rs786204121
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.38G>A(p.Arg13His) variant causes a missense change. The variant allele was found at a frequency of 0.0000116 in 1,461,568 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R13C) has been classified as Uncertain significance.
Frequency
Consequence
NM_000051.4 missense
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/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.38G>A | p.Arg13His | missense_variant | 2/63 | ENST00000675843.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ATM | ENST00000675843.1 | c.38G>A | p.Arg13His | missense_variant | 2/63 | NM_000051.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251386Hom.: 0 AF XY: 0.0000294 AC XY: 4AN XY: 135868
GnomAD4 exome AF: 0.0000116 AC: 17AN: 1461568Hom.: 0 Cov.: 30 AF XY: 0.0000138 AC XY: 10AN XY: 727094
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:3
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Jan 11, 2021 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 19, 2023 | This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 13 of the ATM protein (p.Arg13His). This variant is present in population databases (rs778201041, gnomAD 0.003%). This missense change has been observed in individual(s) with breast cancer (PMID: 31780696). ClinVar contains an entry for this variant (Variation ID: 188171). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | Jun 27, 2017 | - - |
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Jan 04, 2024 | This missense variant replaces arginine with histidine at codon 13 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 (PMID: 28779002, 31780696). This variant has also been reported in an individual affected with ataxia-telangiectasia who was compound heterozygous for a truncation variant in the non-sense mediated decay region and a variant impacting a canonical +2 splice site, suggesting this variant may not be disease-causing (DOI: 10.37897/RJN.2021.2.11). This variant has been identified in 4/251386 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Aug 08, 2023 | The p.R13H variant (also known as c.38G>A), located in coding exon 1 of the ATM gene, results from a G to A substitution at nucleotide position 38. The arginine at codon 13 is replaced by histidine, an amino acid with highly similar properties. This variant has been identified in breast cancer cohorts (Dutil J et al. Sci Rep, 2019 11;9:17769; Decker B et al. J Med Genet, 2017 11;54:732-741). This amino acid position is 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 provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Jun 16, 2023 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in at least three individuals with breast cancer (Decker et al., 2017); Reported as a variant of uncertain significance in an individual with ataxia-telangectasia who was also heterozygous for two other variants in the ATM gene plausibly explaining the phenotype (Villagaray-Pacheco et al., 2021); This variant is associated with the following publications: (PMID: 22895193, 29445900, 31780696, 28779002, Villagaray-Pacheco2021[Case Report]) - |
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Mar 26, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at