RYR2 and catecholaminergic polymorphic ventricular tachycardia: Activation of CaMKII-mediated phosphorylation of RYR2 at S2814 can activate the latent arrhythmic potential of catecholaminergic polymorphic ventricular tachycardia (CPVT) caused by RYR2 mutations (Park et al., 2019).