N-formyl-L-kynurenine
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
256 compounds within 3 steps: 3 in 1, 46 in 2, 207 in 3
Three steps
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- L-Kynurenine hydrolase
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
Catalysed by AFMID, KYNUcytosol, mitochondrial matrixOne of 40 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of tryptophan and valine (cytosol to extracellular)
- L-Valine:2-oxoglutarate aminotransferase
Catalysed by IDO1, TDO2, IDO2, SLC7A5 and 1 moreextracellular space, cytosol, mitochondrial matrixOne of 3 routes
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- Transport of L-Kynurenine
- L-phenylalanine + (9Z)-octadecenoate = N-(9Z-octadecenoyl)-L-phenylalanine + H2O
Catalysed by AFMID, SLC7A8, PM20D1extracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- Transport of L-Kynurenine
- (5Z,8Z,11Z,14Z)-eicosatetraenoate + L-phenylalanine = N-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-L-phenylalanine + H2O
Catalysed by AFMID, SLC7A8, PM20D1extracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- Transport of L-Kynurenine
- N-(9Z-octadecenoyl)-L-leucine + H2O = L-leucine + (9Z)-octadecenoate
Catalysed by AFMID, SLC43A1, PM20D1extracellular space, cytosol
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of ornithine and tryptophan (cytosol to extracellular)
- D-histidine(in) + L-ornithine(out) + H(+)(in) = D-histidine(out) + L-ornithine(in) + H(+)(out)
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of arginine and tryptophan (cytosol to extracellular)
- L-homoarginine(in) + L-arginine(out) = L-homoarginine(out) + L-arginine(in)
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 4 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of histidine and tryptophan (cytosol to extracellular)
- Formation of homocarnosine
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- (6S)-5,6,7,8-tetrahydrofolate + formate + ATP = (6R)-10-formyltetrahydrofolate + ADP + phosphate
- N(1)-(5-phospho-beta-D-ribosyl)glycinamide + (6R)-10-formyltetrahydrofolate = N(2)-formyl-N(1)-(5-phospho-beta-D-ribosyl)glycinamide + (6S)-5,6,7,8-tetrahydrofolate + H(+)
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of glutamine and tryptophan (cytosol to extracellular)
- N(2)-formyl-N(1)-(5-phospho-beta-D-ribosyl)glycinamide + L-glutamine + ATP + H2O = 2-formamido-N(1)-(5-O-phospho-beta-D-ribosyl)acetamidine + L-glutamate + ADP + phosphate + H(+)
Catalysed by IDO1, TDO2, IDO2, SLC7A5 and 1 moreextracellular space, cytosol
Catalysed by AFMID, SLC7A8, CMA1extracellular space, cytosolOne of 3 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of threonine and tryptophan (cytosol to extracellular)
- L-threonine acetaldehyde-lyase (glycine-forming)
Catalysed by IDO1, TDO2, IDO2, SLC7A5extracellular space, cytosol
- L-tryptophan + O2 = N-formyl-L-kynurenine
- Transport of L-Tryptophan by Atb0 Transporter
- transport of chloride and choline (cytosol to extracellular)
Catalysed by IDO1, TDO2, IDO2, SLC6A14 and 1 moreextracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- L-Kynurenine hydrolase
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
Catalysed by AFMID, KYNU, AGXT2cytosol, mitochondrial matrixOne of 16 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of lysine and tryptophan (cytosol to extracellular)
- deoxyhypusine synthase (1,3-diaminopropane)
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of histidine and tryptophan (cytosol to extracellular)
- L-histidine:beta-alanine ligase (ADP-forming)
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- Transport of L-Kynurenine
- solute carrier (L-dopa)
Catalysed by AFMID, SLC43A1, SLC3A2, SLC7A5extracellular space, cytosolOne of 5 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- L-tryptophan(out) + L-aspartate(in) = L-tryptophan(in) + L-aspartate(out)
- carbamoyl-phosphate:L-aspartate carbamoyltransferase
Catalysed by IDO1, TDO2, IDO2, SLC7A13 and 1 moreinner side of the membrane, outer side of the membrane, cytosol
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of glutamine and tryptophan (cytosol to extracellular)
- L-glutamine:D-fructose-6-phosphate isomerase (deaminating)
Catalysed by IDO1, TDO2, IDO2, SLC7A5 and 2 moreextracellular space, cytosol
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- oxalate(in) + formate(out) = oxalate(out) + formate(in)
- oxalate(in) + sulfate(out) = oxalate(out) + sulfate(in)
Catalysed by AFMID, SLC26A6, SLC25A14, SLC26A2 and 2 moreinner side of the membrane, outer side of the membraneOne of 5 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of arginine and tryptophan (cytosol to extracellular)
- L-Arginine amidinohydrolase
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosolOne of 3 routes
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- L-Kynurenine hydrolase
- Transport of L-Cystine (L-Alanine antiport) by B0, +At Transporter
Catalysed by AFMID, KYNU, SLC7A9, SLC3A1cytosol, extracellular spaceOne of 9 routes
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- L-Kynurenine hydrolase
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
Catalysed by AFMID, KYNU, AGXT2cytosol, mitochondrial matrix
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of tryptophan and tyrosine (cytosol to extracellular)
- thyroid peroxidase (iodine)
Catalysed by IDO1, TDO2, IDO2, SLC7A5 and 1 moreextracellular space, cytosolOne of 3 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- L-tryptophan(out) + L-aspartate(in) = L-tryptophan(in) + L-aspartate(out)
- L-Aspartate:2-oxoglutarate aminotransferase
Catalysed by IDO1, TDO2, IDO2, SLC7A13 and 1 moreinner side of the membrane, outer side of the membrane, mitochondrial matrixOne of 5 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of arginine and tryptophan (cytosol to extracellular)
- L-Arginine, NADPH:Oxygen Oxidoreductase (Nitric-Oxide-Forming)
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 3 moreextracellular space, cytosolOne of 2 routes
- N-formyl-L-kynurenine + H2O = L-kynurenine + formate + H(+)
- L-kynurenine + glyoxylate = kynurenate + glycine + H2O
- transport of D-serine and glycine (cytosol to extracellular)
Catalysed by AFMID, KYAT3, AADAT, SLC3A2 and 1 moreextracellular space, cytosolOne of 4 routes
- L-tryptophan + O2 = N-formyl-L-kynurenine
- transport of ornithine and tryptophan (cytosol to extracellular)
- N2-Acetyl-L-ornithine amidohydrolase
Catalysed by IDO1, TDO2, IDO2, SLC7A6 and 1 moreextracellular space, cytosol