Morus rubra lectin (MRL) is isolated from red mulberry was purified to homogeneity from the leaves by a single-step immobilized metal ion affinity chromatography (IMAC) procedure. The molecular weight of MRL is around 52,000 and has a specificity towards galactose, D-galactosamine and N-acetyl-D-galactosamine. MRL also has haemagglutination activity towards different erythrocyte blood groups. MRL has stability over a wide range of temperatures (up to 80Ã«ï¿½C) and an isoelectric point that ranges between pH 4 and pH 11. Lectin bonding with EDTA did not alter the haemagglutining activity which demonstrates that metal ions are not required for activity.
This product comes in a lyophilized form and is stored at 20Ã«ï¿½C. MRL does not require any metal ions for binding.