11-108267310-C-G
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_000051.4(ATM):āc.2606C>Gā(p.Ala869Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,614,024 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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 -5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.2606C>G | p.Ala869Gly | missense_variant | Exon 17 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000145 AC: 22AN: 152096Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000477 AC: 12AN: 251432Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135894
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461810Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727198
GnomAD4 genome AF: 0.000151 AC: 23AN: 152214Hom.: 0 Cov.: 32 AF XY: 0.000148 AC XY: 11AN XY: 74444
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 glycine, which is neutral and non-polar, at codon 869 of the ATM protein (p.Ala869Gly). This variant is present in population databases (rs145513717, gnomAD 0.05%). This missense change has been observed in individual(s) with pancreatic cancer (PMID: 28726808). ClinVar contains an entry for this variant (Variation ID: 184982). 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 provided Uncertain:3
The ATM c.2606C>G (p.Ala869Gly) variant has been reported in the published literature in individuals with breast cancer (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared)) and pancreatic cancer (PMID: 28726808 (2018)). The frequency of this variant in the general population, 0.00048 (12/24962 chromosomes in African/African American 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. -
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. -
In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 28726808, 35585550) -
Familial cancer of breast Uncertain:1Benign: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]. -
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
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The p.A869G variant (also known as c.2606C>G), located in coding exon 16 of the ATM gene, results from a C to G substitution at nucleotide position 2606. The alanine at codon 869 is replaced by glycine, an amino acid with similar properties. This variant has been identified in an individual with pancreatic cancer (Chaffee KG et al. Genet Med, 2018 01;20:119-127). 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. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
not specified Uncertain:1
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Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at