Design and synthesis of fluorescence-labeled nucleotide with a cleavable aryl-triazene linker for DNA sequencing by synthesis
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Updated: Jun 7, 2025

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
Published on: July 6, 2016
Bo-Wei Tang1,2, Ping-Yang Wang1,2, Yu-Mei Shen1
1Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China.
Abstract:
A novel acid-cleavable triazene linker was synthesized and then reacted with modified 2'-deoxyuridine triphosphate (dUTP), followed by Cy3 NHS ester, the final product serves as an excellent reversible terminator for DNA sequencing by synthesis (DNA SBS). The synthesized dye-labeled terminator incorporated into DNA strand faithfully in a DNA-elongation, and the fluorophore incorporated into DNA strands was cleaved completely under weak acidic conditions within short time. Further the first cleaved product can be incorporated with 100% efficiency for the second time. These preliminary evaluations show that the triazene reversible terminator has a great potential value in DNA sequencing.
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