rs766850828

Positions:

• chr10-71706888-GC-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_022124.6(CDH23):​c.2954-5delC variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000125 in 1,438,368 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000013 (0 hom.)
• Consequence: CDH23 NM_022124.6 splice_region, intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: -2.06

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 Likely_benign. Variant got -1 ACMG points.

• BP6: Variant 10-71706888-GC-G is Benign according to our data. Variant chr10-71706888-GC-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 506136.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDH23	NM_022124.6	c.2954-5delC		splice_region_variant, intron_variant		ENST00000224721.12	NP_071407.4
CDH23	NM_001171930.2	c.2954-5delC		splice_region_variant, intron_variant			NP_001165401.1
CDH23	NM_001171931.2	c.2954-5delC		splice_region_variant, intron_variant			NP_001165402.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12	c.2954-5delC		splice_region_variant, intron_variant		5	NM_022124.6	ENSP00000224721.9

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000471 AC: 1 AN: 212430 Hom.: 0 AF XY: 0.00000869 AC XY: 1 AN XY: 115072

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000106

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000125 AC: 18 AN: 1438368 Hom.: 0 Cov.: 31 AF XY: 0.0000140 AC XY: 10 AN XY: 713146

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000154

Gnomad4 OTH exome AF: 0.0000168

GnomAD4 genome Cov.: 33

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Sep 14, 2017

The c.2954-5delC variant in CDH23 has not been previously reported in individual s with hearing loss or Usher syndrome, but has been identified in 1/92700 Europe an chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadin stitute.org; dbSNP rs766850828). Although this variant has been seen in the gene ral population, its frequency is not high enough to rule out a pathogenic role. This variant is located in the 3' splice region. Computational tools do not sugg est an impact to splicing. However, this information is not predictive enough to rule out pathogenicity. In summary, the clinical significance of the c.2954-5de lC variant is uncertain. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 19, 2023

- -

Computational scores

Source: dbNSFP v4.3

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

Other links and lift over

dbSNP: rs766850828; hg19: chr10-73466645;