histamine
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
286 compounds within 3 steps: 5 in 1, 60 in 2, 221 in 3
Three steps
- transport of GSH and histamine (cytosol to extracellular)
- glutathione gamma-glutamylaminopeptidase
- 2 L-cysteinylglycine + [protein]-disulfide = L-cystine-bis-glycine + [protein]-dithiol
Catalysed by SLCO1A2, SLCO1B3, GGTLC3, GGT1 and 5 moreextracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- arachidonate to 8-peroxy-(5Z,9E,11Z,14Z)-eicosatetraenoate conversion
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1extracellular space, cytosolOne of 2 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- Chymase
Catalysed by HDC, SLC7A8, CMA1inner side of the membrane, outer side of the membrane, extracellular space
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- N-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-L-serine + H2O = (5Z,8Z,11Z,14Z)-eicosatetraenoate + L-serine
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, FAAH and 1 moreextracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of prostaglandin G2 (cytosol to extracellular)
- prostaglandin G2 = (15S)-15-hydroperoxy-prostaglandin E2
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, PTGESextracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of acetylcholine (cytosol to extracellular)
- Acetylcholine aectylhydrolase
Catalysed by SLCO1A2, SLCO1B3, BCHE, ACHEextracellular space, cytosolOne of 5 routes
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- L-cysteine hydrogen-sulfide-lyase (deaminating
Catalysed by SLCO1A2, SLCO1B3, CTHextracellular space, cytosolOne of 2 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- L-phenylalanine,tetrahydrobiopterin:oxygen oxidoreductase(4-hydroxylating)
Catalysed by HDC, SLC7A8, PAHinner side of the membrane, outer side of the membrane, cytosol
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- Arachidonate:CoA ligase (AMP-forming)
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, SLC27A2 and 7 moreextracellular space, cytosolOne of 3 routes
- transport of histamine (cytosol to extracellular)
- solute carrier organic anion transporter (cholate)
- Cholate:CoA ligase (AMP-forming)
Catalysed by SLCO1A2, SLCO1B3, SLC27A2, SLC27A5extracellular space, cytosol, endoplasmic reticulum
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and leucine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A9, SLC3A1extracellular space, cytosolOne of 19 routes
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- arachidonate:oxygen 12-oxidoreductase
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, ALOX12extracellular space, cytosolOne of 4 routes
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- arachidonate:oxygen 15-oxidoreductase
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, ALOX15B and 1 moreextracellular space, cytosolOne of 6 routes
- transport of histamine (cytosol to extracellular)
- transport of arachidonate (cytosol to extracellular)
- Arachidonate:oxygen 5-oxidoreductase
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, ALOX5extracellular space, cytosol
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-phenylalanine + O2 = (4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tyrosine
Catalysed by HDC, SLC7A8, PAHinner side of the membrane, outer side of the membrane
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and homoserine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A5extracellular space, cytosolOne of 10 routes
- transport of GSH and histamine (cytosol to extracellular)
- alcohol dehydrogenase (formaldehyde)
- S-formylglutathione + H2O = formate + glutathione + H(+)
Catalysed by SLCO1A2, SLCO1B3, ADH1C, ADH1A and 5 moreextracellular space, cytosol
