Outer membrane protein profiles of Pc715j, Pc715jfptA::tp, and Pc715jorbA::tp. Ten micrograms of outer membrane preparations from cultures grown in CPS medium was electrophoresed on an SDS-10% PAGE gel and stained with Coomassie brilliant blue. Lanes 1 and 9, 150-, 100-, 75-, and 50-kDa molecular mass markers; lane 2, Pc715j in medium with no additions; lane 3, Pc715j in medium plus 10 μg of pyochelin per ml; lane 4, Pc715j in medium plus 50 μM FeCl3; lane 5, Pc715jorbA::tp in medium with no additions; lane 6, Pc715jorbA::tp in medium plus 50 μM FeCl3; lane 7, Pc715jfptA::tp in medium with no additions; lane 8, Pc715jfptA::tp in medium plus 50 μM FeCl3.