An object of the present invention is to provide an insulator which can suppress quenching between fluorescent dyes and enhance fluorescence intensity. The present invention provides, in order to achieve this object, an insulator which contains a ring entity of nonplanar structure and suppresses reduction in fluorescence intensity of one or two or more fluorescent labels adjacent to the insulator.
Insulator Base Pairs for Lighting-up Perylenediimide in a DNA Duplex
作者:Hiromu Kashida、Koji Sekiguchi、Hiroyuki Asanuma
DOI:10.1002/chem.201001638
日期:——
Quenched: Perylenediimide (PDI) is highly quenched by nucleobases, which greatly restricts its application as a fluorescent probe. Here, we propose “insulatorbasepairs” tethering cyclohexane ring through D‐threoninol. When “insulatorbasepairs” were inserted between PDI and nucleobases, the quantum yield of PDI drastically increased several thousand‐fold. The “insulatorbasepairs” reported here