MSI_000027842

Unreliable

排名分数: 2.03
参考来源: Mus musculus (UBERON:0002048: lung)

M/z: 726.529
Mass Window: 726.529 ~ 726.529 (none)

参考注释

PG(a-13:0/i-18:0)_[M+NH4]+ (BioDeep_00000108998)
[(2R)-1-[[(2S)-2,3-dihydroxypropoxy]-hydroxyphosphoryl]oxy-3-(10-methyldodecanoyloxy)propan-2-yl] 16-methylheptadecanoate

Formula: C37H73O10P (708.4941087999999)
SMILES: [H][C@](O)(CO)COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCCCC(C)CC)OC(=O)CCCCCCCCCCCCCCC(C)C

PG(a-13:0/i-18:0) 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-18:0), in particular, consists of one chain of anteisotridecanoic acid at the C-1 position and one chain of isooctadecanoic 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.