Real-time detection of protein-water dynamics upon protein folding by terahertz absorption spectroscopy

被引:121
作者
Kim, Seting Joong
Born, Benjamin [3 ]
Havenith, Martina [3 ]
Gruebele, Martin [1 ,2 ]
机构
[1] Univ Illinois, Dept Chem Phys, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Biophys & Computat Biol, Urbana, IL 61801 USA
[3] Ruhr Univ Bochum, Lehrstuhl Phys Chem 2, D-44780 Bochum, Germany
关键词
circular dichroism; fluorescence; protein folding; secondary structure; terahertz spectroscopy;
D O I
10.1002/anie.200802281
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Take a look around: Kinetic terahertz absorption (KITA) spectroscopy has been used to monitor the attenuation and phase shift of a terahertz electric field transmitted through a protein during refolding. Comparison with data from fluorescence, circular dichroism, and small angle X-ray scattering shows that KITA monitors rearrangements of the hydration water-protein interactions during early collapse and secondary structure formation. (Figure Presented). © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:6486 / 6489
页数:4
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