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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
48
pubmed:dateCreated
2006-12-7
pubmed:abstractText
Oligonucleotides containing polyamines are currently being evaluated as potential antigene compounds for therapeutic purposes. Among them, 5-(N-aminohexyl) carbamoyl-2'-deoxyuridine ((N)U) and 5-(N-aminohexyl) carbamoyl-2'-O-methyluridine ((N)Um) substituted oligonucleotides have higher resistance against nuclease degradation compared to native DNA. Furthermore, oligonucleotides containing (N)U stabilizes duplex formation with the complementary DNA. To elucidate the mechanisms behind these improved antigene properties, we synthesized and crystallized two Dickerson-Drew-type DNA duplexes containing (N)U and (N)Um. The 2'-O-methyl modification in (N)Um was found to induce the ribose ring to adopt the C3'-endo conformation. Electron density maps show possible interactions of the terminal ammonium ion of the aminohexyl groups with the phosphate oxygen anions.
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
305-6
pubmed:dateRevised
2007-9-19
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
X-ray analyses of DNA duplexes containing 5-(N-aminohexyl)carbamoyl modifications.
pubmed:affiliation
Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8501, Japan.
pubmed:publicationType
Journal Article