Figure 3.

Unitary currents in HeLa-WT and HeLa-Cx43 cells. (A) Representative current traces in response to stepping positive membrane potentials (Vm) from −30 mV to potentials in the range of +40 to +70 mV. Unitary event activity was only observed in HeLa-Cx43. (B) Average unitary conductance and time constant of the transitions in HeLa-Cx43 obtained by two observers (N = 4; N = 15; n = 132, 33 traces per Vm step). There were no differences in conductance or time constants recorded at different voltages (one-way ANOVA with Bonferroni post-test).