an N-acylsphinganine

Three steps

• (15R)-hydroxy-(5Z,8Z,11Z,13E)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + AH2 + O2 = (15R)-hydroxy-(5Z,8Z,11Z,13E)-eicosatetraenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular spaceOne of 2 routes

• hexadecanoateReach from here →
  1. an N-acylsphinganine + H2O = sphinganine + a fatty acid
  2. sphinganine + hexadecanoyl-CoA = N-hexadecanoylsphinganine + CoA + H(+)
  3. sphinganine + hexadecanoate = N-hexadecanoylsphinganine + H2O

  Catalysed by ACER2, ACER1, ACER3, CERS6 and 3 more

• (15R)-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = (15R)-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoate

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 11R-hydroperoxy-(5Z,8Z,12E,14Z)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. Arachidonate: oxygen 11-oxidoreductase

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular spaceOne of 2 routes

• prostaglandin G2Reach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. Arachidonate:oxygen oxidoreductase

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 3 morecytosol, extracellular space, endoplasmic reticulumOne of 2 routes

• cholesteryl octadecanoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. octadecanoyl-CoA + cholesterol = cholesteryl octadecanoate + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoyl-CoA + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 2 morecytosolOne of 2 routes

• 14-hydroperoxy-(4Z,7Z,10Z,12E,16Z,19Z)-docosahexaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate + O2 = 14-hydroperoxy-(4Z,7Z,10Z,12E,16Z,19Z)-docosahexaenoate

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (12R)-hydroxy-(5Z,8Z,10E,14Z)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + reduced [NADPH--hemoprotein reductase] + O2 = (12R)-hydroxy-(5Z,8Z,10E,14Z)-eicosatetraenoate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• sphinga-4E,14Z-dienineReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. acyl-CoA:sphingosine N-acyltransferase
  3. sphing-4-enine + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = sphinga-4E,14Z-dienine + 2 Fe(III)-[cytochrome b5] + 2 H2O

  Catalysed by DEGS1, DEGS2, ASAH1, ACER2 and 3 morecytosol, Golgi apparatus

• beta-D-glucosyl-(1<->1)-sphing-4-enineReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. an N-acylsphing-4-enine + UDP-alpha-D-glucose = a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + UDP + H(+)
  3. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + H2O = beta-D-glucosyl-(1<->1)-sphing-4-enine + a fatty acid

  Catalysed by DEGS1, DEGS2, UGCG, ASAH1cytosol

• 14,15-epoxy-(5Z,8Z,11Z)-eicosatrienoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. unspecific monooxygenase (arachidonate)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 28 morecytosol, extracellular spaceOne of 4 routes

• 8,9-epoxy-(5Z,11Z,14Z)-eicosatrienoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. unspecific monooxygenase (arachidonate)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 27 morecytosol, extracellular spaceOne of 3 routes

• tetradecanalReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. tetradecanal + NAD(+) + H2O = tetradecanoate + NADH + 2 H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• cholesteryl (9Z)-hexadecenoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. (9Z)-hexadecenoyl-CoA + cholesterol = cholesteryl (9Z)-hexadecenoate + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• (9Z,12Z,15Z-octadecatrienoyl)-cholesterolReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. (9Z,12Z,15Z)-octadecatrienoyl-CoA + cholesterol = (9Z,12Z,15Z-octadecatrienoyl)-cholesterol + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosolOne of 2 routes

• cholesteryl (8Z,11Z,14Z)-eicosatrienoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. 1-hexadecanoyl-2-(8Z,11Z,14Z-eicosatrienoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (8Z,11Z,14Z)-eicosatrienoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphoserineReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphoserine + H2O = 1-heptadecanoyl-sn-glycero-3-phosphoserine + (5Z,8Z,11Z,14Z)-eicosatetraenoate + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• a monoacyl-sn-glycero-3-phosphocholineReach from here →
  1. an N-acylsphinganine + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine = an N-acylsphinganine-1-phosphoethanolamine + a 1,2-diacyl-sn-glycerol
  2. an N-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = a sphingomyelin + a 1,2-diacyl-sn-glycerol
  3. a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a monoacyl-sn-glycero-3-phosphocholine + a fatty acid + H(+)

