Study on the interaction between samarium ion and microperoxidase-11

被引：0
|
作者：
Li, X
Huang, XH
Jiang, HJ
Gao, Y
Lu, TH
Li, C [1 ]
机构：
[1] Nanjing Normal Univ, Coll Chem & Environm Sci, Nanjing 210097, Peoples R China
[2] Nanjing Med Univ, Coll Basic Med Sci, Nanjing 210097, Peoples R China
[3] Haerbin Normal Univ, Dept Chem, Harbin 150080, Peoples R China
[4] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2003年 / 19卷 / 05期
关键词：
microperoxidase-11; samarium ion; cyclic voltammogram;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The interaction between Sm3+ and MP-11 in the aqueous solution was investigated with cyclic voltammetry, UV-Vis absorption spectrum and circular dichroism. It was found for the first time that Sm3+ could bond to O of carboxyl group in the heme group altering the surface charge of MP-11 molecule and thus increasing its diffusion coefficient. In addition, the interaction between Sm3+ and MP-11 molecule would change the secondary structure of the MP-11 molecule increasing the exposure extent of the heme group in the MP-11 molecule. The above results could increase the reversibility of the electrochemical reaction of MP-11.
引用
收藏
页码：513 / 516
页数：4
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