Glycoconjugate Journal

, Volume 11, Issue 3, pp 249–256 | Cite as

Analysis of glycosphingolipid-derived oligosaccharides by high pH anion exchange chromatography

  • Shutian Ruan
  • Kenneth O. Lloyd
Article

Abstract

As an adjunct to existing thin layer and column chromatographic methods for the identification of glycolipids a method that utilizes the high pH anion chromatographic (HPAEC) analysis of the oligosaccharides released from the glycolipids by endoglycoceramidase has been developed. Using a Dionex Carbo Pak PA1 column and elution with a linear gradient of sodium acetate in 0.2M NaOH, the elution times of eight neutral and fourteen acidic oligosaccharides derived from glycolipids were determined. Under these conditions the neutral oligosaccharides were well separated from each other but some of the acidic oligosaccharides had overlapping elution times. The ganglioside-derived oligosaccharides could be further identified by treating them with sialidase or by mild acid hydrolysis and reanalysing the products by HPAEC. The method was applied to the analysis of mixed bovine brain gangliosides. The procedure provides an additional approach for the initial identification of glycolipids by analysing the component oligosaccharides rather than the intact glycolipids.

Keywords

glycolipids gangliosides endoglycoceramidase sialidase 

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • Shutian Ruan
    • 1
  • Kenneth O. Lloyd
    • 1
  1. 1.Immunology Program, Memorial Sloan-Kettering Cancer CenterNew YorkUSA

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