Abstract

Abstract We report the fluorescence properties of oligodeoxynucleotides (ODNs) containing a base-discriminating fluorescent nucleoside, benzopyridopyrimidine (BPP), in hybridizing with RNAs possessing different bases opposite BPP. BPP-containing ODN selectively exhibited a strong fluorescence when the RNA base opposite BPP was A, whereas the fluorescence of BPP-containing ODN hybridized with RNA possessing G opposite BPP was very weak. BPP acts as a good base-discriminating fluorescent nucleoside for A/G single base alteration of RNA.

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