  Catalysed by SGMS2, SAMD8, SGMS1, PNLIPRP2

• 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + H2O = 1-heptadecanoyl-sn-glycero-3-phosphocholine + (5Z,8Z,11Z,14Z)-eicosatetraenoate + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 2-(acylamino)ethyl fatty acidReach from here →
  1. an N-acylsphinganine + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine = an N-acylsphinganine-1-phosphoethanolamine + a 1,2-diacyl-sn-glycerol
  2. an N-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = a sphingomyelin + a 1,2-diacyl-sn-glycerol
  3. an N-acylethanolamine + a 1,2-diacyl-sn-glycero-3-phosphocholine = 2-(acylamino)ethyl fatty acid + a 2-acyl-sn-glycero-3-phosphocholine

  Catalysed by SGMS2, SAMD8, SGMS1, PLA2G15One of 2 routes

• 1-O-acyl-N-(acetyl)-sphing-4-enineReach from here →
  1. an N-acylsphinganine + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine = an N-acylsphinganine-1-phosphoethanolamine + a 1,2-diacyl-sn-glycerol
  2. an N-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = a sphingomyelin + a 1,2-diacyl-sn-glycerol
  3. N-(acetyl)-sphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = 1-O-acyl-N-(acetyl)-sphing-4-enine + a 1-acyl-sn-glycero-3-phosphocholine

  Catalysed by SGMS2, SAMD8, SGMS1, PLA2G15One of 4 routes

• 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphoethanolamineReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. 1-heptadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphoethanolamine + H2O = 1-heptadecanoyl-sn-glycero-3-phosphoethanolamine + (5Z,8Z,11Z,14Z)-eicosatetraenoate + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (5Z)-tetradecenoyl-CoAReach from here →
  1. N-acylsphingosine amidohydrolase
  2. sphingosine N-acyltransferase (sphinganine)
  3. long-chain-fatty-acid-CoA ligase (physeteric acid)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 15 morecytosolOne of 9 routes

• 1,2-diacyl-sn-glycero-3-phosphoethanolReach from here →
  1. an N-acylsphinganine + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine = an N-acylsphinganine-1-phosphoethanolamine + a 1,2-diacyl-sn-glycerol
  2. an N-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = a sphingomyelin + a 1,2-diacyl-sn-glycerol
  3. ethanol + a 1,2-diacyl-sn-glycero-3-phosphocholine = 1,2-diacyl-sn-glycero-3-phosphoethanol + choline

  Catalysed by SGMS2, SAMD8, SGMS1, PLD1

• (3E)-decenoyl-CoAReach from here →
  1. N-acylsphingosine amidohydrolase
  2. sphingosine N-acyltransferase (sphinganine)
  3. Fatty Acid Beta Oxidation (C12:1->C10:1), Mitochondrial

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 11 morecytosol, mitochondrial matrix

• 7-hydroxydodecanoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. dodecanoate + reduced [NADPH--hemoprotein reductase] + O2 = 7-hydroxydodecanoate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (5Z,8Z,11Z,14Z,17Z-eicosapentaenoyl)-cholesterolReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoyl-CoA + cholesterol = (5Z,8Z,11Z,14Z,17Z-eicosapentaenoyl)-cholesterol + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosolOne of 2 routes

• 4beta-hydroxycholesterolReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. cholesterol + reduced [NADPH--hemoprotein reductase] + O2 = 4beta-hydroxycholesterol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• (2R,6)-dimethylheptanoyl-CoAReach from here →
  1. N-acylsphingosine amidohydrolase
  2. sphingosine N-acyltransferase (sphinganine)
  3. acetyl-CoA C-acyltransferase (3-oxo-4(R),8-dimethyl-nonanoyl-CoA)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 10 morecytosol, mitochondrial matrix

• an N(2)-acyl-L-glutamineReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. acyl-CoA:sphingosine N-acyltransferase
  3. an acyl-CoA + L-glutamine = an N(2)-acyl-L-glutamine + CoA + H(+)

