rs769064498
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_004655.4(AXIN2):c.211C>T(p.Pro71Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,603,230 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P71A) 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 1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| AXIN2 | NM_004655.4 | c.211C>T | p.Pro71Ser | missense_variant | Exon 2 of 11 | ENST00000307078.10 | NP_004646.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| AXIN2 | ENST00000307078.10 | c.211C>T | p.Pro71Ser | missense_variant | Exon 2 of 11 | 1 | NM_004655.4 | ENSP00000302625.5 | ||
| ENSG00000266076 | ENST00000577662.1 | n.*387C>T | non_coding_transcript_exon_variant | Exon 4 of 7 | 2 | ENSP00000462418.1 | ||||
| ENSG00000266076 | ENST00000577662.1 | n.*387C>T | 3_prime_UTR_variant | Exon 4 of 7 | 2 | ENSP00000462418.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152206Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000138 AC: 2AN: 1451024Hom.: 0 Cov.: 31 AF XY: 0.00000139 AC XY: 1AN XY: 720120 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152206Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74354 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
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 71 of the AXIN2 protein (p.Pro71Ser). This variant is present in population databases (rs769064498, gnomAD 0.007%). 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: 1393425). 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
Colorectal cancer Uncertain:1
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
Hereditary cancer-predisposing syndrome Uncertain:1
The p.P71S variant (also known as c.211C>T), located in coding exon 1 of the AXIN2 gene, results from a C to T substitution at nucleotide position 211. The proline at codon 71 is replaced by serine, an amino acid with 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