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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1992-9-17
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pubmed:abstractText |
The complete primary structures of seven oligosaccharide subunits of the xyloglucan secreted by suspension-cultured Acer pseudoplatanus cells were determined. The oligosaccharides, ranging in size from 17 to 20 glycosyl residues, were generated by treatment of the xyloglucan with an endo-beta-(1----4)-glucanase. The oligosaccharide components of a fraction obtained by Bio-Gel P-2 chromatography of enzyme-treated xyloglucan were further purified by normal-phase h.p.l.c. and then converted to the corresponding oligoglycosyl alditols by reduction with NaBH4. The oligoglycosyl alditols, after purification to near homogeneity by reversed-phase h.p.l.c., were structurally characterized by 1H-n.m.r. spectroscopy, fast-atom bombardment mass spectrometry (f.a.b.-m.s.), and analysis of their glycosyl-residue and glycosyl-linkage compositions. Novel structural elements of xyloglucans were observed in this study, including beta-D-xylopyranosyl and alpha-L-arabinofuranosyl-(1----3)-beta-D-xylopyranosyl sidechains. The results also extend our list of correlations between 1H-n.m.r. resonances and specific structural features of xyloglucans and thus enhance our ability to determine the structures of xyloglucans from various sources.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cellulase,
http://linkedlifedata.com/resource/pubmed/chemical/Glucans,
http://linkedlifedata.com/resource/pubmed/chemical/Oligosaccharides,
http://linkedlifedata.com/resource/pubmed/chemical/Polysaccharides,
http://linkedlifedata.com/resource/pubmed/chemical/Xylans,
http://linkedlifedata.com/resource/pubmed/chemical/xyloglucan
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0008-6215
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
6
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pubmed:volume |
227
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
45-71
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1499036-Carbohydrate Sequence,
pubmed-meshheading:1499036-Cells, Cultured,
pubmed-meshheading:1499036-Cellulase,
pubmed-meshheading:1499036-Chromatography,
pubmed-meshheading:1499036-Gas Chromatography-Mass Spectrometry,
pubmed-meshheading:1499036-Glucans,
pubmed-meshheading:1499036-Magnetic Resonance Spectroscopy,
pubmed-meshheading:1499036-Molecular Sequence Data,
pubmed-meshheading:1499036-Oligosaccharides,
pubmed-meshheading:1499036-Plants,
pubmed-meshheading:1499036-Polysaccharides,
pubmed-meshheading:1499036-Xylans
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pubmed:year |
1992
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pubmed:articleTitle |
Characterization of seven xyloglucan oligosaccharides containing from seventeen to twenty glycosyl residues.
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pubmed:affiliation |
Complex Carbohydrate Research Center, University of Georgia, Athens 30602.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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