Record Information
Version1.0
Creation Date2016-10-03 18:39:01 UTC
Update Date2020-05-21 16:28:50 UTC
BMDB IDBMDB0012819
Secondary Accession Numbers
  • BMDB12819
Metabolite Identification
Common Name5-Hydroxykynurenine
Description5-Hydroxykynurenine belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. 5-Hydroxykynurenine is possibly soluble (in water) and a very strong basic compound (based on its pKa). 5-Hydroxykynurenine participates in a number of enzymatic reactions, within cattle. In particular, 5-Hydroxykynurenine and formic acid can be biosynthesized from 5-hydroxy-N-formylkynurenine; which is mediated by the enzyme kynurenine formamidase. In addition, 5-Hydroxykynurenine can be converted into 5-hydroxykynurenamine; which is catalyzed by the enzyme aromatic-L-amino-acid decarboxylase. In cattle, 5-hydroxykynurenine is involved in the metabolic pathway called the tryptophan metabolism pathway.
Structure
Thumb
Synonyms
ValueSource
2-Amino-4-(2-amino-5-hydroxyphenyl)-4-oxobutanoic acidChEBI
2-Amino-4-(2-amino-5-hydroxyphenyl)-4-oxobutanoateGenerator
5-Hydroxy-L-kynurenineHMDB
5-Hydroxykynurenine, (L)-isomerHMDB
Chemical FormulaC10H12N2O4
Average Molecular Weight224.2133
Monoisotopic Molecular Weight224.079706882
IUPAC Name2-amino-4-(2-amino-5-hydroxyphenyl)-4-oxobutanoic acid
Traditional Name5-hydroxykynurenine
CAS Registry Number720-00-3
SMILES
NC(CC(=O)C1=C(N)C=CC(O)=C1)C(O)=O
InChI Identifier
InChI=1S/C10H12N2O4/c11-7-2-1-5(13)3-6(7)9(14)4-8(12)10(15)16/h1-3,8,13H,4,11-12H2,(H,15,16)
InChI KeyOTDQYOVYQQZAJL-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentAlkyl-phenylketones
Alternative Parents
Substituents
  • Alkyl-phenylketone
  • Butyrophenone
  • Alpha-amino acid
  • Alpha-amino acid or derivatives
  • P-aminophenol
  • Aminophenol
  • Benzoyl
  • Gamma-keto acid
  • Aryl alkyl ketone
  • Aniline or substituted anilines
  • Phenol
  • 1-hydroxy-2-unsubstituted benzenoid
  • Benzenoid
  • Monocyclic benzene moiety
  • Beta-aminoketone
  • Keto acid
  • Vinylogous amide
  • Amino acid
  • Amino acid or derivatives
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Carboxylic acid
  • Organic oxide
  • Amine
  • Organonitrogen compound
  • Primary amine
  • Hydrocarbon derivative
  • Primary aliphatic amine
  • Organopnictogen compound
  • Organic nitrogen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-2.2ALOGPS
logP-2.2ChemAxon
logS-1.9ALOGPS
pKa (Strongest Acidic)0.98ChemAxon
pKa (Strongest Basic)8.91ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area126.64 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity57.03 m³·mol⁻¹ChemAxon
Polarizability21.53 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
HMDB IDHMDB0012819
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB029180
KNApSAcK IDNot Available
Chemspider ID389616
KEGG Compound IDC05651
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia Link3-Hydroxykynurenine
METLIN IDNot Available
PubChem Compound440745
PDB IDNot Available
ChEBI ID2076
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Amino acid transport and metabolism
Specific function:
Catalyzes the decarboxylation of L-3,4-dihydroxyphenylalanine (DOPA) to dopamine, L-5-hydroxytryptophan to serotonin and L-tryptophan to tryptamine.
Gene Name:
DDC
Uniprot ID:
P27718
Molecular weight:
54294.0
Reactions
5-Hydroxykynurenine → 5-Hydroxykynurenamine + Carbon dioxidedetails
General function:
Not Available
Specific function:
Catalyzes the hydrolysis of N-formyl-L-kynurenine to L-kynurenine, the second step in the kynurenine pathway of tryptophan degradation. Kynurenine may be further oxidized to nicotinic acid, NAD(H) and NADP(H). Required for elimination of toxic metabolites.
Gene Name:
AFMID
Uniprot ID:
E1BLL5
Molecular weight:
35460.0
Reactions
5-Hydroxy-N-formylkynurenine + Water → 5-Hydroxykynurenine + Formic aciddetails