ANK2 and catecholaminergic polymorphic ventricular tachycardia: (vi)Other genes are implicated in the pathophysiological mechanism of CPVT but in far lesser extent such as ankyrin 2 (ANK2) [27, 28], sodium voltage-gated channel alpha subunit 5 (SCN5A) [29] and potassium voltage-gated Channel subfamily J member 2 (KCNJ2) [30–32].