3-hydroxy-L-kynurenine
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
546 compounds within 3 steps: 5 in 1, 104 in 2, 437 in 3
Three steps
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- Fatty Acid Beta Oxidation (C10:2->C8:1), Mitochondrial
Catalysed by KYNU, ECHS1, ACAA2, HADHmitochondrial matrixOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- trans-4-hydroxy-L-proline(out) + L-alanine(in) + Na(+)(out) = trans-4-hydroxy-L-proline(in) + L-alanine(out) + Na(+)(in)
- trans-4-hydroxy-L-proline + a quinone = (3R,5S)-1-pyrroline-3-hydroxy-5-carboxylate + a quinol + H(+)
Catalysed by KYNU, SLC1A4, PRODH2inner side of the membrane, outer side of the membraneOne of 3 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and chloride (cytosol to extracellular)
- Peroxidase
Catalysed by KYNU, SLC6A14, LPOextracellular space, cytosolOne of 4 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and chloride (cytosol to extracellular)
- transport of chloride (cytosol to extracellular)
Catalysed by KYNU, SLC6A14, SLC12A2, SLC12A1extracellular space, cytosolOne of 3 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- medium-chain acyl-CoA ligase (hexanoic acid)
Catalysed by KYNU, ACSM4, ACSM1, ACSM2A and 3 moremitochondrial matrix, cytosolOne of 6 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- long-chain-fatty-acid-CoA ligase (elaidate)
Catalysed by KYNU, SLC27A2, ACSL4, ACSL3 and 5 moremitochondrial matrix, cytosolOne of 5 routes
- 3-hydroxy-L-kynurenine + glyoxylate = xanthurenate + glycine + H2O
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- Glutathione: 5-HPETE oxidoreductase
Catalysed by KYAT3, AADAT, GSS, GPX5 and 8 morecytosolOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- Propanoyl-CoA:acetyl-CoA C-acyltransferase
Catalysed by KYNU, ACAA1, SCP2, MYO5Bmitochondrial matrix, peroxisomeOne of 7 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- Transport of L-Cystine (L-Alanine antiport) by B0, +At Transporter
- L-cystine thiocysteine-lyase (deaminating
Catalysed by KYNU, SLC7A9, SLC3A1, CTHextracellular space, cytosol
- L-kynurenine + NADPH + O2 + H(+) = 3-hydroxy-L-kynurenine + NADP(+) + H2O
- Kynurenine-Oxoglutarate Transaminase
- kynurenate(out) + a dicarboxylate(in) = kynurenate(in) + a dicarboxylate(out)
Catalysed by KMO, KYAT3, AADAT, SLC22A8mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 4 routes
- L-kynurenine + NADPH + O2 + H(+) = 3-hydroxy-L-kynurenine + NADP(+) + H2O
- 2-oxo-3-sulfanylpropanoate + L-kynurenine = kynurenate + L-cysteine + H2O
- K(+)(in) + L-cysteine(out) + 3 Na(+)(out) + H(+)(out) = K(+)(out) + L-cysteine(in) + 3 Na(+)(in) + H(+)(in)
Catalysed by KMO, AADAT, SLC1A1inner side of the membrane, outer side of the membraneOne of 4 routes
- L-kynurenine + NADPH + O2 + H(+) = 3-hydroxy-L-kynurenine + NADP(+) + H2O
- Transport of L-Kynurenine
- L-Phenylalanine:tRNA(Ala) ligase (AMP-forming)
Catalysed by KMO, SLC7A8, FARSB, FARSAextracellular space, cytosol
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and isoleucine (cytosol to extracellular)
- L-Isoleucine:tRNA(Ile) ligase (AMP-forming)
Catalysed by KYNU, SLC7A5, IARS1extracellular space, cytosol
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and glutamine (cytosol to extracellular)
- L-Glutamine:tRNA(Gln) ligase (AMP-forming)
Catalysed by KYNU, SLC3A2, SLC7A5, SLC7A10 and 1 moreextracellular space, cytosol
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and citrulline (cytosol to extracellular)
- L-citrulline + H(+) = isocyanate + L-ornithine
