The MYL2 A13T (rs104894363) variant located in the regulatory light chain of myosin was reported to be causal for a subtype of familial hypertrophic cardiomyopathy with onset of clinical symptoms around middle age (Poetter et al. 1996; Andersen et al. 2001). Here, MYH14 is linked to familial hypertrophic cardiomyopathy.