(E) Grk5 protein and mRNA levels in NRCMs as well as MEF2-luciferase activity after 24h of Torin 1 treatment. Analyzed by t-test, n=4-6 biological replicates per conditions. Torin1 activity measured by protein levels of phosphorylated ribosomal S6 protein (S235/236rpS6). Data information: Error bars indicate means ± SEM; * - P ≤ 0.05, ** - P ≤ 0.01, *** - P ≤ 0.001, **** - P ≤ 0.0001 