chr11-108320024-T-C
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_000051.4(ATM):āc.6418T>Cā(p.Phe2140Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,457,586 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 (ā ā ). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F2140C) has been classified as Uncertain significance.
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6418T>C | p.Phe2140Leu | missense_variant | 44/63 | ENST00000675843.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ATM | ENST00000675843.1 | c.6418T>C | p.Phe2140Leu | missense_variant | 44/63 | NM_000051.4 | P1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249466Hom.: 0 AF XY: 0.00000740 AC XY: 1AN XY: 135064
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1457586Hom.: 0 Cov.: 29 AF XY: 0.00000276 AC XY: 2AN XY: 725372
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Dec 14, 2020 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 09, 2023 | This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 2140 of the ATM protein (p.Phe2140Leu). This variant is present in population databases (no rsID available, gnomAD 0.003%). This missense change has been observed in individual(s) with pancreatic ductal adenocarcinoma, breast and/or ovarian cancer (PMID: 33646313, 35171259). ClinVar contains an entry for this variant (Variation ID: 489571). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | May 17, 2019 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | May 14, 2021 | The p.F2140L variant (also known as c.6418T>C), located in coding exon 43 of the ATM gene, results from a T to C substitution at nucleotide position 6418. The phenylalanine at codon 2140 is replaced by leucine, an amino acid with highly similar properties. This variant was observed in a study of 1010 unrelated Indian patients with breast and/or ovarian cancer (Singh J et al. Breast Cancer Res Treat, 2018 Jul;170:189-196). This amino acid position is highly 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. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Sep 16, 2022 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Observed in individuals with breast and/or ovarian cancer (Singh et al., 2018; George et al., 2021); This variant is associated with the following publications: (PMID: 33646313, 23532176, 29470806) - |
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Jan 11, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at