We addressed the splicing pattern of transcripts previously described as altered in patients with DM1 (BIN1 (exon 11), MBNL1 (exon 5), LDB3 (exon 11), INSR (exon 11), DMD (exon 78), and ATP2A1 (exon 22)). Here, ATP2A1 is linked to myotonic dystrophy type 1.