10-71803030-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_022124.6(CDH23):c.7615G>C(p.Gly2539Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,613,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 9.48

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.829

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH23	NM_022124.6 link	c.7615G>C	p.Gly2539Arg	missense_variant	Exon 54 of 70	ENST00000224721.12	NP_071407.4	Q9H251-1Q6P152
CDH23	NM_001171933.1 link	c.895G>C	p.Gly299Arg	missense_variant	Exon 7 of 23		NP_001165404.1	Q9H251-7
CDH23	NM_001171934.1 link	c.895G>C	p.Gly299Arg	missense_variant	Exon 7 of 22		NP_001165405.1	Q9H251-9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12 link	c.7615G>C	p.Gly2539Arg	missense_variant	Exon 54 of 70	5	NM_022124.6	ENSP00000224721.9		Q9H251-1

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000401

AC:

AN:

249116

Hom.:

AF XY:

0.0000444

AC XY:

AN XY:

135140

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000580

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000620

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461612

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727076

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.000115

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74372

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000675

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000120

AC:

ExAC

AF:

0.0000496

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 28, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Gly2539Arg variant in CDH23 has not been reported in the literature nor prev iously identified by our laboratory. This variant has been identified in 1/8346 (0.01%) European American chromosomes from a broad, though clinically unspecifie d population (NHLBI Exome Sequencing Project; http://evs.gs.washington.edu/EVS). Although this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. Computational analyses (biochemi cal amino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Gly2539Arg variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, additional data is needed to determine the clinical significance of this variant. -

Inborn genetic diseases

Uncertain:1

Oct 05, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.7615G>C (p.G2539R) alteration is located in exon 54 (coding exon 53) of the CDH23 gene. This alteration results from a G to C substitution at nucleotide position 7615, causing the glycine (G) at amino acid position 2539 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Usher syndrome type 1

Uncertain:1

Oct 28, 2019

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Uncertain:1

Sep 24, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine with arginine at codon 2539 of the CDH23 protein (p.Gly2539Arg). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and arginine. This variant is present in population databases (rs373649718, ExAC 0.009%). This variant has not been reported in the literature in individuals with CDH23-related conditions. ClinVar contains an entry for this variant (Variation ID: 46035). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C15"). 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

Pathogenic

0.72

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.26

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.12

T;T;.;.

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.96

D;D;D;D

M_CAP

Uncertain

0.25

MetaRNN

Pathogenic

0.83

D;D;D;D

MetaSVM

Uncertain

0.14

MutationAssessor

Pathogenic

3.4

.;M;.;.

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-3.8

.;.;.;D

REVEL

Pathogenic

0.72

Sift

Uncertain

0.022

.;.;.;D

Sift4G

Pathogenic

0.0

D;.;D;D

Polyphen

1.0

.;D;.;.

Vest4

0.88

MVP

0.90

MPC

0.68

ClinPred

0.81

GERP RS

5.0

Varity_R

0.95

gMVP

0.72

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over