The specific capsular polysaccharide of Streptococcus pneumoniae type 9V

1981 ◽  
Vol 59 (7) ◽  
pp. 524-533 ◽  
Author(s):  
Malcolm B. Perry ◽  
Virginia Daoust ◽  
Dennis J. Carlo

The specific capsular polysaccharide produced by Streptococcus pneumoniae type 9V (American type 68) is composed of D-glucuronic acid (1 part), D-galactose (1 part), 2-acetamido-2-deoxy-D-mannose (1 part), D-glucose (2 parts), and O-acetyl (1.6 parts). Methylation, periodate oxidation, optical rotation, and nuclear magnetic resonance studies, and partial hydrolysis showed that the polysaccharide is an unbranched high molecular weight linear polymer of a partially O-acetylated pentasaccharide repeating unit having the structure indicated below.[Formula: see text]

1988 ◽  
Vol 66 (7) ◽  
pp. 758-771 ◽  
Author(s):  
James C. Richards ◽  
Malcolm B. Perry

The specific capsular polysaccharide of Streptococcus pneumoniae serotype 23F (American type 23) is composed of a repeating tetrasaccharide unit containing D-glucose (one part), D-galactose (one part), L-rhamnose (two parts), glycerol (one part), and phosphate (one part). By composition analysis, optical rotation, partial hydrolysis, periodate oxidation, methylation, and high-resolution 1H and 13C nuclear magnetic resonance studies, the elucidated unambiguous structure was in agreement with our earlier proposal but is at variance with structures proposed later by other authors. The structure of the type 23F pneumococcal polysaccharide is[Formula: see text]


1984 ◽  
Vol 62 (2-3) ◽  
pp. 151-161 ◽  
Author(s):  
Martine Caroff ◽  
Malcolm B. Perry

The specific capsular polysaccharide of Streptococcus pneumoniae type 15A (American type 30) is composed of D-galactose (three parts), D-glucose (one part), 2-acetamido-2-deoxy-D-glucose (one part), phosphate (one part), and glycerol (one part). Hydrolysis, periodate oxidation, methylation, optical rotation, and nuclear magnetic resonance studies showed that the polysaccharide is a high molecular weight linear polymer of a pentasaccharide repeating unit having the structure:[Formula: see text]


1984 ◽  
Vol 62 (8) ◽  
pp. 666-677 ◽  
Author(s):  
James C. Richards ◽  
Malcolm B. Perry ◽  
Peter J. Kniskern

The specific capsular polysaccharide of Streptococcus pneumoniae type 33F (American type 70) is composed of D-galactose (5 parts), D-glucose (1 part), and O-acetyl (ca. 0.4 parts). Periodate oxidation, partial hydrolysis, and 1H and 13C nuclear magnetic resonance studies showed that the polysaccharide is a high molecular weight polymer of a repeating hexasaccharide unit having the structure:[Formula: see text]


1982 ◽  
Vol 60 (2) ◽  
pp. 124-130 ◽  
Author(s):  
Malcolm B. Perry ◽  
Ann C. Webb

The capsular polysaccharide produced by Cryptococcus laurentii (NRRL Y-1401) is composed of D-mannose (3 mol), D-glucuronic acid (1 mol), D-xylose (1 mol), and O-acetyl (~1 mol). Methylation, periodate oxidation, partial acid hydrolysis, optical rotation, and nuclear magnetic resonance studies showed that the polysaccharide is a high molecular weight branched polymer of regular structure having a repeating pentasaccharide unit with the structure:[Formula: see text]


1985 ◽  
Vol 63 (9) ◽  
pp. 953-968 ◽  
Author(s):  
James C. Richards ◽  
Malcolm B. Perry ◽  
Peter J. Kniskern

The specific polysaccharide of Streptococcus pneumoniae type 11F (American type 11) is composed of 2-acetamido-2-deoxy-D-glucose (one part), D-glucose (one part), D-galactose (two parts), ribitol (one part), phosphate (one part), and O-acetyl (two parts). Hydrolysis, dephosphorylation, periodate oxidation, methylation, optical rotation, and 1H and 13C nuclear magnetic resonance studies showed that the polysaccharide is an unbranched linear polymer of a ribitol-phosphate substituted repeating tetrasaccharide unit having the structure:[Formula: see text]The specific capsular polysaccharides of S. pneumoniae type 11B and 11C (American types 76 and 53) were found to have the same tetrasaccharide repeating unit as the 11F polysaccharide, but differed from it in their mode of O-acetylation and the replacement of the ribitol phosphate by glycerol phosphate in the 11C specific polysaccharide.


