MSI_000056924

Unreliable

排名分数: 1.62
参考来源: Homo sapiens (UBERON:0007779: transudate)

M/z: 653.4336
Mass Window: 653.4336 ~ 653.4336 (none)

参考注释

PG(a-13:0/i-14:0)_[M+H]+ (BioDeep_00000108994)
[(2S)-2,3-dihydroxypropoxy][(2R)-3-[(10-methyldodecanoyl)oxy]-2-[(12-methyltridecanoyl)oxy]propoxy]phosphinic acid

Formula: C33H65O10P (652.431512)
SMILES: [H][C@](O)(CO)COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCCCC(C)CC)OC(=O)CCCCCCCCCCC(C)C

PG(a-13:0/i-14:0) is a phosphatidylglycerol - a glycerophospholipid in which a phosphoglycerol moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidylglycerols 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. PG(a-13:0/i-14:0), in particular, consists of one chain of anteisotridecanoic acid at the C-1 position and one chain of isotetradecanoic acid at the C-2 position. Phosphatidylglycerol is present at a level of 1-2\\% in most animal tissues, but it can be the second most abundant phospholipid in lung surfactant (up to 11\\% of the total). It is well established that the concentration of phosphatidylglycerol increases during fetal development. Phosphatidylglycerol may be present in animal tissues merely as a precursor for cardiolipin synthesis.