Isolation and purification of the reaction center (RC) and the core (RC-LH1) complex from Rhodobium marinum: the LH1 ring of the detergent-solubilized core complex contains 32 bacteriochlorophylls |
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Authors: | Qian P Yagura T Koyama Y Cogdell R J |
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Institution: | Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya, 662-8501 Japan. |
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Abstract: | The reaction center (RC) and the core (RC-LH1) complex were isolated and purified from Rhodobium marinum; together with the LH1 complex Meckenstock et al. (1992a) FEBS Lett. 311: 128], a complete set of RC, LH1 and RC-LH1 from the same wild-type strain of a purple photosynthetic bacterium can therefore now be made. Comparison of the BChl a/BPhe a ratio (determined by HPLC) between the RC and the RC-LH1 complexes lead us to the determination of the number of BChls in the LH1 ring to be 32.06+/-2.90, indicating that the LH1 ring from Rh. marinum consists of 16 alphabeta subunits. |
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