S22-013 Functional and Structural Cooperativity in Photosystem II. Revisiting the ‘CF model (1991)’ in the frame of the new ‘PSII dimer structures’
نویسنده
چکیده
Oxygen evolution (OE) by photosystem II (PSII) is dependent on the lipid/PSII molar ratio of the PSII membrane. To explain the data, a lipid-mediated ‘cooperative function of PSII units’ (CF model) was postulated (Fragata, Strzalka, Nénonéné, 1991). According to the CF model, the OE enhancement has its origin in the formation of PSII aggregates at the optimum lipid/PSII molar ratio, or near. The size of the aggregates in the CF model have likely their counterpart in the PSII units arranged as dimers identified recently (e.g., Barber et al., 1999; Zouni et al., 2001).
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