title: Neutral glycosphingolipids isolated from porcine corneas.
abstract: Six neutral glycosphingolipids were isolated from porcine corneas using silicic acid column chromatography and preparative thin-layer chromatography. Five of these glycolipids were partially identified by gas-liquid chromatography. Two were glucosylceramides, two were lactosylceramides and one was tetrahexosylceramide containing galactose, glucose and N-acetylgalactosamine in the molar ratio of 2:1:1. Glucosylceramides were found to be the predominating component, with lactosyl- and tetrahexosylceramides being the minor constituents. Sphingosine was the major long-chain base in all fractions. The fatty acids of the corneal neutral glycosphingolipids were variable in chain length. This represents the first investigation of neutral glycosphingolipids in corneas of any species.
authors.affiliation: Department of Ophthalmology, Lions of Illinois Eye Research Institute, University of Illinois, Chicago College of Medicine 60612.
authors.forename: B Y
authors.initials: BY
authors.lastname: Yue
authors.forename: R V
authors.initials: RV
authors.lastname: Tao
authors.forename: B C
authors.initials: BC
authors.lastname: Lee
authors.forename: J
authors.initials: J
authors.lastname: Sugar
mesh_terms: D000818:Animals; D002240:Carbohydrate Sequence; D002845:Chromatography; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D003315:Cornea / Q000032:analysis*; D005227:Fatty Acids / Q000302:isolation & purification; D006028:Glycosphingolipids / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D008759:Methylglycosides / Q000302:isolation & purification; D008969:Molecular Sequence Data; D013110:Sphingosine / Q000302:isolation & purification; D013552:Swine
chemical_list: D005227:Fatty Acids; D006028:Glycosphingolipids; D008759:Methylglycosides; D013110:Sphingosine