Record Information
Version2.0
Creation Date2012-05-31 13:46:17 -0600
Update Date2015-06-03 15:53:47 -0600
Secondary Accession Numbers
  • ECMDB01142
Identification
Name:FMNH
DescriptionFMNH is a member of the chemical class known as Flavins. These are compounds containing a flavin (7,8-dimethyl-benzo[g]pteridine-2,4-dione) moiety, whose structure is characterized by an isoalloaxzine tricyclic ring. During their use in different catalytic cycles, the reversible interconversion of oxidized (FMN), semiquinone (FMNH
Structure
Thumb
Synonyms:
  • FMNH2
  • Reduced flavin mononucleotide
  • Reduced FMN
Chemical Formula:C17H23N4O9P
Weight:Average: 458.3597
Monoisotopic: 458.120264866
InChI Key:YTNIXZGTHTVJBW-UHFFFAOYSA-N
InChI: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)
CAS number:Not Available
IUPAC Name:[(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 IUPAC Name:(5-{7,8-dimethyl-2,4-dioxo-1H,3H,5H-benzo[g]pteridin-10-yl}-2,3,4-trihydroxypentyl)oxyphosphonic acid
SMILES:CC1=CC2=C(C=C1C)N(CC(O)C(O)C(O)COP(O)(O)=O)C1=C(N2)C(=O)NC(=O)N1
Chemical Taxonomy
Description belongs to the class of organic compounds known as flavin nucleotides. These are nucleotides containing a flavin moiety. Flavin is a compound that contains the tricyclic isoalloxazine ring system, which bears 2 oxo groups at the 2- and 4-positions.
KingdomOrganic compounds
Super ClassNucleosides, nucleotides, and analogues
ClassFlavin nucleotides
Sub ClassNot Available
Direct ParentFlavin nucleotides
Alternative Parents
Substituents
  • Flavin nucleotide
  • Flavin
  • Alkyldiarylamine
  • Monosaccharide phosphate
  • Pentose monosaccharide
  • Pteridine
  • Pyrimidone
  • Monoalkyl phosphate
  • Monosaccharide
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Pyrimidine
  • Alkyl phosphate
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous amide
  • Secondary alcohol
  • Lactam
  • Urea
  • Secondary amine
  • Organoheterocyclic compound
  • Polyol
  • Azacycle
  • Organic nitrogen compound
  • Organonitrogen compound
  • Amine
  • Alcohol
  • Organopnictogen compound
  • Organooxygen compound
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Physical Properties
State:Not Available
Charge:-2
Melting point:Not Available
Experimental Properties:
PropertyValueSource
LogP:-0.406PhysProp
Predicted Properties
PropertyValueSource
Water Solubility0.64 g/LALOGPS
logP-0.17ALOGPS
logP-1.1ChemAxon
logS-2.9ALOGPS
pKa (Strongest Acidic)1.5ChemAxon
pKa (Strongest Basic)-0.52ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count10ChemAxon
Hydrogen Donor Count8ChemAxon
Polar Surface Area200.92 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity118.51 m³·mol⁻¹ChemAxon
Polarizability43.23 ųChemAxon
Number of Rings3ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Cytoplasm
Reactions:
Flavin Mononucleotide + Hydrogen ion + NADH > FMNH + NAD
Flavin Mononucleotide + Hydrogen ion + NADPH <> FMNH + NADP
FMNH + Oxygen + Sulfoacetate > Flavin Mononucleotide + Glyoxylic acid + Hydrogen ion + Water + Sulfite
FMNH + Isethionic acid + Oxygen > Flavin Mononucleotide + Glycolaldehyde + Hydrogen ion + Water + Sulfite
FMNH + Methanesulfonate + Oxygen > Formaldehyde + Flavin Mononucleotide + Hydrogen ion + Water + Sulfite
Butanesulfonate + FMNH + Oxygen > Butanal + Flavin Mononucleotide + Hydrogen ion + Water + Sulfite
Ethanesulfonate + FMNH + Oxygen > Acetaldehyde + Flavin Mononucleotide + Hydrogen ion + Water + Sulfite
2 Ferroxamine + FMNH >2 Iron +2 ferroxamine minus Fe(3) + Flavin Mononucleotide +2 Hydrogen ion
FMNH + NAD <> Flavin Mononucleotide + NADH + Hydrogen ion
FMNH + NADP <> Flavin Mononucleotide + NADPH + Hydrogen ion
Uracil + FMNH + Oxygen <> Ureidoacrylate peracid + Flavin Mononucleotide
NAD(P)<sup>+</sup> + FMNH <> NAD(P)H + Flavin Mononucleotide + Hydrogen ion
FMNH + NADP < Flavin Mononucleotide + NADPH + Hydrogen ion
Thymine + Oxygen + FMNH > (<i>Z</i>)-2-methylureidoacrylate peracid + Flavin Mononucleotide + Hydrogen ion
an alkanesulfonate + Oxygen + FMNH > an aldehyde + Sulfite + Water + Flavin Mononucleotide + Hydrogen ion
Uracil + Oxygen + FMNH > Hydrogen ion + Ureidoacrylate peracid + Flavin Mononucleotide
Butanesulfonate + Oxygen + FMNH > Butanal + Sulfite + Water + Flavin Mononucleotide + Hydrogen ion
