PRDM6 and obesity due to melanocortin 4 receptor deficiency: Similarly, some of the heart rate recovery genes were also associated with resting heart rate (ACHE and GNG11), heart rate variability (GNG11 and NDUFA11), blood pressure (PRDM6, PRKAG2, and CHRM2), QRS duration, (PRDM6), atrial fibrillation and coronary artery disease (BCL11A, PRDM6), and obesity and vigorous physical activity levels (both NEGR1).