论文标题
通过十分位屏障对三脊台孤子的量子隧穿
Quantum tunneling of three-spine solitons through excentric barriers
论文作者
论文摘要
大分子蛋白复合物催化维持生命的基本生理过程。蛋白质亚基之间的各种相互作用可能会增加某些肽基团的有效质量，从而将蛋白质$α$螺旋分裂。在这里，我们研究了应用巨大屏障对蛋白质中孤子辅助能量转运的差异影响。我们证明，将其定位在蛋白质$α$ -HELIX中的单个脊柱上的十分位屏障，反射或捕获三脊台孤子，就像具有可比总质量的同心屏障一样有效。此外，能量较低的较宽的蛋白质孤子需要较重的巨大屏障才能进行孤子反射或捕获。因此，可以通过控制孤子宽度或蛋白质亚基的有效质量来实现蛋白质活性位点能量传输，递送和利用的调节。
Macromolecular protein complexes catalyze essential physiological processes that sustain life. Various interactions between protein subunits could increase the effective mass of certain peptide groups, thereby compartmentalizing protein $α$-helices. Here, we study the differential effects of applied massive barriers upon the soliton-assisted energy transport within proteins. We demonstrate that excentric barriers, localized onto a single spine in the protein $α$-helix, reflect or trap three-spine solitons as effectively as concentric barriers with comparable total mass. Furthermore, wider protein solitons, whose energy is lower, require heavier massive barriers for soliton reflection or trapping. Regulation of energy transport, delivery and utilization at protein active sites could thus be achieved through control of the soliton width, or of the effective mass of the protein subunits.
