| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Research Abstract |
The biological effects of DNA lesions depend on the their quantity and structure. In addition, the theoretical and some experimental studies suggest that the local multiplicity of DNA lesions also play an important role in determining biological effects. However, the experimental method to measure the multiplicity of DNA lesions remains to be established. In the present study, we developed a method to analyze the multiplicity of DNA lesions by direct observation of DNA. The base lesions were converted to abasic sites by DNA glycosylases. The resulting abasic sites were tagged with an aldehyde reactive probe followed by an antibody, and finally visualized by a scanning probe microscope.
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