CHEBI:1146900
362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API
1,327 compounds within 3 steps: 109 in 1, 446 in 2, 772 in 3
Three steps
- acyl-CoA:sphingosine N-acyltransferase
- sphingosine N-acyltransferase (sphinganine)
- dihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (C4-hydroxylating)
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 8 moreGolgi apparatus, cytosolOne of 3 routes
- bile acid-CoA:amino acid N-acyltransferase (taurodeoxycholate)
- taurine + L-arginine = taurocyamine + L-ornithine
- L-ornithine(out) + L-lysine(in) = L-ornithine(in) + L-lysine(out)
Catalysed by BAAT, GATM, SLC25A2, SLC25A15cytosol, inner side of the membrane, outer side of the membraneOne of 7 routes
- bile acid-CoA:amino acid N-acyltransferase (taurodeoxycholate)
- taurine + L-arginine = taurocyamine + L-ornithine
- D-lysine(in) + L-ornithine(out) = D-lysine(out) + L-ornithine(in)
Catalysed by BAAT, GATM, SLC25A2cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes
- bile acid-CoA:amino acid N-acyltransferase (taurodeoxycholate)
- taurine + L-arginine = taurocyamine + L-ornithine
- D-arginine(in) + L-ornithine(out) = D-arginine(out) + L-ornithine(in)
Catalysed by BAAT, GATM, SLC25A2cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes
- ATP citrate lyase (citrate)
- transport of malate and OAA (cytosol to mitochondria)
- Mitochondrial Carrier (Mc) Tcdb:2.A.29.7.2
Catalysed by ACLY, SLC25A1cytosol, mitochondrial matrixOne of 8 routes
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- 3-oxopropanoate + L-alanine = beta-alanine + pyruvate
Catalysed by AGXT2mitochondrial matrixOne of 2 routes
- ATP citrate lyase (citrate)
- transport of malate and OAA (cytosol to mitochondria)
- transport of malate and thiosulfate (cytosol to mitochondria)
Catalysed by ACLY, SLC25A10cytosol, mitochondrial matrixOne of 6 routes
- N-acetylglutamate synthase (N-acetyl-L-cysteine)
- De novo synthesis of 2Fe2S
- Synthesis of 4Fe4S from 2Fe2S
Catalysed by NAGS, NDUFAB1, FDXR, FXN and 10 moremitochondrial matrix
- long-chain-fatty-acid-CoA ligase (stearate)
- octadecanoyl-CoA + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = (9Z)-octadecenoyl-CoA + 2 Fe(III)-[cytochrome b5] + 2 H2O
- 1-O-hexadecyl-sn-glycero-3-phosphocholine + (9Z)-octadecenoyl-CoA = 1-O-hexadecyl-2-(9Z)-octadecenoyl-sn-glycero-3-phosphocholine + CoA
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 6 morecytosolOne of 2 routes
- acyl-CoA:sphingosine N-acyltransferase
- 1-O-hexadecyl-2-acetyl-sn-glycero-3-phosphocholine + sphing-4-enine = 1-O-hexadecyl-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine + H(+)
- 1-O-hexadecyl-sn-glycero-3-phosphocholine + H2O = 1-O-hexadecyl-sn-glycerol + phosphocholine + H(+)
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus
- N-acetyl-LTE4 to leukotriene E4 conversion
- transport of GSH and leukotriene E4 (cytosol to extracellular)
- transport of GSH and serotonin (cytosol to extracellular)
Catalysed by ZDHHC11B, NAA10, ESCO2, ESCO1 and 31 morecytosol, extracellular spaceOne of 5 routes
- glycine N-acyltransferase (N-arachidonoylglycine)
- transport of glycine and isoleucine (cytosol to extracellular)
- L-isoleucine + 2-oxoglutarate = (S)-3-methyl-2-oxopentanoate + L-glutamate
Catalysed by GLYAT, GLYATL2, GLYATL1, SLC7A5 and 2 moremitochondrial matrix, extracellular space, cytosol
- acyl-CoA:sphingosine N-acyltransferase
- a 2-acylglycerol + an acyl-CoA = a 1,2-diacylglycerol + CoA
- a 1,2-diacylglycerol + H2O = a 1-acylglycerol + a fatty acid + H(+)
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 6 moreGolgi apparatusOne of 2 routes
- acyl-CoA:sphingosine N-acyltransferase
- a 2-acyl-sn-glycero-3-phosphocholine + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phosphocholine + CoA
- a sterol + a 1,2-diacyl-sn-glycero-3-phosphocholine = a sterol ester + a 1-acyl-sn-glycero-3-phosphocholine
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus
- glycine N-acyltransferase (N-arachidonoylglycine)
- transport of glycine and isoleucine (cytosol to extracellular)
- L-Leucine:2-oxoglutarate aminotransferase
Catalysed by GLYAT, GLYATL2, GLYATL1, SLC7A5 and 1 moremitochondrial matrix, extracellular space, cytosolOne of 2 routes
- long-chain-fatty-acid-CoA ligase (lauric acid)
- Lauroyl-CoA hydrolase
- alkane 1-monooxygenase (lauric acid)
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 10 morecytosolOne of 2 routes
