A very stable cyclic DNA miniduplex with just two base pairs

被引:50
作者
El-Sagheer, Afaf H. [1 ]
Kumar, Ravindra [1 ]
Findlow, Stuart [2 ]
Werner, Joern M. [2 ]
Lane, Andrew N. [3 ]
Brown, Tom [1 ]
机构
[1] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England
[2] Univ Southampton, Sch Biol Sci, Southampton SO16 7PX, Hants, England
[3] Univ Louisville, James Graham Brown Canc Ctr, Louisville, KY 40202 USA
关键词
cyclic; DNA recognition; DNA structure; DNA; miniduplex;
D O I
10.1002/cbic.200700538
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
(Chemical Equation Presented) What goes around... Cyclic mini-DNA duplexes, as shown in the scheme, have been synthesized in high yield on the multimicromole scale by using click chemistry. These B-like duplexes are very stable and bind to drugs, such as distamycin A and 7-aminoactinomycin D. Circular dichroism indicates that the bases are stacked, and UV melting and NMR spectroscopy showed that the interbase hydrogen bonds are very stable, even in a dimer. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:50 / 52
页数:3
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