In situ molecular level studies on membrane related peptides and proteins in real time using sum frequency generation vibrational spectroscopy.

In situ molecular level studies on membrane related peptides and proteins in real time using sum frequency generation vibrational spectroscopy.
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DOI:
10.1016/j.jsb.2009.03.006
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发表时间:
2009-10
影响因子:
3
通讯作者:
Chen, Zhan
Chen, Zhan
中科院分区:
生物学3区
文献类型:
--
作者:
Ye, Shuji;Nguyen, Khoi Tan;Le Clair, Stephanie V.;Chen, Zhan

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和频振动光谱技术是研究不同化学环境中表面和界面分子结构的有力手段。本文综述了近年来在杂化双层膜、基底支持的脂单/双层膜、肽/蛋白质与脂单/双层膜之间的相互作用以及肽/蛋白质诱导的双层膜扰动等方面的SFG研究进展。为了证明SFG的能力,以确定各种二级结构的方向,不同的肽/蛋白质(蜂毒肽,G蛋白,almethicin,鲎素I)和脂质双层之间的相互作用的研究进行了讨论。SFG在这些研究中揭示的分子水平细节表明,SFG可以在真实的时间、原位和没有任何外源标记的情况下提供对脂质单层/双层与肽/蛋白质之间的相互作用的独特理解。
Sum frequency generation (SFG) vibrational spectroscopy has been demonstrated to be a powerful technique to study the molecular structures of surfaces and interfaces in different chemical environments. This review summarizes recent SFG studies on hybrid bilayer membranes and substrate-supported lipid monolayers and bilayers, the interaction between peptides/proteins and lipid monolayers/bilayers, and bilayer perturbation induced by peptides/proteins. To demonstrate the ability of SFG to determine the orientations of various secondary structures, studies on the interaction between different peptides/proteins (melittin, G proteins, almethicin, and tachyplesin I) and lipid bilayers are discussed. Molecular level details revealed by SFG in these studies show that SFG can provide a unique understanding on the interactions between a lipid monolayer/bilayer and peptides/proteins in real time, in situ and without any exogenous labeling.
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