The other two target genes were the scavenger receptor class B type 1 (Scarb1), a multiligand membrane receptor protein that functions as a physiologically relevant high-density lipoprotein (HDL) receptor,32 or dystrophia myotonica protein kinase (Dmpk) gene, and the expansion of the CUG repeat, which causes myotonic dystrophy type 1. This evidence concerns the gene DMPK and myotonic dystrophy type 1.