Influence of the carcinogen 4-aminobiphenyl on DNA conformation.

Influence of the carcinogen 4-aminobiphenyl on DNA conformation.
复制标题

致癌物 4-氨基联苯对 DNA 构象的影响。

DOI:
10.1093/carcin/6.5.719
复制
发表时间:
1985
期刊:
影响因子:
4.7
通讯作者:
Srinivasan,AR
Srinivasan,AR
中科院分区:
医学2区
文献类型:
--
作者:
Broyde,S;Hingerty,BE;Srinivasan,AR

文献摘要

参考文献

被引文献

相似文献

用最小半经验势能计算方法研究了致癌物4-氨基联苯修饰的脱氧核苷dCpdG的构象。显示了与A或B和Z螺旋相关的最重要的构象,以及从包含二聚体构象的计算机生成的模型中获得的致癌物修饰聚合物的结构。A-B型螺旋和Z型螺旋都有致癌物质堆积和碱基堆积的形式。在随机序列DNA中,最受欢迎的状态是将致癌物放置在A或B螺旋外部的大凹槽中,在那里它不会引起扭曲。在这种情况下,它可能会逃脱修复,直到一轮复制。在DNA展开的复制叉处,可能会出现低能量的致癌物-碱基堆积状态,这种状态主要通过围绕C5‘-05’键旋转很容易实现。可以预见这种构象导致的突变结果。
The conformation of the deoxydinucleoside monophosphate dCpdG modified by the carcinogen 4-aminobiphenyl has been elucidated by minimized semi-empirical potential energy calculations. The most important conformers relevant to A or B and Z helices are shown, and the structures of carcinogen-modified polymers, obtained from computer-generated models that incorporate the dimer conformations, are presented. Forms with carcinogen-hase stacking and with base-base stacking are found, for both A-B type heilces and Z-type helices. In random sequence DNA, the most favored state places the carcinogen at the A or B helix exterior, in the large groove, where it causes no distortion. In this position it might escape repair till a round of replication. At the replication fork, where the DNA is unwound, a low energy carcinogen-base stacked state, easily achieved by rotation primarily about the C5′-05′ bond, could occur. A mutagenic outcome resulting from this conformation might be envisioned.
DOI: 10.1093/ajcn/42.2.252
发表时间: 1985
期刊: The American journal of clinical nutrition
影响因子: --
作者:
Haynes,DC;Gershwin,ME;Golub,MS;Cheung,AT;Hurley,LS;Hendrickx,AG
通讯作者: Hendrickx,AG
青少年妊娠高血压/毒血症和其他生殖变量中的血浆锌。
DOI: 10.1093/ajcn/34.11.2367
发表时间: 1981
期刊: The American journal of clinical nutrition
影响因子: --
作者:
F. Cherry;E. A. Bennett;G. Bazzano;L. Johnson;G. Fosmire;H. Batson
通讯作者: H. Batson
DOI: 10.1093/jn/103.5.649
发表时间: 1973
期刊: The Journal of nutrition
影响因子: --
作者:
Lucille S. Hurley;P. B. Mutch
通讯作者: P. B. Mutch
DOI: 10.1093/ajcn/40.2.199
发表时间: 1984
期刊: The American journal of clinical nutrition
影响因子: --
作者:
Baly,DL;Golub,MS;Gershwin,ME;Hurley,LS
通讯作者: Hurley,LS
正常妊娠和小月妊娠的母体血清铜和锌浓度。
DOI: 10.1159/000299083
发表时间: 1984
影响因子: 2.1
作者:
P. Kiilholma;M. Grönroos;P. Liukko;P. Pakarinen;H. Hyörä;R. Erkkola
通讯作者: R. Erkkola