chr10-71798371-G-T

Variant names:

• chr10-71798371-G-T
• rs41281334
• NM_022124.6:c.6847G>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_022124.6(CDH23):​c.6847G>T​(p.Val2283Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V2283I) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CDH23 NM_022124.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.95
• Publications: 18 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

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.828

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.6847G>T	p.Val2283Phe	missense	Exon 50 of 70	NP_071407.4
	CDH23	NM_001171933.1		c.127G>T	p.Val43Phe	missense	Exon 3 of 23	NP_001165404.1	Q9H251-7
	CDH23	NM_001171934.1		c.127G>T	p.Val43Phe	missense	Exon 3 of 22	NP_001165405.1	Q9H251-9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDH23	ENST00000224721.12	TSL:5 MANE Select	c.6847G>T	p.Val2283Phe	missense	Exon 50 of 70	ENSP00000224721.9	Q9H251-1
	CDH23	ENST00000475158.1	TSL:1	n.383G>T		non_coding_transcript_exon	Exon 2 of 21
	CDH23	ENST00000642965.1		n.*690G>T		non_coding_transcript_exon	Exon 5 of 25	ENSP00000495222.1	A0A2R8Y6D5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461480 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727054

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111672

Other (OTH) AF: 0.00 AC: 0 AN: 60364

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 609

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.56
BayesDel_addAF	Pathogenic	0.16	D
BayesDel_noAF	Uncertain	0.0
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.19	T
Eigen	Benign	-0.094
Eigen_PC	Benign	-0.10
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.073	D
MetaRNN	Pathogenic	0.83	D
MetaSVM	Benign	-0.31	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		4.0
PrimateAI	Benign	0.27	T
PROVEAN	Uncertain	-3.1	D
REVEL	Uncertain	0.59
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0040	D
Polyphen		0.88	P
Vest4		0.83
MutPred		0.72		Gain of catalytic residue at V2283 (P = 0.0516)
MVP		0.79
MPC		0.32
ClinPred		0.97	D
GERP RS		3.2
Varity_R		0.21
gMVP		0.84
Mutation Taster		=73/27	polymorphism

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: rs41281334; hg19: chr10-73558128;