rs587779825
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM1BP4_Moderate
The NM_000051.4(ATM):c.2578G>A(p.Asp860Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,972 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D860G) has been classified as Likely benign.
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 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.2578G>A | p.Asp860Asn | missense_variant | Exon 17 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152112Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000239 AC: 6AN: 251438 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461860Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727234 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152112Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74308 show subpopulations
Age Distribution
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 asparagine, which is neutral and polar, at codon 860 of the ATM protein (p.Asp860Asn). This variant is present in population databases (rs587779825, gnomAD 0.03%). This missense change has been observed in individual(s) with a personal and/or family history of breast and/or ovarian cancer (PMID: 29470806, 30287823). ClinVar contains an entry for this variant (Variation ID: 127354). 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
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The p.D860N variant (also known as c.2578G>A), located in coding exon 16 of the ATM gene, results from a G to A substitution at nucleotide position 2578. The aspartic acid at codon 860 is replaced by asparagine, an amino acid with highly similar properties. This variant was observed in 2/7051 unselected female breast cancer patients and was not observed in 11241 female controls of Japanese ancestry (Momozawa Y et al. Nat Commun, 2018 10;9:4083). This variant was also observed in a study of 1010 unrelated Indian patients with breast and/or ovarian cancer (Singh J et al. Breast Cancer Res. Treat., 2018 Jul;170:189-196). 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
This variant is denoted ATM c.2578G>A at the cDNA level, p.Asp860Asn (D860N) at the protein level, and results in the change of an Aspartic Acid to an Asparagine (GAT>AAT). This variant has not, to our knowledge, been published in the literature as pathogenic or benign. ATM Asp860Asn was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. This variant is a semi-conservative substitution in which a negative polar amino acid is replaced with a neutral polar one, altering a position that is well conserved throughout evolution and is not located in a known functional domain. In silico analyses are inconsistent with regard to the effect this variant may have on protein structure and function. Based on the currently available information, we consider ATM Asp860Asn to be a variant of uncertain significance. -
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