11-108326202-A-G
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_000051.4(ATM):c.6952A>G(p.Lys2318Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. K2318Q) 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 0 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_000051.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | MANE Select | c.6952A>G | p.Lys2318Glu | missense | Exon 47 of 63 | NP_000042.3 | ||
| ATM | NM_001351834.2 | c.6952A>G | p.Lys2318Glu | missense | Exon 48 of 64 | NP_001338763.1 | |||
| C11orf65 | NM_001330368.2 | c.641-17131T>C | intron | N/A | NP_001317297.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| ATM | ENST00000675843.1 | MANE Select | c.6952A>G | p.Lys2318Glu | missense | Exon 47 of 63 | ENSP00000501606.1 | ||
| ATM | ENST00000452508.7 | TSL:1 | c.6952A>G | p.Lys2318Glu | missense | Exon 48 of 64 | ENSP00000388058.2 | ||
| ATM | ENST00000527805.6 | TSL:1 | n.*2016A>G | non_coding_transcript_exon | Exon 45 of 61 | ENSP00000435747.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152118Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000958 AC: 14AN: 1461848Hom.: 0 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 727222 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152118Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74314 show subpopulations
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 2318 of the ATM protein (p.Lys2318Glu). 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: 524290). 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.
not provided Uncertain:1
Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Hereditary cancer-predisposing syndrome Uncertain:1
The p.K2318E variant (also known as c.6952A>G), located in coding exon 46 of the ATM gene, results from an A to G substitution at nucleotide position 6952. The lysine at codon 2318 is replaced by glutamic acid, an amino acid with similar properties. This alteration has been reported in at least one subject in a study of 13087 breast cancer cases and 5488 control individuals in the UK (Decker B et al. J Med Genet, 2017 11;54:732-741). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Familial cancer of breast Uncertain:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at