rs879253983
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000051.4(ATM):c.6313A>G(p.Arg2105Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,372 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 (★★).
Frequency
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6313A>G | p.Arg2105Gly | missense_variant | Exon 43 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 28
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251316Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135828
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1460372Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1AN XY: 726522
GnomAD4 genome Cov.: 28
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 2105 of the ATM protein (p.Arg2105Gly). 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: 245884). 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. -
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Hereditary cancer-predisposing syndrome Uncertain:2
PM2_Supporting, PP3 c.6313A>G, located in exon 43 of the ATM gene, is predicted to result in the substitution of arginine by glycine at codon 2105, p.(Arg2105Gly). This variant is found in 1/266996 alleles at a frequency of 0,0003% in the gnomAD v2.1.1 database, non-cancer dataset (PM2_supporting). The REVEL meta-predictor score for this variant (0.779) suggests a deleterious effect on protein function (PP3). To our knowledge, neither relevant clinical data nor well-established functional studies have been reported for this variant. This variant has been reported in the ClinVar database (5x uncertain significance) and has not been reported in LOVD. Based on currently available information, the variant c.6313A>G should be considered an uncertain significance variant according to ACMG Classification Rules Specified for ATM v1.1. -
The p.R2105G variant (also known as c.6313A>G), located in coding exon 42 of the ATM gene, results from an A to G substitution at nucleotide position 6313. The arginine at codon 2105 is replaced by glycine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
This variant is denoted ATM c.6313A>G at the cDNA level, p.Arg2105Gly (R2105G) at the protein level, and results in the change of an Arginine to a Glycine (AGG>GGG). This variant has not, to our knowledge, been published in the literature as pathogenic or benign. ATM Arg2105Gly was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Since Arginine and Glycine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. ATM Arg2105Gly occurs at a position that is conserved across species and is located in the FAT domain (Tavtigian 2009, Stracker 2013). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on currently available information, it is unclear whether ATM Arg2105Gly is pathogenic or benign. We consider it to be a variant of uncertain significance. -
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