Action of rBbCI, rBbKI, and EcTI on cell adhesion of L929 cells. (A) Increasing concentrations of L929 were added to the 24-well plates previously coated with fibronectin and analyzed after 2 h of incubation. (B) 1 × 106 L929 cells were added to 24-well plates previously coated with fibronectin and analyzed at different incubation periods (2, 3, 4, 5 h). (C) L929 cells and increasing concentrations of rBbCI, rBbKI, and EcTI were pre-incubated for 15 min at room temperature and added to 24-well plates previously coated with fibronectin. Each bar represents the mean ± standard deviations of three repetitions. (* p < 0.05, ** p < 0.005; One way-ANOVA, follow Tukey’s Multiple Comparison Test).