rs374156784
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1
The NM_022124.6(CDH23):c.9617G>A(p.Arg3206His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000103 in 1,613,604 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R3206C) has been classified as Uncertain significance.
Frequency
Consequence
NM_022124.6 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive nonsyndromic hearing loss 12Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
- nonsyndromic genetic hearing lossInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- Usher syndrome type 1Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Usher syndrome type 1DInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
- hearing loss, autosomal recessiveInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000302 AC: 46AN: 152226Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000169 AC: 42AN: 248034 AF XY: 0.000126 show subpopulations
GnomAD4 exome AF: 0.0000821 AC: 120AN: 1461260Hom.: 0 Cov.: 38 AF XY: 0.0000743 AC XY: 54AN XY: 726856 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000302 AC: 46AN: 152344Hom.: 0 Cov.: 33 AF XY: 0.000336 AC XY: 25AN XY: 74502 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1Benign:1
Identified in a patient with retinal dystrophy who also had variants in the ABCA4 gene (PMID: 32090030); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: Li[article]2022, 32090030) -
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not specified Uncertain:1
The Arg3206His variant in CDH23 has not been previously reported in individuals with hearing loss, but has been identified in 0.1% (4/4142) of African American chromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/ EVS/; dbSNP rs374156784). Computational prediction tools and conservation analys es do not provide strong support for or against an impact to the protein. In sum mary, additional information is needed to 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