Gene expression of cardiac ion channel transcripts in disease-specific hiPSC-CMs. Quantitative PCR results for expression of the primary 14 cardiac ion channel transcripts (SCN5A, KCND3, CACNA1C, KCNH2, KCNQ1, KCNA5, HCN2, HCN4, KCNJ2, KCNJ3, KCNJ5, KCNJ11, KCNE1, and KChIP2) responsible for the electrophysiological function in adult CMs. HEK-293, and hERG expressing HEK293 cells (hERG-HEK293) were used as negative controls, whereas adult LV tissue was used as a positive control (n=3, 2 lines per group).