FIG. 4.

Complementation of infA deletion cells by wild-type and mutant IF1 protein. The P1 phage was grown on NB223 containing the infA<>kan/infA⁺ duplication and transduced into W3110 cells transformed with either plasmid pINIII alone, pINIIIinfA, or pINIIIH34RinfA. Cells were plated onto LB plates containing kanamycin and were incubated at 37°C for 2 days.