Figure 6.

Bax reduces the linear tension of the membrane. (A) Measurement of specific capacitance in the absence and presence of Bax. (B) Effect of Bax on surface tension. Surface tension was found by measuring the change in membrane capacitance that resulted from application of hydrostatic pressure differences between bathing solutions (15). (C) Fitting of the membrane lifetime voltage dependence to Eq. 1, in the presence and absence of Bax (100 pM). The values for A were 0.027 and 0.039 in the absence and presence of Bax, respectively. (D) Linear tension as a function of Bax concentration.