SNRNP200 and autosomal dominant retinitis pigmentosa: In addition to mutations that affect the splicing of specific retinal genes, mutations in genes associated with ubiquitously core snRNP proteins, such as PRPF3, PRPF4, PRPF6, PRPF8, PRPF31, SNRNP200/BRR2 and splicing factors such as RP9 and DHX38 lead to autosomal dominant retinitis pigmentosa [59].