Figure 4.
Voltage activation properties of KCa channels in cell-attached patches from control and mdx muscle fibers. (A) Segments of current traces obtained in response to voltage pulses given at values indicated next to each trace from a holding potential of 0 mV. (B) Segments of current traces obtained from the same patches shown in A after excision (indicated by arrows) in the 2.5 mM Ca2+-containing bath solution. (C) Relationships between Po and membrane potential in 35 control (●) and 39 mdx (○) cell-attached patches.