chr11-108250835-G-A
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.1370G>A(p.Arg457Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. R457G) has been classified as Uncertain significance.
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
Publications
- hereditary breast carcinomaInheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics, ClinGen
- ataxia telangiectasiaInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, ClinGen, Laboratory for Molecular Medicine, Orphanet
- hereditary nonpolyposis colon cancerInheritance: AD Classification: MODERATE, LIMITED Submitted by: ClinGen, Ambry Genetics
- prostate cancerInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- sarcomaInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- familial ovarian cancerInheritance: AD Classification: LIMITED Submitted by: ClinGen
- gastric carcinomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
Genome browser will be placed here
ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.1370G>A | p.Arg457Gln | missense_variant | Exon 10 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152102Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251396 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461864Hom.: 0 Cov.: 35 AF XY: 0.00000550 AC XY: 4AN XY: 727228 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152102Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74302 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:3
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 457 of the ATM protein (p.Arg457Gln). This variant is present in population databases (rs780097986, gnomAD 0.01%). This missense change has been observed in individual(s) with breast cancer (PMID: 30287823). ClinVar contains an entry for this variant (Variation ID: 453362). 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:2
- -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 30287823, 35264596) -
Hereditary cancer-predisposing syndrome Uncertain:2
The p.R457Q variant (also known as c.1370G>A), located in coding exon 9 of the ATM gene, results from a G to A substitution at nucleotide position 1370. The arginine at codon 457 is replaced by glutamine, an amino acid with highly similar properties. This alteration was observed with an allele frequency of 0.00028 in 7,051 unselected female breast cancer patients and was not observed in 11,241 female controls of Japanese ancestry (Momozawa Y et al. Nat Commun, 2018 10;9:4083). 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. -
This missense variant replaces arginine with glutamine at codon 457 of the ATM protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer (PMID: 30287823). This variant has been identified in 3/251396 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. -
Familial cancer of breast Uncertain:1
- -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at