The hydrogen-bond configuration modulates the energy transfer efficiency in helical protein nanotubes
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发表刊物：NANOSCALE
摘要：Energy transport in proteins is critical to a variety of physical, chemical, and biological processes in living organisms. While strenuous efforts have been made to study vibrational energy transport in proteins, thermal transport processes across the most fundamental building blocks of proteins, i.e. helices, are not well understood. This work studies energy transport in a group of “isomer” helices. The π-helix is shown to have the highest thermal conductivity, 110% higher than that of the α-helix and 207% higher than that of the 310-helix. The H-bond connectivity is found to govern thermal transport mechanisms including the phonon spectral energy density, dispersion, mode-specific transport, group velocity, and relaxation time. The energy transport is strongly correlated with the H-bond strength which is also modulated by the H-bond connectivity. These fundamental insights provide a novel perspective for understanding energy transfer in proteins and guiding a rational molecule-level design of novel materials with configurable H-bonds.
第一作者：Jinlong He, Lin Zhang, Ling Liu*
论文类型：基础研究
论文编号：CA84BAC8587D4CFEAD864BA37A76C396
学科门类：工学
卷号：13
期号：2
页面范围：991-999
字数：8
是否译文：否
发表时间：2021-05-01
收录刊物：SCI
发表时间：2021-05-01