Griffonia (Bandeiraea) Simplicifolia Lectin I (GSL I, BSL I), Fluorescein

GSLI is a family of glycoproteins with a molecular weight of about 114 kDa. There are two types of subunits, called A and B, with slightly different molecular weights. These subunits combine to form a tetramer structure, producing five isolates. A-rich lectins preferentially agglutinate group A red blood cells and therefore appear to be specific to α-n-acetylgalactosamine residues, while B-rich lectins preferentially agglutinate group B cells and are specific to α-galactosamine residues. Our GSLI is a mixture of five isolates. GSLI has been reported to bind to a variety of glycoproteins, including laminin. Fluorescein-labeled GSLI has the appropriate amount of fluorescent dye binding to provide the best staining properties for this lectin. This conjugated substance basically does not contain unconjugated fluorescent dyes. The excitation maximum is 495nm and the emission maximum is 515nm.