rs770722380
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2
The NM_000051.4(ATM):c.5951C>A(p.Thr1984Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000208 in 1,444,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1984S) 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.5951C>A | p.Thr1984Lys | missense_variant | 40/63 | ENST00000675843.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ATM | ENST00000675843.1 | c.5951C>A | p.Thr1984Lys | missense_variant | 40/63 | NM_000051.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251184Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135820
GnomAD4 exome AF: 0.00000208 AC: 3AN: 1444536Hom.: 0 Cov.: 29 AF XY: 0.00000278 AC XY: 2AN XY: 719694
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Ataxia-telangiectasia syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Apr 21, 2022 | This sequence change replaces threonine, which is neutral and polar, with lysine, which is basic and polar, at codon 1984 of the ATM protein (p.Thr1984Lys). This variant is present in population databases (rs770722380, gnomAD 0.006%). 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: 826077). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ATM protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. - |
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Apr 20, 2021 | - - |
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 31, 2023 | The p.T1984K variant (also known as c.5951C>A), located in coding exon 39 of the ATM gene, results from a C to A substitution at nucleotide position 5951. The threonine at codon 1984 is replaced by lysine, an amino acid with similar properties. This amino acid position is not 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Dec 05, 2023 | This missense variant replaces threonine with lysine at codon 1984 of the ATM protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 2/251184 chromosomes in the general population by the Genome Aggregation Database (gnomAD). 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at