Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia.
Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia.
Comput Biol Chem. 2018 Feb;72:105-112. doi: 10.1016/j.compbiolchem.2017.12.006. Epub 2017 Dec 13.
The photosynthetic complex CP26, one of the minor antennae of the photosystem II, plays an important role in regulation of the excitation energy transfer in the PSII. Due to instability during isolation and purification, it remained poorly studied from the viewpoint of theoretical chemistry because of the absence of X-ray crystallography data. In this work, using the recently determined three-dimensional structure of the complex we apply the quantum chemical approach to study the properties of exciton states in it. Spectral properties, structure of exciton states and roles of the pigments in the complex and photosystem II are discussed.
CP26 光合复合物是光系统 II 中次要天线之一，在调节 PSII 中的激发能量转移方面发挥着重要作用。由于在分离和纯化过程中的不稳定性，由于缺乏 X 射线晶体学数据，从理论化学的角度来看，该复合物的研究仍不完善。在这项工作中，我们使用最近确定的复合物的三维结构，应用量子化学方法来研究其中激子态的性质。讨论了复合物和光系统 II 中的光谱性质、激子态结构以及色素的作用。
