Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-18 00:37:29 UTC
Update Date2022-08-31 17:58:56 UTC
Metabolite IDMMDBc0031153
Metabolite Identification
Common NameFMNH(2)
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'-phosphateChEBI
FMNH2ChEBI
FMNH2 DianionChEBI
Reduced flavin mononucleotide dianionChEBI
Reduced FMN dianionChEBI
Reduced FMN(2-)ChEBI
1,5-Dihydroriboflavin 5'-phosphoric acidGenerator
Flavin mononucleotide hydroquinoneMeSH
Molecular FormulaC17H21N4O9P
Average Mass456.3438
Monoisotopic Mass456.104614802
IUPAC Name7,8-dimethyl-10-[(2S,3S,4R)-2,3,4-trihydroxy-5-(phosphonooxy)pentyl]-5H,10H-benzo[g]pteridine-2,4-bis(olate)
Traditional Name7,8-dimethyl-10-[(2S,3S,4R)-2,3,4-trihydroxy-5-(phosphonooxy)pentyl]-5H-benzo[g]pteridine-2,4-bis(olate)
CAS Registry Number5666-16-0
SMILES
[H][C@@](O)(COP(O)(O)=O)[C@@]([H])(O)[C@@]([H])(O)CN1C2=C(NC3=C1N=C([O-])N=C3[O-])C=C(C)C(C)=C2
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)/p-2/t11-,12+,14-/m0/s1
InChI KeyYTNIXZGTHTVJBW-SCRDCRAPSA-L