11-108365368-A-G
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM1BP4
The NM_000051.4(ATM):āc.9031A>Gā(p.Met3011Val) variant causes a missense change. The variant allele was found at a frequency of 0.000039 in 1,614,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.9031A>G | p.Met3011Val | missense_variant | Exon 63 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152178Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000398 AC: 10AN: 251442Hom.: 0 AF XY: 0.0000515 AC XY: 7AN XY: 135896
GnomAD4 exome AF: 0.0000390 AC: 57AN: 1461888Hom.: 0 Cov.: 31 AF XY: 0.0000371 AC XY: 27AN XY: 727244
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152178Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3AN XY: 74320
ClinVar
Submissions by phenotype
not provided Uncertain:4
The ATM c.9031A>G (p.Met3011Val) variant has been reported in the published literature in individuals affected with breast cancer (PMID: 11505391 (2001), 12810666 (2003), 19781682 (2009)), glioblastoma (PMID: 26689913 (2015)), prostate cancer (PMID: 33436325 (2021)), and melanoma (PMID: 34262154 (2021)). This variant has also been identified in reportedly healthy individuals (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/)). The frequency of this variant in the general population, 0.000077 (10/129144 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 conflicting predictions that this variant is deleterious or benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis suggests that this missense variant does not alter protein structure/function; Observed in individuals with a personal and/or family history of melanoma, breast, prostate, or pancreatic cancer (PMID: 11505391, 12810666, 19781682, 33436325, 35047863, 34262154); This variant is associated with the following publications: (PMID: 12810666, 11505391, 19781682, 26689913, 27200287, 25742471, 29641532, 30197789, 33436325, 35047863, 25148578, 37450374, 23532176, 34482403, 34262154) -
The p.Met3011Val (rs372795527) has been reported in several individuals with breast carcinoma or a family history of breast cancer (Tavtigian, 2009; Teraoka, 2001; Thorstenson, 2003); however this variant has not been found associated with ataxia-telangiectasia nor primary immunodeficiency. This variant is listed in the Genome Aggregation Database (gnomAD) with an overall population frequency of 0.004 percent (identified on 11 out of 277,168 chromosomes), and has been reported to the ClinVar database as a variant of unknown significance (VariationID: 181906). The methionine at position 3,011 is moderately conserved considering 9 species (Alamut v2.10) and computational analyses of the p.Met3011Val variant on protein structure and function indicate a neutral effect (SIFT: tolerated, GVGD: class C0, PolyPhen-2: benign). Altogether, there is not enough evidence to classify the p.Met3011Val variant with certainty. -
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Familial cancer of breast Uncertain:2Benign:1
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This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
The ATM c.9031A>G (p.Met3011Val) missense change has a maximum subpopulation frequency of 0.0077% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. This variant has been reported in individuals with a personal and/or family history of breast and/or cancer (PMID: 11505391, 12810666, 19781682). It is absent in a database of women older than 70 years of age who have never had cancer (FLOSSIES database, https://whi.color.com/). To our knowledge, this variant has not been reported in individuals with ataxia telangiectasia. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
Ataxia-telangiectasia syndrome Uncertain:2
This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 3011 of the ATM protein (p.Met3011Val). This variant is present in population databases (rs372795527, gnomAD 0.008%). This missense change has been observed in individual(s) with breast cancer, glioblastoma multiforme, prostate cancer, and pancreatic cancer (PMID: 11505391, 12810666, 19781682, 26689913, 33436325, 35047863). ClinVar contains an entry for this variant (Variation ID: 181906). 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. -
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Hereditary cancer-predisposing syndrome Uncertain:2
The p.M3011V variant (also known as c.9031A>G), located in coding exon 62 of the ATM gene, results from an A to G substitution at nucleotide position 9031. The methionine at codon 3011 is replaced by valine, an amino acid with highly similar properties. This variant has been identified in multiple individuals diagnosed with breast cancer (Teraoka SN et al. Cancer. 2001 Aug;92(3):479-87; Tavtigian SV et al. Am. J. Hum. Genet. 2009 Oct;85(4):427-46). Another study found this alteration in 1 of 270 breast and/or ovarian cancer families (Thorstenson YR et al. Cancer Res. 2003 Jun;63(12):3325-33). This alteration was also reported in 1/5560 prostate cancer cases and in 0/3353 controls of European ancestry (Karlsson Q et al. Eur Urol Oncol, 2021 08;4:570-579). This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
This missense variant replaces methionine with valine at codon 3011 of the ATM protein. Computational prediction suggests that this variant may not impact protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer or prostate cancer (PMID: 11505391, 19781682, 33436325). This variant has been identified in 11/282840 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. -
not specified Uncertain:1
Variant summary: ATM c.9031A>G (p.Met3011Val) results in a conservative amino acid change located in the Phosphatidylinositol 3-/4-kinase, catalytic domain (IPR000403) of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4e-05 in 251442 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in ATM causing Breast Cancer (4e-05 vs 0.001), allowing no conclusion about variant significance. c.9031A>G has been reported in the literature in individuals in individuals affected with or without a family history of Breast Cancer (e.g. Tavtigian_2009, Teraoka_2001, Thorstenson_2003) and Prostate Cancer (e.g. Karlsson_2020). These reports do not provide unequivocal conclusions about association of the variant with Breast Cancer. At-least one co-occurrence with another pathogenic variant has been observed at our laboratory (APC c.487C>T, p.Gln163Ter), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 27200287, 30197789, 33436325, 26689913, 25148578, 19781682, 11505391, 12810666). ClinVar contains an entry for this variant (Variation ID: 181906). Based on the evidence outlined above, the variant was classified as VUS-possibly benign. -
ATM-related disorder Uncertain:1
The ATM c.9031A>G variant is predicted to result in the amino acid substitution p.Met3011Val. This variant has been reported in multiple individuals with various cancers including breast, prostate, melanoma, and spinal chordoma (see for example, Table1, Teraoka et al. 2001. PubMed ID: 11505391; Table S4, Karlsson et al. 2021. PubMed ID: 33436325; Table S4, Siroy et al. 2014. PubMed ID: 25148578; Aleksic et al. 2016. PubMed ID: 27200287). This variant is reported in 0.0077% of alleles in individuals of European (non-Finnish) descent in gnomAD. This variant has been classified as uncertain by other institutions in the ClinVar database (https://www.ncbi.nlm.nih.gov/clinvar/variation/181906/). 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