申请人:Hirao Ichiro
公开号:US08895712B2
公开(公告)日:2014-11-25
The present invention provides a double-stranded nucleic acid in which at least one nucleic acid strand includes an unnatural base that forms a self-complementary base pair or an unnatural base that forms a base pair with any natural base with substantially the same thermal stability. The present invention also provides a method of hybridizing a first nucleic acid strand with a second nucleic acid strand, wherein the first nucleic acid strand includes an unnatural base that forms a self-complementary base pair or an unnatural base that forms a base pair with any natural base with substantially the same thermal stability, and a method of applying the nucleic acid to SNP detection, a DNA chip, DNA/RNA computing, or an in vitro translation system. The present invention provides a method of introducing an unnatural base into a nucleic acid strand and thereby controlling the thermodynamic stability in hybridization of the nucleic acid strand.
本发明提供一种双链核酸,其中至少一个核酸链包含一种形成自补碱基对的非天然碱基或一种与任何天然碱基形成具有相同热稳定性的碱基对的非天然碱基。本发明还提供了一种将第一核酸链与第二核酸链杂交的方法,其中第一核酸链包括一种形成自补碱基对的非天然碱基或一种与任何天然碱基形成具有相同热稳定性的碱基对的非天然碱基,并提供了将该核酸应用于SNP检测、DNA芯片、DNA/RNA计算或体外翻译系统的方法。本发明提供了一种将非天然碱基引入核酸链中,从而控制核酸链杂交的热力学稳定性的方法。