Negative control of replication initiation by a novel chromosomal locus exhibiting exceptional affinity for Escherichia coli DnaA protein.

Abstract excerpt

Replication of the Escherichia coli chromosome is initiated at a unique site, oriC. Concurrent initiation occurs at all oriC sites present in a cell once, and only once, per cell cycle. A mechanism to ensure cyclic initiation events was found operating through the chromosomal site, datA, a 1-kb segment located at 94.7 min on the genetic map that titrates exceptionally large amounts of the bacterial initiator...

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