...protein DnaA. First, DnaA must bind ATP. Then, the ATP-bound DnaA binds multiple specific sites within...controlled plasmids. Binding of IHF (green) redistributes DnaA (red) from binding primarily high-affinity...protein binding it (Grimwade et al., 2018). Rather than serving as an energy source, ATP binding is one...interacts with DnaA, stabilizing its binding and contributing to DNA unwinding. This promotes initiation at the... plasmids that can initiate DNA replication independently are said to be under relaxed control, as they...come in both high- and low-affinity versions, but binding of the low-affinity versions is required to start...DnaA alone, as long as there are enough copies to bind every available DnaA box. In bacteria, however, ...