FIG. 1.

Effect of FPN on intracellular survival of Salmonella in J774 macrophages. J774-GFP.RV (G) or J774-FPN1.RV2 (F) cells were infected with Salmonella, and the number of intracellular bacteria surviving at 2 or 20 h postinfection was determined. Means (plus standard deviations; n = 3) from a single experiment are shown. The results are representative of four such experiments. The upper part of the figure shows FPN expression in the two J774 clones. The numbers below the Western blots show the relative intensities of the FPN bands based on densitometry (normalized to actin).