Modeling related to PIP 5-kinase and VSP. Traces are model predictions, and symbols are data. (A) Model current during VSP activation superimposed with the time course of current inhibition from Fig. 3 D. (B) Model current recovery superimposed with averaged time courses as in Fig. 6 A (n = 11 cells). (C) Model predictions for PI(4)P and PIP₂ during VSP activation and recovery.