Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
1992-8-17
pubmed:abstractText
We have investigated the conformations of the hexadeoxyribonucleotide, L-d(CGCGCG) composed of L-deoxyribose, the mirror image molecule of natural D-deoxyribose. In this paper, we report the synthesis of four L-deoxynucleosides and the L-oligonucleotide-ethidium bromide interactions. The L-deoxyribose synthon 9 was synthesized from L-arabinose with an over all yield of 28.5% via the Barton-McCombie reaction. The L-deoxynucleosides were obtained by a glycosylation of appropriate nucleobase derivatives with the 1-chloro sugar 9. After derivatization to nucleoside phosphoramidites, L-deoxycytidine and L-deoxyguanosine were incorporated into a hexadeoxynucleotide, L-d(CGCGCG) by a solid-phase beta-cyanoethylphosphoramidite method. This L-hexanucleotide was resistant to digestion with nuclease P1. The conformations of L-d(CGCGCG) were an exact mirror image of that of the corresponding natural one as described previously, and the conformations of the L-d(CGCGCG)-ethidium bromide complex were also the mirror images of those of the D-d(CGCGCG)-ethidium bromide complex under both low and high salt conditions. These results suggest that ethidium bromide prefers not a right-handed helical sense, but the base-base stacking geometry of the B-form rather than that of the Z-form. Thus, L-DNA would be a useful tool for studying DNA-drug interactions.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-1068447, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-1651474, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-2018503, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-2173569, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-2374710, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-3822812, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-4509343, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-5069391, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-5416936, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-5888583, http://linkedlifedata.com/resource/pubmed/commentcorrection/1630904-6547529
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0305-1048
pubmed:author
pubmed:issnType
Print
pubmed:day
11
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3325-32
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Synthesis and properties of mirror-image DNA.
pubmed:affiliation
Osaka University of Pharmaceutical Sciences, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't