Lipophosphoglycan (sometimes abbreviated to
LPG) is a class of molecule found on the surface of some
eukaryotes, in particular
protozoa. A lipophosphoglycan is made up of two parts; a
lipid part and a
polysaccharide (also called
glycan) part. The two are linked by a
phosphodiester bond, hence the name lipo-phospho-glycan. The lipid part of the lipophosphoglycan is normally found embedded in the
cell membrane and the glycan part forms part of the coat of macromolecules on the cell surface.