rs62622410

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_022124.6(CDH23):​c.1423G>A​(p.Val475Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00223 in 1,613,968 control chromosomes in the GnomAD database, including 72 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.012 ( 39 hom., cov: 33)
Exomes 𝑓: 0.0012 ( 33 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

6
12

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 2.52
Variant links:
Genes affected
CDH23 (HGNC:13733): (cadherin related 23) This gene is a member of the cadherin superfamily, whose genes encode calcium dependent cell-cell adhesion glycoproteins. The encoded protein is thought to be involved in stereocilia organization and hair bundle formation. The gene is located in a region containing the human deafness loci DFNB12 and USH1D. Usher syndrome 1D and nonsyndromic autosomal recessive deafness DFNB12 are caused by allelic mutations of this cadherin-like gene. Upregulation of this gene may also be associated with breast cancer. Alternative splice variants encoding different isoforms have been described. [provided by RefSeq, May 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

PM1
In a domain Cadherin 5 (size 100) in uniprot entity CAD23_HUMAN there are 6 pathogenic changes around while only 2 benign (75%) in NM_022124.6
BP4
Computational evidence support a benign effect (MetaRNN=0.010747403).
BP6
Variant 10-71646591-G-A is Benign according to our data. Variant chr10-71646591-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 45867.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-71646591-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0118 (1795/152260) while in subpopulation AFR AF= 0.0407 (1690/41528). AF 95% confidence interval is 0.0391. There are 39 homozygotes in gnomad4. There are 805 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 39 AD,AR,Digenic gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.1423G>A p.Val475Met missense_variant Exon 14 of 70 ENST00000224721.12 NP_071407.4 Q9H251-1Q6P152
CDH23NM_001171930.2 linkc.1423G>A p.Val475Met missense_variant Exon 14 of 32 NP_001165401.1 Q9H251A0A087WYR8Q6P152
CDH23NM_001171931.2 linkc.1423G>A p.Val475Met missense_variant Exon 14 of 26 NP_001165402.1 Q9H251Q8N5B3
CDH23NM_052836.4 linkc.1423G>A p.Val475Met missense_variant Exon 14 of 14 NP_443068.1 Q9H251-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH23ENST00000224721.12 linkc.1423G>A p.Val475Met missense_variant Exon 14 of 70 5 NM_022124.6 ENSP00000224721.9 Q9H251-1

Frequencies

GnomAD3 genomes
AF:
0.0118
AC:
1793
AN:
152142
Hom.:
39
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0408
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00471
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00956
GnomAD3 exomes
AF:
0.00321
AC:
801
AN:
249272
Hom.:
18
AF XY:
0.00241
AC XY:
326
AN XY:
135240
show subpopulations
Gnomad AFR exome
AF:
0.0433
Gnomad AMR exome
AF:
0.00269
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000168
Gnomad OTH exome
AF:
0.00182
GnomAD4 exome
AF:
0.00124
AC:
1810
AN:
1461708
Hom.:
33
Cov.:
31
AF XY:
0.00106
AC XY:
769
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.0395
Gnomad4 AMR exome
AF:
0.00266
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.000174
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000123
Gnomad4 OTH exome
AF:
0.00330
GnomAD4 genome
AF:
0.0118
AC:
1795
AN:
152260
Hom.:
39
Cov.:
33
AF XY:
0.0108
AC XY:
805
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0407
Gnomad4 AMR
AF:
0.00471
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000622
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00946
Alfa
AF:
0.00164
Hom.:
7
Bravo
AF:
0.0135
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.0405
AC:
173
ESP6500EA
AF:
0.000471
AC:
4
ExAC
AF:
0.00383
AC:
464
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Mar 05, 2015
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 17, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: CDH23 c.1423G>A (p.Val475Met) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0032 in 249272 control chromosomes, predominantly at a frequency of 0.043 within the African or African-American subpopulation in the gnomAD database, including 17 homozygotes. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 13 fold of the estimated maximal expected allele frequency for a pathogenic variant in CDH23 causing Usher Syndrome phenotype (0.0032), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no experimental evidence demonstrating its impact on protein function have been reported. Six ClinVar submitters (evaluation after 2014) cite the variant as benign (n=4) and likely benign (n=2). Based on the evidence outlined above, the variant was classified as benign. -

Sep 08, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Val475Met in Exon 14A of CDH23: This variant is not expected to have clinical si gnificance because it has been identified in 4.1% (173/4270) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http ://evs.gs.washington.edu/EVS; dbSNP rs62622410). -

not provided Benign:3
Sep 10, 2018
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 25262649, 22952768, 30245029) -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Usher syndrome type 1D Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Usher syndrome type 1 Benign:1
Nov 12, 2019
Natera, Inc.
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 12 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.050
T;T;T;.;.;.;T;.;.
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D;D;D;D;D;D;D;D;D
MetaRNN
Benign
0.011
T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.46
T
MutationAssessor
Uncertain
2.3
.;.;M;M;.;.;.;.;.
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-1.1
N;.;.;.;.;.;.;.;.
REVEL
Benign
0.28
Sift
Benign
0.056
T;.;.;.;.;.;.;.;.
Sift4G
Benign
0.22
T;D;.;T;T;T;T;.;.
Polyphen
1.0, 0.79
.;.;D;P;.;.;.;.;.
Vest4
0.45
MVP
0.75
ClinPred
0.012
T
GERP RS
4.8
Varity_R
0.19
gMVP
0.34

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs62622410; hg19: chr10-73406348; COSMIC: COSV54938802; API