FIG. 1.

klf2 mRNA induction in J774A.1 cells by different gram-positive and gram-negative bacteria (detailed in Table 2). The Y. enterocolitica-elicited klf2 level was scaled to an arbitrary value of 10. Levels of klf2 mRNA were recorded relative to the HPRT housekeeping control. Error bars represent 1 standard deviation from the mean. Mock, uninfected cells. Horizontal brackets or asterisks indicate statistically significant (t test; P ≤ 0.05) differences in klf2 mRNA expression levels. (A) klf2 induction by different clinical isolates of Y. pseudotuberculosis. (B) klf2 induction by a collection of phylogenetically diverse bacteria.