Bacterial outer membrane secretin PulD assembles and inserts into the inner membrane in the absence of its pilotin.

@article{Guilvout2006BacterialOM,
  title={Bacterial outer membrane secretin PulD assembles and inserts into the inner membrane in the absence of its pilotin.},
  author={Ingrid Guilvout and Mohamed Chami and Andreas Engel and Anthony P. Pugsley and Nicolas Bayan},
  journal={The EMBO journal},
  year={2006},
  volume={25 22},
  pages={5241-9}
}
Dodecamerization and insertion of the outer membrane secretin PulD is entirely determined by the C-terminal half of the polypeptide (PulD-CS). In the absence of its cognate chaperone PulS, PulD-CS and PulD mislocalize to the inner membrane, from which they are extractable with detergents but not urea. Electron microscopy of PulD-CS purified from the inner membrane revealed apparently normal dodecameric complexes. Electron microscopy of PulD-CS and PulD in inner membrane vesicles revealed… CONTINUE READING
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