(A) Schematic of the C. crescentus cell cycle with polar appendices and localization patterns for PleC, DivJ, DivK, and PleD. Kinase (PleCK) and phosphatase state (PleCP) of PleC are indicated. For details see text. (B) Schematic of the C. crescentus cell cycle with spatial distribution of CtrA, ClpXP CpdR, PopA, and RcdA. The succession of CtrA and CpdR degradation is indicated. For details see text.