The site of palmitoylation of the phosphatidylinositol moiety of the glycosyl-phosphatidylinositol membrane anchor of Trypanosoma brucei procyclic acidic repetitive protein was studied by using periodate oxidation. Analysis of the products by g.c.-m.s. allowed the assignment of 40 and 60% of the palmitate to the 2-position and the 3-position respectively of the myo-inositol ring.

Two forms of blood group A active glycolipids (L and II) containing oligosaccharides of 7 sugar residues have been isolated from hog stomach mucosa lipid extract (SLOMIANY, A., AND HOROWITZ, M. I. (1973) J. Biol. Chem. 248, 62326238. Partial acid hydrolysis, infrared spectroscopy, periodate oxidation, permethylation, and sequential enzymatic degradation were used to elucidate the glycolipid str...