Purification, partial characterization and immunolocalization of a proteophosphoglycan secreted by Leishmania mexicana amastigotes.
T Ilg, YD Stierhof, MJ McConville, P Overath
Eur J Cell Biol | Published : 1995
The intracellular amastigote form of the parasitic protozoon Leishmania mexicana expresses a high-molecular weight phosphoglycan, which is antigenically related to the surface glycolipid lipophosphoglycan and the secreted enzyme acid phosphatase of Leishmania promastigotes. This antigen was purified from a cell-free homogenate of infected mouse tissue and from amastigotes. Compositional and immunological analysis of the purified components indicate a proteophosphoglycan structure consisting of serine-rich polypeptide chains and mild acid-labile phosphooligosaccharides capped by mannooligosaccharides. Immunofluorescence and immunoelectron microscopy of parasitized mouse peritoneal macrophages..View full abstract