  Catalysed by DEGS1, DEGS2, ASAH1, ACER2 and 4 morecytosol, Golgi apparatus

• (7Z)-hexadecenoyl-CoAReach from here →
  1. N-acylsphingosine amidohydrolase
  2. sphingosine N-acyltransferase (sphinganine)
  3. long-chain-fatty-acid-CoA ligase (7-palmitoleic acid)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 15 morecytosolOne of 9 routes

• cholesteryl (5Z,8Z,11Z)-eicosatrienoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. 1-hexadecanoyl-2-(5Z,8Z,11Z-eicosatrienoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z)-eicosatrienoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• (6Z,9Z,12Z-octadecatrienoyl)-cholesterolReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. 1-hexadecanoyl-2-(6Z,9Z,12Z-octadecatrienoyl)-sn-glycero-3-phosphocholine + cholesterol = (6Z,9Z,12Z-octadecatrienoyl)-cholesterol + 1-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• cholesteryl (11Z)-octadecenoateReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  3. (11Z)-octadecenoyl-CoA + cholesterol = cholesteryl (11Z)-octadecenoate + CoA

  Catalysed by DEGS1, DEGS2, GBA1, GBA2 and 1 morecytosol

• tricosanoyl-CoAReach from here →
  1. N-acylsphingosine amidohydrolase
  2. sphingosine N-acyltransferase (sphinganine)
  3. long-chain-fatty-acid-CoA ligase (tricosanoic acid)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 15 morecytosolOne of 7 routes

• a 3-oxoacyl-CoAReach from here →
  1. delta 4-desaturase, sphingolipid (dihydroceramide pool)
  2. acyl-CoA:sphingosine N-acyltransferase
  3. an acyl-CoA + acetyl-CoA = a 3-oxoacyl-CoA + CoA

  Catalysed by DEGS1, DEGS2, ASAH1, ACER2 and 6 morecytosol, Golgi apparatus

• (12S)-hydroperoxy-(5Z,8Z,10E,14Z,17Z)-eicosapentaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + O2 = (12S)-hydroperoxy-(5Z,8Z,10E,14Z,17Z)-eicosapentaenoate

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (18R)-hydroxy-(5Z,8Z,11Z,14Z)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + reduced [NADPH--hemoprotein reductase] + O2 = (18R)-hydroxy-(5Z,8Z,11Z,14Z)-eicosatetraenoate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 17R-hydroxy-(4Z,7Z,10Z,13Z,15E,19Z)-docosahexaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate + AH2 + O2 = 17R-hydroxy-(4Z,7Z,10Z,13Z,15E,19Z)-docosahexaenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 13-hydroxy-(4Z,7Z,10Z,14E,16Z,19Z)-docosahexaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate + AH2 + O2 = 13-hydroxy-(4Z,7Z,10Z,14E,16Z,19Z)-docosahexaenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (18R)-hydroxy-(5Z,8Z,11Z,14Z,16E)-eicosapentaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. prostaglandin-endoperoxide synthase (EPA)

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 3 morecytosol, extracellular spaceOne of 2 routes

• (15R)-hydroxy-(5Z,8Z,11Z,13E,17Z)-eicosapentaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + AH2 + O2 = (15R)-hydroxy-(5Z,8Z,11Z,13E,17Z)-eicosapentaenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• (11R)-hydroxy-(5Z,8Z,12E,14Z,17Z)-eicosapentaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + AH2 + O2 = (11R)-hydroxy-(5Z,8Z,12E,14Z,17Z)-eicosapentaenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 15-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = 15-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoate

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 5-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = 5-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoate

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space

• 13R-hydroxy-(7Z,10Z,14E,16Z,19Z)-docosapentaenoateReach from here →
  1. N-acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (7Z,10Z,13Z,16Z,19Z)-docosapentaenoate + AH2 + O2 = 13R-hydroxy-(7Z,10Z,14E,16Z,19Z)-docosapentaenoate + A + H2O

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 morecytosol, extracellular space