High-resolution structure of a β-peptide bundle

被引:171
作者
Daniels, Douglas S.
Petersson, E. James
Qiu, Jade X.
Schepartz, Alanna [1 ]
机构
[1] Yale Univ, Dept Chem & Mol, New Haven, CT 06520 USA
[2] Yale Univ, Dept Cellular & Dev Biol, New Haven, CT 06520 USA
关键词
D O I
10.1021/ja068678n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We recently reported that beta-peptides can form discrete hetero-oligomers in aqueous solution. Here we describe the structure of such an oligomer as determined by X-ray crystallography. The structure of Zwit-1F reveals a homo-octamer of two cupped "hands" composed of both parallel and antiparallel 3(14)-helices. The core of the assembly is composed entirely of solvent-excluded beta(3)-homoleucine residues. The Zwit-1F assembly shares many of the physical characteristics of natural proteins.
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页码:1532 / +
页数:3
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