Investigation of guanidine hydrochloride induced chlorophyll protein 43 and 47 denaturation in the terahertz frequency range

被引：0
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作者：
Chen, Hua [1 ]
Wang, Li [1 ]
Qu, Yuangang [2 ]
Kuang, Tingyun [2 ]
Li, Liangbi [2 ]
Peng, Weixian [3 ]
机构：
[1] Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
[2] Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
[3] College of Physics, Jilin University, Changchun 130023, China
来源：
Journal of Applied Physics | 2007年 / 102卷 / 07期
关键词：
In investigating guanidine (Gu)HCl-denatured chlorophyll protein 43 (CP43) and CP47 using the terahertz time-domain spectroscopy; we explored the feasibility and sensitivity of the terahertz technology in sensing protein denaturation and associated conformation changes. It was found that the conformation change was induced by the CO group of chlorophyll a; interacting with the N-H group of GuHCl to form hydrogen bonds. According to the fluorescence emission spectra of the CPs treated by GuHCl with different concentrations; we found that CP47 is more sensitive to GuHCl treatment than CP43. © 2007 American Institute of Physics;
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