Murphy D, Singh R, Kolandaivelu S, Ramamurthy V, Stoilov P. Alternative Splicing Shapes the Phenotype of a Mutation in BBS8 To Cause Nonsyndromic Retinitis Pigmentosa. Mol Cell Biol. 2015;35:1860-70 pubmed publisher
..These intronic sequences are sufficient for photoreceptor-cell-specific splicing of heterologous exons, including an exon with a randomized sequence. ..