rs1554876358

Variant names:

• chr10-71803354-C-T
• rs1554876358
• NM_022124.6:c.7806C>T

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 2P and 11B. PM2 BP4_Moderate BP6_Very_Strong BP7

The NM_022124.6(CDH23):​c.7806C>T​(p.Ile2602Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CDH23 NM_022124.6 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.0670
• Publications: 0 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: Benign. The variant received -9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.28).
• BP6: Variant 10-71803354-C-T is Benign according to our data. Variant chr10-71803354-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 506221.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.067 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH23	NM_022124.6	c.7806C>T	p.Ile2602Ile	synonymous_variant	Exon 55 of 70	ENST00000224721.12	NP_071407.4
CDH23	NM_001171933.1	c.1086C>T	p.Ile362Ile	synonymous_variant	Exon 8 of 23		NP_001165404.1
CDH23	NM_001171934.1	c.1086C>T	p.Ile362Ile	synonymous_variant	Exon 8 of 22		NP_001165405.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH23	ENST00000224721.12	c.7806C>T	p.Ile2602Ile	synonymous_variant	Exon 55 of 70	5	NM_022124.6	ENSP00000224721.9

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1446756 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 718248

African (AFR) AF: 0.00 AC: 0 AN: 32912

American (AMR) AF: 0.00 AC: 0 AN: 43060

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25790

East Asian (EAS) AF: 0.00 AC: 0 AN: 38580

South Asian (SAS) AF: 0.00 AC: 0 AN: 83364

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52208

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1105224

Other (OTH) AF: 0.00 AC: 0 AN: 59864

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Dec 05, 2017

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

p.Ile2602Ile in exon 55 of CDH23: This variant is not expected to have clinical significance because it does not alter an amino acid residue, it is not located within the splice consensus sequence, and it is not predicted to impact splicing . ACMG/AMP Criteria applied: BP4, BP7. -

not provided Benign:1

Feb 14, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.28
CADD	Benign	10
DANN	Benign	0.80
PhyloP100		0.067

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1554876358; hg19: chr10-73563111;