an N-acylsphing-4-enine

Three steps

• 1-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphateReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA:sn-glycerol-3-phosphate 1-O-acyltransferase
  3. 1-acylglycerol-3-phosphate pool formation and breakdown

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 4 moreGolgi apparatus, mitochondrial matrix, cytosolOne of 2 routes

• 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosolOne of 2 routes

• 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine + octadecanoyl-CoA = 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-(9Z)-octadecenoyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphoethanolamineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + (9Z,12Z)-octadecadienoyl-CoA = 1-(9Z)-octadecenoyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphoethanolamine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-hexadecanoyl-2-dodecanoyl-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. dodecanoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-dodecanoyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosolOne of 2 routes

• 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho-L-serineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1-hexadecanoyl-sn-glycero-3-phospho-L-serine + (9Z,12Z)-octadecadienoyl-CoA = 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho-L-serine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + octadecanoyl-CoA = 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-octadecanoyl-sn-glycero-3-phosphoethanolamineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-octadecanoyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphoethanolamine + 1-O-hexadecyl-sn-glycero-3-phosphocholine = 1-octadecanoyl-sn-glycero-3-phosphoethanolamine + 1-O-hexadecyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 2 routes

• 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + octadecanoyl-CoA = 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-acyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho-L-serineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. a 1-acyl-sn-glycero-3-phospho-L-serine + (9Z,12Z)-octadecadienoyl-CoA = 1-acyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho-L-serine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-acyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphoethanolamineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. a 1-acyl-sn-glycero-3-phosphoethanolamine + (9Z,12Z)-octadecadienoyl-CoA = 1-acyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphoethanolamine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-(9Z)-octadecenoyl-2-dodecanoyl-sn-glycero-3-phosphateReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + dodecanoyl-CoA = 1-(9Z)-octadecenoyl-2-dodecanoyl-sn-glycero-3-phosphate + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-(9Z)-octadecenoyl-2-nonadecanoyl-sn-glycero-3-phosphateReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. nonadecanoyl-CoA + 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate = 1-(9Z)-octadecenoyl-2-nonadecanoyl-sn-glycero-3-phosphate + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 3 moreGolgi apparatus, cytosol

• (11Z)-octadecenoyl-CoAReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA:sn-glycerol-3-phosphate 1-O-acyltransferase
  3. Transport of 11-Octadecenoyl Carnitine into the Mitochondrial Matrix

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 7 moreGolgi apparatus, mitochondrial matrix, cytosolOne of 4 routes

• 1-hexadecanoyl-2-dodecanoyl-sn-glycero-3-phospho-(1D-myo-inositol)Reach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1-hexadecanoyl-sn-glycero-3-phospho-(1D-myo-inositol) + dodecanoyl-CoA = 1-hexadecanoyl-2-dodecanoyl-sn-glycero-3-phospho-(1D-myo-inositol) + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1'-[1-acyl-2-dodecanoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1',3'-bis-[1-acyl-sn-glycero-3-phospho]-glycerol + dodecanoyl-CoA = 1'-[1-acyl-2-dodecanoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl,2-dodecanoyl-sn-glycero-3-phospho]-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl-sn-glycero-3-phospho]-glycerol + dodecanoyl-CoA = 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl,2-dodecanoyl-sn-glycero-3-phospho]-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl,2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phospho]-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl-sn-glycero-3-phospho]-glycerol + (9Z,12Z)-octadecadienoyl-CoA = 1'-[1,2-diacyl-sn-glycero-3-phospho],3'-[1-acyl,2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phospho]-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1'-[1-acyl-2-octadecanoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1',3'-bis-[1-acyl-sn-glycero-3-phospho]-glycerol + octadecanoyl-CoA = 1'-[1-acyl-2-octadecanoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1'-[1-acyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 1',3'-bis-[1-acyl-sn-glycero-3-phospho]-glycerol + (9Z,12Z)-octadecadienoyl-CoA = 1'-[1-acyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phospho],3'-[1-acyl,2-hydroxy-sn-glycero-3-phospho]-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-hexadecanoyl-2-acetyl-sn-glycero-3-phosphocholineReach from here →
  1. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  2. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine
  3. 1-hexadecanoyl-sn-glycero-3-phosphocholine + acetyl-CoA = 1-hexadecanoyl-2-acetyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by GBA1, GBA2, LCAT, LPCAT2 and 1 moreOne of 2 routes

• (12R)-hydroperoxy-(5Z,8Z,10E,14Z)-eicosatetraenoateReach from here →
  1. N-Acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = (12R)-hydroperoxy-(5Z,8Z,10E,14Z)-eicosatetraenoate

  Catalysed by ASAH1, ALOX12Blysosome, extracellular space

• 1-acyl-2-octadecanoyl-sn-glycero-3-phosphoethanolamineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. a 1-acyl-sn-glycero-3-phosphoethanolamine + octadecanoyl-CoA = 1-acyl-2-octadecanoyl-sn-glycero-3-phosphoethanolamine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosol

• 1-hexadecanoyl-2-decanoyl-sn-glycero-3-phosphocholineReach from here →
  1. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  2. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine
  3. decanoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-decanoyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by GBA1, GBA2, LCAT, LPCAT1

• 1-hexadecanoyl-2-hexanoyl-sn-glycero-3-phosphocholineReach from here →
  1. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  2. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine
  3. hexanoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-hexanoyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by GBA1, GBA2, LCAT, LPCAT1

