Stable and Selective Antiparallel Type Triplex DNA Formation by Targeting a GC Base Pair with the TFO Containing One <i>N</i><sup>2</sup>-Phenyl-2′-deoxyguanosine
作者:Yosuke Taniguchi、Mei Miyazaki、Nozomu Matsueda、Lei Wang、Hidenori Okamura、Shigeki Sasaki
DOI:10.1248/cpb.c18-00043
日期:2018.6.1
osine (PhdG) showed a stable and selective triplex DNA formation with the GC base pair as compared to the natural dG/GC triplet. However, the multiple incorporation of PhdG into the TFOs hampered the stable triplex DNA, instead, showed a tendency to form a higher order structure. Therefore, we concluded that the stable and selective triplex DNA formation is expected by the replacement of dG by PhdG
反平行三链体DNA是由富含嘌呤的三链体形成寡核苷酸(TFO)与双链体DNA中的同嘌呤区之间的相互作用形成的。这种具有基因组DNA的结构的形成有望控制活细胞中的基因表达。在这项研究中,为了增强三链DNA的稳定性,我们设计了N2-芳基化的脱氧鸟苷衍生物。在这些类似物中,我们发现与天然dG / GC三联体相比,含有N2-苯基-2'-脱氧鸟苷(PhdG)的TFO具有稳定的,选择性的三联DNA形成,并带有GC碱基对。但是,将PhdG多次掺入TFO阻碍了稳定的三链DNA,相反,它倾向于形成更高阶的结构。所以,