2-218881047-C-CCG

Variant names:

• chr2-218881047-C-CCG
• NM_025216.3:c.55_56dupCG

Variant summary

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

The NM_025216.3(WNT10A):​c.55_56dupCG​(p.Pro20GlyfsTer44) 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 (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: WNT10A NM_025216.3 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 1.18

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 does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 35 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-218881047-C-CCG is Pathogenic according to our data. Variant chr2-218881047-C-CCG is described in ClinVar as [Pathogenic]. Clinvar id is 1076644.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNT10A	NM_025216.3	c.55_56dupCG	p.Pro20GlyfsTer44	frameshift_variant	Exon 1 of 4	ENST00000258411.8	NP_079492.2
WNT10A	XM_011511930.2	c.55_56dupCG	p.Pro20GlyfsTer44	frameshift_variant	Exon 1 of 3		XP_011510232.1
WNT10A	XM_011511929.3	c.18-1111_18-1110dupCG		intron_variant	Intron 2 of 4		XP_011510231.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WNT10A	ENST00000258411.8	c.55_56dupCG	p.Pro20GlyfsTer44	frameshift_variant	Exon 1 of 4	1	NM_025216.3	ENSP00000258411.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

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

Oct 31, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

For these reasons, this variant has been classified as Pathogenic. This variant has not been reported in the literature in individuals affected with WNT10A-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Pro20Glyfs*44) 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). -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-219745769;