L-ornithine
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
631 compounds within 3 steps: 32 in 1, 175 in 2, 424 in 3
Three steps
- transport of alanine and ornithine (cytosol to extracellular)
- L-selenocysteine selenide-lyase (L-alanine-forming)
- L-selenocysteine selenide-lyase (L-alanine-forming)
Catalysed by SLC7A6, SCLYextracellular space, cytosolOne of 3 routes
- L-Arginine:glycine amidinotransferase
- transport of D-alanine and glycine (cytosol to extracellular)
- Formation of Alanylalanine
Catalysed by GATM, SLC3A2, SLC7A10cytosol, extracellular space
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
Catalysed by SLC7A6, AGXT2, LDHA, LDHB and 3 moreextracellular space, cytosol, mitochondrial matrixOne of 2 routes
- transport of cysteine and ornithine (cytosol to extracellular)
- L-Cysteine:oxygen oxidoreductase
- 3-sulfino-L-alanine carboxy-lyase
Catalysed by SLC7A6, CDO1, GAD1, CSADextracellular space, cytosol
- transport of alanine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- CTP + AH2 + S-adenosyl-L-methionine = 3'-deoxy-3',4'-didehydro-CTP + 5'-deoxyadenosine + L-methionine + A + H2O + H(+)
Catalysed by SLC7A6, MOCOS, RSAD2extracellular space, cytosol
- transport of alanine and ornithine (cytosol to extracellular)
- L-selenocysteine selenide-lyase (L-alanine-forming)
- pyridoxine-5'-phosphate phosphohydrolase
Catalysed by SLC7A6, SCLY, PHOSPHO2, PDXPextracellular space, cytosolOne of 2 routes
- transport of alanine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- (S)-2-hydroxyglutarate + A = 2-oxoglutarate + AH2
Catalysed by SLC7A6, MOCOS, L2HGDHextracellular space, cytosol
- transport of ornithine and phenylalanine (cytosol to extracellular)
- Phenylalanine Transaminase, Mitochondrial
- 3-phenylpyruvate = enol-phenylpyruvate
Catalysed by SLC7A6, GOT2, TAT, MIFextracellular space, cytosol, mitochondrial matrix
- L-Arginine:glycine amidinotransferase
- S-Adenosyl-L-methionine:glycine N-methyltransferase
- sarcosine:oxygen oxidoreductase (demethylating)
Catalysed by GATM, GNMT, PIPOX, SARDHcytosol, peroxisomeOne of 5 routes
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- 3-fumarylpyruvate + H2O = fumarate + pyruvate + H(+)
Catalysed by SLC7A6, AGXT2, FAHD1extracellular space, cytosol, mitochondrial matrix
- transport of cysteine and ornithine (cytosol to extracellular)
- (R)-4'-phosphopantothenate:L-cysteine ligase
- N-[(R)-4'-Phosphopantothenoyl]-L-cysteine carboxy-lyase
Catalysed by SLC7A6, PPCS, PPCDCextracellular space, cytosolOne of 2 routes
- transport of alanine and ornithine (cytosol to extracellular)
- oxaloacetate + L-alanine = L-aspartate + pyruvate
- acetyl-CoA:L-aspartate N-acetyltransferase
Catalysed by SLC7A6, AGXT2, NAT8Lextracellular space, cytosol, mitochondrial matrixOne of 2 routes
- L-Arginine:glycine amidinotransferase
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of bilirubin and GSH (cytosol to extracellular)
Catalysed by GATM, GSS, SLCO1A2, SLCO1B3cytosol, extracellular spaceOne of 2 routes
- L-Arginine:glycine amidinotransferase
- transport of arginine and chloride (cytosol to extracellular)
- transport of chloride and oxalate (cytosol to extracellular)
Catalysed by GATM, SLC6A14, SLC26A6cytosol, extracellular spaceOne of 3 routes
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
Catalysed by SLC7A6, AGXT2, SLC16A4, SLC16A5 and 4 moreextracellular space, cytosol, mitochondrial matrixOne of 4 routes
- L-Arginine:glycine amidinotransferase
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of GSH and taurolithocholate (cytosol to extracellular)
Catalysed by GATM, GSS, SLCO1A2, SLCO1B3cytosol, extracellular spaceOne of 2 routes
