rs730881328
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_000051.4(ATM):c.8717T>C(p.Val2906Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,006 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 (★★).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.8717T>C | p.Val2906Ala | missense_variant | Exon 60 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152178Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251454Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135896
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461828Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727218
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152178Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74348
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:1
This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 2906 of the ATM protein (p.Val2906Ala). This variant is present in population databases (rs730881328, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with ATM-related conditions. ClinVar contains an entry for this variant (Variation ID: 181901). 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 ATM protein function with a positive predictive value of 95%. 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
This variant is denoted ATM c.8717T>C at the cDNA level, p.Val2906Ala (V2906A) at the protein level, and results in the change of a Valine to an Alanine (GTT>GCT). This variant has not, to our knowledge, been published in the literature as pathogenic or benign. ATM Val2906Ala was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Since Valine and Alanine share similar properties, this is considered a conservative amino acid substitution. ATM Val2906Ala occurs at a position that is well conserved across species and is located in the PI3K/PI4K domain (UniProt). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on currently available information, it is unclear whether ATM Val2906Ala is pathogenic or benign. We consider it to be a variant of uncertain significance. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.V2906A variant (also known as c.8717T>C), located in coding exon 59 of the ATM gene, results from a T to C substitution at nucleotide position 8717. The valine at codon 2906 is replaced by alanine, 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 deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at