rs572222393

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_022124.6(CDH23):​c.1134+53C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000604 in 1,588,298 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

CDH23
NM_022124.6 intron

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.18

Publications

0 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: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000355 (54/152178) while in subpopulation AFR AF = 0.00111 (46/41504). AF 95% confidence interval is 0.000854. There are 0 homozygotes in GnomAd4. There are 25 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.1134+53C>A intron_variant Intron 11 of 69 ENST00000224721.12 NP_071407.4 Q9H251-1Q6P152

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH23ENST00000224721.12 linkc.1134+53C>A intron_variant Intron 11 of 69 5 NM_022124.6 ENSP00000224721.9 Q9H251-1

Frequencies

GnomAD3 genomes
AF:
0.000355
AC:
54
AN:
152060
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
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:
0.00144
GnomAD2 exomes
AF:
0.000101
AC:
21
AN:
207824
AF XY:
0.0000709
show subpopulations
Gnomad AFR exome
AF:
0.00136
Gnomad AMR exome
AF:
0.0000663
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000213
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000292
AC:
42
AN:
1436120
Hom.:
0
Cov.:
31
AF XY:
0.0000266
AC XY:
19
AN XY:
713100
show subpopulations
African (AFR)
AF:
0.000940
AC:
31
AN:
32976
American (AMR)
AF:
0.0000482
AC:
2
AN:
41478
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25774
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38686
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83598
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45152
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5708
European-Non Finnish (NFE)
AF:
0.00000453
AC:
5
AN:
1103028
Other (OTH)
AF:
0.0000670
AC:
4
AN:
59720
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.527
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.000355
AC:
54
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74406
show subpopulations
African (AFR)
AF:
0.00111
AC:
46
AN:
41504
American (AMR)
AF:
0.000327
AC:
5
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00142
AC:
3
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.000139
Hom.:
0
Bravo
AF:
0.000332

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Oct 05, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Pro396Gln var iant in CDH23 has not been previously reported in individuals with hearing loss or Usher syndrome, but has been identified in 0.12% (25/21048) of African chromo somes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.o rg; dbSNP rs572222393). Although this variant has been seen in the general popul ation, its frequency is not high enough to rule out a pathogenic role. Computati onal prediction tools and conservation analyses suggest that this variant may no t impact the protein, though this information is not predictive enough to rule o ut pathogenicity. In summary, while the clinical significance of the p.Pro396Gln variant is uncertain, these data suggest that it is more likely to be benign. A CMG/AMP Criteria applied: BP4 (Richards 2015). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.11
DANN
Benign
0.65
PhyloP100
-1.2
PromoterAI
0.0026
Neutral
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: rs572222393; hg19: chr10-73377203; API