chr2-218880998-G-A

Position:

• chr2-218880998-G-A

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1 PS1_Moderate PM2 PP5_Moderate

The NM_025216.3(WNT10A):​c.3G>A​(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.000000703 in 1,421,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: WNT10A NM_025216.3 start_lost
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 3.62

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 14 ACMG points.

• PVS1: Start lost variant, no new inframe start found.
• PS1: Another start lost variant in NM_025216.3 (WNT10A) was described as [Pathogenic] in Lovd
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-218880998-G-A is Pathogenic according to our data. Variant chr2-218880998-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1904869.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WNT10A	NM_025216.3	c.3G>A	p.Met1?	start_lost	1/4	ENST00000258411.8	NP_079492.2
WNT10A	XM_011511930.2	c.3G>A	p.Met1?	start_lost	1/3		XP_011510232.1
WNT10A	XM_011511929.3	c.18-1163G>A		intron_variant			XP_011510231.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WNT10A	ENST00000258411.8	c.3G>A	p.Met1?	start_lost	1/4	1	NM_025216.3	ENSP00000258411	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.03e-7 AC: 1 AN: 1421684 Hom.: 0 Cov.: 31 AF XY: 0.00000142 AC XY: 1 AN XY: 703488

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.16e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

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

Likely pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 16, 2022

This variant is not present in population databases (gnomAD no frequency). This sequence change affects the initiator methionine of the WNT10A mRNA. The next in-frame methionine is located at codon 36. Disruption of the initiator codon has been observed in individual(s) with WNT10A-related conditions (PMID: 23401279). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant disrupts a region of the WNT10A protein in which other variant(s) (p.Leu29Arg) have been observed in individuals with WNT10A-related conditions (PMID: 30974434). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.26
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.044	T
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.071
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.90	D
M_CAP	Pathogenic	0.87	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Benign	-0.74	T
MutationTaster	Benign	1.0	D
PROVEAN	Benign	-0.44	N
REVEL	Uncertain	0.43
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.0060	B
Vest4		0.88
MutPred		0.96		Gain of catalytic residue at M1 (P = 0.0117);
MVP		0.82
ClinPred		0.99	D
GERP RS		3.5
Varity_R		0.87
gMVP		0.46

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: rs111314129; hg19: chr2-219745720;