A striking periodicity of the cis/trans isomerization of proline imide bonds in cyclic disulfide-bridged peptides

被引:32
|
作者
Shi, T [1 ]
Spain, SM [1 ]
Rabenstein, DL [1 ]
机构
[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
关键词
disulfide peptides; isomerization; NMR spectroscopy; peptides; proline;
D O I
10.1002/anie.200503470
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Graph Presented) cis persists: The population of the cis conformation of the Cys-Pro imide bond of the cyclic disulfide form of peptides of the sequence Ac-Cys-Pro-(Xaa)m-Cys-NH2 (Xaa = Phe, Ala) ranges from 9.3 to 76.9% and shows a striking periodic dependence on the number of residues in the peptide. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1780 / 1783
页数:4
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