- glycine N-acyltransferase (N-arachidonoylglycine)
- transport of glycine and tyrosine (cytosol to extracellular)
- L-tyrosine:2-oxoglutarate aminotransferase
Catalysed by GLYAT, GLYATL2, GLYATL1, SLC7A5 and 3 moremitochondrial matrix, extracellular space, cytosolOne of 7 routes
- amino-acid N-acetyltransferase (N-acetyl-L-alanine)
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
- 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)
Catalysed by KYNUmitochondrial matrix
- Propanoate:CoA ligase (AMP-forming)
- Propanoyl-CoA hydrolase
- transport of L-lactate and propanoate (cytosol to extracellular)
Catalysed by ACSS3, ACSS2, ACSS1, ACOT7 and 6 morecytosol, extracellular spaceOne of 9 routes
- acyl-CoA:sphingosine N-acyltransferase
- 1-O-hexadecyl-2-acetyl-sn-glycero-3-phosphocholine + sphing-4-enine = 1-O-hexadecyl-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine + H(+)
- 1-O-hexadecyl-sn-glycero-3-phosphocholine + acetyl-CoA = 1-O-hexadecyl-2-acetyl-sn-glycero-3-phosphocholine + CoA
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 3 moreGolgi apparatus
- Palmitoyl-CoA:retinol O-acyltransferase
- 11-cis-retinol = 13-cis-retinol
- retinol dehydrogenase (13-cis-retinal)
Catalysed by DGAT1, LRAT, AWAT1, AWAT2 and 3 morecytosolOne of 3 routes
- glycine N-acyltransferase (N-arachidonoylglycine)
- gamma-L-glutamyl-L-cysteine + glycine + ATP = glutathione + ADP + phosphate + H(+)
- tert-butyl hydroperoxide + 2 glutathione = tert-butanol + glutathione disulfide + H2O
Catalysed by GLYAT, GLYATL2, GLYATL1, GSS and 5 moremitochondrial matrix
Catalysed by SLC27A2, ACOT2, ALDH3A2cytosol, peroxisomeOne of 2 routes
- long-chain-fatty-acid-CoA ligase (stearate)
- octadecanoyl-CoA + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = (9Z)-octadecenoyl-CoA + 2 Fe(III)-[cytochrome b5] + 2 H2O
- 1-(9Z-octadecenoyl)-glycerol + (9Z)-octadecenoyl-CoA = 1,2-di-(9Z-octadecenoyl)-glycerol + CoA
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 11 morecytosolOne of 2 routes
- Carnitine O-Palmitoyltransferase
- Utilized Transport
- fatty acid amide hydrolase (2-arachidonoylglycerol)
Catalysed by CPT1A, CPT1C, CPT1B, FAAHcytosol, endoplasmic reticulum
- N-acetyl-LTE4 to leukotriene E4 conversion
- transport of GSH and leukotriene E4 (cytosol to extracellular)
- transport of GSH and triiodothyronine (cytosol to extracellular)
Catalysed by ZDHHC11B, NAA10, ESCO2, ESCO1 and 31 morecytosol, extracellular spaceOne of 5 routes
- Carnitine O-Palmitoyltransferase
- Utilized Transport
- 1,2-di-(9Z-octadecenoyl)-glycerol + (9Z)-octadecenoate + H(+) = 1,2,3-tri-(9Z-octadecenoyl)-glycerol + H2O
Catalysed by CPT1A, CPT1C, CPT1B, DGAT1 and 4 morecytosol, endoplasmic reticulumOne of 4 routes
- Carnitine O-Palmitoyltransferase
- Utilized Transport
- Fatty Acid Omega Oxidation (C16->W-Ohc16), Endoplasmatic Reticulum
Catalysed by CPT1A, CPT1C, CPT1B, CYP4F2 and 1 morecytosol, endoplasmic reticulumOne of 2 routes
- long-chain-fatty-acid-CoA ligase (dihomo-gamma-linolenate)
- (8Z,11Z,14Z)-eicosatrienoyl-CoA + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = (5Z,8Z,11Z,14Z)-eicosatetraenoyl-CoA + 2 Fe(III)-[cytochrome b5] + 2 H2O
- 1-O-hexadecyl-sn-glycero-3-phosphocholine + (5Z,8Z,11Z,14Z)-eicosatetraenoyl-CoA = 1-O-hexadecyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine + CoA
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 6 morecytosolOne of 3 routes
- a 6-(N-acetyl-alpha-D-glucosaminyl)-1-(1,2-diacyl-sn-glycero-3-phospho)-1D-myo-inositolReach from here →
- acyl-CoA:sphingosine N-acyltransferase
- a 1-acyl-sn-glycero-3-phospho-(1D-myo-inositol) + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol) + CoA
- a 1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol) + UDP-N-acetyl-alpha-D-glucosamine = a 6-(N-acetyl-alpha-D-glucosaminyl)-1-(1,2-diacyl-sn-glycero-3-phospho)-1D-myo-inositol + UDP + H(+)
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 3 moreGolgi apparatus
- Butanoate:CoA ligase (AMP-forming)
- butanoyl-CoA:electron-transfer flavoprotein 2,3-oxidoreductase
- (S)-3-hydroxybutanoyl-CoA hydro-lyase
Catalysed by ACSM4, ACSM1, ACSM2A, ACSM3 and 5 morecytosol, mitochondrial matrixOne of 2 routes
- ATP citrate lyase (citrate)
- transport of malate and OAA (cytosol to mitochondria)
- (S)-malate + ATP + CoA = (S)-malyl-CoA + ADP + phosphate
Catalysed by ACLY, SUCLG1, SUCLA2cytosol, mitochondrial matrix