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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-1-2
pubmed:abstractText
A new method is described for sequencing linear oligosaccharides on gels using charged, fluorescent conjugates. The reducing ends of various mono-, di-, tri-, and tetra-saccharides were conjugated with monopotassium 7-amino-1,3-naphthalenedisulfonate (a fluorescent and negatively charged compound) by reductive amination using sodium cyanoborohydride. The sugar conjugates were purified by preparative gradient polyacrylamide gel electrophoresis followed by a newly developed technique involving their semi-dry transfer to positively charged nylon membranes and elution with sodium chloride. The structures of a monosaccharide- and trisaccharide-conjugate were established by f.a.b.-m.s. and 2D n.m.r. Seven linear oligosaccharide-fluorescent conjugates were treated sequentially with exoglycosidases and with endoglycosidases. Analysis of the products by gel electrophoresis provided sequence information. These methods may be useful for sequencing oligosaccharides that are chemically or enzymically (endoglycosidase) released from glycoproteins, glycolipids, and proteoglycans.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0008-6215
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
214
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-68
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
A new method for sequencing linear oligosaccharides on gels using charged, fluorescent conjugates.
pubmed:affiliation
Division of Medicinal and Natural Products Chemistry, College of Pharmacy, University of Iowa, Iowa City 52242.
pubmed:publicationType
Journal Article