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Immobilized wheat germ agglutinin separates small oligosaccharides derived from poly-N-acetyllactosaminoglycans of embryonal carcinoma cells.

Five pure oligosaccharides derived from poly-N-acetyllactosaminoglycans of teratocarcinoma cells were chromatographed on immobilized wheat germ agglutinin (WGA). Three of them, Gal beta 1-4GlcNAc, GlcNAc beta 1-3Gal, and GlcNAc beta 1-3Gal beta 1-4GlcNAc, revealed only weak binding, but GlcNAc beta 1-6Gal beta 1-4GlcNAc was bound moderately and GlcNAc beta 1-6Gal was bound quite strongly. The differences in the binding affinities were large enough to allow chromatographic separation of the five oligosaccharides into three distinct fractions in a small column of WGA-agarose.