SBA preferentially binds to oligosaccharide structures of n-acetylgalactosamine with alpha - or beta - junctions at the end, and to a lesser extent to galactose residues. Binding can be prevented by substitution on the second-to-last sugar, such as the focal point attached to the second-to-last galactose in the type B blood substance. Biotinylated soybean lectin has an appropriate amount of biotin binding, which provides the best staining properties for this lectin. This conjugate contains essentially no unconjugated biotin and is preserved with sodium azide.
For research use only, not for clinical use.