Figure 6

PriA's ATPase activity is stimulated by DNA and by PriB. A) DNA-dependent ATP hydrolysis catalyzed by 10 nM PriA in the presence (circles) or absence (squares) of 100 nM PriB (as monomers). The DNA substrate is Fork 3. Measurements are reported in triplicate and error bars represent one standard deviation of the mean. B) Effect of ATP concentration on rates of ATP hydrolysis catalyzed by 10 nM PriA in the presence of 100 nM Fork 3 and in the presence (circles) or absence (squares) of 100 nM PriB (as monomers). Measurements are reported in triplicate and error bars represent one standard deviation of the mean.