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  • Title: Structure of a triphosphonopentaosylceramide containing 4-O-methyl-N-acetylglucosamine from the skin of the sea hare, Aplysia kurodai.
    Author: Araki S, Abe S, Odani S, Ando S, Fujii N, Satake M.
    Journal: J Biol Chem; 1987 Oct 15; 262(29):14141-5. PubMed ID: 3654654.
    Abstract:
    A novel phosphonoglycosphingolipid named SGL-I containing 3 mol of 2-aminoethylphosphonate residues was isolated from the skin of a sea gastropod, Aplysia kurodai. The saccharide moiety of the glycolipid was characterized as 4-O-methyl-GlcNAc alpha 1----4GalNAc alpha-1----3 [6'-O-(2-aminoethylphosphonyl)Gal alpha 1----2] (2-aminoethylphosphonyl----6)Gal beta 1----4(2-aminoethylphosphonyl----6) Glc beta 1----1-ceramide. The major aliphatic components of the ceramide portion were palmitic acid, stearic acid, octadeca-4-sphingenine, and anteisononadeca-4-sphingenine. This glycolipid is unique in containing 4-O-methyl-N-acetylglucosamine and 3 mol of 2-aminoethylphosphonate residues, one of which is attached to C-6 of glucose.
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