2-73986576-G-GT

Variant names:

• chr2-73986576-G-GT
• NM_001287491.2:c.174dupT

Variant summary

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

The NM_001287491.2(TET3):​c.174dupT​(p.Thr59TyrfsTer3) 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 Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TET3 NM_001287491.2 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: -0.105

Genes affected

TET3 (HGNC:28313): (tet methylcytosine dioxygenase 3) Enables methyl-CpG binding activity and zinc ion binding activity. Involved in histone H3-K4 trimethylation; positive regulation of transcription by RNA polymerase II; and protein O-linked glycosylation. Predicted to be located in cytoplasm and male pronucleus. Predicted to be active in nucleus. Biomarker of esophagus squamous cell carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000235499 (HGNC:):

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 2-73986576-G-GT is Pathogenic according to our data. Variant chr2-73986576-G-GT is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2663463.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TET3	NM_001287491.2	c.174dupT	p.Thr59TyrfsTer3	frameshift_variant	Exon 2 of 12	ENST00000409262.8	NP_001274420.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TET3	ENST00000409262.8	c.174dupT	p.Thr59TyrfsTer3	frameshift_variant	Exon 2 of 12	1	NM_001287491.2	ENSP00000386869.3
TET3	ENST00000496886.1	n.52dupT		non_coding_transcript_exon_variant	Exon 1 of 2	3
ENSG00000235499	ENST00000441217.1	n.*233_*234insT		downstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Pathogenic:1

Oct 01, 2023

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Has not been previously published as pathogenic or benign to our knowledge; No data available from control populations to assess the frequency of this variant -

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-74213703;