(L) RT-qPCR analysis of MEF2 targets in NRCMs after Raptor KD and Grk5 overexpression. Analyzed by One-way ANOVA. n=6-8 biological replicates per conditions. Data information: Error bars indicate means ± SEM; * - P ≤ 0.05, ** - P ≤ 0.01, *** - P ≤ 0.001, **** - P ≤ 0.0001 