11-108354834-T-C
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_000051.4(ATM):c.8810T>C(p.Val2937Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. V2937E) 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: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.8810T>C | p.Val2937Ala | missense_variant | Exon 61 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ATM | ENST00000675843.1 | c.8810T>C | p.Val2937Ala | missense_variant | Exon 61 of 63 | NM_000051.4 | ENSP00000501606.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33 show subpopulations
GnomAD4 exome Cov.: 31
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74354 show subpopulations
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:3
This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 2937 of the ATM protein (p.Val2937Ala). This variant is present in population databases (rs587782149, gnomAD 0.1%). This missense change has been observed in individual(s) with chronic lymphocytic leukemia and/or breast cancer (PMID: 24172824, 31780696, 35534704). ClinVar contains an entry for this variant (Variation ID: 141968). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on ATM protein function. 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.
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.
not provided Uncertain:3
The ATM c.8810T>C; p.Val2937Ala variant (rs587782149) is reported in the literature in an individual affected with breast cancer (Dutil 2019) and an individual affected with chronic lymphocytic leukemia (Mansouri 2014). This variant is found on a single chromosome (1/31402 alleles) in the Genome Aggregation Database. The valine at codon 2937 is highly conserved, and computational analyses (SIFT, PolyPhen-2) predict that this variant is deleterious. However, due to limited information, the clinical significance of the p.Val2937Ala variant is uncertain at this time. References: Dutil et al. Germline variants in cancer genes in high-risk non-BRCA patients from Puerto Rico. Sci Rep. 2019 Nov 28;9(1):17769. Mansouri L et al. Feasibility of targeted next-generation sequencing of the TP53 and ATM genes in chronic lymphocytic leukemia. Leukemia. 2014 Mar;28(3):694-6.
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: 24172824, 31780696, 23532176)
Hereditary cancer-predisposing syndrome Uncertain:3
The p.V2937A variant (also known as c.8810T>C), located in coding exon 60 of the ATM gene, results from a T to C substitution at nucleotide position 8810. The valine at codon 2937 is replaced by alanine, an amino acid with similar properties. This alteration has been identified in individuals diagnosed with breast cancer (Dutil J et al. Sci Rep, 2019 11;9:17769; Weitzel JN et al. Cancer, 2019 Aug;125:2829-2836; de Oliveira JM et al. Eur J Hum Genet, 2022 Jul;30:818-823). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.
This missense variant replaces valine with alanine at codon 2937 of the ATM protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, 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: 31780696, 33471991). This variant has been identified in 1/31402 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.8810T>C (p.Val2937Ala) results in a non-conservative amino acid change located in the phosphatidylinositol 3-/4-kinase, catalytic domain (IPR000403) of 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 was absent in 251404 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.8810T>C has been reported in the literature in individual affected with Breast Cancer (Dutil_2019, deOliveira_2022) and chronic lymphocytic leukemia (Mansouri_2013). These reports 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 publications have been ascertained in the context of this evaluation (PMID: 31780696, 24172824, 35534704). ClinVar contains an entry for this variant (Variation ID: 141968). Based on the evidence outlined above, the variant was classified as uncertain significance.
Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast Uncertain:1
Familial cancer of breast Uncertain:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at