Fig. 1
Genetic testing identified GBT411/dnajb6 as a deleterious modifier for bag3 cardiomyopathy. (A,B) Levels of ejection fraction (EF) and fractional shortening (FS) (in %) of bag3e2/e2;sorbs2b−/−, bag3e2/e2;ano5a−/− and bag3e2/e2;rxraa−/− double-mutant fish compared to bag3e2/e2 single-mutant and WT control fish at 6 months; n=6-15, one-way ANOVA. (C) Survival (in %) of bag3e2/e2;GB411−/− double-mutant fish compared to single-mutant and WT control fish; n=15-24, log-rank test. (D) FS of bag3e2/e2;dnajb6b−/− double-mutant fish compared to single-mutant and WT control fish at 6 days dpf; n=6-7, one-way ANOVA. (E,F) Images of ventricular chamber outlines (E) and quantification of its size (F) of bag3e2/e2;GB411−/− double-mutant hearts at systolic stage compared to single mutants and WT controls, n=6. One-way ANOVA. Scale bar: 100 µm. *P<0.05. ns, not significant.