i.e. with the remaining sn-2 acyl chain and longchain aldehydes. HCl hydrolysis of the GAPlaE results in the formation of lyso-PE, and hydrolysis of phosphatidylglycerol acetal of plasmenylethanolamine (PGAPlaE) results in the formation of lyso-PE and PG in addition to long-chain aldehydes (Johnston &Goldfine, 1988; MacDonald Goldfine, 1990).