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Updated: Mar 16, 2026

Split Hybridization Probe Utilizing a DNA Fluorescent Light-up Aptamer as a Signal Reporter for Sequence-Specific Nucleic Acid Analysis
Published on: July 8, 2025
Fluorescence detection of single-nucleotide differences using aptamer-forming binary DNA probes
Saori Kamoto1, Masumi Hyuga1, Teru Kato1
1Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan. kato@stf.teu.ac.jp.
Abstract:
We report a simple method for fluorescence detection of single-nucleotide alterations in a long target DNA, which is based on the formation of a three-way-junction-structured cholic-acid-binding DNA aptamer by the hybridization of the target with binary DNA probes. The new method was successfully exploited for SNP genotyping of human CYP2C19 gene.
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