Related Experiment Video
Updated: Jul 18, 2026

Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay (EMSA) and DNA-affinity Precipitation Assay (DAPA)
Published on: August 21, 2016
SNPs analysis by use of protected oligonucleotide probes
Akihiro Ohkubo1, Rintarou Kasuya, Kazushi Sakamoto
1Department of Life Science, Tokyo Institute of Technology, 4259 Nagatsuta, Midoriku, Yokohama, 226-8501, Japan.
Abstract:
Loss of large amounts of DNA probe occurred at the deprotection step of the in situ synthesis of DNA microarrays for analysis of SNPs or gene expression. In this study, we developed "Protected Oligonucleotide Probes" that can avoid elimination of probe DNAs and allow their highly efficient synthesis. The protected oligonucleotide probes containing dC(ac) and d[oxoA(ac)] instead of dC and dA proved to have similar affinity for ssDNA having the complementary sequence and base recognition ability compared with the corresponding unmodified DNA probes.
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