Watson-Crick base-pairing properties of nucleic acid analogues with stereocontrolled a and torsion angles (α,β-D-CNAs)

被引:37
|
作者
Dupouy, Christelle [1 ]
Iche-Tarrat, Nathalie [1 ]
Durrieu, Marie-Pierre [1 ]
Rodriguez, Frederic [1 ]
Escudier, Jean-Marc [1 ]
Vigroux, Alain [1 ]
机构
[1] Univ Toulouse 3, CNRS, UMR 5068, Lab Synth & Physicochim Mol Interet Biol, F-31062 Toulouse 9, France
关键词
conformation analysis; DNA structures; helical structures; nucleic acids; oligonucleoticles;
D O I
10.1002/anie.200504475
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Constrained nucleic acids (α,β-D-CNAs) have an ethylene bridge that locks the α and β backbone torsion angles of DNA in the canonical (gauche(-),trans) conformation, as in B-form DNA (see picture), or in the noncanonical (gauche(+),trans) conformation. Canonical α,β-D-CNAs enhance the duplex-forming ability of oligonucleotides with complementary DNA, while noncanonical α,β-D-CNAs stabilize distorted B-DNA structures. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3623 / 3627
页数:5
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