Genetic Variant CDH23:p.Ser2909Ile (chr10-71809823-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022124.6(CDH23):c.8726G>T(p.Ser2909Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S2909N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CDH23
NM_022124.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.13

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

CDH23 links:

LOC124902446 (HGNC:):

LOC124902446 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2233532).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
CDH23	NM_022124.6 link	c.8726G>T	p.Ser2909Ile	missense_variant	Exon 61 of 70	ENST00000224721.12	NP_071407.4
CDH23	NM_001171933.1 link	c.2006G>T	p.Ser669Ile	missense_variant	Exon 14 of 23		NP_001165404.1
CDH23	NM_001171934.1 link	c.2006G>T	p.Ser669Ile	missense_variant	Exon 14 of 22		NP_001165405.1
LOC124902446	XR_007062185.1 link	n.2070C>A		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12 link	c.8726G>T	p.Ser2909Ile	missense_variant	Exon 61 of 70	5	NM_022124.6	ENSP00000224721.9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459468

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725818

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33460

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52182

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110982

Other (OTH)

AF:

0.00

AC:

AN:

60326

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.027

T;T;.;.

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.39

FATHMM_MKL

Benign

0.31

LIST_S2

Benign

0.81

T;T;T;T

M_CAP

Benign

0.044

MetaRNN

Benign

0.22

T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.0

.;L;.;.

PhyloP100

2.1

PrimateAI

Uncertain

0.52

PROVEAN

Benign

0.0

.;.;.;N

REVEL

Benign

0.0

Sift

Pathogenic

0.0

.;.;.;T

Sift4G

Benign

0.070

T;.;T;T

Vest4

0.57

ClinPred

0.10

GERP RS

2.4

Varity_R

0.097

gMVP

0.34

Mutation Taster

=89/11

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over