Application of 57Co emission Mossbauer spectroscopy to studying biocomplexes in frozen solutions

被引：4

作者：

Kamnev, A. A. ^{[1
]}

Kulikov, L. A.

Perfiliev, Yu. D.

Antonyuk, L. P.

Kuzmann, E.

Vertes, A.

机构：

[1] Russian Acad Sci, Lab Biochem Plant Bacterial Symbioses, Inst Biochem & Physiol Plants & Microorganisms, Saratov 410049, Russia

[2] Moscow MV Lomonosov State Univ, Fac Chem, Dept Radiochem, Lab Nucl Chem Tech, Moscow 119992, Russia

[3] Hungarian Acad Sci, Res Grp Nucl Tech Struct Chem, Dept Nucl Chem, Budapest 112, Hungary

来源：

HYPERFINE INTERACTIONS | 2005年 / 165卷 / 1-4期

关键词：

cobalt(II) complexes; frozen aqueous solutions; anthranilic acid; L-tryptophan; metalloenzymes; after-effects; Co-57 emission Mossbauer spectroscopy;

D O I：

10.1007/s10751-006-9282-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Emission Mossbauer spectroscopy with the Co-57 isotope was used to study very dilute rapidly frozen aqueous solutions of cobalt(II) complexes with low-molecular-weight biomolecules (aromatic amino acids - anthranilic acid and L-tryptophan) and within a sophisticated biopolymer, bacterial glutamine synthetase, a key enzyme of nitrogen metabolism. The appearance of after-effects of the Co-57 ->(57) Fe nuclear transformation as well as the coordination properties of the cation and the ligands in the complexes are discussed on the basis of their Mossbauer parameters.

引用

页码：303 / 308

页数：6

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