Isolation and partial characterization of wheat-germ-agglutinin-like lectins from rye (Secale cereale) and barley (Hordeum vulgare) embryos

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Abstract
Lectins were isolated from embryos of S. cereale (rye) and H. vulgare (barley) by affinity chromatography on immobilized N-acetylglucosamine. Both lectins are dimeric proteins of 2 identical subunits of MW 18,000. They resemble strongly wheat-germ agglutinin with respect to their chemical, physical, biological and immunological properties. [Plant lectins are widely used as powerful tools in cell-surface and complex-carbohydrate research owing to their unique ability to bind specific sugars or sugar-containing macromolecules.].