Fig. 2.
ATP binding by RctB and DnaA. A total of 80 nM of DnaA (■), RctB (▲), CpxR (gray circles), a protein that is not known to bind ATP, or no protein (○) were incubated with different concentrations of P32-αATP, and the bound ATP was detected by using a filter binding assay. A representative experiment of three experiments is shown.