rs727504606
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PP3_Strong
The NM_022124.6(CDH23):c.4694A>C(p.Tyr1565Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000329 in 1,612,610 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 10/17 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_022124.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000122 AC: 3AN: 246200Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 133762
GnomAD4 exome AF: 0.0000356 AC: 52AN: 1460418Hom.: 0 Cov.: 31 AF XY: 0.0000262 AC XY: 19AN XY: 726336
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74346
ClinVar
Submissions by phenotype
not provided Uncertain:2
This sequence change replaces tyrosine with serine at codon 1565 of the CDH23 protein (p.Tyr1565Ser). The tyrosine residue is highly conserved and there is a large physicochemical difference between tyrosine and serine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with CDH23-related conditions. ClinVar contains an entry for this variant (Variation ID: 179073). 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: "Not Available"; Align-GVGD: "Class C65"). 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. -
Not observed at significant frequency in large population cohorts (gnomAD); 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 Tyr1565Ser variant in CDH23 has not been reported in individuals with hearin g loss or in large population studies. Computational analyses (biochemical amino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Tyr1565Ser variant may impact the protein, though this information is not predi ctive enough to determine pathogenicity. In summary, additional data is needed t o determine the clinical significance of this variant. -
Usher syndrome type 1 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at