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and histidine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A6extracellular space, cytosolOne of 15 routes
- transport of GSH and histamine (cytosol to extracellular)
- (R)-S-Lactoylglutathione methylglyoxal-lyase (isomerizing)
- (R)-S-lactoylglutathione + H2O = (R)-lactate + glutathione + H(+)
Catalysed by SLCO1A2, SLCO1B3, GLO1, GLOD4 and 1 moreextracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- solute carrier organic anion transporter (chenodiol)
- octyl beta-D-glucose + chenodeoxycholate = beta-D-glucosyl-(1->3)-O-chenodeoxycholate + octan-1-ol
Catalysed by SLCO1A2, SLCO1B3, GBA2extracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of S-glutathionyl-2-4-dinitrobenzene (cytosol to extracellular)
- steroid sulfatase (sulfoglycolithocholate)
Catalysed by SLCO1A2, SLCO1B3, STSextracellular space, cytosolOne of 7 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- L-Arginine amidinohydrolase
Catalysed by HDC, SLC7A6, ARG1inner side of the membrane, outer side of the membrane, cytosolOne of 3 routes
- transport of GSH and histamine (cytosol to extracellular)
- Glutathione: 5-HPETE oxidoreductase
- cystine to cysteine conversion
Catalysed by SLCO1A2, SLCO1B3, GPX5, GPX1 and 7 moreextracellular space, cytosolOne of 6 routes
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of citrulline and cysteine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A6extracellular space, cytosolOne of 20 routes
- transport of histamine (cytosol to extracellular)
- transport of S-glutathionyl-2-4-dinitrobenzene (cytosol to extracellular)
- 3,3',5-triiodo-L-thyronine,iodide:acceptor oxidoreductase (iodinating)
Catalysed by SLCO1A2, SLCO1B3, DIO1, DIO2extracellular space, cytosolOne of 9 routes
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and valine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A5extracellular space, cytosolOne of 12 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- L-Arginine, NADPH:Oxygen Oxidoreductase (Nitric-Oxide-Forming)
Catalysed by HDC, SLC7A6, NOS3, NOS1 and 1 moreinner side of the membrane, outer side of the membrane, cytosolOne of 2 routes
Catalysed by SLCO1A2, SLCO1B3extracellular space, cytosolOne of 3 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- N2-Acetyl-L-ornithine amidohydrolase
Catalysed by HDC, SLC25A2, ACY1inner side of the membrane, outer side of the membrane, cytosol
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- L-phenylalanine:oxygen 2-oxidoreductase (decarboxylating)
Catalysed by HDC, SLC7A8, EPXinner side of the membrane, outer side of the membrane, cytosol
- transport of histamine (cytosol to extracellular)
- transport of prostaglandin E2 (cytosol to extracellular)
- prostaglandin E2(out) + 2 (S)-lactate(in) = prostaglandin E2(in) + 2 (S)-lactate(out)
Catalysed by SLCO1A2, SLCO1B3, SLCO2A1extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 14 routes
- transport of histamine (cytosol to extracellular)
- solute carrier organic anion transporter (S-glutathionyl-2-4-dinitrobenzene)
- taurochenodeoxycholate + 3'-phosphoadenylyl sulfate = taurochenodeoxycholate 3-sulfate + adenosine 3',5'-bisphosphate + H(+)
Catalysed by SLCO1A2, SLCO1B3, SLC7A9, SULT2A1extracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of dopamine (cytosol to extracellular)
- Peroxidase
Catalysed by SLCO1A2, SLCO1B3, MPOextracellular space, cytosol, lysosomeOne of 4 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-phenylalanine(out) = L-histidine(out) + L-phenylalanine(in)
- (S)-lactate + L-phenylalanine = N-[(S)-lactoyl]-L-phenylalanine + H2O
Catalysed by HDC, SLC7A8, CNDP2inner side of the membrane, outer side of the membrane
- transport of GSH and histamine (cytosol to extracellular)
- alcohol dehydrogenase (formaldehyde)
- alcohol dehydrogenase (formaldehyde)
