The specific capsular polysaccharide of Streptococcus pneumoniae type 20
1983 ◽
Vol 61
(4)
◽
pp. 178-190
◽
Keyword(s):
The specific capsular polysaccharide produced by Streptococcus pneumoniae type 20 is composed of D-glucose (three parts), D-galactose (two parts), 2-acetarnido-2-deoxy-D-glucose (one part), phosphate (one part), and O-acetyl (approximately two parts). Methylation, periodate oxidation, optical rotation, nuclear magnetic resonance, partial and enzymic hydrolyses, and chromatographic studies showed that the polysaccharide is a high molecular weight polymer of partially O-acetylated hexasaccharide repeating units linked by monophosphate, having the structure indicated below:[Formula: see text]
1984 ◽
Vol 62
(2-3)
◽
pp. 151-161
◽
1984 ◽
Vol 62
(8)
◽
pp. 666-677
◽
1981 ◽
Vol 59
(7)
◽
pp. 524-533
◽
1988 ◽
Vol 66
(10)
◽
pp. 1066-1077
◽