A rationally designed novel receptor for probing cooperative interaction between metal ions and bivalent tryptophan side chain in solution

被引：55

作者：

Li, YT ^{[1
]}

Yang, CM ^{[1
]}

机构：

[1] Nankai Univ, Tianjin 300071, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2003年 / 23期

关键词：

D O I：

10.1039/b310543a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cooperative interactions between metal ions and bivalent tryptophan side chain are identified in water by fluorescence quenching of a designed novel receptor, EDTA- bis( L-tryptophan methyl ester), supplemented by a circular dichroism study; results revealed that the receptor is capable of distinguishing a variety of metal ions on the basis of their abilities in quenching tryptophan fluorescence and the relative magnitude of these interactions is Cu2+ similar to Fe2+ >> Co2+ > Ni2+ >> Mn2+ > Zn2+ > La3+ > Al3+.

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页码：2884 / 2885

页数：2

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