rs141921797
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_000051.4(ATM):c.4082A>G(p.Gln1361Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000552 in 1,613,460 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 Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.4082A>G | p.Gln1361Arg | missense_variant | Exon 27 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000263 AC: 40AN: 152234Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000483 AC: 12AN: 248700Hom.: 0 AF XY: 0.0000446 AC XY: 6AN XY: 134634
GnomAD4 exome AF: 0.0000329 AC: 48AN: 1461108Hom.: 0 Cov.: 30 AF XY: 0.0000344 AC XY: 25AN XY: 726880
GnomAD4 genome AF: 0.000269 AC: 41AN: 152352Hom.: 0 Cov.: 32 AF XY: 0.000242 AC XY: 18AN XY: 74504
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:3
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This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 1361 of the ATM protein (p.Gln1361Arg). This variant is present in population databases (rs141921797, gnomAD 0.06%). This missense change has been observed in individual(s) with breast cancer, colon cancer, and/or melanoma (PMID: 29684080, 31206626, 34262154, 36898365). ClinVar contains an entry for this variant (Variation ID: 185234). 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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not provided Uncertain:2Benign:1
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Observed in individuals with melanoma, prostate, colorectal, breast, and renal cancer (PMID: 29684080, 34262154, 35264596, 36898365, 31206626); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 23555315, 29684080, 31871109, 34262154, 35264596, 36898365, 39324485, 31206626) -
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Familial cancer of breast Uncertain:2Benign:1
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.4082A>G (p.Gln1361Arg) missense change has a maximum subpopulation frequency of 0.060% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. This variant was reported in five individuals in a study of breast cancer, however it was not specified if the variant was found in cases or controls (PMID: 31871109). This variant is present in nine individuals 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. -
A variant of uncertain significance was detected in the ATM gene. This sequence change replaces glutamine with arginine at codon 1361 of the ATM protein (p.Gln1361Arg). This variant is present in population databases (rs141921797, ExAC 0.07%). This variant has been observed in individual(s) with breast cancer (PMID: 23555315). ClinVar contains an entry for this variant (Variation ID: 185234). In-silico predictions show benign computational verdict based on 9 benign predictions from PolyPhen, BayesDel_addAF, DEOGEN2, EIGEN, LIST-S2, MVP, MutationTaster, PrimateAI and SIFT vs 4 pathogenic predictions from DANN, FATHMM-MKL, M-CAP and MutationAssessor and the position is not highly conserved. Therefore, it has been classified as a Variant of Uncertain Significance. Heterozygous pathogenic/likely pathogenic mutations in ATM gene cause breast cancer susceptibility (OMIM#114480). -
not specified Uncertain:2
Variant summary: ATM c.4082A>G (p.Gln1361Arg) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4.8e-05 in 248700 control chromosomes, predominantly at a frequency of 0.00062 within the African or African-American subpopulation in the gnomAD database. This frequency is not significantly higher than estimated for a pathogenic variant in ATM causing Breast Cancer (4.8e-05 vs 0.001), allowing no conclusion about variant significance. In addition, this variant has also been reported in 4/7325 European American and 5/2559 African American (i.e. with an allele frequency of 0.000977) women who were older than age 70 and cancer free (in the FLOSSIES database). The variant, c.4082A>G, has also been reported in the literature in cohorts of individuals affected with various tumor phenotypes, but without providing information on the associated phenotypes (examples: Haiman_2013, Yehia_2018, Adedokun_2020 and Dalmasso_2021). These report(s) do 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 publications have been ascertained in the context of this evaluation (PMID: 23555315, 29684080, 31871109, 34262154). ClinVar contains an entry for this variant (Variation ID: 185234). Based on the evidence outlined above, the variant was classified as uncertain significance. -
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
This missense variant replaces glutamine with arginine at codon 1361 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 an individual affected with melanoma (PMID: 34262154) and five carriers in a breast cancer case-control study, however the cancer status of the carriers were not specified (PMID: 31871109). This variant also has been reported in 9 individuals age 70 years or older without cancer (FLOSSIES; https://whi.color.com/variant/11-108158415-A-G). This variant has been identified in 17/280106 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. -
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
ATM-related disorder Uncertain:1
The ATM c.4082A>G variant is predicted to result in the amino acid substitution p.Gln1361Arg. This variant was reported in several individuals with breast cancer (Table 5, Adedokun et al. 2020. PubMed ID: 31871109; Supp. Table 3, Guindalini et al. 2022. PubMed ID: 35264596; Table 3, Weitzel et al. 2019. PubMed ID: 31206626), in an individual with sporadic melanoma (Table S2, Dalmasso et al. 2021. PubMed ID: 34262154), and in an individual with Cowden syndrome (Table S9, Yehia et al. 2018. PubMed ID: 29684080). This variant is reported in 0.060% of alleles in individuals of African descent in gnomAD and is interpreted as a variant of uncertain significance by the vast majority of submitters in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/185234/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Familial colorectal cancer type X Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at