Time-resolved UV-vis spectroelectrochemical studies of the electron transfer process of cytochrome c

被引:8
作者
Wu, LL [1 ]
Huang, HG [1 ]
Li, JX [1 ]
Luo, J [1 ]
Lin, ZH [1 ]
机构
[1] Xiamen Univ, Inst Phys Chem, Dept Chem, State Key Lab Phys Chem Solid Surface, Xiamen 361005, Peoples R China
基金
中国国家自然科学基金;
关键词
cytochrome c; conformational rearrangement; electron transfer; in situ time-resolved UV-vis subtractive reflectance spectroscopy;
D O I
10.1016/S0013-4686(00)00362-5
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The present work used mainly electrochemical in situ time-resolved UV-vis subtractive reflectance spectroscopy to study the electron transfer process of cytochrome c in the presence of promoter (the equal molar mixture of guanine and cytosine). Two new absorption bands 450 and 500 nm acid two bipolar bands 250 and 300 nm are observed in the spectra with different time resolutions. In addition, the intensity of another band 420 nm changes with the time resolutions. All the results show that the electron transfer of cytochrome c is accompanied by significant conformational rearrangement. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2877 / 2881
页数:5
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