Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-11-2
pubmed:abstractText
Bacterial O-antigens coupled to biotin were shown to function well as labelled antigens in direct enzyme immunoassay. O-polysaccharides released from lipopolysaccharides by mild acid hydrolysis were oxidized by sodium periodate at sites located within the lipopolysaccharide inner core region and the generated aldehyde groups were subjected to reductive amination with 1,3-diaminopropane to yield per-aminated O-polysaccharide derivatives. Biotin was coupled to the introduced amino groups by way of a N-hydroxy-succinimide ester derivative. Biotinylated polysaccharides were used in direct enzyme immunoassays, that employed monoclonal antibody coated microtitre plates and detection of bound biotinylated antigen by streptavidin/horseradish peroxidase reagent. The assay format was designed for rapid estimation of the affinity constants of monoclonal antibodies for small oligosaccharide inhibitors, but the assay is also well suited to fast and sensitive detection of bacterial O-polysaccharides at concentrations within the range 1-10 ng/ml.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-1759
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
132
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-61
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
O-antigen biotin conjugates. Preparation and use in direct competitive enzyme immunoassays.
pubmed:affiliation
National Research Council, Division of Biological Sciences, Ottawa, Ontario, Canada.
pubmed:publicationType
Journal Article