MSI_000058409

Reliable

排名分数: 8.98
参考来源: Homo sapiens (UBERON:0001043: esophagus)

M/z: 745.5604
Mass Window: 745.56 ~ 745.5608 (3.4 ppm)

参考注释

PA(20:0/22:4(7Z,10Z,13Z,16Z))_[M+H-2H2O]+ (BioDeep_00000107441)
[(2R)-2-[(7Z,10Z,13Z,16Z)-docosa-7,10,13,16-tetraenoyloxy]-3-(icosanoyloxy)propoxy]phosphonic acid

Formula: C45H81O8P (780.5668756)
SMILES: [H][C@@](COC(=O)CCCCCCCCCCCCCCCCCCC)(COP(O)(O)=O)OC(=O)CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC

PA(20:0/22:4(7Z,10Z,13Z,16Z)) 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(20:0/22:4(7Z,10Z,13Z,16Z)), in particular, consists of one chain of arachidic acid at the C-1 position and one chain of adrenic acid at the C-2 position. Phosphatidic acids are quite rare but are extremely important as intermediates in the biosynthesis of triacylglycerols and phospholipids.