Study on the reaction of triple helix poly(A:2I) with Cu2+

被引：0
|
作者：
Hua, EB
Yang, P
Li, QS
Yang, BS
机构：
[1] NANJING UNIV,INST COORDINAT CHEM,STATE KEY LAB COORDINAT CHEM,NANJING 210008,PEOPLES R CHINA
[2] SHANXI UNIV,INST MOL SCI,TAIYUAN 030006,SHANXI,PEOPLES R CHINA
来源：
CHINESE JOURNAL OF CHEMISTRY | 1996年 / 14卷 / 04期
关键词：
poly(A:2I); CD; fluorescence probe; structural transformation;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of Cu2+ on the triple-stranded helical structure of poly(A:2I) was studied by means of circular dichroism spectral method with the help of ultraviolet spectral and ethidium bromide fluorescence probe methods. It was found that Cu2+ destabilizes the structure of the triple helix poly(A:SI) and induces its structural transformations, meanwhile, the transformations can be partially reversed by a higher NaCl concentration. The structural transformations may be expressed by the following scheme: poly(A:2I) --> poly(A:I) + poly(I) --> poly(A) + 2poly(I)
引用
收藏
页码：297 / 302
页数：6
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