Figure 3.

Changes in the membrane capacitance by the incorporation of phosphatidylcholines. (A) Changes in the membrane capacitance of HEK cells. (B) Peak shifts in the nonlinear capacitance of OHCs. In panels A and B, each phosphatidylcholine is identified with a set of two numbers: (Acyl chain length):(number of unsaturated bonds). The numbers in the parentheses indicate the number of the cells from which the data are collected. Error bars show SDs. The holding potential −75 mV. (C) Correlation between capacitance peak shifts of OHCs and changes in the capacitance in HEK cells. The best fit slope (solid line) is (6.1 ± 0.9) mV percent change of linear capacitance.