Fig. 6. Inhibition of rapid endocytosis by -Dyn in the gastrointestinal HT29 cells does not change membrane capacitance or conductance in the absence of activation with cAMP. (A) Membrane capacitance experiments were carried out as in Fig. 3. Membrane capacitance and conductance is shown for four representative cells. Transition to the whole-cell configuration is marked by the arrow for each representative capacitance trace. (B) A summary of the capacitance and conductance increases for each of the conditions indicated below each bar. Significant increases over control conditions are indicated above each bar with an asterisk. Data are the average of five to six cells for each condition.