Alkanesulfonate + FMNH + Oxygen <> Aldehyde + Flavin Mononucleotide + Sulfite + Water
Uracil + FMNH + Oxygen + Thymine <> Ureidoacrylate peracid + Flavin Mononucleotide + (Z)-2-Methyl-ureidoacrylate peracid
Alkanesulfonate + FMNH + Oxygen <> Aldehyde + Flavin Mononucleotide + Sulfite + Water
Flavin Mononucleotide + Hydrogen ion + NADH > FMNH + NAD
Flavin Mononucleotide + Hydrogen ion + NADH > FMNH + NAD
SMPDB Pathways:
Pyrimidine metabolismPW000942 ThumbThumb?image type=greyscaleThumb?image type=simple
Sulfur metabolismPW000922 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG Pathways:
EcoCyc Pathways:
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_6_6) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4l-0134900000-c067efd0cfc36a1e948bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-2391000000-d074adaacd074db90166View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-1290000000-c7e71e5446c90cf0229bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-06fr-9686800000-5cbc632057bde5fb7731View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-002f-9130000000-c711ab545300e0d990b8View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-b1fb1fadd3de6e9ce4bbView in MoNA
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
References
References:
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI IDNot Available
HMDB IDHMDB01142
Pubchem Compound ID711
Kegg IDC01847
ChemSpider ID691
WikipediaFMNH
BioCyc IDFMNH2
EcoCyc IDFMNH2

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Catalyzes the reduction of soluble flavins by reduced pyridine nucleotides. Seems to reduces the complexed Fe(3+) iron of siderophores to Fe(2+), thus releasing it from the chelator
Gene Name:
fre
Uniprot ID:
P0AEN1
Molecular weight:
26242
Reactions
Reduced riboflavin + NAD(P)(+) = riboflavin + NAD(P)H.
2 cob(II)alamin + NAD(+) = 2 aquacob(III)alamin + NADH.
General function:
Involved in sulfite reductase (NADPH) activity
Specific function:
Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L- cysteine from sulfate
Gene Name:
cysI
Uniprot ID:
P17846
Molecular weight:
63998
Reactions
H(2)S + 3 NADP(+) + 3 H(2)O = sulfite + 3 NADPH.
General function:
Involved in sulfite reductase (NADPH) activity
Specific function:
Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L- cysteine from sulfate. The flavoprotein component catalyzes the electron flow from NADPH -> FAD -> FMN to the hemoprotein component
Gene Name:
cysJ
Uniprot ID:
P38038
Molecular weight:
66269
Reactions
H(2)S + 3 NADP(+) + 3 H(2)O = sulfite + 3 NADPH.
General function:
Involved in 2 iron, 2 sulfur cluster binding
Specific function:
Involved in the reduction of ferric iron in cytoplasmic ferrioxamine B
Gene Name:
fhuF
Uniprot ID:
P39405
Molecular weight:
30113
General function:
Involved in FMN reductase activity
Specific function:
Catalyzes an NAD(P)H-dependent reduction of FMN, but is also able to reduce FAD or riboflavin
Gene Name:
ssuE
Uniprot ID:
P80644
Molecular weight:
21253
Reactions
FMNH(2) + NADP(+) = FMN + NADPH.
General function:
Involved in alkanesulfonate monooxygenase activity
Specific function:
Involved in desulfonation of aliphatic sulfonates. Catalyzes the conversion of pentanesulfonic acid to sulfite and pentaldehyde and is able to desulfonate a wide range of sulfonated substrates including C-2 to C-10 unsubstituted linear alkanesulfonates, substituted ethanesulfonic acids and sulfonated buffers
Gene Name:
ssuD
Uniprot ID:
P80645
Molecular weight:
41736
Reactions
An alkanesufonate (R-CH(2)-SO(3)H) + FMNH(2) + O(2) = an aldehyde (R-CHO) + FMN + sulfite + H(2)O.
General function:
Involved in FMN binding
Specific function:
Makes part of the rut operon, which is required for the utilization of pyrimidines as sole nitrogen source
Gene Name:
rutF
Uniprot ID:
P75893
Molecular weight:
17749
Reactions
FMNH(2) + NAD(+) = FMN + NADH.
General function:
Involved in oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
Specific function:
Part of the rut operon, which is required for the utilization of pyrimidines as sole nitrogen source
Gene Name:
rutA
Uniprot ID:
P75898
Molecular weight:
42219
Reactions
Uracil + FMNH(2) + O(2) = (Z)-3-ureidoacrylate peracid + FMN + H(2)O.
Thymine + FMNH(2) + O(2) = (Z)-2-methylureidoacrylate peracid + FMN + H(2)O.