Subunit exchange between lectins from different cereal species |
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Authors: | Willy J. Peumans Hetty M. Stinissen Albert R. Carlier |
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Affiliation: | (1) Laboratorium voor Plantenbiochemie, Katholieke Universiteit Leuven, Vaartstraat 24, B-3000 Leuven, Belgium |
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Abstract: | Lectins from Triticum monococcum, Secale cereale (rye), and Hordeum vulgare (barley) can exchange their subunits in vitro and thereby form (intergeneric) heteromeric lectins. An analysis of the isolectin pattern of a Triticale variety revealed that intergeneric heterodimers of wheat and rye lectin subunits are normal constituents of the embryo cells. It appears, therefore, that these different cereal lectins are structurally so closely related that their subunits can not distinguish between identical and nonidentical partners when they associate into dimers.Abbreviations CL cereal lectin - SP Sephadex sulfopropyl Sephadex - WGA wheat germ agglutinin |
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Keywords: | Heteromeric lectin Hordeum Lectin Secale Triticale Triticum (lectins) |
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