Source:http://linkedlifedata.com/resource/pubmed/id/15783190
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
2005-3-23
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pubmed:abstractText |
The preparation and circular dichroic (CD) studies of self-complimentary 8-mer DNA sequences with a porphyrin at the 3' end are presented. Electronic interaction between the two porphyrins (the interchromophoric distance is in the range of 28-40 A), attached to both ends of the double-stranded helix, gives rise to a long-range exciton-coupled CD in the visible region (400-450 nm). The porphyrin chromophores act as sensitive probes of geometrical changes in the DNA backbone and sensitively reflect the double-strand to single-strand transition. This study demonstrates the possibility of using exciton-coupled porphyrin CDs for conformational studies of DNA.
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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 |
Mar
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pubmed:issn |
0002-7863
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
127
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
4172-3
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading | |
pubmed:year |
2005
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pubmed:articleTitle |
Synthesis and circular dichroism of tetraarylporphyrin-oligonucleotide conjugates.
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pubmed:affiliation |
Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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