Molecular species analysis of glycosphingolipids from small intestine of Japanese quail, Coturnix coturnix Japonica by HPLC/FAB/MS.
Neutral glycosphingolipids were isolated from quail small intestine and their structures were analysed. They contained: Gal beta 1-4GlcCer(LacCer), Gal alpha 1-4GalCer(Ga2Cer), Gal alpha 1-4Gal beta 1-4GlcCer(Gb3Cer), GlcNAc beta 1-3Gal beta 1-4GlcCer(Lc3Cer), GalNAc beta 1-4Gal beta 1-4GlcCer(Gg3Cer), GalNAc beta 1-4[GalNAc beta 1-3] Gal beta 1-4GlcCer(LcGg4Cer), and GalNAc alpha 1-3GalNAc beta 1-3Gal alpha 1-4Gal beta 1-4GlcCer (Forssman glycolipid) as well as glucosylceramide, galactosylceramide (Nishimura K et al. 1984) Biochim Biophys Acta 796:269-76) and the LeX glycolipid, III3 Fuc alpha-nLc4Cer (Nishimura K et al. (1989) J. Biochem (Tokyo) 101:1315-18). The molecular species compositions of these glycosphingolipids were examined using fast atom bombardment-mass spectrometry linked with reversed-phase high-performance liquid chromatography. By such analysis, we could classify the quail glycosphingolipids into at least three classes: glycolipids rich in species having four hydroxyl groups in the ceramides (GalCer, Gg3Cer, LcGg4Cer and LeX), those rich in the ceramides of N-acyl trihydroxysphinganine with normal fatty acids (Lc3Cer), and glycolipids rich in the ceramides of N-acyl sphingenine with normal fatty acids (LacCer, Gb3Cer and Forssman glycolipid). Immunohistochemical observation implies that the differences in the hydrophobic moieties specified the localization of glycosphingolipids in the tissue.
Suzuki
A C
AC
Department of Biology, Keio University School of Medicine, Yokohama, Japan.
Nakamura
A
A
Nishimura
K
K
D000818:Animals; D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D002855:Chromatography, Thin Layer; D003370:Coturnix; D005227:Fatty Acids / Q000032:analysis; D006017:Glycolipids / Q000737:chemistry* / Q000302:isolation & purification; D006028:Glycosphingolipids / Q000737:chemistry* / Q000302:isolation & purification; D006880:Hydroxy Acids / Q000032:analysis; D007413:Intestinal Mucosa / Q000737:chemistry* / Q000166:cytology; D007421:Intestine, Small / Q000737:chemistry* / Q000166:cytology; D008745:Methylation; D008969:Molecular Sequence Data; D016339:Spectrometry, Mass, Fast Atom Bombardment
D005227:Fatty Acids; D006017:Glycolipids; D006028:Glycosphingolipids; D006880:Hydroxy Acids