11-108332875-T-G
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2
The NM_000051.4(ATM):c.7902T>G(p.Asp2634Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,612,966 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. D2634V) has been classified as Uncertain significance.
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.7902T>G | p.Asp2634Glu | missense_variant | Exon 53 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152216Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000798 AC: 2AN: 250606 AF XY: 0.00000738 show subpopulations
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1460750Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 726728 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152216Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74368 show subpopulations
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
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This sequence change replaces aspartic acid, which is acidic and polar, with glutamic acid, which is acidic and polar, at codon 2634 of the ATM protein (p.Asp2634Glu). This variant is present in population databases (rs373147078, gnomAD 0.007%). 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: 220528). 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 ATM protein function with a negative 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. -
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces aspartic acid with glutamic acid at codon 2634 of the ATM protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 2/250606 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
The p.D2634E variant (also known as c.7902T>G), located in coding exon 52 of the ATM gene, results from a T to G substitution at nucleotide position 7902. The aspartic acid at codon 2634 is replaced by glutamic acid, 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. -
ATM-related disorder Uncertain:1
The ATM c.7902T>G variant is predicted to result in the amino acid substitution p.Asp2634Glu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0062% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-108203602-T-G) and is interpreted as uncertain significance in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/220528/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at