5′-Porphyrin-oligonucleotide conjugates:: Neutral porphyrin-DNA interactions

被引:42
|
作者
Balaz, M [1 ]
Steinkruger, JD [1 ]
Ellestad, GA [1 ]
Berova, N [1 ]
机构
[1] Columbia Univ, Dept Chem, New York, NY 10027 USA
关键词
D O I
10.1021/ol0522992
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] Incorporation of hydrophilic tetraarylporphyrin phosphoramidites into the 5'-termimus of the DNA as well as noncharged porphyrin-DNA interactions have been studied. Porphyrin-modified oligonucleotides show lower melting temperatures than their unmodified analogues. Single-stranded DNA interacts more strongly with porphyrin and causes more intense chiral disturbance in the porphyrin environment than the corresponding double strand.
引用
收藏
页码:5613 / 5616
页数:4
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