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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
51
pubmed:dateCreated
2007-11-21
pubmed:abstractText
Enzymatic ligation methods are useful in diagnostic detection of DNA sequence. Here we describe the investigation of nonezymatic phosphorothioate-iodoacetyl DNA chemical ligation as a method for detection and identification of RNA and DNA. Specificity of ligation on DNA target is shown to yield discrimination of single point mutation as a drop in two magnitude. Although enzymatic ligation shows very low activity for RNA target, this reaction is found to be very efficient on RNA target. This chemical ligation with RNA target completes 70% within a few seconds, which equal or overcome ligase enzyme-mediated ligation with DNA target. The reaction is also shown to exhibit a significant level of signal amplification under thermal cycle for short time. Further, we found recently that ligation fidelity changed in function of chemical reactivity of probe. This trend was systematically investigated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1746-8272
pubmed:author
pubmed:issnType
Electronic
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
353-4
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Multiple chemical ligation under thermal cycle.
pubmed:affiliation
Nanomedical Engineering Laboratory, Discovery Research Institure, Riken, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. yukok@riken.jp
pubmed:publicationType
Journal Article