rs756147087
Variant summary
Our verdict is Pathogenic. The variant received 5 ACMG points: 5P and 0B. PM5PP3PM3
This summary comes from the ClinGen Evidence Repository: The p.Glu956Lys variant in CDH23 is a missense variant predicted to cause substitution of glutamic acid to lysine at amino acid 956. The highest population minor allele frequency in gnomAD v3.1.2 is 0.02895% (12/41444) in African/African American population which is greater than the PM2_Supporting thresholds defined by the ClinGen Hearing Loss Expert Panel (≤0.007%) and less than the BS1_supporting MAF of ≥0.0007 (0.07%) for autosomal recessive disorders (no codes met). The computational predictor REVEL produced a score of 0.616, which was just below the threshold to automatically apply PP3, but the Expert Panel decided to apply PP3 based upon manual review of alignments to examine homology. This variant has been detected in at least six probands with hearing loss without evidence of retinal disease (5 PM3_Very Strong points, PMID:26763877,25963016, 22899989, Invitae Internal Data (SCV001228538.3)). Of those individuals, four harbored the p.Pro240Leu pathogenic variant in CDH23 with three individuals confirmed in trans (PMID 25963016, 22899989). The fifth individual harbored the p.Asp645Gly variant in CDH23, but phasing was not performed (PMID 25963016). The sixth proband carried a second pathogenic CDH23 variant in trans (Invitae Internal Data). 1 different missense variant, c.2867A>G (p.Glu956Gly) ClinVar Variation ID:1180655, in the same codon has been classified as likely pathogenic for AR sensorineural hearing loss by two submitters in ClinVar (PM5). In summary, this variant meets the criteria to be classified as pathogenic for AR hearing loss based on ACMG/AMP criteria applied, as specified by the ClinGen Hearing Loss VCEP; PP3, PM3_Very Strong, PM5. (The ClinGen Hearing Loss VCEP Specifications Version 2; 06/27/2023) LINK:https://erepo.genome.network/evrepo/ui/classification/CA5544361/MONDO:0020678/005
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: Pathogenic. The variant received 5 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_022124.6. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CDH23 | NM_022124.6 | MANE Select | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 70 | NP_071407.4 | ||
| CDH23 | NM_001171930.2 | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 32 | NP_001165401.1 | |||
| CDH23 | NM_001171931.2 | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 26 | NP_001165402.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CDH23 | ENST00000224721.12 | TSL:5 MANE Select | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 70 | ENSP00000224721.9 | ||
| CDH23 | ENST00000616684.4 | TSL:5 | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 32 | ENSP00000482036.2 | ||
| CDH23 | ENST00000398809.9 | TSL:5 | c.2866G>A | p.Glu956Lys | missense | Exon 25 of 32 | ENSP00000381789.5 |
Frequencies
GnomAD3 genomes AF: 0.0000789 AC: 12AN: 152162Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000325 AC: 8AN: 246242 AF XY: 0.0000446 show subpopulations
GnomAD4 exome AF: 0.00000890 AC: 13AN: 1460396Hom.: 0 Cov.: 32 AF XY: 0.00000963 AC XY: 7AN XY: 726520 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000789 AC: 12AN: 152162Hom.: 0 Cov.: 32 AF XY: 0.000135 AC XY: 10AN XY: 74326 show subpopulations
Age Distribution
ClinVar
ClinVar submissions as Germline
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at