Record Information
Version1.0
StatusDetected and Quantified
Creation Date2022-04-29 22:46:00 UTC
Update Date2025-01-15 18:35:50 UTC
Metabolite IDMMDBc0049909
Metabolite Identification
Common NameReduced FMN
DescriptionFMNH2 is the reduced form of flavin mononucleotide. It is a substrate of the enzyme FMN reductase (EC 1.5.1.29), an enzyme that catalyzes the chemical reaction FMNH2 + NAD(P)+ <=> FMN + NAD(P)H + H+. Flavin mononucleotide (FMN), or riboflavin-5′-phosphate, is a biomolecule produced from riboflavin (vitamin B2) by the enzyme riboflavin kinase and functions as prosthetic group of various oxidoreductases including NADH dehydrogenase. During a catalytic cycle, the reversible interconversion of oxidized (FMN), semiquinone (FMNH•) and reduced (FMNH2) forms occurs in the various oxidoreductases. FMN is a stronger oxidizing agent than NAD and is particularly useful because it can take part in both one- and two-electron transfers.
Structure
Synonyms
ValueSource
1,5-Dihydroriboflavin 5'-(dihydrogen phosphate)ChEBI
Flavin mononucleotide (reduced)ChEBI
FMNHChEBI
Reduced FMNChEBI
1,5-Dihydroriboflavin 5'-(dihydrogen phosphoric acid)Generator
Reduced flavin mononucleotideHMDB
Flavin mononucleotide hydroquinoneMeSH, HMDB
Molecular FormulaC17H23N4O9P
Average Mass458.3597
Monoisotopic Mass458.120264866
IUPAC Name{[(2R,3S,4S)-5-{7,8-dimethyl-2,4-dioxo-1H,2H,3H,4H,5H,10H-benzo[g]pteridin-10-yl}-2,3,4-trihydroxypentyl]oxy}phosphonic acid
Traditional Namefmnh(.)
CAS Registry NumberNot Available
SMILES
CC1=CC2=C(C=C1C)N(C[C@H](O)[C@H](O)[C@H](O)COP(O)(O)=O)C1=C(N2)C(=O)NC(=O)N1
InChI Identifier
InChI=1S/C17H23N4O9P/c1-7-3-9-10(4-8(7)2)21(15-13(18-9)16(25)20-17(26)19-15)5-11(22)14(24)12(23)6-30-31(27,28)29/h3-4,11-12,14,18,22-24H,5-6H2,1-2H3,(H2,27,28,29)(H2,19,20,25,26)/t11-,12+,14-/m0/s1
InChI KeyYTNIXZGTHTVJBW-SCRDCRAPSA-N