蛋白质和玻璃动力学的长寿命受激光子回波研究

D. Leeson, D. Wiersma
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引用次数: 0

摘要

蛋白质的动力学行为通常用构象亚态来解释一种蛋白质可以具有大量由构象屏障分隔的稍有不同的结构。这种观点与用两能级系统描述玻璃动力学非常相似。二能级系统(TLS)表示一组原子或分子,它们可以沿构象坐标驻留在两个势能阱中的任何一个中。在极低温度下,TLS可以通过隧穿过程在两个势能最小值之间波动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Long-Lived Stimulated Photon Echo Studies of Protein and Glass Dynamics
The dynamical behavior of proteins is often interpreted in terms of conformational substates.1 A protein can assume a large number of slightly different structures, separated by conformational barriers. This view is very similar to the description of glass dynamics in terms of two-level systems.2,3 A two-level system (TLS) represents a group of atoms or molecules which can reside in either of two potential energy wells along a conformational coordinate. At very low temperature the TLS can fluctuate between the two potential energy minima through a tunneling process.
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