chr10-71682453-G-A

Variant names:

• chr10-71682453-G-A
• rs143782870
• NM_022124.6:c.1867G>A

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_022124.6(CDH23):​c.1867G>A​(p.Val623Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,611,794 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). The gene CDH23 is included in the ClinGen Criteria Specification Registry.

• Frequency:
  • Genomes: 𝑓 0.000098 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00018 (3 hom.)
• Consequence: CDH23 NM_022124.6 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3 B:1
• Conservation: PhyloP100: 9.56
• Publications: 3 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
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Usher syndrome type 1D

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Usher syndrome type 1

  Inheritance: Unknown, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Specifications for CDH23 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Our verdict: Benign. The variant received -13 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.038256645).
• BP6: Variant 10-71682453-G-A is Benign according to our data. Variant chr10-71682453-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 178301.
• BS1: Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000176 (257/1459482) while in subpopulation SAS AF = 0.0018 (154/85630). AF 95% confidence interval is 0.00157. There are 3 homozygotes in GnomAdExome4. There are 170 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 3 AR,Unknown gene

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	NM_022124.6	MANE Select	c.1867G>A	p.Val623Ile	missense	Exon 18 of 70	NP_071407.4
	CDH23	NM_001171930.2		c.1867G>A	p.Val623Ile	missense	Exon 18 of 32	NP_001165401.1	A0A087WYR8
	CDH23	NM_001171931.2		c.1867G>A	p.Val623Ile	missense	Exon 18 of 26	NP_001165402.1	Q8N5B3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	ENST00000224721.12	TSL:5 MANE Select	c.1867G>A	p.Val623Ile	missense	Exon 18 of 70	ENSP00000224721.9	Q9H251-1
	CDH23	ENST00000616684.4	TSL:5	c.1867G>A	p.Val623Ile	missense	Exon 18 of 32	ENSP00000482036.2	A0A087WYR8
	CDH23	ENST00000398809.9	TSL:5	c.1867G>A	p.Val623Ile	missense	Exon 18 of 32	ENSP00000381789.5	A0A0A0MS94

Frequencies

GnomAD3 genomes AF: 0.0000986 AC: 15 AN: 152194 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00124

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000225 AC: 55 AN: 244672 AF XY: 0.000301

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000587

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000126

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000176 AC: 257 AN: 1459482 Hom.: 3 Cov.: 31 AF XY: 0.000234 AC XY: 170 AN XY: 725780

African (AFR) AF: 0.0000299 AC: 1 AN: 33452

American (AMR) AF: 0.0000450 AC: 2 AN: 44460

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26062

East Asian (EAS) AF: 0.00 AC: 0 AN: 39642

South Asian (SAS) AF: 0.00180 AC: 154 AN: 85630

European-Finnish (FIN) AF: 0.0000188 AC: 1 AN: 53246

Middle Eastern (MID) AF: 0.000174 AC: 1 AN: 5744

European-Non Finnish (NFE) AF: 0.0000846 AC: 94 AN: 1110944

Other (OTH) AF: 0.0000663 AC: 4 AN: 60302

GnomAD4 genome AF: 0.0000985 AC: 15 AN: 152312 Hom.: 0 Cov.: 33 AF XY: 0.0000940 AC XY: 7 AN XY: 74478

African (AFR) AF: 0.0000241 AC: 1 AN: 41568

American (AMR) AF: 0.0000653 AC: 1 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00124 AC: 6 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10608

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.000109 Hom.: 0

Bravo AF: 0.0000680

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000519 AC: 2

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000120 AC: 1

ExAC AF: 0.000306 AC: 37

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal recessive nonsyndromic hearing loss 12;C1832845:Usher syndrome type 1D;C4539685:Pituitary adenoma 5, multiple types (1)
-	-	1	not provided (1)
-	1	-	not specified (1)
-	1	-	Usher syndrome type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.014	T
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.038	T
MetaSVM	Benign	-0.53	T
MutationAssessor	Benign	1.5	L
PhyloP100		9.6
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-0.33	N
REVEL	Benign	0.15
Sift	Benign	0.13	T
Sift4G	Benign	0.072	T
Polyphen		0.89	P
Vest4		0.61
MVP		0.76
ClinPred		0.39	T
GERP RS		5.3
Varity_R		0.15
gMVP		0.27
Mutation Taster		=37/63	disease causing

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: rs143782870; hg19: chr10-73442210; COSMIC: COSV99821620;