The function of geometrical structure of B850 ring in bacterial photosynthetic antenna systems

Authors

  • Go Tei,

    Corresponding author
    1. Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka, 599-8531, Japan
    • Phone: +81 72 254 9268, Fax: +81 72 254 9268
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  • Masatoshi Nakatani,

    1. Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka, 599-8531, Japan
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  • Hajime Ishihara

    1. Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka, 599-8531, Japan
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Abstract

A series of simulations are made to investigate the function of characteristic ring-shaped structure of B850 ring in peripheral light harvesting complex (LH2) in typical purple photosynthetic bacteria. The results suggest that the geometrical structure of B850 ring positively functions to realize the high efficient excitation energy transfer (EET) in the photosynthetic antenna systems. It also shows the importance of geometrical structure of units in EET not only in photosynthetic systems but also any other systems containing randomness in distribution of units.

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