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Activation of the divisome for septal PG synthesis. FtsEX acts on FtsA to make it monomeric such that FtsA recruits the downstream divisome proteins (FtsK, FtsQLB, and FtsWI). The arrival of FtsN triggers the activation of septal PG synthesis (FtsWI). Continuous ATP hydrolysis by FtsEX is required for PG synthesis and hydrolysis while the treadmilling of FtsZ filaments causes the PG synthesis machine to rotate around the septum resulting in symmetrical incorporation of PG.
