Cardiomyopathy symptoms occur in Lmna-null (Sullivan et al., 1999), LmnaH222P/H222P (Arimura et al., 2005; Muchir et al., 2007; Muchir et al., 2012; Le Dour et al., 2017), LmnaN195K/N195K (Mounkes et al., 2005), and LmnaM371K (Wang et al., 2006) lines. This evidence concerns the gene LMNA and cardiomyopathy.