10-71646475-G-A

Position:

• chr10-71646475-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_022124.6(CDH23):​c.1307G>A​(p.Ser436Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00324 in 1,613,778 control chromosomes in the GnomAD database, including 6 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 0.0024 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0033 (6 hom.)
• Consequence: CDH23 NM_022124.6 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:12
• Conservation: PhyloP100: 7.06

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]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.007903039).
• BP6: Variant 10-71646475-G-A is Benign according to our data. Variant chr10-71646475-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 45866.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Benign=3, Uncertain_significance=2}. Variant chr10-71646475-G-A is described in Lovd as [Benign]. Variant chr10-71646475-G-A is described in Lovd as [Likely_benign].
• BS2: High Homozygotes in GnomAdExome4 at 6 AD,AR,Digenic gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDH23	NM_022124.6	c.1307G>A	p.Ser436Asn	missense_variant	14/70	ENST00000224721.12	NP_071407.4
CDH23	NM_001171930.2	c.1307G>A	p.Ser436Asn	missense_variant	14/32		NP_001165401.1
CDH23	NM_001171931.2	c.1307G>A	p.Ser436Asn	missense_variant	14/26		NP_001165402.1
CDH23	NM_052836.4	c.1307G>A	p.Ser436Asn	missense_variant	14/14		NP_443068.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12	c.1307G>A	p.Ser436Asn	missense_variant	14/70	5	NM_022124.6	ENSP00000224721	P1

Frequencies

GnomAD3 genomes AF: 0.00237 AC: 360 AN: 152060 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000387

Gnomad AMI AF: 0.0186

Gnomad AMR AF: 0.000982

Gnomad ASJ AF: 0.000289

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00254

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00416

Gnomad OTH AF: 0.000479

GnomAD3 exomes AF: 0.00276 AC: 688 AN: 249072 Hom.: 3 AF XY: 0.00286 AC XY: 387 AN XY: 135104

Gnomad AFR exome AF: 0.000581

Gnomad AMR exome AF: 0.000551

Gnomad ASJ exome AF: 0.000497

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000588

Gnomad FIN exome AF: 0.00209

Gnomad NFE exome AF: 0.00519

Gnomad OTH exome AF: 0.000992

GnomAD4 exome AF: 0.00333 AC: 4874 AN: 1461600 Hom.: 6 Cov.: 31 AF XY: 0.00323 AC XY: 2346 AN XY: 727066

Gnomad4 AFR exome AF: 0.000627

Gnomad4 AMR exome AF: 0.000738

Gnomad4 ASJ exome AF: 0.000497

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000557

Gnomad4 FIN exome AF: 0.00189

Gnomad4 NFE exome AF: 0.00406

Gnomad4 OTH exome AF: 0.00240

GnomAD4 genome AF: 0.00237 AC: 360 AN: 152178 Hom.: 0 Cov.: 33 AF XY: 0.00219 AC XY: 163 AN XY: 74422

Gnomad4 AFR AF: 0.000386

Gnomad4 AMR AF: 0.000980

Gnomad4 ASJ AF: 0.000289

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00254

Gnomad4 NFE AF: 0.00416

Gnomad4 OTH AF: 0.000474

Alfa AF: 0.00333 Hom.: 2

Bravo AF: 0.00222

TwinsUK AF: 0.00405 AC: 15

ALSPAC AF: 0.00389 AC: 15

ESP6500AA AF: 0.000730 AC: 3

ESP6500EA AF: 0.00404 AC: 34

ExAC AF: 0.00354 AC: 428

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00414

EpiControl AF: 0.00356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:12

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Benign:6

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Oct 23, 2023	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 31, 2019	This variant is associated with the following publications: (PMID: 16679490, 23804846, 22135276, 32707200) -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2023	CDH23: BS2 -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

not specified Benign:3

Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Oct 11, 2013	Ser436Asn in Exon 14A of CDH23: This variant is not expected to have clinical si gnificance because it has been identified in 0.4% (34/8406) of European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http ://evs.gs.washington.edu/EVS; dbSNP rs111033369). -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Mar 25, 2016	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -

Usher syndrome type 1D Uncertain:1 Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	May 18, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Autosomal recessive nonsyndromic hearing loss 12 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

CDH23-related disorder Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 20, 2020

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Usher syndrome type 1 Benign:1

Benign, no assertion criteria provided

clinical testing

Natera, Inc.

Oct 30, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.28
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.019	T;T;T;.;.;.;T;.;.
Eigen	Uncertain	0.67
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.92	D;D;D;D;D;D;D;D;D
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.0079	T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.55	T
MutationAssessor	Benign	0.48	.;.;N;N;.;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	-0.12	N;.;.;.;.;N;.;.;.
REVEL	Benign	0.23
Sift	Benign	0.12	T;.;.;.;.;T;.;.;.
Sift4G	Uncertain	0.035	D;D;.;T;D;T;D;.;.
Polyphen		0.99, 1.0	.;.;D;D;.;.;.;.;.
Vest4		0.67
MVP		0.88
ClinPred		0.020	T
GERP RS		5.5
Varity_R		0.13
gMVP		0.53

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

Other links and lift over

dbSNP: rs111033369; hg19: chr10-73406232; COSMIC: COSV54922955;