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Updated: Mar 14, 2026

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
Published on: July 6, 2016
RNA fluorescence in situ hybridization using 3-cyanovinylcarbazole modified oligodeoxyribonucleotides as
Kenzo Fujimoto1, Kei Toyosato1, Shigetaka Nakamura1
1School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahi-dai, Nomi, Ishikawa 923-1292, Japan.
Abstract:
Photo-cross-linkable fluorescent oligodeoxyribonucleotides having 3-cyanovinylcarbazole nucleoside were applied to fluorescence in situ hybridization (FISH) based 16S rRNA detection in Escherichia coli cells. As the photo-cross-linked probe/rRNA hybrid was stable under the denaturing condition, decrease of the fluorescence signal through the washing process was prevented. The thermally irreversible hybridization property also enabled stable hybridization with the structured region on the target RNA, and facilitated design of the sequence for the FISH probe. Further development of the method might contribute to quantitative and stable FISH staining.
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