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藻类天线系统是多种藻胆蛋白和连接蛋白巧妙构成的有机功能体 .目前藻类天线系统中多种藻胆蛋白高分辨晶体结构已获得测定 ,但这些结构只是来源于孤立态的藻胆蛋白 ,因而 ,藻胆蛋白复合物的研究是了解不同藻胆蛋白之间联系的有效途径 .鉴于目前实验方法的困难 ,利用计算机模拟方法研究了C 藻蓝蛋白复合物内能量传递过程 .计算结果显示出复合物内能量传递的主要途径和动态性质 ;同时通过系统内 2个C 藻蓝蛋白六聚体盘之间激发能传递随时间的分布 ,发现快速的激发能盘间传递过程 .根据时间分辨光谱对激发能传递时间的定义 ,当以零时刻理想δ脉冲光激发第 1个盘中的色团时 ,第 2个盘内激发能上升时间仅几个皮秒 ;第 3盘的激发能上升时间小于 2 0ps .这些结果第一次直观显示出盘间传递的快速过程 ,为完整藻类天线内进行的快速、高效的能量传递提供了合理的解释 .
Algae antenna system is a variety of phycobiliproteins and connectives ingenious organic function.At present, algae antenna system in a variety of high-resolution crystal structure of phycobiliproteins have been determined, but these structures are derived from isolated phycobiliproteins, Therefore, the phycobiliprotein complex is an effective way to understand the relationship between different phycobiliproteins.In view of the difficulty of the current experimental methods, the energy transfer process in the C phycocyanin complex was studied by computer simulation.The results show that The main ways and dynamic properties of energy transfer in the complex were studied.At the same time, the excitation energy transfer between the two C-phycocyanin hexamer disks in the system over time was found, For the definition of the excitation energy transfer time, when the chromophore in the first disc is excited by the ideal δ-pulse light at zero moment, the excitation energy in the second disc rises by a few picoseconds only; the excitation energy rise time of the third disc Less than 200 ps These results, for the first time, intuitively show the rapid process of plate-to-plate transfer, a fast and efficient energy transfer within a complete algae antenna It provides a reasonable explanation.