- Flavin mononucleotide
ImageFile = Flavin mononucleotide.png
OtherNames = FMN
Section1 = Chembox Identifiers
CASNo = 146-17-8
PubChem = 710
SMILES = O=C(N3)C2=NC1=CC(C)=C(C)C=C1N(C [C@H] (O) [C@H] (O) [C@@H] (COP(O)(O)=O)O)C2=NC3=O
MeSHName = Flavin+mononucleotide
Section2 = Chembox Properties
Formula = C17H21N4O9P
MolarMass = 456.344 g/mol
Section3 = Chembox Hazards
Flavin mononucleotide (FMN), or riboflavin-5′-phosphate, is produced from
riboflavin(vitamin B2) by the enzyme riboflavin kinaseand functions as prosthetic groupof various oxidoreductases including NADH dehydrogenase. During catalytic cycle, the reversible interconversion of oxidized (FMN), semiquinone (FMNH•) and reduced (FMNH2) forms occurs. FMN is a stronger oxidizing agent than NADand is particularly useful because it can take part in both one and two electron transfers.
It is the principal form in which riboflavin is found in cells and tissues. Energetically, it is more expensive to produce, but is more
E numberE101a, it is used as a food dyeand is likely derived from genetically modified organisms.
E106, a very closely related food dye, is riboflavin-5′-phosphate sodium salt, which consists mainly of the
monosodium saltof the 5′-monophosphate esterof riboflavin. It is rapidly turned to free riboflavin after ingestion. It is found in many foods for babies and young children as well as jams, milkproducts and sweets and sugarproducts.
* [http://www.ebi.ac.uk/msd-srv/chempdb/cgi-bin/cgi.pl?FUNCTION=getByCode&CODE=FMN FMN] in the [http://www.ebi.ac.uk/msd/ EBI Macromolecular Structure Database]
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