2-218890304-G-T

Variant names:

• chr2-218890304-G-T
• rs121908118
• NM_025216.3:c.697G>T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_025216.3(WNT10A):​c.697G>T​(p.Glu233*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: WNT10A NM_025216.3 stop_gained
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 9.81

Genes affected

WNT10A (HGNC:13829): (Wnt family member 10A) The WNT gene family consists of structurally related genes which encode secreted signaling proteins. These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate and patterning during embryogenesis. This gene is a member of the WNT gene family. It is strongly expressed in the cell lines of promyelocytic leukemia and Burkitt's lymphoma. In addition, it and another family member, the WNT6 gene, are strongly coexpressed in colorectal cancer cell lines. The gene overexpression may play key roles in carcinogenesis through activation of the WNT-beta-catenin-TCF signaling pathway. This gene and the WNT6 gene are clustered in the chromosome 2q35 region. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 12 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 2-218890304-G-T is Pathogenic according to our data. Variant chr2-218890304-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 4460.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-218890304-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNT10A	NM_025216.3	c.697G>T	p.Glu233*	stop_gained	Exon 3 of 4	ENST00000258411.8	NP_079492.2
WNT10A	XM_011511929.3	c.601G>T	p.Glu201*	stop_gained	Exon 4 of 5		XP_011510231.1
WNT10A	XM_011511930.2	c.377-2470G>T		intron_variant	Intron 2 of 2		XP_011510232.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WNT10A	ENST00000258411.8	c.697G>T	p.Glu233*	stop_gained	Exon 3 of 4	1	NM_025216.3	ENSP00000258411.3
WNT10A	ENST00000458582.1	c.263-2470G>T		intron_variant	Intron 1 of 1	3		ENSP00000388812.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Odonto-onycho-dermal dysplasia;C1835492:Tooth agenesis, selective, 4 Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 13, 2022

This sequence change creates a premature translational stop signal (p.Glu233*) in the WNT10A gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in WNT10A are known to be pathogenic (PMID: 17847007, 22581971, 25629078). This variant is not present in population databases (gnomAD no frequency). For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. ClinVar contains an entry for this variant (Variation ID: 4460). This premature translational stop signal has been observed in individual(s) with clinical features of autosomal recessive ectodermal dysplasia (PMID: 17847007, 28813618). -

Odonto-onycho-dermal dysplasia Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 01, 2007

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.65
CADD	Pathogenic	45
DANN	Uncertain	1.0
Eigen	Pathogenic	1.2
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
Vest4		0.93
GERP RS		4.5

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		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: rs121908118; hg19: chr2-219755026;