Supramolecular complex of cytochrome c with a polyanionic β-cyclodextrin

被引：24
|
作者：
Kano, Koji [1 ]
Ishida, Yoshiyuki [1 ]
机构：
[1] Doshisha Univ, Dept Mol Sci & Technol, Kyoto 6100321, Japan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 05期
关键词：
cycloclextrins; cytochrome c; electrostatic interactions; protein modifications; supramolecular chemistry;
D O I：
10.1002/anie.200603471
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A threesome: An anionic cyclodextrin binds electrostatically with cationic cytochromec (K = 2.3 × 104 M-1, ΔH = 9.3 kJ mol-1, ΔS = 115 J mol-1 K-1). The cyclodextrin covers the hemin pockets of about two-thirds of the cyt c molecules. This association complex further complexes with a nonionic porphyrin to form a ternary complex in which static fluorescence quenching of the porphyrin by cyt c takes place. (Figure Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码：727 / 730
页数：4
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