participates in lysophosphatidic acids lysobisphosphatidic acid A lysophosphatidic acid having the unusual property of a phosphodiester moiety linked to positions sn-1 and sn1' of glycerol; and two additional fatty acids esterified to the glycerol head group. BMP LBPA bis(monoacylglycerol) hydrogen phosphate BMP is a negatively charged phospholipid found almost exclusively in late endosomes/lysosomes. BMP content is higher in alveolar macrophages (18% of total phospholipids) than in other cell types. BMP is a structural isomer of phosphatidylglycerol (PG) and is synthesized through a series of acylation and deacylation steps involving a transacylase. BMP its unusual sn-1;sn-1′ structural configuration (based on the phosphate-linked glycerol carbon), which is not observed in other phospholipids. This unusual configuration is thought to play a role in the resistance of BMP to many phospholipases, and its stability in late endosomes/lysosomes. BMP stimulates the degradation of glycosphingolipids in coordination with lipid binding proteins (saposins) in lysosomes. PMID:25795792 changing membrane fluidity [Phospholipidosis]