Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Broad Center for Mendelian Genomics, |
RCV002789950 | SCV003761046 | pathogenic | Usher syndrome type 1F | 2023-01-24 | criteria provided, single submitter | curation | The p.Asn1254fs variant in PCDH15 has been reported in 1 individual, in the homozygous state, with Usher syndrome type 1F (PMID: 35779349), and has been identified in 0.005% (6/113622) of European (non-Finnish) chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP ID: rs762129852). Although this variant has been seen in the general population in a heterozygous state, its frequency is low enough to be consistent with a recessive carrier frequency. This variant is predicted to cause a frameshift, which alters the protein’s amino acid sequence beginning at position 1254 and leads to a premature termination codon 54 amino acids downstream. This alteration is then predicted to lead to a truncated or absent protein. Loss of function of the PCDH15 gene is an established disease mechanism in autosomal recessive Usher syndrome type 1F. In summary, this variant meets criteria to be classified as pathogenic for autosomal recessive Usher syndrome type 1F. ACMG/AMP Criteria applied: PVS1, PM2_supporting, PM3_supporting (Richards 2015). |
Labcorp Genetics |
RCV003720761 | SCV004502054 | pathogenic | not provided | 2023-04-28 | criteria provided, single submitter | clinical testing | For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 2412658). This variant has not been reported in the literature in individuals affected with PCDH15-related conditions. This variant is present in population databases (rs762129852, gnomAD 0.005%). This sequence change creates a premature translational stop signal (p.Asn1254Lysfs*54) in the PCDH15 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PCDH15 are known to be pathogenic (PMID: 11398101, 11487575, 14570705). |
Clinical Genetics Laboratory, |
RCV003720761 | SCV005196779 | likely pathogenic | not provided | 2022-05-27 | criteria provided, single submitter | clinical testing |