FLNC and cardiomyopathy: Variants in FLNC are known to cause cardiomyopathy, and we recently reported the frameshift variant p.Phe1626Serfs*40 in FLNC36 with opposite direction of effects on the R amplitude in lead V1 and myocardial infarction to those of p.Ala2397Val (Supplementary Table 7).