Evolution of photosystem I - from symmetry through pseudo-symmetry to asymmetry.

@article{BenShem2004EvolutionOP,
  title={Evolution of photosystem I - from symmetry through pseudo-symmetry to asymmetry.},
  author={Adam Ben-Shem and Felix Frolow and Nathan Alfred Nelson},
  journal={FEBS letters},
  year={2004},
  volume={564 3},
  pages={274-80}
}
The evolution of photosystem (PS) I was probably initiated by the formation of a homodimeric reaction center similar to the one currently present in green bacteria. Gene duplication has generated a heterodimeric reaction center that subsequently evolved to the PSI present in cyanobacteria, algae and plant chloroplasts. During the evolution of PSI several attempts to maximize the efficiency of light harvesting took place in the various organisms. In the Chlorobiaceae, chlorosomes and FMO were… CONTINUE READING
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