STRUCTURE OF A 1-1 COMPLEX BETWEEN L-ASP-L-PHE AND L-HIS-GLY

被引：8
|
作者：
GORBITZ, CH [1 ]
ETTER, MC [1 ]
机构：
[1] UNIV MINNESOTA,DEPT CHEM,MINNEAPOLIS,MN 55455
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1993年 / 49卷
关键词：
D O I：
10.1107/S010827019300246X
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Both molecules occur in slightly folded conformations, characterized by psi2 = -93.7-degrees in L-His-Gly and an unusual psi2 = 60.2 in L-ASp-L-Phe. The peptide linkage Of L-His-Gly displays a substantial deviation from planarity with omega1 = -163.5-degrees. The crystal packing is arranged in thick hydrophilic layers separated by hydrophobic sheets composed Of L-Phe aromatic side chains. There are numerous hydrogen bonds, including an extremely short contact [O...N = 2.532 (6) angstrom] between the ionized L-Asp and L-His side chains.
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页码：1673 / 1676
页数：4
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