Erythrina cristagalli (coral tree) lectin is a 54,000 dalton glycoprotein consisting of two different subunits of approximately 28,000 and 26,000 daltons. It has a specificity toward galactose residues and appears to have the highest binding activity toward galactosyl ( b -1,4)…

Peanut agglutinin (PNA, Peanut Agglutinin) is a 110,000 molecular weight lectin composed of four identical subunits of approximately 27,000 daltons each. PNA binds preferentially to a commonly occurring structure, galactosyl (b-1,3) N-acetylgalactosamine. This carbohydrate sequence (called the…