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Citation: Shao Chun-Lin, JI Teng-Zhen-Hong, Yu Zeng-Liang. Relationship between the Constitutes of DNA Double Strand Breaks and Scavenging Capacity[J]. Acta Physico-Chimica Sinica, ;2000, 16(02): 184-187. doi: 10.3866/PKU.WHXB20000217 shu

Relationship between the Constitutes of DNA Double Strand Breaks and Scavenging Capacity

1.
Laboratory of lon Beam Bioengineering,Institute of Plasma Physics,the Chinese Academy of Science,Hefei 230031

Received Date: 24 March 1999
Available Online: 15 February 2000

Measured by gel electrophoresis scanning, it was shown that the double strand breaks (DSBs) of pBR322 irradiated by γ rays were constituted by two parts, αDSB and βDSB, and the relationship between α,β and scavenging capacity σ was obtained. Results showed that β/α non linearly decreased with increasing σ. Moreover, the yield of the OH free radicals reacting with DNA was analyzed.
- Irradiation,
- pBR322,
- Constitutes of DSB,
- Mannitol
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