chr11-108331444-A-G
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.7516A>G(p.Arg2506Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,612,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000051.4 missense, splice_region
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.7516A>G | p.Arg2506Gly | missense_variant, splice_region_variant | Exon 51 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000184 AC: 28AN: 152030Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000239 AC: 6AN: 250652Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135590
GnomAD4 exome AF: 0.0000144 AC: 21AN: 1460700Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12AN XY: 726670
GnomAD4 genome AF: 0.000184 AC: 28AN: 152030Hom.: 0 Cov.: 32 AF XY: 0.000189 AC XY: 14AN XY: 74248
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:3
This missense variant replaces arginine with glycine at codon 2506 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 not been reported in individuals affected with ATM-related disorders in the literature. This variant has been identified in 17/281938 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. -
The p.R2506G variant (also known as c.7516A>G), located in coding exon 50 of the ATM gene, results from a A to G substitution at nucleotide position 7516. This variant impacts the first base pair of coding exon 50. The arginine at codon 2506 is replaced by glycine, an amino acid with dissimilar properties. 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 alteration remains unclear. -
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not specified Uncertain:1
Variant summary: ATM c.7516A>G (p.Arg2506Gly) results in a non-conservative amino acid change located in the PIK-related kinase domain (IPR014009) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. Several computational tools predict a significant impact on normal splicing: Two predict the variant creates a 5' donor site. One predict the variant strengthens a cryptic 5' donor site. Three predict the variant strengthens a 3' acceptor site. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 3e-05 in 1612730 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in ATM causing Breast Cancer (3e-05 vs 0.001), allowing no conclusion about variant significance. Additionally, this variant was carried by 2 individuals in the FLOSSIES database (individuals >70 years of age with no personal history of cancer). To our knowledge, no occurrence of c.7516A>G in individuals affected with ATM-related conditions and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 236775). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Ataxia-telangiectasia syndrome Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 2506 of the ATM protein (p.Arg2506Gly). This variant is present in population databases (rs200441272, gnomAD 0.06%). This missense change has been observed in individual(s) with a family history of breast cancer (PMID: 35534704). ClinVar contains an entry for this variant (Variation ID: 236775). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (internal data). 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:1
In silico analysis indicates that this missense variant does not alter protein structure/function; Reported in a patient with a family history of breast cancer (PMID: 35534704); This variant is associated with the following publications: (PMID: 23532176, 35534704) -
ATM-related disorder Uncertain:1
The ATM c.7516A>G variant is predicted to result in the amino acid substitution p.Arg2506Gly. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.060% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-108202171-A-G). It is interpreted as uncertain significance in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/236775/). 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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Ataxia-telangiectasia syndrome;C0006142:Malignant tumor of breast Other:1
Variant interpreted as Uncertain significance and reported on 04-20-2020 by Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at