DNA with hydrophobic base substitutes: A stable, zipperlike recognition motif based on interstrand-stacking interactions

被引:83
作者
Brotschi, C [1 ]
Leumann, CJ [1 ]
机构
[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
关键词
biaryls; bioorganic chemistry; DNA recognition; hydrophobic effect; nucleosides;
D O I
10.1002/anie.200250516
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Back to basis: Short DNA duplexes can be packed with at least four hydrophobic, not-hydrogen-bonding biphenyl base pairs in the center of the sequence without compromising stability. Recognition of Bph occurrs by interstrand-stacking interactions as illustrated (X=biphenyl or bipyridyl). This new zipperlike recognition motif opens exciting possibilities for the introduction of new function into double-helical recognition systems based on the DNA backbone.
引用
收藏
页码:1655 / 1658
页数:4
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