Sulfur K-edge X-ray absorption spectroscopy for determining the chemical speciation of sulfur in biological systems

被引：142

作者：

Pickering, TJ

Prince, RC

Divers, T

George, GN

机构：

[1] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA

[2] Exxon Res & Engn Co, Annandale, NJ 08801 USA

[3] Cornell Univ, Coll Vet Med, Ithaca, NY 14853 USA

来源：

FEBS LETTERS | 1998年 / 441卷 / 01期

关键词：

sulfur; X-ray absorption spectroscopy;

D O I：

10.1016/S0014-5793(98)01402-1

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：

Sulfur is an essential biological element, yet its biochemistry is only partially understood because there are so few tools for studying this element in biological systems. X-ray absorption spectroscopy provides a unique approach to determining the chemical speciation of sulfur in intact biological samples. Different biologically relevant sulfur compounds show distinctly different sulfur K-edge X-ray absorption spectra, and we show here, as an example, that this allows the deconvolution of the sulfur species in equine blood. (C) 1998 Federation of European Biochemical Societies.

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页码：11 / 14

页数：4

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