rs565693539
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_001384140.1(PCDH15):c.679C>T(p.Arg227Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000256 in 1,601,902 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_001384140.1 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
PCDH15 | ENST00000320301.11 | c.679C>T | p.Arg227Cys | missense_variant | Exon 7 of 33 | 1 | NM_033056.4 | ENSP00000322604.6 | ||
PCDH15 | ENST00000644397.2 | c.679C>T | p.Arg227Cys | missense_variant | Exon 7 of 38 | NM_001384140.1 | ENSP00000495195.1 |
Frequencies
GnomAD3 genomes AF: 0.0000461 AC: 7AN: 151796Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000679 AC: 17AN: 250380Hom.: 0 AF XY: 0.0000443 AC XY: 6AN XY: 135330
GnomAD4 exome AF: 0.0000234 AC: 34AN: 1449988Hom.: 0 Cov.: 30 AF XY: 0.0000180 AC XY: 13AN XY: 722084
GnomAD4 genome AF: 0.0000461 AC: 7AN: 151914Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 4AN XY: 74272
ClinVar
Submissions by phenotype
not provided Uncertain:3
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This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 227 of the PCDH15 protein (p.Arg227Cys). This variant is present in population databases (rs565693539, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with PCDH15-related conditions. ClinVar contains an entry for this variant (Variation ID: 179459). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
not specified Uncertain:1
The p.Arg227Cys variant in PCDH15 has been identified in the heterozygous state in two individuals with hearing loss, one of whom had clinical features of Usher syndrome but was found to have an alternate genetic etiology (LMM data). This v ariant has also been identified in 0.04% (14/34350) of Latino chromosomes by gno mAD (http://gnomad.broadinstitute.org) and has been reported in ClinVar (Variati on ID 179459). Computational prediction tools and conservation analysis do not p rovide strong support for or against an impact to the protein. In summary, the c linical significance of the p.Arg227Cys variant is uncertain. ACMG/AMP Criteria applied: PM2_Supporting. -
Usher syndrome type 1F Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at