CDH1 and infection: Both infection with WT strains and transfection with pCMV-ompA plasmid inhibited the interaction between IQGAP1 and F-actin (Figure 6H); they also promoted the interaction between IQGAP1 and β-catenin, thus inducing the dissociation of α-catenin from the E-cadherin–catenin complex.