rs1162974793
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_004655.4(AXIN2):c.365T>G(p.Leu122Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,614,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004655.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
AXIN2 | ENST00000307078.10 | c.365T>G | p.Leu122Arg | missense_variant | Exon 2 of 11 | 1 | NM_004655.4 | ENSP00000302625.5 | ||
ENSG00000266076 | ENST00000577662.1 | n.*541T>G | non_coding_transcript_exon_variant | Exon 4 of 7 | 2 | ENSP00000462418.1 | ||||
ENSG00000266076 | ENST00000577662.1 | n.*541T>G | 3_prime_UTR_variant | Exon 4 of 7 | 2 | ENSP00000462418.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152120Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251496Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135922
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461892Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727248
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152120Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74310
ClinVar
Submissions by phenotype
not provided Uncertain:2
The AXIN2 c.365T>G (p.Leu122Arg) variant has been reported in at least one individual with colorectal cancer (PMID: 28944238 (2017)). The frequency of this variant in the general population, 0.000004 (1/251496 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Observed in an individual with colorectal cancer (PMID: 28944238); This variant is associated with the following publications: (PMID: 28944238, 15735151) -
Oligodontia-cancer predisposition syndrome Uncertain:1
This variant has not been reported in the literature in individuals affected with AXIN2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.006%). This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 122 of the AXIN2 protein (p.Leu122Arg). ClinVar contains an entry for this variant (Variation ID: 464622). 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. 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on AXIN2 protein function. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.L122R variant (also known as c.365T>G), located in coding exon 1 of the AXIN2 gene, results from a T to G substitution at nucleotide position 365. The leucine at codon 122 is replaced by arginine, an amino acid with dissimilar properties. This alteration was identified in an individual diagnosed with colorectal cancer (DeRycke MS et al. Mol Genet Genomic Med, 2017 Sep;5:553-569). This amino acid position is well 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