Catalysed by SLCO1A2, SLCO1B3, ADH1C, ADH1A and 4 moreextracellular space, cytosol
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and threonine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A5extracellular space, cytosolOne of 12 routes
- transport of GSH and histamine (cytosol to extracellular)
- (R)-S-Lactoylglutathione methylglyoxal-lyase (isomerizing)
- (R)-Lactaldehyde:NAD+ oxidoreductase (glutathione-formylating)
Catalysed by SLCO1A2, SLCO1B3, GLO1, GLOD4 and 7 moreextracellular space, cytosol
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and isoleucine (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A5extracellular space, cytosolOne of 13 routes
- transport of GSH and histamine (cytosol to extracellular)
- cystine to cysteine conversion
- transport of cysteine and proline (cytosol to extracellular)
Catalysed by SLCO1A2, SLCO1B3, SLC7A5extracellular space, cytosolOne of 10 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(in) + L-ornithine(out) + H(+)(in) = L-histidine(out) + L-ornithine(in) + H(+)(out)
- L-Ornithine:2-oxo-acid aminotransferase
Catalysed by HDC, SLC25A2, OATinner side of the membrane, outer side of the membrane, mitochondrial matrix
- transport of histamine (cytosol to extracellular)
- transport of dopamine (cytosol to extracellular)
- dopamine,ascorbate:oxygen oxidoreductase (beta-hydroxylating)
Catalysed by SLCO1A2, SLCO1B3, DBHextracellular space, cytosolOne of 19 routes
- transport of histamine (cytosol to extracellular)
- transport of estrone 3-sulfate (cytosol to extracellular)
- Estrone 3-sulfate sulfohydrolase
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, STSextracellular space, cytosolOne of 3 routes
- transport of histamine (cytosol to extracellular)
- transport of estrone 3-sulfate (cytosol to extracellular)
- propanoate(in) + estrone 3-sulfate(out) = propanoate(out) + estrone 3-sulfate(in)
Catalysed by SLCO1A2, SLCO1B3, SLCO1B1, SLC22A9extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 4 routes
- transport of GSH and histamine (cytosol to extracellular)
- Sulfide:glutathione,quinone oxidoreductase
- Persulfide dioxygenase
Catalysed by SLCO1A2, SLCO1B3, SQOR, ETHE1extracellular space, cytosol, mitochondrial matrixOne of 2 routes
- L-histidine + H(+) = histamine + CO2
- L-histidine(out) + L-arginine(in) + Na(+)(out) = L-histidine(in) + L-arginine(out) + Na(+)(in)
- L-arginine carboxy-lyase (agmatine-forming)
Catalysed by HDC, SLC7A6inner side of the membrane, outer side of the membrane, mitochondrial matrix
- transport of histamine (cytosol to extracellular)
- transport of S-glutathionyl-2-4-dinitrobenzene (cytosol to extracellular)
- aryl sulfotransferase (PAPS)
Catalysed by SLCO1A2, SLCO1B3, SULT1A3, SULT1A4 and 2 moreextracellular space, cytosolOne of 2 routes
- transport of histamine (cytosol to extracellular)
- transport of S-glutathionyl-2-4-dinitrobenzene (cytosol to extracellular)
- L-thyroxine + 3'-phosphoadenylyl sulfate = L-thyroxine sulfate + adenosine 3',5'-bisphosphate + H(+)
Catalysed by SLCO1A2, SLCO1B3, SULT1A3, SULT1A4 and 1 moreextracellular space, cytosol
- transport of histamine (cytosol to extracellular)
- transport of S-glutathionyl-2-4-dinitrobenzene (cytosol to extracellular)
- thyroxine 5'-deiodinase (3,3-diiodo-L-thyronine)
Catalysed by SLCO1A2, SLCO1B3, DIO1, DIO3 and 1 moreextracellular space, cytosolOne of 3 routes
- transport of histamine (cytosol to extracellular)
- transport of serotonin (cytosol to extracellular)
- acetyl-CoA:aralkylamine N-acetyltransferase
Catalysed by SLCO1A2, SLCO1B3, AANATextracellular space, cytosol
- transport of GSH and histamine (cytosol to extracellular)
- Formation of Homocystine
- Trimethylaminoacetate:L-homosysteine S-methyltransferase
Catalysed by SLCO1A2, SLCO1B3, BHMT, BHMT2extracellular space, cytosol