1984 ◽  
Vol 62 (12) ◽  
pp. 1309-1320 ◽  
Author(s):  
James C. Richards ◽  
Malcolm B. Perry ◽  
Peter J. Kniskern

The specific capsular polysaccharide produced by Streptococcus pneumoniae type 9L (American type 49) is composed of D-galactose (one part), D-glucose (one part), D-glucuronic acid (one part), 2-acetamido-2-deoxy-D-mannose (one part) and 2-acetamido-2-deoxy-D-glucose (one part). Partial acid hydrolysis, periodate oxidation, nitrous acid deamination, optical rotation, methylation and 13C and 1H nuclear magnetic resonance studies showed that the polysaccharide is an unbranched high molecular weight linear polymer of a repeating pentasaccharide unit having the structure:[Formula: see text]


1983 ◽  
Vol 61 (4) ◽  
pp. 178-190 ◽  
Author(s):  
James C. Richards ◽  
Malcolm B. Perry ◽  
Dennis J. Carlo

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]


1987 ◽  
Vol 65 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Malcolm B. Perry ◽  
Leann L. MacLean

The cellular lipopolysaccharide produced by Yersinia enterocolitica serotype O:5,27 was of the S-type and composed of an antigenic O-chain polysaccharide linked through a core oligosaccharide region, which in turn was linked through 3-deoxy-D-manno-octulonosyl units to a lipid A moiety. The O-chain polysaccharide was composed of equal molar amounts of L-rhamnose and D-xylulose. By partial hydrolysis, periodate oxidation, methylation, specific optical rotation, and 13C and 1H nuclear magnetic resonance studies, the structure of the O-chain was established as being a linear backbone of alternating 1,3-linked α-L-rhamnopyranosyl and β-L-rhamnopyranosyl units, to which 2,2-linked β-D-threo-pent-2-ulofuranoside (D-xylulofuranoside) units were present on every L-rhamnopyranosyl residue, as shown below.[Formula: see text]


1988 ◽  
Vol 66 (10) ◽  
pp. 1066-1077 ◽  
Author(s):  
Jean-Robert Brisson ◽  
Malcolm B. Perry

Salmonella boecker, which belongs to group 0:6, 14(H) and shows the antigenic factors 6, 14, [1], and [25], defined by the Kauffmann–White system, produces two lipopolysaccharides differing from each other in the structures of their 0-polysaccharide moieties. By glycose composition, partial hydrolysis, nitrous acid deamination, methylation, optical rotation, and 1H and 13C nuclear magnetic resonance studies, the O-polysaccharides were demonstrated to be high-molecular-weight polymers (I and II) composed of either structurally related repeating tetrasaccharide or repeating pentasaccharide units having the structuresand[Formula: see text][Formula: see text]


1987 ◽  
Vol 65 (11) ◽  
pp. 960-967 ◽  
Author(s):  
Eleonora Altman ◽  
Jean-Robert Brisson ◽  
Malcolm B. Perry

The capsular polysaccharide of Haemophilus pleuropneumoniae serotype 3 (ATCC 27090) is composed of D-galactose (one part), 2-acetamido-2-deoxy-D-glucose (one part), glycerol (one part), and phosphate (one part). From hydrolysis, dephosphorylation, methylation, and 1H and 13C nuclear magnetic resonance studies, the polysaccharide was found to be a high molecular weight polymer of a repeating trisaccharide unit, joined through monophosphate diester linkages and having the following structure:[Formula: see text]


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