SORBS1 and myotonic dystrophy type 1: Using publicly available RNA sequencing data from the DMseq database (http://www.dmseq.org), and consistent with our initial findings, SORBS1 exon 25 exhibited significant misregulation across tibialis anterior (TA) muscle biopsies from adult DM1 patients with a ΔPSI of 15.8 ± 3.7% without affecting total transcript expression (Figures 1d and S1c).