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

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

7
4
7

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:2

Conservation

PhyloP100: 9.50

Publications

5 publications found
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]
CDH23 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 12
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Usher syndrome type 1
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Usher syndrome type 1D
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.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
CDH23ENST00000224721.12 linkc.9886G>A p.Asp3296Asn missense_variant Exon 70 of 70 5 NM_022124.6 ENSP00000224721.9

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152260
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000290
AC:
7
AN:
241210
AF XY:
0.00000758
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000883
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000568
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000276
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1458674
Hom.:
0
Cov.:
31
AF XY:
0.00000965
AC XY:
7
AN XY:
725530
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33428
American (AMR)
AF:
0.0000450
AC:
2
AN:
44396
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26040
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39638
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85872
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52190
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1111070
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60276
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152260
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74398
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41480
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000232
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000413
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Pituitary adenoma 5, multiple types Pathogenic:1
Sep 27, 2017
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

Usher syndrome type 1 Uncertain:1
Sep 16, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

not provided Uncertain:1
Sep 15, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.014
T;T;.;.
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Pathogenic
0.31
D
MetaRNN
Uncertain
0.48
T;T;T;T
MetaSVM
Uncertain
0.41
D
MutationAssessor
Benign
0.0
.;L;.;.
PhyloP100
9.5
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
0.0
.;.;.;N
REVEL
Benign
0.0
Sift
Pathogenic
0.0
.;.;.;D
Sift4G
Pathogenic
0.0
D;.;D;D
Vest4
0.72
ClinPred
0.55
D
GERP RS
5.1
Varity_R
0.46
gMVP
0.63
Mutation Taster
=37/63
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs372388344; hg19: chr10-73574856; API