Synthesis of Wavelength-Shifting Fluorescent DNA and RNA with Two Photostable Cyanine-Styryl Dyes as the Base Surrogate Pair
作者:Jeannine Steinmeyer、Franziska Rönicke、Ute Schepers、Hans-Achim Wagenknecht
DOI:10.1002/open.201700059
日期:2017.8
cyanine–styryl dyes and (S)‐3‐amino‐1,2‐propanediol as a substitute for the ribofuranoside, and incorporated as base‐pair surrogates by using automated phosphoramidte chemistry in the solid phase. The optical properties and, in particular, the energy‐transfer properties were screened in a range of DNA duplexes, in which the “counter bases” of the two dyes were varied and the distance between the two dyes was
两个核酸构建模块被合成,由两个耐光绿色和红色发光花青苯乙烯基染料和(的小号)-3-氨基1,2-丙二醇替代呋喃核糖苷,并通过在固相中使用自动化的磷酰胺化学方法作为碱基对替代物掺入。在一系列DNA双链体中筛选了光学性质,特别是能量传递性质,其中两种染料的“反碱基”变化,并且两种染料之间的距离扩大到最多三个居间的腺苷–胸苷对。具有最佳光学性能和最佳红色/绿色发射比的DNA双链体,其读出的腺苷和胸苷与染料相对,而两种染料彼此直接相邻,作为碱基替代对。可以将这种结构安排转移至RNA,以获得类似的荧光RNA探针。代表性地,