FtsK is a prokaryotic multidomain DNA translocase that coordinates chromosome segregation and cell division. FtsK is membrane anchored at the division septum and, guided by highly skewed DNA sequences, translocates the chromosome to bring the terminus of replication to the septum. Here, we use in vitro single-molecule and ensemble methods to unveil a mechanism of action in which the translocation and sequence-recognition activities are performed by different domains in FtsK.
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