Molecule Identification Common Name PA(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) Definition PA(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) is a phosphatidic acid. It is a glycerophospholipid in which a phosphate moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidic acids can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PA(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)), in particular, consists of one chain of stearic acid at the C-1 position and one chain of docosahexaenoic acid at the C-2 position. Phosphatidic acids are quite rare but are extremely important as intermediates in the biosynthesis of triacylglycerols and phospholipids. Structure [H][C@@](COC(=O)CCCCCCCCCCCCCCCCC)(COP(O)(O)=O)OC(=O)CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CC InChI=1S/C43H73O8P/c1-3-5-7-9-11-13-15-17-19-20-21-22-24-26-28-30-32-34-36-38-43(45)51-41(40-50-52(46,47)48)39-49-42(44)37-35-33-31-29-27-25-23-18-16-14-12-10-8-6-4-2/h5,7,11,13,17,19,21-22,26,28,32,34,41H,3-4,6,8-10,12,14-16,18,20,23-25,27,29-31,33,35-40H2,1-2H3,(H2,46,47,48)/b7-5-,13-11-,19-17-,22-21-,28-26-,34-32-/t41-/m1/s1 Synonyms Value Source (2R)-1-(Phosphonooxy)-3-(stearoyloxy)propan-2-yl (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate ChEBI 1-Octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl-sn-glycero-3-phosphate ChEBI 1-Octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphate ChEBI PA(18:0/22:6) ChEBI (2R)-1-(Phosphonooxy)-3-(stearoyloxy)propan-2-yl (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoic acid Generator 1-Octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl-sn-glycero-3-phosphoric acid Generator 1-Octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphoric acid Generator 1-Stearoyl-2-docosahexaenoyl-sn-glycero-3-phosphate HMDB 1-Stearoyl-2-docosahexaenoyl-sn-phosphatidic acid HMDB PA(18:0/22:6N3) HMDB PA(18:0/22:6W3) HMDB PA(40:6) HMDB Phosphatidic acid(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) HMDB Phosphatidic acid(18:0/22:6) HMDB Phosphatidic acid(18:0/22:6n3) HMDB Phosphatidic acid(18:0/22:6W3) HMDB Phosphatidic acid(40:6) HMDB Phosphatidate(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) HMDB Phosphatidate(18:0/22:6) HMDB Phosphatidate(18:0/22:6N3) HMDB Phosphatidate(18:0/22:6W3) HMDB Phosphatidate(40:6) HMDB 1-stearoyl-2-docosahexaenoyl-sn-glycero-3-phosphate SMPDB, HMDB 1-stearoyl-2-docosahexaenoyl-sn-phosphatidic acid SMPDB, HMDB PA(18:0/22:6) SMPDB, ChEBI PA(18:0/22:6n3) SMPDB, HMDB PA(18:0/22:6w3) SMPDB, HMDB PA(40:6) SMPDB, HMDB Phosphatidic acid(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) SMPDB, HMDB Phosphatidic acid(18:0/22:6) SMPDB, HMDB Phosphatidic acid(18:0/22:6n3) SMPDB, HMDB Phosphatidic acid(18:0/22:6w3) SMPDB, HMDB Phosphatidic acid(40:6) SMPDB, HMDB Phosphatidate(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) SMPDB, HMDB Phosphatidate(18:0/22:6) SMPDB, HMDB Phosphatidate(18:0/22:6n3) SMPDB, HMDB Phosphatidate(18:0/22:6w3) SMPDB, HMDB PA(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) SMPDB
Chemical Formula C43 H73 O8 P Average Molecular Weight 749.023 Monoisotopic Molecular Weight 748.504306309 IUPAC Name [(2R)-2-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoyloxy]-3-(octadecanoyloxy)propoxy]phosphonic acid Traditional Name (2R)-2-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoyloxy]-3-(octadecanoyloxy)propoxyphosphonic acid CAS Registry Number Not Available SMILES [H][C@@](COC(=O)CCCCCCCCCCCCCCCCC)(COP(O)(O)=O)OC(=O)CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CC
InChI Identifier InChI=1S/C43H73O8P/c1-3-5-7-9-11-13-15-17-19-20-21-22-24-26-28-30-32-34-36-38-43(45)51-41(40-50-52(46,47)48)39-49-42(44)37-35-33-31-29-27-25-23-18-16-14-12-10-8-6-4-2/h5,7,11,13,17,19,21-22,26,28,32,34,41H,3-4,6,8-10,12,14-16,18,20,23-25,27,29-31,33,35-40H2,1-2H3,(H2,46,47,48)/b7-5-,13-11-,19-17-,22-21-,28-26-,34-32-/t41-/m1/s1
InChI Key SFHGEOGVGJYLEK-USQBYQOHSA-N Functional Ontology Physiological effect Not Available Disposition Process Naturally occurring process Biological process Biochemical pathway Metabolic pathway De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/24:0)  (PathBank: SMP0066092 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:1(9Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069839 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z)/18:1(11Z))  (PathBank: SMP0069842 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069848 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069851 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(5Z,8Z,11Z,14Z)/18:0)  (PathBank: SMP0069852 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069861 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:1(9Z))  (PathBank: SMP0069864 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z))  (PathBank: SMP0069868 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z))  (PathBank: SMP0069870 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:1(9Z)/16:1(9Z))  (PathBank: SMP0078578 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z)/18:1(9Z))  (PathBank: SMP0078584 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z)/18:0)  (PathBank: SMP0078586 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(5Z,8Z,11Z,14Z)/20:4(5Z,8Z,11Z,14Z))  (PathBank: SMP0078594 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(5Z,8Z,11Z,14Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078595 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078599 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(5Z,8Z,11Z,14Z))  (PathBank: SMP0078610 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078612 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z)/18:1(11Z))  (PathBank: SMP0093859 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z)/18:1(9Z))  (PathBank: SMP0093860 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z)/18:2(9Z,12Z))  (PathBank: SMP0093863 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z)/22:5(4Z,7Z,10Z,13Z,16Z))  (PathBank: SMP0093869 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z))  (PathBank: SMP0093873 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/24:1(15Z))  (PathBank: SMP0066093 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:1(9Z)/18:0)  (PathBank: SMP0069838 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)/18:0)  (PathBank: SMP0069859 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069862 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:0)  (PathBank: SMP0069863 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z))  (PathBank: SMP0069866 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z)/18:0)  (PathBank: SMP0078582 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078585 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z)/18:0)  (PathBank: SMP0078590 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z)/22:5(7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078598 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z))  (PathBank: SMP0078608 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0078613 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0090112 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0069840 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z)/18:0)  (PathBank: SMP0069855 )Cardiolipin Biosynthesis CL(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:0)  (PathBank: SMP0069865 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:0)  (PathBank: SMP0018839 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:0)  (PathBank: SMP0018840 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:0)  (PathBank: SMP0018841 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/14:1(9Z))  (PathBank: SMP0018843 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/16:1(9Z))  (PathBank: SMP0018844 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(11Z))  (PathBank: SMP0018845 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z))  (PathBank: SMP0018846 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:1(11Z))  (PathBank: SMP0018847 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:3(5Z,8Z,11Z))  (PathBank: SMP0018848 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:1(13Z))  (PathBank: SMP0018849 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z))  (PathBank: SMP0018851 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:3(6Z,9Z,12Z))  (PathBank: SMP0018852 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(5Z,8Z,11Z,14Z))  (PathBank: SMP0018853 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:2(13Z,16Z))  (PathBank: SMP0018854 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:4(7Z,10Z,13Z,16Z))  (PathBank: SMP0018855 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(4Z,7Z,10Z,13Z,16Z))  (PathBank: SMP0018856 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:3(9Z,12Z,15Z))  (PathBank: SMP0018857 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:4(6Z,9Z,12Z,15Z))  (PathBank: SMP0018858 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:4(8Z,11Z,14Z,17Z))  (PathBank: SMP0018859 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:5(5Z,8Z,11Z,14Z,17Z))  (PathBank: SMP0018860 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z))  (PathBank: SMP0018861 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:2(11Z,14Z))  (PathBank: SMP0033033 )De Novo Triacylglycerol Biosynthesis TG(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/20:3(8Z,11Z,14Z))  (PathBank: SMP0033034 )Role Not Available