FpvA-mediated ferric pyoverdine uptake in Pseudomonas aeruginosa: identification of aromatic residues in FpvA implicated in ferric pyoverdine binding and transport.

نویسندگان

  • Jiang-Sheng Shen
  • Valérie Geoffroy
  • Shadi Neshat
  • Zongchao Jia
  • Allison Meldrum
  • Jean-Marie Meyer
  • Keith Poole
چکیده

A number of aromatic residues were seen to cluster in the upper portion of the three-dimensional structure of the FpvA ferric pyoverdine receptor of Pseudomonas aeruginosa, reminiscent of the aromatic binding pocket for ferrichrome in the FhuA receptor of Escherichia coli. Alanine substitutions in three of these, W362, W391, and F795, markedly compromised ferric pyoverdine binding and transport, consistent with a role of FpvA in ferric pyoverdine recognition.

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عنوان ژورنال:
  • Journal of bacteriology

دوره 187 24  شماره 

صفحات  -

تاریخ انتشار 2005