FIG 1.

PAL-FN-mediated host-pathogen interaction. (A) Plot showing CFU/well after incubation of A. baumannii in a well coated with FN protein or control protein (casein and BSA). (B) Images of bacterial CFU counting plates showing the interaction of A. baumannii with the differently coated proteins. (C) Bar showing the percent cell viabilities of A549 epithelial cell lines after infection with wild-type and pal mutant strains of A. baumannii in the presence of exogenous FN. (D) Image showing A549 epithelial cells under an inverted microscope with 5× magnification after infection with A. baumannii. Cell viability in noninfected A549 cell lines (control) was defined as 100%. All reported values in panels A and C are mean values of three experiments ± the SD, and the statistical significance was identified using GraphPad Prism software.