3-Hydroxykynurenine

3-Hydroxykynurenine
Names


IUPAC name 2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid
Identifiers
CAS Number	484-78-6^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:1547^Y
ChEMBL	ChEMBL442576^Y
ChemSpider	87^Y
KEGG	C02794^Y
MeSH	3-hydroxykynurenine
PubChem CID	89
UNII	27723548JL^Y
CompTox Dashboard (EPA)	DTXSID00862009
InChI InChI=1S/C10H12N2O4/c11-6(10(15)16)4-8(14)5-2-1-3-7(13)9(5)12/h1-3,6,13H,4,11-12H2,(H,15,16)^Y Key: VCKPUUFAIGNJHC-UHFFFAOYSA-N^Y InChI=1/C10H12N2O4/c11-6(10(15)16)4-8(14)5-2-1-3-7(13)9(5)12/h1-3,6,13H,4,11-12H2,(H,15,16) Key: VCKPUUFAIGNJHC-UHFFFAOYAF
SMILES O=C(O)C(N)CC(=O)c1cccc(O)c1N
Properties
Chemical formula	C₁₀H₁₂N₂O₄
Molar mass	224.21 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

Chemical compound

3-Hydroxykynurenine is a metabolite of tryptophan, which filters UV light in the human lens.^[1] It is one of two pigments identified as responsible for the goldenrod crab spider's (Misumena vatia) yellow coloration.

References

^ Malina, HZ; Martin, XD (1995). "Deamination of 3-hydroxykynurenine in bovine lenses: a possible mechanism of cataract formation in general". Graefes Arch Clin Exp Ophthalmol. 233 (1): 38–44. doi:10.1007/bf00177784. PMID 7721122. S2CID 25414197.
^ Schwarcz, Robert; John P. Bruno; Paul J. Muchowski; Hui-Qiu Wu (July 2012). "Kynurenines in the Mammalian Brain: When Physiology Meets Pathology". Nature Reviews Neuroscience. 13 (7): 465–477. doi:10.1038/nrn3257. PMC 3681811. PMID 22678511.

lysine→	Saccharopine Allysine α-Aminoadipic acid 2-Oxoadipic acid Glutaryl-CoA Glutaconyl-CoA Crotonyl-CoA β-Hydroxybutyryl-CoA
leucine→	β-Hydroxy β-methylbutyric acid β-Hydroxy β-methylbutyryl-CoA Isovaleryl-CoA α-Ketoisocaproic acid β-Ketoisocaproic acid β-Ketoisocaproyl-CoA β-Leucine β-Methylcrotonyl-CoA β-Methylglutaconyl-CoA β-Hydroxy β-methylglutaryl-CoA
tryptophan→alanine→	N′-Formylkynurenine Kynurenine Anthranilic acid 3-Hydroxykynurenine 3-Hydroxyanthranilic acid 2-Amino-3-carboxymuconic semialdehyde 2-Aminomuconic semialdehyde 2-Aminomuconic acid Glutaryl-CoA

G→pyruvate→
citrate

glycine→ serine→	3-Phosphoglyceric acid glycine→creatine: Glycocyamine Phosphocreatine Creatinine

G→glutamate→
α-ketoglutarate

histidine→	Urocanic acid Imidazol-4-one-5-propionic acid Formiminoglutamic acid Glutamate-1-semialdehyde
proline→	1-Pyrroline-5-carboxylic acid
arginine→	Agmatine Ornithine Citrulline Cadaverine Putrescine
other	cysteine+glutamate→glutathione: γ-Glutamylcysteine

G→propionyl-CoA→
succinyl-CoA

valine→	α-Ketoisovaleric acid Isobutyryl-CoA Methacrylyl-CoA 3-Hydroxyisobutyryl-CoA 3-Hydroxyisobutyric acid 2-Methyl-3-oxopropanoic acid
isoleucine→	2,3-Dihydroxy-3-methylpentanoic acid 2-Methylbutyryl-CoA Tiglyl-CoA 2-Methylacetoacetyl-CoA
methionine→	generation of homocysteine: S-Adenosyl methionine S-Adenosyl-L-homocysteine Homocysteine conversion to cysteine: Cystathionine α-Ketobutyric acid + Cysteine
threonine→	α-Ketobutyric acid
propionyl-CoA→	Methylmalonyl-CoA