10-71793641-G-A

Position:

• chr10-71793641-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PVS1_Moderate PP5_Moderate

The NM_022124.6(CDH23):​c.6712+1G>A variant causes a splice donor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000634 in 1,420,262 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000063 (0 hom.)
• Consequence: CDH23 NM_022124.6 splice_donor, intron
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.63

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 Uncertain_significance. Variant got 4 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.045504224 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
• PP5: Variant 10-71793641-G-A is Pathogenic according to our data. Variant chr10-71793641-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 446448.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr10-71793641-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDH23	NM_022124.6	c.6712+1G>A		splice_donor_variant, intron_variant		ENST00000224721.12	NP_071407.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12	c.6712+1G>A		splice_donor_variant, intron_variant		5	NM_022124.6	ENSP00000224721.9
CDH23	ENST00000642965.1	n.4+1G>A		splice_donor_variant, intron_variant				ENSP00000495222.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000634 AC: 9 AN: 1420262 Hom.: 0 Cov.: 30 AF XY: 0.00000428 AC XY: 3 AN XY: 701102

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000127

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000734

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 12 Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

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

Jul 01, 2017

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Uncertain	0.073	D
BayesDel_noAF	Benign	-0.13
CADD	Pathogenic	35
DANN	Uncertain	1.0
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Pathogenic	0.97	D
GERP RS		4.8

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.93
SpliceAI score (max)		0.99		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.62		Position offset: -17
DS_DL_spliceai		0.99		Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1554874900; hg19: chr10-73553398;