This paper describes the synthesis and properties of a novel molecular beacon (MB) containing a benzene-phosphate backbone at its stem moiety. The fluorescence intensity of MBs was found to stabilize by the introduction of the benzene-phosphate backbone at its stem moiety. Furthermore, an MB containing the benzene-phosphate backbone was more resistant to DNase I (endonuclease) than an MB comprising natural DNA and 2′-O-methyl-RNA. These results indicate that the MB with the benzene-phosphate backbone is superior as a molecular beacon as compared to the MB composed of natural DNA and 2′-O-methyl-RNA.
本文描述了一种新型分子信标(MB)的合成及其性能,该分子信标的茎部分含有苯基
磷酸骨架。研究发现,随着苯基
磷酸骨架的引入,MB的荧光强度得到了稳定。此外,含有苯基
磷酸骨架的MB对DNase I(内切酶)的抗性强于由天然DNA和2′-O-甲基-RNA组成的MB。这些结果表明,含有苯基
磷酸骨架的MB相较于由天然DNA和2′-O-甲基-RNA组成的MB更具优势。