rs141699123
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_004655.4(AXIN2):c.1900C>T(p.Pro634Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P634A) 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
Genome browser will be placed here
ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_004655.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| AXIN2 | NM_004655.4 | MANE Select | c.1900C>T | p.Pro634Ser | missense | Exon 7 of 11 | NP_004646.3 | ||
| AXIN2 | NM_001363813.1 | c.1713-323C>T | intron | N/A | NP_001350742.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| AXIN2 | ENST00000307078.10 | TSL:1 MANE Select | c.1900C>T | p.Pro634Ser | missense | Exon 7 of 11 | ENSP00000302625.5 | ||
| AXIN2 | ENST00000375702.5 | TSL:1 | c.1713-323C>T | intron | N/A | ENSP00000364854.5 | |||
| AXIN2 | ENST00000618960.4 | TSL:5 | c.1713-323C>T | intron | N/A | ENSP00000478916.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152222Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000439 AC: 11AN: 250782 AF XY: 0.0000295 show subpopulations
GnomAD4 exome AF: 0.0000123 AC: 18AN: 1460890Hom.: 0 Cov.: 34 AF XY: 0.00000826 AC XY: 6AN XY: 726752 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152222Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74376 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
The AXIN2 c.1900C>T (p.Pro634Ser) variant has not been reported in individuals with AXIN2-related conditions in the published literature. The frequency of this variant in the general population, 0.00025 (9/35438 chromosomes in Admixed American subpopulation (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is higher than would generally be expected for pathogenic variants in this gene. 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.
In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Oligodontia-cancer predisposition syndrome Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 634 of the AXIN2 protein (p.Pro634Ser). This variant is present in population databases (rs141699123, gnomAD 0.03%). 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: 464579). 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 not expected to disrupt AXIN2 protein function with a negative 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.
Colorectal cancer;C1837750:Oligodontia-cancer predisposition syndrome Uncertain:1
AXIN2-related disorder Uncertain:1
The AXIN2 c.1900C>T variant is predicted to result in the amino acid substitution p.Pro634Ser. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.025% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/17-63532994-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at