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Published on: July 6, 2016
Synthesis, hybridization and fluorescence properties of a 2'-C-pyrene-triazole modified arabino-uridine nucleotide
Pawan Kumar1, Pawan K Sharma2, Poul Nielsen1
1Nucleic Acid Center, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark.
Abstract:
A new pyrene-modified nucleotide monomer is introduced, wherein pyrene is attached to the 2'-position of arabino-uridine through a triazolemethyl linker. When the monomer is introduced into oligonucleotides, very stable DNA duplexes and three way junctions are obtained. An oligonucleotide featuring two modifications in the center shows four-fold increase in the intensity of the pyrene excimer signal on hybridization with an RNA target but not with a DNA target. The new nucleotide monomer has potential in DNA invader probes as well as in RNA targeting and detection.
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