(S)-1-pyrroline-5-carboxylate
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
245 compounds within 3 steps: 4 in 1, 33 in 2, 208 in 3
Three steps
- L-Proline:NADP+ 5-oxidoreductase
- transport of proline and tryptophan (cytosol to extracellular)
- L-tryptophan:oxygen 2,3-oxidoreductase (decyclizing)
Catalysed by PYCR3, PYCR2, ABCA1, SLC7A5 and 3 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- Transport of L-Proline by the Apical Imino Amino Acid Transporters
- transport of chloride and formate (cytosol to extracellular)
Catalysed by PYCR3, PYCR2, CLTRN, SLC6A20 and 1 morecytosol, extracellular spaceOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- Transport of L-Proline by the Apical Imino Amino Acid Transporters
- Malonate Transport, Antiport with Chloride
Catalysed by PYCR3, PYCR2, CLTRN, SLC6A20cytosol, extracellular spaceOne of 2 routes
- L-proline + NAD(+) = (S)-1-pyrroline-5-carboxylate + NADH + 2 H(+)
- L-proline + a quinone = (S)-1-pyrroline-5-carboxylate + a quinol + H(+)
- (S)-dihydroorotate + a quinone = orotate + a quinol
Catalysed by PYCR1, PYCR3, PYCR2, PRODH and 2 moreOne of 2 routes
- L-proline + a quinone = (S)-1-pyrroline-5-carboxylate + a quinol + H(+)
- (S)-dihydroorotate + a quinone = orotate + a quinol
- orotate(out) + nicotinate(in) = orotate(in) + nicotinate(out)
Catalysed by PRODH, PRODH2, DHODH, SLC22A12inner side of the membrane, outer side of the membraneOne of 2 routes
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- L-ornithine(out) + L-lysine(in) = L-ornithine(in) + L-lysine(out)
Catalysed by ALDH4A1, OAT, SLC25A2, SLC25A15cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 5 routes
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- D-lysine(in) + L-ornithine(out) = D-lysine(out) + L-ornithine(in)
Catalysed by ALDH4A1, OAT, SLC25A2cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- L-ornithine carboxy-lyase (putrescine-forming)
Catalysed by ALDH4A1, OAT, ODC1cytosol, mitochondrial matrixOne of 4 routes
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- D-arginine(in) + L-ornithine(out) = D-arginine(out) + L-ornithine(in)
Catalysed by ALDH4A1, OAT, SLC25A2cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-proline + a quinone = (S)-1-pyrroline-5-carboxylate + a quinol + H(+)
- a quinone + succinate = fumarate + a quinol
- transport of fumarate and thiosulfate (cytosol to mitochondria)
Catalysed by PRODH, PRODH2, SDHB, SLC25A10mitochondrial matrix, cytosolOne of 3 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of methionine and proline (cytosol to extracellular)
- L-Methionine:oxygen oxidoreductase (deaminating)
Catalysed by PYCR3, PYCR2, SLC7A5, IL4I1cytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of cysteine and proline (cytosol to extracellular)
- De novo synthesis of 2Fe2S
Catalysed by PYCR3, PYCR2, SLC7A5, NDUFAB1 and 6 morecytosol, extracellular space, mitochondrial matrix
- L-Proline:NADP+ 5-oxidoreductase
- transport of isoleucine and proline (cytosol to extracellular)
- L-isoleucine + 2-oxoglutarate = (S)-3-methyl-2-oxopentanoate + L-glutamate
Catalysed by PYCR3, PYCR2, SLC7A5, BCAT2 and 1 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- D-cysteine(out) + L-alanine(in) = D-cysteine(in) + L-alanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A10cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- D-serine(out) + L-alanine(in) = D-serine(in) + L-alanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A10cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 10 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- succinyl-CoA + glycine + H(+) = 5-aminolevulinate + CO2 + CoA
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 2 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of isoleucine and proline (cytosol to extracellular)
- L-Leucine:2-oxoglutarate aminotransferase
Catalysed by PYCR3, PYCR2, SLC7A5, BCAT1cytosol, extracellular spaceOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of proline and tyrosine (cytosol to extracellular)
- L-tyrosine:2-oxoglutarate aminotransferase
Catalysed by PYCR3, PYCR2, SLC7A5, GOT2 and 2 morecytosol, extracellular spaceOne of 3 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- chenodeoxycholoyl-CoA + glycine = glycochenodeoxycholate + CoA + H(+)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- bile acid-CoA: amino acid N-acyltransferase
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular space, peroxisomeOne of 3 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- glycine + 2-oxoglutarate = glyoxylate + L-glutamate
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular spaceOne of 11 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- bile acid-CoA:amino acid N-acyltransferase (glycine)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular spaceOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- Acetyl-CoA:glycine C-acetyltransferase
