11-108302950-T-C
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_000051.4(ATM):āc.5417T>Cā(p.Ile1806Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,613,410 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.5417T>C | p.Ile1806Thr | missense_variant | Exon 36 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152142Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251156Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135730
GnomAD4 exome AF: 0.0000109 AC: 16AN: 1461268Hom.: 0 Cov.: 30 AF XY: 0.00000963 AC XY: 7AN XY: 726950
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152142Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74330
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces isoleucine with threonine at codon 1806 of the ATM protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in several individuals affected with hereditary breast cancer (PMID: 33471991; Mentoor 2017, dissertation, University of Pretoria). This variant has been identified in 2/282554 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.I1806T variant (also known as c.5417T>C), located in coding exon 35 of the ATM gene, results from a T to C substitution at nucleotide position 5417. The isoleucine at codon 1806 is replaced by threonine, an amino acid with similar properties. This variant was reported in 1/5560 prostate cancer cases and in 0/3353 controls of European ancestry (Karlsson Q et al. Eur Urol Oncol, 2021 Aug;4:570-579). 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. -
Ataxia-telangiectasia syndrome Uncertain:1Benign:1
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not specified Uncertain:1
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Breast and/or ovarian cancer Uncertain:1
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not provided Uncertain:1
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; Observed in an individual with prostate cancer (Karlsson et al., 2021); This variant is associated with the following publications: (PMID: 33436325) -
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