Fig. (4) Effect of Gp07, its domains and ΔGp07 upon the growth of E. coli. Overexpression of Phi11 Gp07, rCTD as well as the ΔGp07 inhibited growth of the host cells. Overexpression of rNTD initially repressed host cell growth but resumption of cell growth was seen after a few hours. The overexpressed control protein (CI) had no effect upon the growth of E. coli cells. All experiments were performed in triplicate. The standard error of the mean was used to calculate the error bars. In case of those points where the experimental variations are too small, the error bars are not visible.