The most frequently mutated genes in our AIP patients were CNTNAP3, CNTNAP3B, FCGBP, FOXD4L4, FRG2C, GOLGA6L2, GPRIN2, KCNJ18, MUC12, MUC3A, NBPF26, and OR10G2. This evidence concerns the gene NBPF26 and autoimmune pancreatitis.