A large increase in the melting temperature of complementary oligonucleotides was obtained through the conjugation of terpyridine ligands at their nearby 5′ or 3′ ends and the addition of stoichiometric amounts of various transition metals. We describe here a short efficient synthetic route for the conjugation of terpyridine moieties and report new data on the stabilizing contribution of metal-assisted hybridization of oligonucleotides through UV-monitored melting temperature experiments.Key words: oligonucleotides, metal complexes, terpyridine.
在互补寡核苷酸的 5′或 3′末端附近连接terpyridine配体,并添加一定量的各种过渡金属,可大幅提高互补寡核苷酸的熔化温度。我们在此描述了terpyridine分子共轭的简短高效合成路线,并通过紫外监测熔融温度实验报告了金属辅助杂交对寡核苷酸稳定作用的新数据。