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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1992-4-13
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pubmed:abstractText |
Point mutation in the nucleotide sequence of the structural genes for the TEM-type penicillinases can broaden their substrate spectrum towards all beta-lactams except cephamicins and imipenem. We describe here hybridization techniques for the detection of point mutations by non-radioactive oligonucleotide probes with plasmid DNA carrying bla T genes immobilized in polystyrene microwells. After hybridization in discriminating conditions with corresponding biotinylated oligonucleotide probes, the hybrids were detected by using a streptavidin-alkaline phosphatase conjugate and a fluorogenic substrate, 4-methylumbelliferyl-phosphate. The adsorption of DNA to microwells used in the present work was found to be independent of Mg2+ and Na+ concentrations. By this method, less than 3 fmols of target DNA were sufficient for the detection of point mutation.
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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 |
Feb
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pubmed:issn |
0890-8508
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
6
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pubmed:geneSymbol |
bla T-1,
bla T-3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
79-85
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:1545833-Adsorption,
pubmed-meshheading:1545833-Base Sequence,
pubmed-meshheading:1545833-DNA, Bacterial,
pubmed-meshheading:1545833-Enterobacteriaceae,
pubmed-meshheading:1545833-Fluorometry,
pubmed-meshheading:1545833-Genes, Bacterial,
pubmed-meshheading:1545833-Molecular Sequence Data,
pubmed-meshheading:1545833-Mutation,
pubmed-meshheading:1545833-Nucleic Acid Hybridization,
pubmed-meshheading:1545833-Oligonucleotide Probes
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pubmed:year |
1992
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pubmed:articleTitle |
Detection of point mutation in bla T genes of Enterobacteriaceae by biotinylated oligonucleotide probes using microwell hybridization and enzymofluorometric method.
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pubmed:affiliation |
Laboratoire des Sondes Froides, Institut Pasteur, Paris, France.
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pubmed:publicationType |
Journal Article
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