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Growth curves of wild-type and ΔcasC R. jostii RHA1 strains on cholate. Cells of wild-type R. jostii RHA1 (open squares), the wild type containing plasmid pTIPQC1 (triangles), the ΔcasC mutant (circles), and a ΔcasC strain containing the casC gene in plasmid pTIPQC1-His (solid squares) were grown in mineral medium supplemented with 1 mM cholate at 30°C. Growth curves represent the averages of two independent experiments with similar results.
