constituent of flavoproteins, FMN takes part in the oxidation-reduction processes of organisms. It is the biochemical precursor of flavin adenine dinucleotide (FAD).

The acronym FMN is widely used in the biological literature.

References in periodicals archive ?
Riboflavin is the precursor of flavin mononucleotide (FMN) and FAD (11 ), which serve as cofactors for enzymes involved in the metabolism of vitamin B6, folate, and cobalamin (12-16).
Riboflavin is a water-soluble vitamin that serves as a precursor for flavin mononucleotide (FMN) [1] and FAD (1, 2).