MUC4 and atrial fibrillation: PHLDA1 (in frame deletion; 77%), MUC4 (missense mutation; 71%), AHNAK2 (missense mutation; 52%), MAML3 (frame shift deletion; 44%), and OR2T35 (missense mutation; 37%) were the top five genes with mutation frequency among 52 AF samples (Figure 7(a)).