rs746945284
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.5369A>G(p.Asp1790Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. D1790H) 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
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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.5369A>G | p.Asp1790Gly | missense_variant | Exon 36 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 250996 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461156Hom.: 0 Cov.: 30 AF XY: 0.00000550 AC XY: 4AN XY: 726898 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
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This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 1790 of the ATM protein (p.Asp1790Gly). This variant is present in population databases (rs746945284, gnomAD 0.02%). This missense change has been observed in individual(s) with breast cancer (PMID: 30287823, 35218119). ClinVar contains an entry for this variant (Variation ID: 631466). 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. 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. -
Hereditary cancer-predisposing syndrome Uncertain:2
The p.D1790G variant (also known as c.5369A>G), located in coding exon 35 of the ATM gene, results from an A to G substitution at nucleotide position 5369. The aspartic acid at codon 1790 is replaced by glycine, an amino acid with similar properties. This alteration has been reported with a carrier frequency of 0.00057 in 7051 unselected breast cancer patients and 0.00053 in 11241 female controls of Japanese ancestry (Momozawa Y et al. Nat Commun, 2018 10;9:4083). This alteration has also been reported with a carrier frequency of 0.00013 in 7636 unselected prostate cancer patients and 0.00024 in 12366 male controls of Japanese ancestry (Momozawa Y et al. J Natl Cancer Inst, 2020 Apr;112:369-376). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
This missense variant replaces aspartic acid with glycine at codon 1790 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 as well as in unaffected controls (PMID: 30287823, 33471991). This variant has been identified in 4/250996 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. -
not specified Uncertain:1
Variant summary: ATM c.5369A>G (p.Asp1790Gly) results in a non-conservative amino acid change in the encoded protein sequence. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change. The variant allele was found at a frequency of 1.6e-05 in 250996 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.5369A>G has been observed in individual(s) affected with Breast Cancer (Kasugai_2022). These report(s) do not provide unequivocal conclusions about association of the variant with Breast Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 35218119). ClinVar contains an entry for this variant (Variation ID: 631466). Based on the evidence outlined above, the variant was classified as uncertain significance. -
not provided Uncertain:1
In silico analysis supports that this missense variant does not alter protein structure/function; Case control studies suggest this variant is not significantly associated with breast cancer (Momozawa 2018); This variant is associated with the following publications: (PMID: 29338689, 30287823) -
Familial cancer of breast Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at