Bulge??like Asymmetric Heterodye Clustering in DNA Duplex Results in Efficient Quenching of Background Emission Based on the Maximized Excitonic Interaction

…, Y Hara, T Osawa, H Kashida, X Liang…

Index: Fujii, Taiga; Hara, Yuichi; Osawa, Takuya; Kashida, Hiromu; Liang, Xingguo; Yoshida, Yasuko; Asanuma, Hiroyuki Chemistry - A European Journal, 2012 , vol. 18, # 35 p. 10865 - 10872

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Citation Number: 4

Abstract

Abstract Asymmetric dye clusters with a single fluorophore (Cy3) and multiple quenchers (4′-methylthioazobenzene-4-carboxylate, methyl red, and 4′-dimethylamino-2- nitroazobenzene-4-carboxylate) were prepared. The dye and one-to-five quenchers were tethered through D-threoninol to opposite strands of a DNA duplex. NMR analysis revealed that the clusters with a single fluorophore and two quenchers formed a sandwich-like ...