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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-12-12
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pubmed:abstractText |
A sensitive nonisotopic solution hybridization assay for detection of RNA is described and characterized using a pSP65 plasmid model system. The assay procedure is based on a hybridization reaction in solution between a biotinylated DNA probe and a target RNA. The biotin-labeled hybrids are captured on a microtiter plate coated with an antibody to biotin. Bound DNA-RNA hybrids are detected by an immunoreaction with an enzyme-labeled monoclonal antibody specifically directed against DNA-RNA heteropolymers and the hybrids are quantitatively measured with the addition of a fluorogenic substrate. Optimal conditions under which to perform the assay were hybridization time, 1000 min; temperature, 75 degrees C; probe concentration, 0.2 microgram/ml; extent of probe biotinylation, 6.7%; buffer stringency, 2x SSC. A bisulfite-modified DNA probe was compared to nick-translated probes synthesized with reporter groups of different lengths (bio-11-dUTP or bio-19-dUTP). All probes could detect 10 pg/ml of target RNA. The presence of nonhomologous DNA or RNA sequences reduced the sensitivity of RNA detection by one half-log to 32 pg/ml (1.6 pg/assay).
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pubmed:grant | |
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 |
Aug
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pubmed:issn |
0003-2697
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
181
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
153-62
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2479292-Animals,
pubmed-meshheading:2479292-Antibodies, Monoclonal,
pubmed-meshheading:2479292-Biotin,
pubmed-meshheading:2479292-DNA Probes,
pubmed-meshheading:2479292-Escherichia coli,
pubmed-meshheading:2479292-Immunoenzyme Techniques,
pubmed-meshheading:2479292-Kinetics,
pubmed-meshheading:2479292-Microchemistry,
pubmed-meshheading:2479292-Nucleic Acid Hybridization,
pubmed-meshheading:2479292-Plasmids,
pubmed-meshheading:2479292-RNA
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pubmed:year |
1989
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pubmed:articleTitle |
Nonisotopic detection of RNA in an enzyme immunoassay using a monoclonal antibody against DNA-RNA hybrids.
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pubmed:affiliation |
Eudowood Division of Infectious Diseases, Johns Hopkins University, School of Medicine, Baltimore, Maryland 21205.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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