Abstract
PREVIOUS work1 has established that in Pneumococcus type XIV polysaccharide there are two non-reducing end groups of D-galactopyranose, one D-galactopyranose residue linked 1 : 3, one D-glucose residue linked 1 : 4 and two 1 : 4 : 6-linked 2-acetamido 2-deoxy D-glucose residues for every six monosaccharide units. Although the majority of these linkages are (β-, some α-D-galactose units may be present. The two major disaccharides left after treatment of the type XIV polysaccharide with N hydrochloric acid at 100° for 2½ hr. were 4-O-β-D-glucosyl 2-acetamido 2-deoxy D-glucose and 3-O-β-(2-acetamido 2-deoxy)-D-glucosyl D-galactose. Less drastic hydrolysis has enabled other disaccharides to be isolated and the structure of these is the subject of the present communication.
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BARKER, S., KEITH, M. & STACEY, M. Monosaccharide Sequence in Pneumococcus Type XIV Polysaccharide. Nature 189, 746–747 (1961). https://doi.org/10.1038/189746b0
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DOI: https://doi.org/10.1038/189746b0
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