A cell biological view of the siderophore pyochelin iron uptake pathway in Pseudomonas aeruginosa.

@article{Cunrath2015ACB,
  title={A cell biological view of the siderophore pyochelin iron uptake pathway in Pseudomonas aeruginosa.},
  author={Olivier Cunrath and V{\'e}ronique Gasser and Françoise Hoegy and Cornelia Reimmann and Laurent Guillon and Isabelle J Schalk},
  journal={Environmental microbiology},
  year={2015},
  volume={17 1},
  pages={
          171-85
        }
}
Pyochelin (PCH) is a siderophore produced and secreted by Pseudomonas aeruginosa for iron capture. Using (55) Fe uptake and binding assays, we showed that PCH-Fe uptake in P. aeruginosa involves, in addition to the highly studied outer membrane transporter FptA, the inner membrane permease FptX, which recognizes PCH-(55) Fe with an affinity of 0.6 ± 0.2 nM and transports the ferri-siderophore complex from the periplasm into the cytoplasm: fptX deletion inhibited (55) Fe accumulation in the… CONTINUE READING
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