Purification and primary structure determination of a galactose-specific lectin from Vatairea guianensis Aublet seeds that exhibits vasorelaxant effect

► A new galactose-specific lectin from Vatairea guianensis Aublet seeds (VGL) was purified and partially characterized. ► The complete amino acid sequence of VGL was determined by tandem mass spectrometry. ► VGL exhibits vasorelaxant activity in contracted rat aortas.