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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
25
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pubmed:dateCreated |
1991-10-4
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pubmed:abstractText |
Serotype-specific polysaccharide antigens from Actinobacillus actinomycetemcomitans ATCC 29523 (serotype a) and NCTC 9710 (serotype c) were extracted from whole cells by autoclaving and purified by ion-exchange chromatography and gel filtration. Analysis of component sugars by gas-liquid chromatography-mass spectrometry, high performance liquid chromatography, and NMR together with optical rotation data showed that the serotype a antigen was composed solely of 6-deoxy-D-talose, whereas the serotype c antigen consisted of 6-deoxy-L-talose. Structural analysis indicated that both of these antigens were composed of closely related repeating units, -3)-6-deoxy-alpha-D-Talp-(1-2)-6-deoxy-alpha-D-Talp-(1-(sero type a) and -3)-6-deoxy-alpha-L-Talp-(1-2)-6-deoxy-alpha-L-Talp-(1-(sero type c). 1H and 13C NMR analysis showed that both of these serotype antigens contained one acetyl group/2 sugar residues. These acetyl groups localized at the O-2 position of 3-linked 6-deoxy-D-talose (serotype a) or O-4 position of 3-linked 6-deoxy-L-talose residues (serotype c), respectively. These results coupled with our previous findings on the serotype b antigen (Amano, K., Nishihara, T., Shibuya, N., Noguchi, T., and Koga, T. (1989) Infect. Immun. 57, 2942-2946) showed that the serotype antigens from A. actinomycetemcomitans are a group of novel polysaccharides with structural features closely related biosynthetically.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
266
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
16318-23
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1885566-Actinobacillus,
pubmed-meshheading:1885566-Antigens, Bacterial,
pubmed-meshheading:1885566-Carbohydrate Sequence,
pubmed-meshheading:1885566-Gas Chromatography-Mass Spectrometry,
pubmed-meshheading:1885566-Magnetic Resonance Spectroscopy,
pubmed-meshheading:1885566-Molecular Sequence Data,
pubmed-meshheading:1885566-Molecular Structure,
pubmed-meshheading:1885566-Polysaccharides,
pubmed-meshheading:1885566-Polysaccharides, Bacterial,
pubmed-meshheading:1885566-Serotyping
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pubmed:year |
1991
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pubmed:articleTitle |
6-Deoxy-D-talan and 6-deoxy-L-talan. Novel serotype-specific polysaccharide antigens from Actinobacillus actinomycetemcomitans.
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pubmed:affiliation |
National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Tsukuba, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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