PS3 supporting: a homologous yeast assay showed altered spliceosomal function for the D1598N-equivalent substitution. PM2 supporting: gnomAD v4.1 allele frequency is 2.29251e-05, below the generic PM2 threshold of 0.0001.
PRPF8 encodes a core component of the spliceosome, the cellular machinery that removes introns from pre-mRNA during gene expression; it is essential for the catalytic second step of pre-mRNA splicing and helps assemble splicing complexes through its WD repeat domains. Mutations in PRPF8 are a known cause of autosomal dominant retinitis pigmentosa, an inherited form of progressive vision loss. In cancer, altered PRPF8 splicing disrupts the proofreading function of the spliceosome and is often found alongside TP53 loss-of-function mutations, implicating it in tumor development as a tumor suppressor.
This PRPF8 missense variant affects a core spliceosome component in a gene associated with autosomal dominant retinitis pigmentosa and altered splicing in cancer.
PS3 supporting: a homologous yeast assay showed altered spliceosomal function for the D1598N-equivalent substitution. PM2 supporting: gnomAD v4.1 allele frequency is 2.29251e-05, below the generic PM2 threshold of 0.0001.
Ashkenazi Jewish 2 / 29,608 |
0.0068% |
European (non-Finnish) 33 / 1,179,934 |
0.0028% |
Remaining individuals 1 / 62,480 |
0.0016% |
European (Finnish) 1 / 64,024 |
0.0016% |
East Asian 1 / 18,394 |
0.0054% |
European (non-Finnish) 6 / 113,750 |
0.0053% |
Admixed American 1 / 34,590 |
0.0029% |