Purification and Partial Characterization of a Lectin from Phaseolus vulgaris

Abstract
A method is presented for the isolation of a lectin from a Brazilian cultivar of the common bean (Phaseolus vulgaris L.), through extraction in acidic (pH 4.2) medium, fractionation with ammonium sulfate, and chromatography on DEAE-cellulose. The lectin was shown to be homogeneous by gel electrophoresis and isoelectric focusing.