rs397517317
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_022124.6(CDH23):c.269G>A(p.Arg90Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,613,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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 Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152136Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000323 AC: 8AN: 247798Hom.: 0 AF XY: 0.0000371 AC XY: 5AN XY: 134666
GnomAD4 exome AF: 0.0000171 AC: 25AN: 1461440Hom.: 0 Cov.: 31 AF XY: 0.0000193 AC XY: 14AN XY: 727026
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152254Hom.: 0 Cov.: 32 AF XY: 0.0000537 AC XY: 4AN XY: 74454
ClinVar
Submissions by phenotype
not provided Uncertain:3
Has not been previously published as pathogenic or benign to our knowledge -
CDH23: PM2, BP4 -
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 90 of the CDH23 protein (p.Arg90Gln). This variant is present in population databases (rs397517317, gnomAD 0.02%). 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: 45899). 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 C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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 specified Uncertain:1
The Arg90Gln variant in CDH23 has not been reported in the literature nor previo usly identified by our laboratory. Computational analyses (biochemical amino aci d properties, homology, PolyPhen2, SIFT, AlignGVGD) do not provide strong suppor t for or against pathogenicity. In summary, the clinical significance of this va riant cannot be determined with certainty at this time. -
Autosomal recessive nonsyndromic hearing loss 12;C1832845:Usher syndrome type 1D;C4539685:Pituitary adenoma 5, multiple types Uncertain:1
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Pituitary adenoma 5, multiple types Uncertain:1
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Usher syndrome type 1 Uncertain:1
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Retinal dystrophy Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at