rs201594549
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_000051.4(ATM):c.4466G>A(p.Arg1489His) variant causes a missense change. The variant allele was found at a frequency of 0.0000143 in 1,613,286 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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ATM | NM_000051.4 | c.4466G>A | p.Arg1489His | missense_variant | Exon 30 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000330 AC: 5AN: 151580Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251278Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135794
GnomAD4 exome AF: 0.0000123 AC: 18AN: 1461706Hom.: 0 Cov.: 31 AF XY: 0.0000124 AC XY: 9AN XY: 727162
GnomAD4 genome AF: 0.0000330 AC: 5AN: 151580Hom.: 0 Cov.: 32 AF XY: 0.0000406 AC XY: 3AN XY: 73972
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1489 of the ATM protein (p.Arg1489His). This variant is present in population databases (rs201594549, gnomAD 0.003%). This missense change has been observed in individual(s) with breast cancer, prostate cancer, chronic lymphocytic leukaemia (PMID: 30303537, 33436325, 36029002). ClinVar contains an entry for this variant (Variation ID: 181959). 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. -
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not provided Uncertain:2
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in individuals with chronic lymphocytic leukemia, breast, and prostate cancer (PMID: 28779002, 30303537, 33436325, 36029002); This variant is associated with the following publications: (PMID: 30287823, 30303537, 33436325, 32980694, 28779002, 36029002, 36243179) -
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Hereditary cancer-predisposing syndrome Uncertain:2
The p.R1489H variant (also known as c.4466G>A), located in coding exon 29 of the ATM gene, results from a G to A substitution at nucleotide position 4466. The arginine at codon 1489 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is well 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. -
This missense variant replaces arginine with histidine at codon 1489 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). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer and in one or more unaffected control individual in breast cancer case-control studies (PMID: 28779002, 30287823). This variant has been identified in 4/282602 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. -
Familial cancer of breast Uncertain:1Benign:1
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This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at