11-108353831-G-C
Variant summary
Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM5PP3_Strong
The NM_000051.4(ATM):c.8737G>C(p.Asp2913His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging 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. D2913E) has been classified as Uncertain significance.
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 8 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.8737G>C | p.Asp2913His | missense_variant | Exon 60 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ATM | ENST00000675843.1 | c.8737G>C | p.Asp2913His | missense_variant | Exon 60 of 63 | NM_000051.4 | ENSP00000501606.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251460 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461830Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727220 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Uncertain:2
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; This variant is associated with the following publications: (PMID: 33436325, 28652578, 23532176)
not specified Uncertain:1
Variant summary: ATM c.8737G>C (p.Asp2913His) 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 all suggest that this variant is likely to be disruptive. The variant allele was found at a frequency of 4e-06 in 251460 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.8737G>C has been observed in at least one individual affected with Prostate Cancer (Karlsson_2021). These report(s) do not provide unequivocal conclusions about association of the variant with Prostate Cancer. A different variant affecting the same codon has been classified as likely pathogenic by our lab (c.8737G>T, p.Asp2913Tyr), supporting the critical relevance of codon 2913 to ATM protein function. 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: 33436325). ClinVar contains an entry for this variant (Variation ID: 231464). Based on the evidence outlined above, the variant was classified as uncertain significance.
Ataxia-telangiectasia syndrome Uncertain:1
This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 2913 of the ATM protein (p.Asp2913His). This variant is present in population databases (rs756899044, gnomAD 0.0009%). This missense change has been observed in individual(s) with prostate cancer (PMID: 33436325). ClinVar contains an entry for this variant (Variation ID: 231464). 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 expected to disrupt ATM protein function with a positive predictive value of 95%. This variant disrupts the p.Asp2913 amino acid residue in ATM. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 21665257, 22071889). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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.
Familial cancer of breast Uncertain:1
Hereditary cancer-predisposing syndrome Uncertain:1
The p.D2913H variant (also known as c.8737G>C), located in coding exon 59 of the ATM gene, results from a G to C substitution at nucleotide position 8737. The aspartic acid at codon 2913 is replaced by histidine, an amino acid with similar properties. A different alteration at this position, p.D2913Y, has been reported in multiple individuals with a clinical diagnosis of ataxia-telangiectasia in both homozygous and compound heterozygous states (Micol R et al. J. Allergy Clin. Immunol. 2011 Aug;128:382-9). Cell lines from an individual with ataxia telangiectasia who was heterozygous for p.D2913Y along with a second alteration in ATM, exhibited decreased response to ionizing radiation, decreased ATM protein expression, and abnormal cellular localization (Jacquemin V et al. Eur. J. Hum. Genet. 2012 Mar;20:305-12). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at