✦ LIBER ✦

Structural determination of the capsular polysaccharide of Streptococcus pneumoniae type 19A (57)

✍ Scribed by Ewa Katzenellenbogen; Harold J. Jennings

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 714 KB
Volume: 124
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(83)88459-6

No coin nor oath required. For personal study only.

✦ Synopsis

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 is linear, and is composed of these components in a repeating unit of the following structure.

The type 19A polysaccharide (Na+ salt) was depolymerized by heating it in water at loo", conditions that also hydrolyzed the newly formed phosphoric monoesters.

'The Danish system of nomenclature, followed by the U.S. system in parentheses, is used throughout. **N.R.C.C. No. 22613.

📜 SIMILAR VOLUMES

Structural determination of the capsular

Structural determination of the capsular polysaccharide of Streptococcus pneumoniae type 18C (56)

✍ Czeslaw Lugowski; Harold J. Jennings 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 748 KB

The specific capsular polysaccharide of Streptococcus pneumoniae type 18C (56) contains D-glucose, D-galactose, L-rhamnose, and glycerol residues, and phosphate and O-acetyl groups in the molar ratios of 3:1:1:1:1:1. Accumulated data from methylation analyses of the native and the specifically degra

Structural studies of the capsular polys

Structural studies of the capsular polysaccharide from Streptococcus pneumoniae type 5

✍ Per-Erik Jansson; Bengt Lindberg; Ulf Lindquist 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 680 KB

The structure of the capsular polysaccharide (S5) elaborated by Streptococcus pneumoniae type 5 has been investigated by using n.m.r. spectroscopy, methylation analysis, and various specific degradations. It is concluded that the polysaccharide is composed of pentasaccharide repeating-units having t

Structure of the capsular polysaccharide

Structure of the capsular polysaccharide from Streptococcus pneumoniae type 23

✍ Abhijit Roy; Nirmolendu Roy 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 477 KB

The capsular polysaccharide from Streptococcus pneumoniae Type 23 (S-23) was found to contain D-galactose, D-glucose, L-rhamnose, glycerol, and phosphorus in the ratios of 1: 1: 2:0.6: 1. Methylation analysis provided information about the linkages of the different sugar units. The sequence of the d

Structural studies of the capsular polys

Structural studies of the capsular polysaccharide from Streptococcus pneumoniae type 17A

✍ Per-Erik Jansson; Bengt Lindberg; Ulf Lindquist; Dennis J. Carlo 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 928 KB

Structural studies of the capsular polys

Structural studies of the capsular polysaccharide from Streptococcus pneumoniae type 12A

✍ Karin Leontein; Bengt Lindberg; Jörgen Lönngren; Dennis J. Carlo 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 674 KB

Structural studies of the capsular polys

Structural studies of the capsular polysaccharide from streptococcus pneumoniae type 2, a reinvestigation

✍ Per-Erik Jansson; Bengt Lindberg; Mats Andersson; Ulf Lindquist; Jørgen Henrichs 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 431 KB

The structure of the capsular polysaccharide from Streptococcus pneumoniae type 2 has been reinvestigated, specific degradations and n.m.r. spectroscopy being the main methods used. It is concluded that the polysaccharide is composed of hexasaccharide repeating-units having the following structure,