The tunable MinD concentration gradient throughout the cell cycle. (A) Spatial distribution of the membrane-bound MinD and MinE (de, top cell) and MinD (d, lower cell) in a complete oscillation cycle. The corresponding intensity plots generated in the simulation are shown in Figs. S6 and S7; and Video 1. (B) Kinetic steps driving pole-to-pole oscillations in a one-dimensional virtue cell. (C) Slow dissociation of the membrane-bound MinD and MinE or fast nucleotide exchange in cytosolic MinD can cause an inhibitory effect on pole-to-pole oscillation.