rs377100683
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_022124.6(CDH23):c.3133G>A(p.Val1045Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000291 in 1,613,824 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V1045L) has been classified as Likely benign.
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: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CDH23 | NM_022124.6 | c.3133G>A | p.Val1045Met | missense_variant | Exon 27 of 70 | ENST00000224721.12 | NP_071407.4 | |
| CDH23 | NM_001171930.2 | c.3133G>A | p.Val1045Met | missense_variant | Exon 27 of 32 | NP_001165401.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152244Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000201 AC: 5AN: 248766 AF XY: 0.0000370 show subpopulations
GnomAD4 exome AF: 0.0000301 AC: 44AN: 1461580Hom.: 0 Cov.: 31 AF XY: 0.0000344 AC XY: 25AN XY: 727068 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152244Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74384 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
The c.3133G>A (p.V1045M) alteration is located in exon 27 (coding exon 26) of the CDH23 gene. This alteration results from a G to A substitution at nucleotide position 3133, causing the valine (V) at amino acid position 1045 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 1045 of the CDH23 protein (p.Val1045Met). This variant is present in population databases (rs377100683, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with CDH23-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CDH23 protein function. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at