studies performed with various lectins ( bandeiraea simplicifolia i and i ( b4 ) , wheat germ , ricinus communis , and soybean ) on the gycoproteins , either native or after treatment with glycosidases ( alpha- or beta-galactosidase , neuraminidase ) , indicated that sialic acid and alpha-linked galactose were in terminal positions , beta-galactosyl residues were internally located , and chains containing the sequence sialic acid-n-acetylgalactosamine were present .
C0017976
glycosidases
C0027803
neuraminidase