stable DNA duplexes and three way junctions are obtained. An oligonucleotide featuring two modifications in the center shows four-fold increase in the intensity of the pyrene excimer signal on hybridization with an RNA target but not with a DNA target. The new nucleotide monomer has potential in DNA invader probes as well as in RNA targeting and detection.
引入了一种新的modified修饰的核苷酸单体,其中pyr通过三唑甲基接头连接到阿拉伯
尿苷的2'-位。将单体引入寡核苷酸后,可获得非常稳定的DNA双链体和三向连接。在中心具有两个修饰的寡核苷酸在与RNA靶标而非与DNA靶标杂交时,the受激准分子信号的强度增加了四倍。这种新的核苷酸单体在DNA入侵者探针以及RNA靶向和检测中具有潜力。