chr10-71682520-A-G

Variant names:

• chr10-71682520-A-G
• rs1390562340
• NM_022124.6:c.1934A>G

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PM2 PM5 PP3_Strong PP5_Moderate

The NM_022124.6(CDH23):​c.1934A>G​(p.Asp645Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 11/19 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D645N) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CDH23 NM_022124.6 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.29
• Publications: 2 publications found

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

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr10-71682519-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 3265262.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.99
• PP5: Variant 10-71682520-A-G is Pathogenic according to our data. Variant chr10-71682520-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 446443.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022124.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	NM_022124.6	MANE Select	c.1934A>G	p.Asp645Gly	missense	Exon 18 of 70	NP_071407.4
	CDH23	NM_001171930.2		c.1934A>G	p.Asp645Gly	missense	Exon 18 of 32	NP_001165401.1
	CDH23	NM_001171931.2		c.1934A>G	p.Asp645Gly	missense	Exon 18 of 26	NP_001165402.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	ENST00000224721.12	TSL:5 MANE Select	c.1934A>G	p.Asp645Gly	missense	Exon 18 of 70	ENSP00000224721.9
	CDH23	ENST00000616684.4	TSL:5	c.1934A>G	p.Asp645Gly	missense	Exon 18 of 32	ENSP00000482036.2
	CDH23	ENST00000398809.9	TSL:5	c.1934A>G	p.Asp645Gly	missense	Exon 18 of 32	ENSP00000381789.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 12 Pathogenic:1

Jul 01, 2017

Division of Hearing and Balance Research, National Hospital Organization Tokyo Medical Center

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.49	D
BayesDel_noAF	Pathogenic	0.47
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Pathogenic	0.99
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Pathogenic	0.89	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	0.59	D
MutationAssessor	Pathogenic	4.5	H
PhyloP100		9.3
PrimateAI	Uncertain	0.67	T
REVEL	Pathogenic	0.96
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.93		Gain of glycosylation at P650 (P = 0.1121)
MVP		0.89
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.65
gMVP		0.90
Mutation Taster		=5/95	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1390562340; hg19: chr10-73442277;