rs3092910
Variant summary
Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_000051.4(ATM):c.5793T>C(p.Ala1931Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00677 in 1,613,558 control chromosomes in the GnomAD database, including 41 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A1931A) has been classified as Likely benign.
Frequency
Consequence
NM_000051.4 synonymous
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Benign. The variant received -21 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.5793T>C | p.Ala1931Ala | synonymous_variant | Exon 39 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00605 AC: 921AN: 152190Hom.: 6 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00506 AC: 1271AN: 251034 AF XY: 0.00488 show subpopulations
GnomAD4 exome AF: 0.00685 AC: 10005AN: 1461250Hom.: 35 Cov.: 31 AF XY: 0.00664 AC XY: 4825AN XY: 726946 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00604 AC: 920AN: 152308Hom.: 6 Cov.: 32 AF XY: 0.00565 AC XY: 421AN XY: 74484 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:8
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Silent variant not near splice site -
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Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
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not provided Benign:6
ATM: BP4, BP7, BS2 -
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Ataxia-telangiectasia syndrome Benign:4
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:4
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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Familial cancer of breast Benign:2
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
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ATM-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Malignant tumor of breast Benign:1
The ATM p.Ala1931= variant was identified in 3 of 572 proband chromosomes (frequency: 0.005) from North American caucasian and American Indian individuals or families with Non-Hodgkin’s Lymphoma, or undisclosed cancer; and was present in 1 of 186 control chromosomes (frequency: 0.005) from healthy individuals (Sipahimalani 2007, Petereit 2013, Thorstenson 2001). Thorstenson et al (2001) showed that ATM shows overall low sequence diversity, when compared across 7 major human populations. The variant was also identified in dbSNP (ID: rs3092910) “With other allele”, ClinVar (classified as benign by Invitae, GeneDx, EGL Genetic Diagnostics (Eurofins Clinical Diagnostics), Color Genomics Inc; and likely benign by Ambry Genetics, Prevention Genetics, Praxis fuer Humangenetik Tuebingen, Lab. for Molecular Medicine Partners HealthCare Personalized Medicine, and Genetic Services Laboratory (U of Chicago)), Clinvitae (5x), and was not identified in Genesight-COGR, Cosmic, MutDB, LOVD 3.0, and ATM-LOVD. The variant was identified in control databases in 1400 (6 homozygous) of 276860 chromosomes at a frequency of 0.005 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Consortium Feb 27, 2017), being identified in the following populations: African in 191 (1 homozygous) of 24012 chromosomes (frequency: 008), Other in 27 of 6450 chromosomes (frequency: 004), Latino in 45 of 34376 chromosomes (frequency: 001), European Non-Finnish in 828 (3 homozygous) of 126508 chromosomes (frequency: 007), Ashkenazi Jewish in 31 of 10146 chromosomes (frequency: 003), East Asian in 213 (2 homozygous) of 18848 chromosomes (frequency: 01), European Finnish in 20 of 25750 chromosomes (frequency: 0008), and South Asian in 45 of 30770 chromosomes (frequency: 001). The p.Ala1931= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. -
Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at