rs748187466

Variant names:

• chr10-71734648-G-T
• rs748187466
• NM_022124.6:c.4207-8G>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_022124.6(CDH23):​c.4207-8G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000473 in 1,479,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. 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 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000045 (0 hom.)
• Consequence: CDH23 NM_022124.6 splice_region, intron
• Scores: Splicing: ADA: 0.0002095
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.754
• 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]

C10orf105 (HGNC:20304): (chromosome 10 open reading frame 105) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 10-71734648-G-T is Benign according to our data. Variant chr10-71734648-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 228494.

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.4207-8G>T		splice_region intron	N/A	NP_071407.4
	C10orf105	NM_001168390.2		c.-6+3080C>A		intron	N/A	NP_001161862.1	Q8TEF2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	ENST00000224721.12	TSL:5 MANE Select	c.4207-8G>T		splice_region intron	N/A	ENSP00000224721.9	Q9H251-1
	C10orf105	ENST00000398786.2	TSL:2	c.-6+3080C>A		intron	N/A	ENSP00000381766.3	Q8TEF2
	CDH23	ENST00000398792.3	TSL:2	n.898+307G>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152238 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000203 AC: 5 AN: 246802 AF XY: 0.0000149

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000452 AC: 6 AN: 1327586 Hom.: 0 Cov.: 29 AF XY: 0.00000304 AC XY: 2 AN XY: 658180

African (AFR) AF: 0.00 AC: 0 AN: 30428

American (AMR) AF: 0.000148 AC: 6 AN: 40558

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 22020

East Asian (EAS) AF: 0.00 AC: 0 AN: 27744

South Asian (SAS) AF: 0.00 AC: 0 AN: 84132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 39568

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5124

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1025788

Other (OTH) AF: 0.00 AC: 0 AN: 52224

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152238 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74368

African (AFR) AF: 0.00 AC: 0 AN: 41466

American (AMR) AF: 0.0000654 AC: 1 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000189

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	4.6
DANN	Benign	0.86
PhyloP100		0.75

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00021
dbscSNV1_RF	Benign	0.0
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: rs748187466; hg19: chr10-73494405;