11-108321399-G-C
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000051.4(ATM):c.6551G>C(p.Ser2184Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000297 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6551G>C | p.Ser2184Thr | missense_variant | Exon 45 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000119 AC: 3AN: 251442Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135884
GnomAD4 exome AF: 0.0000322 AC: 47AN: 1461862Hom.: 0 Cov.: 31 AF XY: 0.0000289 AC XY: 21AN XY: 727232
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74346
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
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This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 2184 of the ATM protein (p.Ser2184Thr). This variant is present in population databases (rs374551964, gnomAD 0.003%). 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: 181980). 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. -
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces serine with threonine at codon 2184 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). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 3/251442 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. -
The p.S2184T variant (also known as c.6551G>C), located in coding exon 44 of the ATM gene, results from a G to C substitution at nucleotide position 6551. The serine at codon 2184 is replaced by threonine, an amino acid with similar properties. This alteration has been reported in a variety of cancer cohort studies, as well as unaffected controls (Grant RC et al. Gastroenterology, 2015 Mar;148:556-64; Decker B et al. J Med Genet, 2017 Nov;54:732-741; Young EL et al. J Med Genet, 2016 Jun;53:366-76; Tiao G et al. Leukemia, 2017 Oct;31:2244-2247; Dorling et al. N Engl J Med 2021 02;384:428-439). This amino acid position is poorly 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
Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Identified in individuals with breast cancer (Decker 2017); This variant is associated with the following publications: (PMID: 28779002) -
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