( 3 ) the degree of surface sialylation determined by galactose oxidase -- sodium borotritide labelling of neuraminidase-treated and untreated cells revealed that 44 -- 89 % of exposed galactose and/or n-acetyl galactosamine residues of total cell-surface saccharides were sialylated in highly and intermediately metastatic lines as compared with 11-30 % in the poorly and non-metastatic lines ;
C0007634
cells
C0699040
of