rs186394654

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_022124.6(CDH23):​c.6648C>T​(p.Ala2216Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00176 in 1,612,516 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0018 ( 4 hom. )

Consequence

CDH23
NM_022124.6 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:6

Conservation

PhyloP100: 0.298

Publications

2 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
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Usher syndrome type 1D
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • Usher syndrome type 1
    Inheritance: Unknown, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • 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: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.28).
BP6
Variant 10-71793576-C-T is Benign according to our data. Variant chr10-71793576-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 46015.
BP7
Synonymous conserved (PhyloP=0.298 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0012 (182/152270) while in subpopulation NFE AF = 0.00198 (135/68030). AF 95% confidence interval is 0.00171. There are 0 homozygotes in GnomAd4. There are 76 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDH23
NM_022124.6
MANE Select
c.6648C>Tp.Ala2216Ala
synonymous
Exon 48 of 70NP_071407.4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDH23
ENST00000224721.12
TSL:5 MANE Select
c.6648C>Tp.Ala2216Ala
synonymous
Exon 48 of 70ENSP00000224721.9Q9H251-1
CDH23
ENST00000642965.1
n.-61C>T
upstream_gene
N/AENSP00000495222.1A0A2R8Y6D5

Frequencies

GnomAD3 genomes
AF:
0.00120
AC:
182
AN:
152152
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000435
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00198
Gnomad OTH
AF:
0.000480
GnomAD2 exomes
AF:
0.00121
AC:
301
AN:
247932
AF XY:
0.00134
show subpopulations
Gnomad AFR exome
AF:
0.000259
Gnomad AMR exome
AF:
0.000377
Gnomad ASJ exome
AF:
0.00140
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000665
Gnomad NFE exome
AF:
0.00198
Gnomad OTH exome
AF:
0.00133
GnomAD4 exome
AF:
0.00181
AC:
2649
AN:
1460246
Hom.:
4
Cov.:
31
AF XY:
0.00180
AC XY:
1309
AN XY:
726204
show subpopulations
African (AFR)
AF:
0.000209
AC:
7
AN:
33468
American (AMR)
AF:
0.000335
AC:
15
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.00142
AC:
37
AN:
26108
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39678
South Asian (SAS)
AF:
0.00103
AC:
89
AN:
86210
European-Finnish (FIN)
AF:
0.000680
AC:
36
AN:
52970
Middle Eastern (MID)
AF:
0.00104
AC:
6
AN:
5766
European-Non Finnish (NFE)
AF:
0.00216
AC:
2403
AN:
1110992
Other (OTH)
AF:
0.000928
AC:
56
AN:
60344
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
134
268
403
537
671
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
88
176
264
352
440
<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:
0.00120
AC:
182
AN:
152270
Hom.:
0
Cov.:
31
AF XY:
0.00102
AC XY:
76
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.000433
AC:
18
AN:
41544
American (AMR)
AF:
0.00105
AC:
16
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000622
AC:
3
AN:
4826
European-Finnish (FIN)
AF:
0.000377
AC:
4
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00198
AC:
135
AN:
68030
Other (OTH)
AF:
0.000475
AC:
1
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
10
20
31
41
51
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00158
Hom.:
0
Bravo
AF:
0.000979
EpiCase
AF:
0.00207
EpiControl
AF:
0.00172

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
4
not provided (5)
-
1
-
Autosomal recessive nonsyndromic hearing loss 12 (1)
-
-
1
not specified (1)
-
-
1
Usher syndrome type 1 (1)
-
1
-
Usher syndrome type 1D (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.28
CADD
Benign
13
DANN
Benign
0.82
PhyloP100
0.30
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs186394654; hg19: chr10-73553333; COSMIC: COSV107305041; COSMIC: COSV107305041; API