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- L-serine + pyruvate = 3-hydroxypyruvate + L-alanine
Catalysed by SLC7A6, AGXT2, AGXTextracellular space, cytosol, mitochondrial matrixOne of 2 routes
- transport of ornithine and tyrosine (cytosol to extracellular)
- L-tyrosine:2-oxoglutarate aminotransferase
- 3-(4-hydroxyphenyl)pyruvate + O2 = (S)-4-hydroxymandelate + CO2
Catalysed by SLC7A6, GOT2, GOT1, TAT and 1 moreextracellular space, cytosol
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- aceneuramate = aldehydo-N-acetyl-D-mannosamine + pyruvate
Catalysed by SLC7A6, AGXT2, NPLextracellular space, cytosol, mitochondrial matrix
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O
Catalysed by SLC7A6, AGXT2, TYW1B, TYW1extracellular space, cytosol, mitochondrial matrixOne of 5 routes
- transport of cysteine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- all-trans-13,14-dihydroretinol + A = all-trans-retinol + AH2
Catalysed by SLC7A6, MOCOS, RETSATextracellular space, cytosol
- transport of ornithine and tyrosine (cytosol to extracellular)
- thyroid peroxidase (iodine)
- iodide:hydrogen-peroxide oxidoreductase
Catalysed by SLC7A6, TPOextracellular space, cytosolOne of 2 routes
- transport of alanine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- 3,3',5'-triiodo-L-thyronine sulfate + iodide + A + H(+) = L-thyroxine sulfate + AH2
Catalysed by SLC7A6, MOCOS, DIO1extracellular space, cytosol
- transport of alanine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- 3,3'-diiodo-L-thyronine + iodide + A + H(+) = 3,3',5-triiodo-L-thyronine + AH2
Catalysed by SLC7A6, MOCOS, DIO1, DIO3extracellular space, cytosolOne of 2 routes
- transport of alanine and ornithine (cytosol to extracellular)
- Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
- 3,3'-diiodo-L-thyronine sulfate + iodide + A + H(+) = 3,3',5-triiodo-L-thyronine sulfate + AH2
Catalysed by SLC7A6, MOCOS, DIO1extracellular space, cytosolOne of 2 routes
- L-ornithine carboxy-lyase (putrescine-forming)
- acetyl-CoA:putrescine N-acetyltransferase
- Fatty Acid Beta Oxidation (C18:3->C16:3), Mitochondrial
Catalysed by ODC1, SAT1, SAT2, HADHA and 2 morecytosol, mitochondrial matrix
- L-Arginine:glycine amidinotransferase
- transport of arginine and chloride (cytosol to extracellular)
- transport of betaine and chloride (cytosol to extracellular)
Catalysed by GATM, SLC6A14, SLC6A12cytosol, extracellular spaceOne of 3 routes
- transport of alanine and ornithine (cytosol to extracellular)
- beta-alanine(out) + L-alanine(in) = beta-alanine(in) + L-alanine(out)
- beta-alanine:2-oxoglutarate aminotransferase
Catalysed by SLC7A6, SLC7A10, ABATextracellular space, cytosol, inner side of the membrane, outer side of the membrane, mitochondrial matrix
- Amino Acid-Polyamine-Organocation (Apc) Tcdb:2.A.3.8.15
- L-Citrulline:L-aspartate ligase (AMP-forming)
- 2-(Nomega-L-arginino)succinate arginine-lyase (fumarate-forming)
Catalysed by SLC7A9, ASS1, ASLextracellular space, cytosolOne of 2 routes
- transport of cysteine and ornithine (cytosol to extracellular)
- L-Cysteine:2-oxoglutarate aminotransferase
- 3-mercaptopyruvate sulfurtransferase (hydrogen-cyanide)
Catalysed by SLC7A6, GOT2, GOT1, MPST and 1 moreextracellular space, cytosol
- transport of alanine and ornithine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- pyruvate kinase (dTDP)
Catalysed by SLC7A6, AGXT2, PKM, PKLRextracellular space, cytosol, mitochondrial matrix
- transport of ornithine and tryptophan (cytosol to extracellular)
- L-tryptophan decarboxy-lyase
- Tryptamine:oxygen oxidoreductase(deaminating)
Catalysed by SLC7A6, DDC, AOC1, MAOA and 1 moreextracellular space, cytosolOne of 2 routes