IHF redistributes bound initiator protein, DnaA, on supercoiled oriC of Escherichia coli.


In Escherichia coli, initiation of chromosome replication requires that DnaA binds to R boxes (9-mer repeats) in oriC, the unique chromosomal replication origin. At the time of initiation, integration host factor (IHF) also binds to a specific site in oriC. IHF stimulates open complex formation by DnaA on supercoiled oriC in cell-free replication systems… (More)


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