Various DNA conformational changes are in correlation with biological events. In particular, DNA B-Z equilibrium showed a high correlation with translation and transcription. In this study, we developed a DNA probe containing 5-trifluoromethylcytidine or 5-trifluoromethylthymidine to detect DNA B-Z equilibrium using F-NMR. Its probe enabled the quantitative detection of B-, Z-, and ss-DNA based onF-NMR chemical shift change.
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