Fig. 4. Effect of DSP-H1684R genetic variant on the action-potentials (APs). A. Representative action-potentials in donor iPSC cardiomyocytes (D1, black; D2, grey) and in PCCD cardiomyocytes (red) superimposed for the direct comparison. B. Averaged parameters of action-potential characteristics - probability for triggering AP, which reflects proportion of cells where AP was triggered; amplitude of AP; maximal velocity of AP; action-potential duration measured at 50% of its amplitude. Asterisk reflects significance (p<0.05), for details see Materials and Methods.