Fig. S3.

Fgf13 KO mice are protected from adverse electrical remodeling after TAC. (A) Representative lead I EKG traces from MCM and Fgf13 KO mice after 12 wk of sham or TAC surgery. MCM TAC EKGs showed entirely negative and inseparable J and T waves below the isoelectric line (dotted red line) indicating pathological electrical remodeling. Fgf13 KO TAC EKGs showed normal J–T wave transition. (B–D) Summarized data for PR interval (B), QRS interval (C), and QTc interval (D). Two-way ANOVA showed no significant genotype by surgery interaction for all EKG parameters.