The present invention relates to a method for nucleic acid replication and novel artificial base pairs.
The method of the present invention for nucleic acid replication is characterized in that a deoxyribonucleoside 5′-triphosphate, in which the hydroxyl group of phosphoric acid at the γ-position is substituted with a group selected from the group consisting of an amino group, a methylamino group, a dimethylamino group, a mercapto group and a fluoro group, is used as a substrate during replication reaction. The novel artificial base pairs of the present invention are characterized in that 7-(2-thienyl)-imidazo[4,5-b]pyridine (Ds) or an analog thereof forms a base pair with pyrrole-2-carbaldehyde (Pa) or an analog thereof.
本发明涉及一种核酸复制方法和新型人工碱基对。本发明的核酸复制方法的特征在于,在复制反应过程中使用一种脱氧核苷酸5'-
三磷酸作为底物,其中
磷酸γ-位置的羟基被从以下群组中选择的一种群组所取代,所述群组包括
氨基、甲基
氨基、二甲基
氨基、巯基和
氟基。本发明的新型人工碱基对的特征在于,7-(2-
噻吩基)-
咪唑并[4,5-b]
吡啶(Ds)或其类似物与
吡咯-2-甲醛(Pa)或其类似物形成一对碱基。