Regulatory cascade in the Caulobacter cell cycle. The genes for dnaA, gcrA, ctrA and ccrM are shown together with their respective products. The genes are shown in the sequence they are replicated on the chromosome. Asterisks indicate CcrM recognition sites (GANTC). In addition to the genes shown in this figure, DnaA, GrcA and CtrA control about 40, 50 and 95 other genes respectively. Figure modified with permission from [195] and Copyright (2007) National Academy of Sciences, U.S.A.