rs372388344
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_022124.6(CDH23):c.9886G>A(p.Asp3296Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,610,934 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar 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: 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.9886G>A | p.Asp3296Asn | missense_variant | Exon 70 of 70 | ENST00000224721.12 | NP_071407.4 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| CDH23 | ENST00000224721.12 | c.9886G>A | p.Asp3296Asn | missense_variant | Exon 70 of 70 | 5 | NM_022124.6 | ENSP00000224721.9 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152260Hom.: 0 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.0000290 AC: 7AN: 241210 AF XY: 0.00000758 show subpopulations
GnomAD4 exome AF: 0.0000130 AC: 19AN: 1458674Hom.: 0 Cov.: 31 AF XY: 0.00000965 AC XY: 7AN XY: 725530 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152260Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0AN XY: 74398 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Pituitary adenoma 5, multiple types Pathogenic:1
Usher syndrome type 1 Uncertain:1
not provided Uncertain:1
This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 3296 of the CDH23 protein (p.Asp3296Asn). This variant is present in population databases (rs372388344, gnomAD 0.009%). This missense change has been observed in individual(s) with retinal dystrophy (PMID: 36460718). ClinVar contains an entry for this variant (Variation ID: 437905). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt CDH23 protein function with a negative predictive value of 95%. 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