Home / Products / Lectins and Glycobiology Reagents / Lectins / Ricin B Chain Ricin B Chain Ricin B chain has been isolated from highly purified RCA II. B chain is the component of ricin which binds surface carbohydrate receptors and facilitates the transport of ricin into the cell. Although our ricin B chain has a substantially lower toxicity than native ricin in both cell culture test systems and cell-free protein synthesis assays, essentially all of the galactose/N-acetylgalactosamine binding activity is retained. 1 Showing Position Name Catalog Number Price View as: List Grid Show 30 60 120 Ricin B Chain Catalog Number: L-1290 Unit Size: 1 mg Add to Wishlist | Add to Compare $165.00 Add to Cart 1 Showing Position Name Catalog Number Price View as: List Grid Show 30 60 120 Didn't find what you were looking for? Submit a suggestion.