rs878854715
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2
The NM_004655.4(AXIN2):c.1031A>G(p.Asn344Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,614,046 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N344T) 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: Likely_benign. The variant received -3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
AXIN2 | ENST00000307078.10 | c.1031A>G | p.Asn344Ser | missense_variant | Exon 4 of 11 | 1 | NM_004655.4 | ENSP00000302625.5 | ||
ENSG00000266076 | ENST00000577662.1 | n.*1207A>G | non_coding_transcript_exon_variant | Exon 6 of 7 | 2 | ENSP00000462418.1 | ||||
ENSG00000266076 | ENST00000577662.1 | n.*1207A>G | 3_prime_UTR_variant | Exon 6 of 7 | 2 | ENSP00000462418.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152194Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461852Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5AN XY: 727234 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152194Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74350 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Oligodontia-cancer predisposition syndrome Uncertain:1
This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 344 of the AXIN2 protein (p.Asn344Ser). This variant is present in population databases (no rsID available, gnomAD 0.01%). 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: 239973). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt AXIN2 protein function with a positive predictive value of 80%. 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. -
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 15735151) -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.N344S variant (also known as c.1031A>G), located in coding exon 3 of the AXIN2 gene, results from an A to G substitution at nucleotide position 1031. The asparagine at codon 344 is replaced by serine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. 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