chr16-68681080-TG-T

Position:

• chr16-68681080-TG-T

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001793.6(CDH3):​c.981del​(p.Met327IlefsTer23) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CDH3 NM_001793.6 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: -1.37

Genes affected

CDH3 (HGNC:1762): (cadherin 3) This gene encodes a classical cadherin of the cadherin superfamily. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature glycoprotein. This calcium-dependent cell-cell adhesion protein is comprised of five extracellular cadherin repeats, a transmembrane region and a highly conserved cytoplasmic tail. This gene is located in a gene cluster in a region on the long arm of chromosome 16 that is involved in loss of heterozygosity events in breast and prostate cancer. In addition, aberrant expression of this protein is observed in cervical adenocarcinomas. Mutations in this gene are associated with hypotrichosis with juvenile macular dystrophy and ectodermal dysplasia, ectrodactyly, and macular dystrophy syndrome (EEMS). [provided by RefSeq, Nov 2015]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-68681080-TG-T is Pathogenic according to our data. Variant chr16-68681080-TG-T is described in ClinVar as [Pathogenic]. Clinvar id is 17638.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDH3	NM_001793.6	c.981del	p.Met327IlefsTer23	frameshift_variant	8/16	ENST00000264012.9	NP_001784.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH3	ENST00000264012.9	c.981del	p.Met327IlefsTer23	frameshift_variant	8/16	1	NM_001793.6	ENSP00000264012	P1
CDH3	ENST00000429102.6	c.981del	p.Met327IlefsTer23	frameshift_variant	8/16	1		ENSP00000398485
CDH3	ENST00000542274.5	c.*719del		3_prime_UTR_variant, NMD_transcript_variant	7/15	2		ENSP00000464021
CDH3	ENST00000569036.2	c.*278del		3_prime_UTR_variant, NMD_transcript_variant	4/5	4		ENSP00000464058

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Hypotrichosis with juvenile macular dystrophy Pathogenic:1

Pathogenic, no assertion criteria provided

research

Sharon lab, Hadassah-Hebrew University Medical Center

Jun 23, 2019

- -

Congenital hypotrichosis with juvenile macular dystrophy Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 01, 2001

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
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

Publications

LitVar

Other links and lift over

dbSNP: rs724159984; hg19: chr16-68714983;