RNA and protein expression analysis. RNA data expression and WB analysis at the alternans-susceptible (red bar) and alternans-resistant (blue bar) sites. Data are normalized to mean value at alternans-resistant sites, which is equal to 1. Housekeepers are indicated below each graph. The sample size for each group is reported in brackets under each boxplot. WB, western blot; CSQN, calsequestrin; RyR, ryanodine.