Catalysed by KYNU, SLC7A6, LACC1extracellular space, cytosol
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and asparagine (cytosol to extracellular)
- L-Asparagine:tRNA(Asn) ligase (AMP-forming)
Catalysed by KYNU, SLC7A5, NARS1extracellular space, cytosol
- 3-hydroxy-L-kynurenine + glyoxylate = xanthurenate + glycine + H2O
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- solute carrier organic anion transporter (cholate)
Catalysed by KYAT3, AADAT, GSS, SLCO1A2 and 1 morecytosol, extracellular spaceOne of 3 routes
- 3-hydroxy-L-kynurenine + glyoxylate = xanthurenate + glycine + H2O
- glycine:oxygen oxidoreductase (deaminating)
- glycolate:NADP+ oxidoreductase
Catalysed by KYAT3, AADAT, DAO, GRHPRperoxisome, cytosolOne of 3 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- transport of acetate and pyruvate (cytosol to extracellular)
Catalysed by KYNU, AGXT2, SLC16A4, SLC16A5 and 3 moremitochondrial matrix, extracellular space, cytosolOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- transport of formate and pyruvate (cytosol to extracellular)
Catalysed by KYNU, AGXT2, SLC16A4, SLC16A5 and 3 moremitochondrial matrix, extracellular space, cytosolOne of 4 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- transport of propanoate and pyruvate (cytosol to extracellular)
Catalysed by KYNU, AGXT2, SLC16A4, SLC16A5 and 4 moremitochondrial matrix, extracellular space, cytosolOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- transport of butyrate and pyruvate (cytosol to extracellular)
Catalysed by KYNU, AGXT2, SLC16A4, SLC16A5 and 4 moremitochondrial matrix, extracellular space, cytosolOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and chloride (cytosol to extracellular)
- Malonate Transport, Antiport with Chloride
Catalysed by KYNU, SLC6A14extracellular space, cytosolOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- L-Serine:pyruvate aminotransferase
Catalysed by KYNU, AGXT2, AGXTmitochondrial matrix, cytosolOne of 2 routes
- L-kynurenine + NADPH + O2 + H(+) = 3-hydroxy-L-kynurenine + NADP(+) + H2O
- Kynurenine-Oxoglutarate Transaminase
- kynurenate(out) + glutarate(in) = kynurenate(in) + glutarate(out)
Catalysed by KMO, KYAT3, AADAT, SLC22A6mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 4 routes
- 3-hydroxy-L-kynurenine + glyoxylate = xanthurenate + glycine + H2O
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of arachidonate and GSH (cytosol to extracellular)
Catalysed by KYAT3, AADAT, GSScytosol, extracellular spaceOne of 3 routes
- L-kynurenine + NADPH + O2 + H(+) = 3-hydroxy-L-kynurenine + NADP(+) + H2O
- Transport of L-Kynurenine
- L-lysine(in) + L-leucine(out) + Na(+)(out) = L-lysine(out) + L-leucine(in) + Na(+)(in)
Catalysed by KMO, SLC43A1, SLC7A7extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 7 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and ornithine (cytosol to extracellular)
- D-lysine(in) + L-ornithine(out) = D-lysine(out) + L-ornithine(in)
Catalysed by KYNU, SLC7A6, SLC25A2extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and arginine (cytosol to extracellular)
- Putrescine Export via Putrescine/Arginine Antiporter
Catalysed by KYNU, SLC7A6, SLC3A2, SLC7A7extracellular space, cytosolOne of 4 routes
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- transport of alanine and ornithine (cytosol to extracellular)
- D-arginine(in) + L-ornithine(out) = D-arginine(out) + L-ornithine(in)
Catalysed by KYNU, SLC7A6, SLC25A2extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes