rs587782163
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.3040G>A(p.Ala1014Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,916 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 (★★).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.3040G>A | p.Ala1014Thr | missense_variant | Exon 20 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152124Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000557 AC: 14AN: 251184Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135770
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1461792Hom.: 0 Cov.: 36 AF XY: 0.00000688 AC XY: 5AN XY: 727200
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152124Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74312
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:3
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This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1014 of the ATM protein (p.Ala1014Thr). This variant is present in population databases (rs587782163, gnomAD 0.04%). 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: 141992). 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. -
not specified Uncertain:2
Variant summary: ATM c.3040G>A (p.Ala1014Thr) results in a non-conservative amino acid change located in the ARM repeat domain (IPR016024) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 5.6e-05 in 251184 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in ATM causing Breast Cancer (5.6e-05 vs 0.001), allowing no conclusion about variant significance. c.3040G>A has been reported in the literature in both controls and individuals affected with Breast Cancer (e.g. Weitzel_2020). This report does not provide unequivocal conclusions about association of the variant with Breast Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 31206626). ClinVar contains an entry for this variant (Variation ID: 141992). Based on the evidence outlined above, the variant was classified as uncertain significance. -
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Hereditary cancer-predisposing syndrome Uncertain:2
The p.A1014T variant (also known as c.3040G>A), located in coding exon 19 of the ATM gene, results from a G to A substitution at nucleotide position 3040. The alanine at codon 1014 is replaced by threonine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
This missense variant replaces alanine with threonine at codon 1014 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 ATM-related disorders in the literature. This variant has been identified in 14/251184 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. -
Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast Uncertain:1
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not provided Uncertain:1
The ATM c.3040G>A (p.Ala1014Thr) variant has not been reported in individuals with ATM-related conditions in the published literature. The frequency of this variant in the general population, 0.0004 (14/34582 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. 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. -
ATM-related disorder Uncertain:1
The ATM c.3040G>A variant is predicted to result in the amino acid substitution p.Ala1014Thr. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.040% of alleles in individuals of Latino descent in gnomAD and is interpreted as uncertain in Clinvar (https://www.ncbi.nlm.nih.gov/clinvar/variation/141992/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Familial cancer of breast Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at