rs397517361

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022124.6(CDH23):​c.8726G>A​(p.Ser2909Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,611,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 2.13
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13236153).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.8726G>A p.Ser2909Asn missense_variant Exon 61 of 70 ENST00000224721.12 NP_071407.4 Q9H251-1Q6P152
CDH23NM_001171933.1 linkc.2006G>A p.Ser669Asn missense_variant Exon 14 of 23 NP_001165404.1 Q9H251-7
CDH23NM_001171934.1 linkc.2006G>A p.Ser669Asn missense_variant Exon 14 of 22 NP_001165405.1 Q9H251-9
LOC124902446XR_007062185.1 linkn.2070C>T non_coding_transcript_exon_variant Exon 2 of 2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH23ENST00000224721.12 linkc.8726G>A p.Ser2909Asn missense_variant Exon 61 of 70 5 NM_022124.6 ENSP00000224721.9 Q9H251-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
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:
0.000192
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
GnomAD3 exomes
AF:
0.00000807
AC:
2
AN:
247778
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134580
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1459468
Hom.:
0
Cov.:
32
AF XY:
0.00000276
AC XY:
2
AN XY:
725818
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152318
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000826
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Apr 11, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Jun 20, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 2909 of the CDH23 protein (p.Ser2909Asn). This variant is present in population databases (rs397517361, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with CDH23-related conditions. ClinVar contains an entry for this variant (Variation ID: 46052). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The asparagine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

not specified Uncertain:1
Mar 09, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The Ser2909Asn variant in CDH23 has not been reported in affected individuals or in large population studies. Computational analyses (biochemical amino acid pro perties, conservation, AlignGVGD, PolyPhen2) suggest that the Ser2909Asn variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In summary, additional information is needed to fully assess the clinical significance of the variant. -

Inborn genetic diseases Uncertain:1
Mar 15, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.8726G>A (p.S2909N) alteration is located in exon 61 (coding exon 60) of the CDH23 gene. This alteration results from a G to A substitution at nucleotide position 8726, causing the serine (S) at amino acid position 2909 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Usher syndrome type 1 Uncertain:1
Apr 17, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
13
DANN
Benign
0.95
DEOGEN2
Benign
0.025
T;T;.;.
Eigen
Benign
-0.63
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.76
T;T;T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.13
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
.;L;.;.
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.020
.;.;.;N
REVEL
Benign
0.031
Sift
Benign
0.21
.;.;.;T
Sift4G
Benign
0.43
T;.;T;T
Polyphen
0.0
.;B;.;.
Vest4
0.18
MutPred
0.39
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;.;
MVP
0.69
MPC
0.13
ClinPred
0.050
T
GERP RS
2.4
Varity_R
0.042
gMVP
0.24

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: rs397517361; hg19: chr10-73569580; API