Interaction of (+/-)-7r,8t-dihydroxy-9t,10t-epoxy-7,8,9,10-tetrahydrobenzo(a)pyrene with relaxed circular pBR322 DNA.
Interaction of (+/-)-7r,8t-dihydroxy-9t,10t-epoxy-7,8,9,10-tetrahydrobenzo(a)pyrene with relaxed circular pBR322 DNA.
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(l-)-7r,8t-二羟基-9t,10t-环氧-7,8,9,10-四氢苯并(a)芘与松弛的环状pBR322 DNA 的相互作用。
DOI:
10.1016/0006-291x(83)91587-5
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发表时间:
1983
影响因子:
3.1
通讯作者:
Yang,NC
中科院分区:
文献类型:
--
作者:
Agarwal,KL;Hrinyo,TP;Yang,NC
The interaction of (±)-BPDE (1) with DNA at neutral pH was investigated by the application of relaxed circular pBR322 DNA,(±)-BPDE causes a rapid positive supercoiling of this DNA followed by a slower spontaneous relaxation. The results indicate that there are two clearly discernable types of chemical interactions between 1 and DNA, a rapid intercalative covalent binding and a slower strand breakage. The implications of these findings are discussed.
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