The bacterial SecY/E translocation complex forms channel-like structures similar to those of the eukaryotic Sec61p complex.

@article{Meyer1999TheBS,
  title={The bacterial SecY/E translocation complex forms channel-like structures similar to those of the eukaryotic Sec61p complex.},
  author={Troels Meyer and J F M{\'e}n{\'e}tret and Rainer Breitling and Katherine R. Miller and Christopher W Akey and Tom A Rapoport},
  journal={Journal of molecular biology},
  year={1999},
  volume={285 4},
  pages={1789-800}
}
The SecYEG complex is a major component of the protein translocation apparatus in the cytoplasmic membrane of bacteria. We have purified a translocationally active complex of the two subunits, SecY and SecE, from Bacillus subtilis. As demonstrated by electron microscopy, SecY/E forms ring structures in detergent solution and in intact lipid bilayers, often with a quasi-pentagonal appearance in projection. The particles represent oligomeric assemblies of the SecY/E complex and are similar to… CONTINUE READING

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