rs587782506
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_000051.4(ATM):c.4802G>A(p.Ser1601Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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 |
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ATM | NM_000051.4 | c.4802G>A | p.Ser1601Asn | missense_variant | Exon 32 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152126Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000279 AC: 7AN: 251276Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135792
GnomAD4 exome AF: 0.0000322 AC: 47AN: 1461574Hom.: 0 Cov.: 31 AF XY: 0.0000371 AC XY: 27AN XY: 727114
GnomAD4 genome AF: 0.0000328 AC: 5AN: 152244Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74434
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2Benign:2
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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. -
The c.4802G>A (p.Ser1601Asn) variant has an allele frequency of 0.000029 (0.003%, 7/236,740 alleles) in the gnomAD v2.1.1 non-cancer dataset, with a maximal frequency of 0.000058 (0.006%, 2/34,254 alleles) in the Latino / Admixed American subpopulation (no population frequency criterion met; http://gnomad.broadinstitute.org). It is not predicted to lead to a splicing alteration as per SPiCE predictor and no splicing site is created/activated according to at least 3 splicing predictors of the set SpliceSiteFinderlike - MaxEntScan - NNSplice - GeneSplicer. Also, this missense variant does not alter the protein function / structure on the in-silico prediction reports of REVEL and Vest4 (BP4). There is no other supporting data that meet criteria for consideration. Therefore, the clinical significance of this variant is uncertain. Adapted ACMG/AMP rules applied as defined by the Spanish ATM working group: BP4 (PMID: 33280026). -
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not provided Uncertain:3
Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is higher than would generally be expected for pathogenic variants in this gene (http://gnomad.broadinstitute.org). Computational tools predict that this variant is not damaging. -
Observed in individuals with breast cancer, melanoma, or leukemia, and also in unaffected control subjects (PMID: 19404735, 21933854, 28779002, 33471991, 34262154); In silico analysis indicates that this missense variant does not alter protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 19404735, 21933854, 11443540, 28779002, 33280026, 33471991, 34262154) -
The ATM c.4802G>A (p.Ser1601Asn) variant has been reported in the published literature in individuals with melanoma (PMID: 34262154 (2021)), ovarian cancer (PMID: 33280026 (2021)), breast cancer (PMID: 28779002 (2017), 33471991 (2021), 19404735 (2010), see also LOVD (http://databases.lovd.nl/shared)), and chronic lymphocytic leukemia (CLL) (PMID: 21933854 (2011)). This variant has also been identified in reportedly healthy individuals (PMID: 34262154 (2021), 33471991 (2021), 33471991 (2021), 19404735 (2010), see also LOVD (http://databases.lovd.nl/shared)), see also LOVD (http://databases.lovd.nl/shared)). The frequency of this variant in the general population, 0.013 (4/316 chromosomes in Middle Eastern subpopulation (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is higher than would generally be expected for pathogenic variants in this gene. 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. -
Ataxia-telangiectasia syndrome Uncertain:1Benign:2
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not specified Uncertain:1
Variant summary: ATM c.4802G>A (p.Ser1601Asn) 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 3.2e-05 in 251834 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.4802G>A has been reported in the literature in individuals with a variety of ATM-related cancers such as BRCA1/2-negative breast cancer, 11q deletion Chronic Lymphocytic Leukemia (CLL) (example, Pagila_2010, Skowronska_2011). These report(s) do not provide unequivocal conclusions about association of the variant with Ataxia-Telangiectasia/Breast/ATM-related cancers. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Seven clinical diagnostic laboratories and the Spanish ATM Cancer Susceptibility Variant Interpretation Working Group have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Multiple submitters reported the variant with conflicting assessments (VUS, n=4; likely benign, n=4). Based on the evidence outlined above, the variant was classified as uncertain significance. -
ATM-related disorder Uncertain:1
The ATM c.4802G>A variant is predicted to result in the amino acid substitution p.Ser1601Asn. This variant has been reported in individuals with leukemia, polyposis, breast and ovarian cancer (Paglia et al. 2009. PubMed ID: 19404735; Skowronska et al. 2011. PubMed ID: 21933854. Table S1; Decker et al. 2017. PubMed ID: 28779002. Table S5; Feliubadaló et al. 2021. PubMed ID: 33280026. Table S3 and S4). This variant is reported in 0.0058% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-108165679-G-A). In ClinVar, this variant has conflicting interpretations of likely benign and uncertain significance (https://www.ncbi.nlm.nih.gov/clinvar/variation/142501/). 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