PTVs in three genes with limited or moderate evidence for Mendelian cardiomyopathy were nominally associated with DCM in GeL (MYPN: OR = 15.0, P = 0.03; PRDM16: OR = 40.3, P = 0.008) and with HCM in UKB (NEXN: OR = 24.1, P = 0.01) (Supplementary Tables 11 and 12). This evidence concerns the gene MYPN and familial dilated cardiomyopathy.