Triplex formation with α anomers of purine-rich and pyrimidine-rich oligodeoxynucleotides
نویسندگان
چکیده
منابع مشابه
Effect of competing self-structure on triplex formation with purine-rich oligodeoxynucleotides containing GA repeats.
Competition between triplex formation with double-stranded DNA and oligonucleotide self-association was investigated in 23mer GA and GT oligonucleotides containing d(GA)5 or d(GT)5 repeats. Whereas triplex formation with GT oligonucleotides was diminished when temperature increased from 4 to 37 degrees C, triplex formation with GA oligonucleotides was enhanced when temperature increased within ...
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We have studied a protonated pyrimidine-purine-purine (Py-Pu-Pu) triplex, which is formed between the d(C)nd(G)n duplex and the d(AG)m oligonucleotide as the third strand and carries the CG*A+ protonated base-triads. We have observed such an intermolecular complex between a plasmid carrying the d(C)18 d(G)18 insert and the d(AG)5 oligonucleotide without bivalent cations in 200 mM of Na+ at pH4....
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Several oligodeoxynucleotides (ODNs) were designed in order to interact with the purine rich element of the IRE (Interferon Responsive Element) of the 6-16 gene by triplex formation. An ODN of 21 bases, the sequence being identical to that of the purine strand of the IRE (48% G), but in reverse orientation, was able to interact with the IRE (KD: 20 nM). The binding was Mg2+ dependent. The two p...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1995
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/23.20.4042