期刊
ANALYST
卷 139, 期 9, 页码 2122-2126出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4an00016a
关键词
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资金
- A-Step from the Japan Science and Technology Agency [AS251Z03023P]
- Japan Society for the Promotion of Science [22501037]
- Grants-in-Aid for Scientific Research [22501037] Funding Source: KAKEN
DNA methylation is an epigenetic mechanism for transcriptional regulation. The methylation process controls cellular differentiation and is defective in many diseases including cancer. Therefore, the development of a simple method for analysing cytosine methylation in a target gene is required. Here we report a conceptually new method for sequence-selective chemical modification of a single cytosine in single-stranded DNA (ssDNA) using two DNA probes to form a DNA three-way junction with the ssDNA. The method was successfully used in a simple quantitative polymerase-chain-reaction-based assay for discrimination of a single methylated cytosine.
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