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular space, mitochondrial matrix
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- gamma-glutamyltransferase (alanine)
Catalysed by PYCR3, PYCR2, SLC7A5, GGT1 and 5 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- dihydrolipoyl dehydrogenase ([protein]-N6-(lipoyl)lysine)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 2 morecytosol, extracellular space, mitochondrial matrix
- L-Proline:NADP+ 5-oxidoreductase
- Transport of L-Proline by the Apical Imino Amino Acid Transporters
- Neurotransmitter:Sodium Symporter (Nss) Tcdb:2.A.22.3.3
Catalysed by PYCR3, PYCR2, CLTRN, SLC6A20 and 1 morecytosol, extracellular spaceOne of 2 routes
- L-proline + NAD(+) = (S)-1-pyrroline-5-carboxylate + NADH + 2 H(+)
- L-proline + a quinone = (S)-1-pyrroline-5-carboxylate + a quinol + H(+)
- 1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + H(+) = beta-nicotinamide D-riboside + a quinol
Catalysed by PYCR1, PYCR3, PYCR2, PRODH and 2 moreOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- D-alanine(out) + L-alanine(in) = D-alanine(in) + L-alanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A10cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- sarcosine + O2 + H2O = formaldehyde + glycine + H2O2
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular spaceOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- (6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + glycine + H2O = (6S)-5,6,7,8-tetrahydrofolate + L-serine
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 2 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of arginine and proline (cytosol to extracellular)
- 2-(Nomega-L-arginino)succinate arginine-lyase (fumarate-forming)
Catalysed by PYCR3, PYCR2, SLC7A6, ASLcytosol, extracellular spaceOne of 8 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of arginine and proline (cytosol to extracellular)
- 4-aminobutanoate + L-arginine = 4-guanidinobutanoate + L-ornithine
Catalysed by PYCR3, PYCR2, SLC7A6, GATMcytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of phenylalanine and proline (cytosol to extracellular)
- L-dopa(out) + L-phenylalanine(in) = L-dopa(in) + L-phenylalanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A8cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- Aspartate Intake by System Asct-1 Transporter
- IMP:L-aspartate ligase (GDP-forming)
Catalysed by PYCR3, PYCR2, ADSS2, ADSS1cytosol, extracellular spaceOne of 4 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of arginine and proline (cytosol to extracellular)
- beta-alanine + L-arginine = 3-guanidinopropanoate + L-ornithine
Catalysed by PYCR3, PYCR2, SLC7A6, GATMcytosol, extracellular space
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
Catalysed by ALDH4A1, OAT, SLC25A2cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 7 routes
- aldehyde dehydrogenase (1-pyrroline-5-carboxylate)
- L-Ornithine:2-oxo-acid aminotransferase
- D-ornithine(in) + L-ornithine(out) = D-ornithine(out) + L-ornithine(in)
Catalysed by ALDH4A1, OAT, SLC25A2cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- an acyl-CoA + glycine = an N-acylglycine + CoA + H(+)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 3 morecytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of cysteine and proline (cytosol to extracellular)
- L-Cysteine:2-oxoglutarate aminotransferase
Catalysed by PYCR3, PYCR2, SLC7A5, GOT2 and 1 morecytosol, extracellular spaceOne of 3 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- L-Arginine:glycine amidinotransferase
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular spaceOne of 5 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- D-threonine(out) + L-alanine(in) = D-threonine(in) + L-alanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A10cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 2 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of proline and tyrosine (cytosol to extracellular)
- L-Tyrosine,L-dopa:oxygen oxidoreductase
Catalysed by PYCR3, PYCR2, SLC7A5, TYRcytosol, extracellular space
- L-Proline:NADP+ 5-oxidoreductase
- transport of glycine and proline (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine + glycine + ATP = glutathione + ADP + phosphate + H(+)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A6 and 1 morecytosol, extracellular spaceOne of 3 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of alanine and proline (cytosol to extracellular)
- L-threonine(out) + L-alanine(in) = L-threonine(in) + L-alanine(out)
Catalysed by PYCR3, PYCR2, SLC7A5, SLC7A10cytosol, extracellular space, inner side of the membrane, outer side of the membraneOne of 8 routes
- L-Proline:NADP+ 5-oxidoreductase
- transport of lysine and proline (cytosol to extracellular)
- N6-(L-1,3-Dicarboxypropyl)-L-lysine:NADP+ oxidoreductase (L-lysine-forming)
Catalysed by PYCR3, PYCR2, SLC7A6, AASScytosol, extracellular space, mitochondrial matrix