PEPTIDE LANTHANIDE INTERACTIONS - CRYSTAL-STRUCTURE OF A EUROPIUM(III)-TRIGLYCINE COMPLEX

被引：0

作者：

APARNA, K

BALARAM, P

KRISHNAMURTHY, SS

NETHAJI, M

机构：

[1] INDIAN INST SCI,DEPT INORGAN & PHYS CHEM,BANGALORE 560012,KARNATAKA,INDIA

[2] INDIAN INST SCI,MOLEC BIOPHYS UNIT,BANGALORE 560012,KARNATAKA,INDIA

来源：

INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH | 1994年 / 43卷 / 01期

关键词：

CRYSTAL STRUCTURE; EUROPIUM PEPTIDE COMPLEX; GLYCYLGLYCYLGLYCINE; PEPTIDE CONFORMATION; PEPTIDE-METAL INTERACTIONS;

D O I：

暂无

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Crystals of Eu-(Gly-Gly-Gly).(H2O)5.(ClO4)3 are triclinic, spacegroup P1BAR with a = 9.123 (2), b = 11.185 (5), c = 11.426 (2) angstrom; alpha = 90.79 (2), beta = 98.08 (1), gamma = 98.57 (2)-degrees; Z = 2. The europium cation is surrounded by four oxygens from three different peptide units and four oxygens from water molecules. The geometry around the metal is a distorted bi-capped trigonal prism. The peptide backbone conformation in this complex is compared with those in the free peptide and in various metal complexes. Considerable differences are observed between Eu(III) and Ca(II) complexes of triglycine. (C) Munksgaard 1994.

引用

页码：19 / 22

页数：4

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