Sequence specificity in aflatoxin B1--DNA interactions.
Sequence specificity in aflatoxin B1--DNA interactions.
复制标题
黄曲霉毒素 B1-DNA 相互作用的序列特异性。
DOI:
10.1073/pnas.80.1.6
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发表时间:
1983
影响因子:
11.1
通讯作者:
Humayun,MZ
中科院分区:
文献类型:
--
作者:
Muench,KF;Misra,RP;Humayun,MZ
The activated form of aflatoxin B1 (AFB1) causes covalent modification primarily of guanine residues, leading to alkali-labile sites in DNA. A simple extension of the Maxam-Gilbert procedure for sequence analysis permits the identification of alkali-labile sites induced by AFB1 and determination of the frequency of alkali-labile AFB1 modifications at particular sites on a DNA fragment of known sequence. Using this strategy, we have investigated the influence of flanking nucleotide sequences on AFB1 modification in a number of DNA fragments of known sequence. Our results show that certain guanine residues in double-stranded DNA are preferentially attacked by AFB1 over others in a manner predictable from a knowledge of vicinal nucleotide sequences. The observed in vitro sequence specificity is independent of a number of tested parameters and is likely to occur in vivo.
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DOI:
10.1016/s1874-6047(08)60344-3
发表时间:
1981
期刊:
The Enzymes
影响因子:
--
作者:
James C. Wang
通讯作者:
James C. Wang
影响因子:
4.4
作者:
Uberbacher,EC;Bunick,GJ
通讯作者:
Bunick,GJ
影响因子:
0.5
作者:
BANCHOFF, TF;WHITE, JH
通讯作者:
WHITE, JH
影响因子:
64.5
作者:
M. Shure;J. Vinograd
通讯作者:
J. Vinograd
影响因子:
5.6
作者:
HOROWITZ, DS;WANG, JC
通讯作者:
WANG, JC