Fatty acid diglycerides with a phosphatidyl ester attached to the terminal carbon. The terminal ester groups are mainly ethanolamine, choline, serine, or inositol. GPLs are highly amphiphilic and are normally components of cellular or vesicle membranes.
The phospholipid, Texas Red™ 1,2-dihexadecanoyl-sn-glycero-3-phosphoethanolamine, triethylammonium salt (Texas Red™ DHPE) is labeled on the head group with the bright, red-fluorescent Texas Red™ dye.
Lipidomics is a subset of metabolomics that has evolved into a class all its own. Lipidomics is the attempt to map and quantify lipid species sets within a cell or tissue to identify biomarkers and elucidate metabolism at the cellular level.