rs730881360
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_000051.4(ATM):c.5G>A(p.Ser2Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,280 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S2R) 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: Uncertain_significance. The variant received 1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.5G>A | p.Ser2Asn | missense_variant | Exon 2 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ATM | ENST00000675843.1 | c.5G>A | p.Ser2Asn | missense_variant | Exon 2 of 63 | NM_000051.4 | ENSP00000501606.1 |
Frequencies
GnomAD3 genomes AF: 0.00000659 AC: 1AN: 151826Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461454Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1AN XY: 727058 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000659 AC: 1AN: 151826Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74112 show subpopulations
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 2 of the ATM protein (p.Ser2Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ATM-related conditions. ClinVar contains an entry for this variant (Variation ID: 489566). 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. -
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
This missense variant replaces serine with asparagine at codon 2 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 not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified 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. -
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
not specified Uncertain:1
Variant summary: ATM c.5G>A (p.Ser2Asn) results in a conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant was absent in 251400 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.5G>A in individuals affected with Breast Cancer and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 489566). Based on the evidence outlined above, the variant was classified as uncertain significance. -
not provided Uncertain:1
Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
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