Effect of 1-alkanols on the native conformation of lysozyme

被引：5
|
作者：
Calandrini, V
Onori, G
Santucci, A
机构：
[1] Univ Perugia, Ist Fis Mat, Unita Perugia, I-06100 Perugia, Italy
[2] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2000年 / 2卷 / 18期
关键词：
D O I：
10.1039/b003746j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The technique of intensity photon correlation spectroscopy was utilised to investigate the native conformation of lysozyme in water-ethanol and water-tert-butanol mixtures as a function of alcohol concentration in the water-rich region of composition (cosolvent mole fraction x(2)< 0.08). A non-trivial behaviour of the hydrodynamic radius was obtained, characterised by a minimum at x(2)=0.02 in water-ethanol and x(2)=0.005 in water-tert-butanol mixtures. This behaviour is similar to that of the partial molar volume of 1-alkanols in water and reflects changes in alcohol-water structure. The results are discussed in connection with the effect of the alcohol in modulating solvent-mediated interactions.
引用
收藏
页码：4143 / 4146
页数：4
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