Streptococcus pneumoniae type 19A polysaccharide. Synthesis of the trisaccharide component of the repeating unit
β Scribed by Luigi Panza; Fiamma Ronchetti; Lucio Toma
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 259 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0008-6215
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The structure of the Pneumococcus type 19A (57) capsular polysaccharide has been reinvestigated by using methylation analysis and n.m.r. spectroscopy. It is composed of residues of 2-acetamido-2-deoxy-D-mannose, D-glUCOSe, L-rhamnose, and phosphate in the molar ratios of 1:l: 1:l. The polysaccharide
Methyl 2-acetamido-4-amino-2,4,6-trideoxy-3-0-(~-D-galactopyranosyl-uronit acid)-cY-D-galactopyranoside has been synthesised. The parent disaccharide is a structural element of the capsular polysaccharide antigen of Streptococcus pneumoniae type 1.
One-and two-dimensional XIO-MHz 'H-n.m.r. studies of the capsular polysaccharide from Streptococcus pneumoniae type 23 have been used to determine its structure, which was confirmed by limited degradation. The proposed structure (1) differs from those suggested previously'J and the phosphate group h
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v