rs111033490

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_022124.6(CDH23):​c.4620C>A​(p.Asn1540Lys) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000125 in 1,606,014 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N1540N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense, splice_region

Scores

2
8
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.556

Publications

3 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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.4620C>A p.Asn1540Lys missense_variant, splice_region_variant Exon 38 of 70 ENST00000224721.12 NP_071407.4 Q9H251-1Q6P152

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH23ENST00000224721.12 linkc.4620C>A p.Asn1540Lys missense_variant, splice_region_variant Exon 38 of 70 5 NM_022124.6 ENSP00000224721.9 Q9H251-1
CDH23ENST00000398792.3 linkn.1309C>A splice_region_variant, non_coding_transcript_exon_variant Exon 9 of 9 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000424
AC:
1
AN:
235762
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000948
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.88e-7
AC:
1
AN:
1453798
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
722298
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33314
American (AMR)
AF:
0.00
AC:
0
AN:
43896
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25816
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39512
South Asian (SAS)
AF:
0.0000118
AC:
1
AN:
84672
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52876
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1107864
Other (OTH)
AF:
0.00
AC:
0
AN:
60090
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.275
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

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:
152216
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41450
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000118
AC:
1
ExAC
AF:
0.00000826
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.79
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.42
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;T
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.51
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Pathogenic
0.91
D
MetaRNN
Uncertain
0.65
D;D
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Uncertain
2.1
.;M
PhyloP100
-0.56
PrimateAI
Uncertain
0.77
T
REVEL
Uncertain
0.48
Sift4G
Uncertain
0.018
D;.
Polyphen
1.0
.;D
Vest4
0.83
MutPred
0.75
Gain of ubiquitination at N1540 (P = 0.0109);Gain of ubiquitination at N1540 (P = 0.0109);
MVP
0.72
ClinPred
0.95
D
GERP RS
-3.1
Varity_R
0.25
gMVP
0.61
Mutation Taster
=54/46
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.89
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.89
Position offset: 2

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

Publications

Other links and lift over

dbSNP: rs111033490; hg19: chr10-73501453; API