Different residues in periplasmic domains of the CcmC inner membrane protein of Pseudomonas fluorescens ATCC 17400 are critical for cytochrome c biogenesis and pyoverdine-mediated iron uptake.

Abstract excerpt

The inner membrane protein CcmC (CytA) of Pseudomonas fluorescens ATCC17400, which has homologues in several bacteria and plant mitochondria, is needed for the biogenesis of cytochrome c. A CcmC-deficient mutant is also compromised in the production and utilization of pyoverdine, the high-affinity fluorescent siderophore. A topological model for CcmC, based on the analysis of alkaline phosphatase fusions,...

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