carnosine
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
124 compounds within 3 steps: 3 in 1, 14 in 2, 107 in 3
Three steps
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of ornithine and threonine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 13 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-aspartate + H(+) = beta-alanine + CO2
- acetyl-CoA:L-aspartate N-acetyltransferase
Catalysed by CNDP1, GADL1, CSAD, NAT8Lmitochondrial matrixOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- transport of chloride and oxalate (cytosol to extracellular)
Catalysed by CNDP1, SLC6A6, SLC6A14, SLC26A6extracellular space, cytosol
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of isoleucine and ornithine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 14 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of ornithine and proline (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 13 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- L-Ornithine:2-oxo-acid aminotransferase
Catalysed by CNDP1, SLC25A2, OATinner side of the membrane, outer side of the membrane, mitochondrial matrix
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- L-arginine carboxy-lyase (agmatine-forming)
Catalysed by CNDP1, SLC7A6inner side of the membrane, outer side of the membrane, mitochondrial matrix
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of cysteine and ornithine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 26 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- transport of betaine and chloride (cytosol to extracellular)
Catalysed by CNDP1, SLC6A6, SLC6A14, SLC6A12extracellular space, cytosolOne of 3 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of ornithine and tyrosine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 15 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- Transport by Y+Lat-2 into Extracellular Space
Catalysed by CNDP1, SLC7A6, SLC3A2inner side of the membrane, outer side of the membrane, extracellular space, cytosol
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- Phenylalanine Transaminase, Mitochondrial
Catalysed by CNDP1, SLC7A8, GOT2, TATinner side of the membrane, outer side of the membrane, mitochondrial matrixOne of 5 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of lysine and ornithine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A5, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 13 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- transport of glutamine and ornithine (cytosol to extracellular)
Catalysed by CNDP1, SLC25A2, SLC7A6inner side of the membrane, outer side of the membrane, extracellular space, cytosolOne of 23 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- transport of trans-4-hydroxy-L-proline (cytosol to extracellular)
Catalysed by CNDP1, SLC6A6, SLC6A14, CLTRN and 1 moreextracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- Transport of 3-Ureidopropionate
Catalysed by CNDP1, SLC6A6, SLC6A14extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- L-phenylalanine carboxy-lyase (phenylethylamine-forming)
Catalysed by CNDP1, SLC7A8, DDCinner side of the membrane, outer side of the membrane, cytosol
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- S-methylmercury-L-cysteine(in) + L-phenylalanine(out) = S-methylmercury-L-cysteine(out) + L-phenylalanine(in)
Catalysed by CNDP1, SLC7A8inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
- 2-aminoisobutanoate(out) + L-alanine(in) = 2-aminoisobutanoate(in) + L-alanine(out)
Catalysed by CNDP1, AGXT2, SLC7A10inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- 2-Methylbutyrylglycine Transport, Extracellular
Catalysed by CNDP1, SLC6A6, SLC6A14, SLC6A5extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- Peroxidase
Catalysed by CNDP1, SLC6A6, SLC6A14, LPOextracellular space, cytosolOne of 4 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- transport of chloride (cytosol to extracellular)
Catalysed by CNDP1, SLC6A6, SLC6A14, SLC12A2 and 1 moreextracellular space, cytosolOne of 3 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine + H(+) = histamine + CO2
- amine oxidase copper containing (histamine)
Catalysed by CNDP1, HDC, AOC2, AOC1 and 1 morecytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-aspartate + H(+) = beta-alanine + CO2
- K(+)(in) + L-aspartate(out) + 3 Na(+)(out) + H(+)(out) = K(+)(out) + L-aspartate(in) + 3 Na(+)(in) + H(+)(in)
Catalysed by CNDP1, GADL1, CSAD, SLC1A7 and 4 moreinner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- 4-aminobutanoate + L-histidine + ATP = L-homocarnosine + ADP + phosphate + H(+)
- Transport of Homocarnosine
Catalysed by CNDP1, CARNS1extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- L-Phenylalanine:tRNA(Ala) ligase (AMP-forming)
Catalysed by CNDP1, SLC7A8, FARSB, FARSAinner side of the membrane, outer side of the membrane, cytosol
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- transport of chloride and formate (cytosol to extracellular)
Catalysed by CNDP1, SLC6A6, SLC6A14, SLC26A4extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- Malonate Transport, Antiport with Chloride
Catalysed by CNDP1, SLC6A6, SLC6A14extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- L-ornithine(out) + L-lysine(in) = L-ornithine(in) + L-lysine(out)
Catalysed by CNDP1, SLC25A2, SLC25A15inner side of the membrane, outer side of the membraneOne of 3 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- D-lysine(in) + L-ornithine(out) = D-lysine(out) + L-ornithine(in)
Catalysed by CNDP1, SLC25A2inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- L-ornithine carboxy-lyase (putrescine-forming)
Catalysed by CNDP1, SLC25A2, ODC1inner side of the membrane, outer side of the membrane, cytosolOne of 4 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- D-arginine(in) + L-ornithine(out) = D-arginine(out) + L-ornithine(in)
Catalysed by CNDP1, SLC25A2inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
- D-cysteine(out) + L-alanine(in) = D-cysteine(in) + L-alanine(out)
Catalysed by CNDP1, AGXT2, SLC7A10inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
- D-serine(out) + L-alanine(in) = D-serine(in) + L-alanine(out)
Catalysed by CNDP1, AGXT2, SLC7A10inner side of the membrane, outer side of the membraneOne of 6 routes
- carnosine + H2O = beta-alanine + L-histidine
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
- gamma-glutamyltransferase (alanine)
Catalysed by CNDP1, AGXT2, GGT1, GGT5 and 4 moreextracellular space, cytosol
- carnosine + H2O = beta-alanine + L-histidine
- transport of beta-alanine and chloride (cytosol to extracellular)
- Neurotransmitter:Sodium Symporter (Nss) Tcdb:2.A.22.3.3
Catalysed by CNDP1, SLC6A6, SLC6A14extracellular space, cytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- L-Arginine:glycine amidinotransferase
Catalysed by CNDP1, SLC25A2, GATMinner side of the membrane, outer side of the membrane, cytosolOne of 25 routes
- carnosine + H2O = beta-alanine + L-histidine
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
- D-alanine(out) + L-alanine(in) = D-alanine(in) + L-alanine(out)
Catalysed by CNDP1, AGXT2, SLC7A10inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- 2-(Nomega-L-arginino)succinate arginine-lyase (fumarate-forming)
Catalysed by CNDP1, SLC7A6, ASLinner side of the membrane, outer side of the membrane, cytosolOne of 4 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- 4-aminobutanoate + L-arginine = 4-guanidinobutanoate + L-ornithine
Catalysed by CNDP1, SLC7A6, GATMinner side of the membrane, outer side of the membrane
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- L-dopa(out) + L-phenylalanine(in) = L-dopa(in) + L-phenylalanine(out)
Catalysed by CNDP1, SLC7A8inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-aspartate + H(+) = beta-alanine + CO2
- IMP:L-aspartate ligase (GDP-forming)
Catalysed by CNDP1, GADL1, CSAD, ADSS2 and 1 morecytosolOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- D-ornithine(in) + L-ornithine(out) = D-ornithine(out) + L-ornithine(in)
Catalysed by CNDP1, SLC25A2inner side of the membrane, outer side of the membraneOne of 2 routes
- carnosine + H2O = beta-alanine + L-histidine
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- L-Arginine:glycine amidinotransferase
Catalysed by CNDP1, SLC7A6, GATMinner side of the membrane, outer side of the membrane, cytosolOne of 3 routes