Abstract
The precipitin reaction between concanavalin A, a globulin isolated from jackbean meal, and certain polysaccharides has been examined. Using a turbidimetric assay and a partially purified concanavalin A preparation, it has been shown that only branched polysaccharides possessing α- d-glucopyranosyl or α- d-mannopyranosyl units will interact with the protein to form a precipitate. The extent of precipitate formation is dependent on the concentration of both concanavalin A and polysaccharide and the reaction appears to be analogous to an antibody-antigen system. The frequency of branching of the polysaccharide molecule plays an important role in the extent of interaction with concanavalin A. Dextrans may be classified according to their extent of reaction with the protein.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - General Subjects
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