Fig. 4

The binding and invasiveness of Yersinia Invasin require β1 integrin receptor. F9, triple knockout (TKO) and double knockout (DKO) cells were infected with MC-InvGFP strain at MOI 1:10 at 37 °C for 1 h. The percentage of total cell-associated (a) and intracellular (b) bacteria was determined as described in Materials and Methods. Obtained results are expressed relative to values obtained with F9 cells, set at 100%. Results were compared using a Mann Whitney test (***p < 0.001, **p < 0.01)