Fig. S6.

Oscillatory Ca²⁺ waves generated by the model. (A and B) For some parameter combinations (here $v_{\text{HC}}$ = 250.0 μM·s⁻¹, $r_{\text{deg}}^{\text{ATP}}$ = 0.001 s⁻¹) oscillatory Ca²⁺ waves propagate in a radial fashion from the stimulation point. (C) Kymograph from the example shown in A and B, representing the variation in time of [Ca²⁺]_c along a line from the point of ATP application. Periodic diagonal bands indicate the propagation of Ca²⁺ oscillations.