Anion recognition using a simple cyclic peptide

被引：5
|
作者：
Sergeant, Genevieve E. [1 ]
Jolliffe, Katrina A. [1 ]
机构：
[1] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia
来源：
SUPRAMOLECULAR CHEMISTRY | 2020年 / 32卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
Cyclic peptide; anion recognition; sulphate; BINDING;
D O I：
10.1080/10610278.2020.1732377
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The head-to-tail cyclic hexapeptide, [cyclo(Val-Thr)(3)], was found to bind to a range of anions in DMSO-d(6) with higher affinity for tetrahedral oxo-anions than halides. H-1 NMR spectroscopy indicated that anion binding results in an overall change in peptide conformation with the binding of both sulphate and selenate leading to similar peptide conformations. In the more competitive solvent mixture of 2:8 v/v H2O/DMSO-d(6) this cyclic peptide displayed five-fold stronger binding to sulphate than to selenate.
引用
收藏
页码：233 / 237
页数：5
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