the predominant oligosaccharides of mucin species i included three neutral structures : a disaccharide glcnac beta ( 1-3 ) galnac-ol , a trisaccharide gal beta ( 1-4 ) glcnac beta ( 1-3 ) galnac-ol , and a tetrasaccharide glcnac beta ( 1-4 ) gal beta ( 1-4 ) glcnac beta ( 1-3 ) galnac-ol as well as two acidic components representing the sialylated forms of two of these oligosaccharides .
C0041102
trisaccharide
C0028959
oligosaccharides