Figure 5.

The density of I_to (A) and I_K1 (B) in rabbit ventricular myocytes. Representative I_to current traces recorded from wild‐type (WT) and transgenic (TG) ventricular myocytes are shown in panel A (left). Current–voltage relations (right) demonstrate higher I_to density in TG rabbits compared with WT rabbits. Panel (B) illustrates steady‐state current–voltage curves (left) demonstrating no differences in density of I_K1 between WT and TG rabbits. The outward current sections of the curves are enlarged on the right. Insets show the applied voltage protocols. Values are means ± SEM. ^* P < 0.05 versus WT littermates.