APs, BCAA, BCAAs, Bcat2 gene, Bcat2p, Bcat2p.Q300*, Bcat2p.Q300*/p., Cardiac arrhythmias, ENU, N-ethyl-, N-nitrosourea, SCD, amino acids, arrhythmia, arrhythmias, branched, branched chain amino acid, branched chain amino acid transaminase, branched chain amino acids, calcium, cardiac arrhythmia, cardiac failure, cardiomyocytes, diabetes, heart failure, human, human pluripotent stem cell-derived cardiomyocytes, isoleucine, leucine, mTOR, metabolic dysregulation, metabolic syndrome, mice, mouse, mouse line, obesity, patients, rapamycin, stroke, sudden cardiac death, sudden death, valine