• 1-hexadecanoyl-2-octanoyl-sn-glycero-3-phosphocholineReach from here →
  1. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  2. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine
  3. octanoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-octanoyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by GBA1, GBA2, LCAT, LPCAT1

• 1-hexadecanoyl-2-tetradecanoyl-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. tetradecanoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-hexadecanoyl-2-tetradecanoyl-sn-glycero-3-phosphocholine + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moreGolgi apparatus, cytosolOne of 2 routes

• (8S)-hydroperoxy-(5Z,9E,11Z,14Z)-eicosatetraenoateReach from here →
  1. N-Acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. Arachidonate:oxygen 8-oxidoreductase

  Catalysed by ASAH1, ALOX12lysosome, extracellular space, cytosolOne of 2 routes

• 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycerolReach from here →
  1. N-Acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycerol + H2O = 2-(9Z-octadecenoyl)-glycerol + octadecanoate + H(+)

  Catalysed by ASAH1, ABHD11lysosome, extracellular space

• 1-hexadecanoyl-sn-glycerolReach from here →
  1. a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + cholesterol = cholesteryl 3-beta-D-glucoside + an N-acylsphing-4-enine
  2. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + cholesterol = cholesteryl (5Z,8Z,11Z,14Z)-eicosatetraenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine
  3. 1-hexadecanoyl-sn-glycero-3-phosphocholine + H2O = 1-hexadecanoyl-sn-glycerol + phosphocholine + H(+)

  Catalysed by GBA1, GBA2, LCAT, SMPD2 and 3 more

• 1-dodecanoyl-2-(9Z-octadecenoyl)-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-glycerol + dodecanoyl-CoA = 1-dodecanoyl-2-(9Z-octadecenoyl)-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• 1-tetradecanoyl-2-(9Z-octadecenoyl)-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-glycerol + tetradecanoyl-CoA = 1-tetradecanoyl-2-(9Z-octadecenoyl)-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• 1-octadecanoyl-2-(9Z-octadecenoyl)-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-glycerol + octadecanoyl-CoA = 1-octadecanoyl-2-(9Z-octadecenoyl)-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• 1-(9Z,12Z-octadecadienoyl)-2-(9Z-octadecenoyl)-glycerolReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. 2-(9Z-octadecenoyl)-glycerol + (9Z,12Z)-octadecadienoyl-CoA = 1-(9Z,12Z-octadecadienoyl)-2-(9Z-octadecenoyl)-glycerol + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• eicosan-1-olReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. eicosanoyl-CoA + 2 NADPH + 2 H(+) = eicosan-1-ol + 2 NADP(+) + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• hexadecyl (9Z)-hexadecenoateReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. hexadecan-1-ol + (9Z)-hexadecenoyl-CoA = hexadecyl (9Z)-hexadecenoate + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• hexadecyl octadecanoateReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. acyl-CoA pool formation and breakdown
  3. hexadecan-1-ol + octadecanoyl-CoA = hexadecyl octadecanoate + CoA

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus, cytosol

• 2-O-(5Z,8Z,11Z,14Z)-eicosatetraenylglycerolReach from here →
  1. N-Acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. fatty acid amide hydrolase (arachidonate)

  Catalysed by ASAH1, FAAHlysosome, extracellular space, cytosol

• (R)-2-hydroxytetracosanoateReach from here →
  1. N-Acylsphingosine amidohydrolase
  2. (10Z)-heptadecenoic acid formation
  3. tetracosanoate + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = (R)-2-hydroxytetracosanoate + 2 Fe(III)-[cytochrome b5] + H2O

  Catalysed by ASAH1, FA2Hlysosome, extracellular space

• 1-(9Z-octadecenoyl)-N-(acetyl)-sphing-4-enineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-(9Z-octadecenoyl)-N-(acetyl)-sphing-4-enine + 1-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 8 routes

• 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-hexadecanoyl-N-(acetyl)-sphing-4-enine + 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 2 routes

• 1-octadecanoyl-N-(acetyl)-sphing-4-enineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-octadecanoyl-N-(acetyl)-sphing-4-enine + 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 5 routes

• 2-octadecanoyl-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-(9Z)-octadecenoyl-2-octadecanoyl-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 2-octadecanoyl-sn-glycero-3-phosphocholine + 1-(9Z-octadecenoyl)-N-(acetyl)-sphing-4-enine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus

• 1-hexadecanoyl-N-(acetyl)-sphing-4-enineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-hexadecanoyl-N-(acetyl)-sphing-4-enine + 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 9 routes

• 2-hexadecanoyl-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-(9Z-octadecenoyl)-2-hexadecanoyl-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-(9Z-octadecenoyl)-N-(acetyl)-sphing-4-enine + 2-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 7 routes

• 2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-hexadecanoyl-N-(acetyl)-sphing-4-enine + 2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 2 routes

• 1-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-N-(acetyl)-sphing-4-enineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-N-(acetyl)-sphing-4-enine + 1-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 3 routes

• 2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + 1-hexadecanoyl-N-(acetyl)-sphing-4-enine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 2 routes

• 2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine + 1-hexadecanoyl-N-(acetyl)-sphing-4-enine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatus

• 1-(9Z,12Z-octadecadienoyl)-N-acetylsphing-4-enineReach from here →
  1. acyl-CoA:sphingosine N-acyltransferase
  2. 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(+)
  3. 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-(9Z,12Z-octadecadienoyl)-N-acetylsphing-4-enine + 1-hexadecanoyl-sn-glycero-3-phosphocholine

  Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moreGolgi apparatusOne of 3 routes