chr17-65549521-C-T
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2
The NM_004655.4(AXIN2):c.955G>A(p.Val319Ile) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,612,576 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004655.4 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
AXIN2 | NM_004655.4 | c.955G>A | p.Val319Ile | missense_variant, splice_region_variant | 3/11 | ENST00000307078.10 | NP_004646.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
AXIN2 | ENST00000307078.10 | c.955G>A | p.Val319Ile | missense_variant, splice_region_variant | 3/11 | 1 | NM_004655.4 | ENSP00000302625 | P1 | |
AXIN2 | ENST00000375702.5 | c.955G>A | p.Val319Ile | missense_variant, splice_region_variant | 2/9 | 1 | ENSP00000364854 | |||
AXIN2 | ENST00000618960.4 | c.955G>A | p.Val319Ile | missense_variant, splice_region_variant | 3/10 | 5 | ENSP00000478916 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152212Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000402 AC: 1AN: 248566Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 134340
GnomAD4 exome AF: 0.00000548 AC: 8AN: 1460364Hom.: 0 Cov.: 32 AF XY: 0.00000551 AC XY: 4AN XY: 726308
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74368
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Aug 15, 2021 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Nov 02, 2023 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports 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
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 02, 2024 | This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 319 of the AXIN2 protein (p.Val319Ile). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 464651). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | May 31, 2022 | - - |
Colorectal cancer Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Nov 13, 2023 | - - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Oct 21, 2022 | The p.V319I variant (also known as c.955G>A), located in coding exon 2 of the AXIN2 gene, results from a G to A substitution at nucleotide position 955. The valine at codon 319 is replaced by isoleucine, 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