Interestingly, the insulin receptor (INSR) and the sarcoplasmic/endoplasmic reticulum calcium ATPase 1 (SERCA1) transcripts which were also suggested to be mis-spliced in DM1 skeletal muscle myotubes (Provenzano et al., 2017), started to appear in myotubes of non-DM1 samples, but failed to do so in non-DM1 samples. Here, ATP2A1 is linked to myotonic dystrophy type 1.