rs200542052

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_022124.6(CDH23):​c.3361A>G​(p.Ile1121Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,612,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 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: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.27
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]
C10orf105 (HGNC:20304): (chromosome 10 open reading frame 105) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a domain Cadherin 11 (size 105) in uniprot entity CAD23_HUMAN there are 5 pathogenic changes around while only 2 benign (71%) in NM_022124.6
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.32656282).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH23NM_022124.6 linkc.3361A>G p.Ile1121Val missense_variant Exon 28 of 70 ENST00000224721.12 NP_071407.4 Q9H251-1Q6P152
C10orf105NM_001164375.3 linkc.*3131T>C 3_prime_UTR_variant Exon 2 of 2 ENST00000441508.4 NP_001157847.1 Q8TEF2
CDH23NM_001171930.2 linkc.3361A>G p.Ile1121Val missense_variant Exon 28 of 32 NP_001165401.1 Q9H251A0A087WYR8Q6P152
C10orf105NM_001168390.2 linkc.*3131T>C 3_prime_UTR_variant Exon 2 of 2 NP_001161862.1 Q8TEF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH23ENST00000224721.12 linkc.3361A>G p.Ile1121Val missense_variant Exon 28 of 70 5 NM_022124.6 ENSP00000224721.9 Q9H251-1
C10orf105ENST00000441508 linkc.*3131T>C 3_prime_UTR_variant Exon 2 of 2 1 NM_001164375.3 ENSP00000403151.2 Q8TEF2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1459744
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
725998
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000225
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
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:
152258
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Mar 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1121 of the CDH23 protein (p.Ile1121Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CDH23-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CDH23 protein function with a negative predictive value of 95%. 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
Benign
0.11
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0036
T;T;T;T;.
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.055
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.83
T;T;T;T;T
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.33
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.53
.;.;N;.;.
PrimateAI
Benign
0.43
T
REVEL
Benign
0.19
Sift4G
Benign
0.14
T;T;.;T;.
Polyphen
0.0020
.;.;B;.;.
Vest4
0.43
MutPred
0.49
Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);
MVP
0.73
ClinPred
1.0
D
GERP RS
4.9
Varity_R
0.15
gMVP
0.29

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs200542052; hg19: chr10-73472562; COSMIC: COSV99818512; API