Figure 2: N-glycosylation profiles of the fractions separated by the DEAE column, on an amide column. N1-10, M1-4, D1-3, T1-2, and Te1-2 denote the fractions of neutral, monosialyl, disialyl, trisialyl, and tetrasialy oligosaccharides, respectively, each of which were numbered in order of elution time. Asterisks indicate fractions containing no detectable PA-oligosaccharide.