Application of a Highly Robust and Efficient Fluorescence-Resonance-Energy-Transfer (FRET) System in DNA
作者:Lilia Clima、Caroline Hirtz-Haag、Andrea Kienzler、Willi Bannwarth
DOI:10.1002/hlca.200790107
日期:2007.6
feasibility study for the application of our newly developed highly efficient and robust fluorescence-resonance-energy-transfer (FRET) system to DNA. A 2′-oligodeoxynucleotide, 12, equipped with a quinolinone derivative as donor and a (bathophenanthroline)ruthenium(II) complex as acceptor and having a single uridine as potential cleavage site under basic conditions revealed an intensive FRET, which almost vanished
我们报告了将我们最新开发的高效,鲁棒的荧光共振能量转移(FRET)系统应用于DNA的可行性研究。甲2'-脱氧寡核苷酸,12,配备有作为供体和一个(红菲绕啉)钌(II)配合物作为受体和具有单个尿苷作为在碱性条件下的潜在切割位点的喹啉酮衍生物显示一个密集的FRET,裂解后几乎消失在碱性条件下的寡核苷酸(图7)。此外,在分子信标(MB)DNA的排列中(参见13),在与靶序列杂交后,观察到FRET显着降低(图9)。)。由于Ru络合物的荧光衰减时间长,该系统允许进行高灵敏度的时间门控测量。