rs576688801
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_004655.4(AXIN2):c.2018C>T(p.Thr673Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,455,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T673P) has been classified as Uncertain significance.
Frequency
Consequence
NM_004655.4 missense
Scores
Clinical Significance
Conservation
Publications
- oligodontia-cancer predisposition syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
- tooth agenesisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- craniosynostosisInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| AXIN2 | ENST00000307078.10 | c.2018C>T | p.Thr673Ile | missense_variant | Exon 8 of 11 | 1 | NM_004655.4 | ENSP00000302625.5 | ||
| AXIN2 | ENST00000375702.5 | c.1823C>T | p.Thr608Ile | missense_variant | Exon 6 of 9 | 1 | ENSP00000364854.5 | |||
| AXIN2 | ENST00000618960.4 | c.1823C>T | p.Thr608Ile | missense_variant | Exon 7 of 10 | 5 | ENSP00000478916.1 | |||
| AXIN2 | ENST00000578251.1 | n.240C>T | non_coding_transcript_exon_variant | Exon 1 of 3 | 3 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD2 exomes AF: 0.00000817 AC: 2AN: 244684 AF XY: 0.0000150 show subpopulations
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1455190Hom.: 0 Cov.: 33 AF XY: 0.00000276 AC XY: 2AN XY: 724354 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Oligodontia-cancer predisposition syndrome Uncertain:1
This variant has not been reported in the literature in individuals affected with AXIN2-related conditions. ClinVar contains an entry for this variant (Variation ID: 464590). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt AXIN2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 673 of the AXIN2 protein (p.Thr673Ile). This variant is present in population databases (no rsID available, gnomAD 0.006%). -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.T673I variant (also known as c.2018C>T), located in coding exon 7 of the AXIN2 gene, results from a C to T substitution at nucleotide position 2018. The threonine at codon 673 is replaced by isoleucine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at