11-108347286-C-T
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000051.4(ATM):c.8592C>T(p.Tyr2864Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000865 in 1,607,654 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar 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 -13 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.8592C>T | p.Tyr2864Tyr | synonymous_variant | Exon 59 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ATM | ENST00000675843.1 | c.8592C>T | p.Tyr2864Tyr | synonymous_variant | Exon 59 of 63 | NM_000051.4 | ENSP00000501606.1 |
Frequencies
GnomAD3 genomes AF: 0.000500 AC: 76AN: 152094Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000440 AC: 110AN: 249938 AF XY: 0.000422 show subpopulations
GnomAD4 exome AF: 0.000903 AC: 1314AN: 1455442Hom.: 1 Cov.: 30 AF XY: 0.000830 AC XY: 601AN XY: 724490 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000499 AC: 76AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.000457 AC XY: 34AN XY: 74432 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:11
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ATM: BP4, BP7 -
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not specified Benign:5
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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. -
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Variant summary: ATM c.8592C>T alters a non-conserved nucleotide resulting in a synonymous change. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.00086 in 1607654 control chromosomes, predominantly at a frequency of 0.0011 within the Non-Finnish European subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 1.1 fold of the estimated maximal expected allele frequency for a pathogenic variant in ATM causing Breast Cancer phenotype (0.001), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. c.8592C>T has been reported in the literature in individuals with several types of cancers including but not limited to breast cancer and chronic lymphocytic leukemia (Thorstenson_2003, Bernstein_2010, Skowronska_2011, Petereit _2013). These reports however, do not provide unequivocal conclusions about association of the variant with breast cancer. At least one publication reports experimental evidence evaluating an impact on protein function, however, does not allow convincing conclusions about the variant effect. The following publications have been ascertained in the context of this evaluation (PMID: 17344846, 12810666, 21933854, 24416720, 20305132). ClinVar contains an entry for this variant (Variation ID: 135782). Based on the evidence outlined above, the variant was classified as benign. -
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Hereditary cancer-predisposing syndrome Benign:3
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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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Ataxia-telangiectasia syndrome Benign:2
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Breast and/or ovarian cancer Benign:1
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ATM-related disorder Benign:1
This variant is classified as likely 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.Tyr2864= variant was identified in 6 of 5506 proband chromosomes (frequency: 0.001) from individuals or families with CLL, breast, or ovarian cancer (Bernstein 2010, Petereit 2013, Skowronska 2012, Thorstenson 2003). The variant was also identified in dbSNP (ID: rs56025670) as "With Likely benign allele ", ClinVar (classified as benign by GeneDx; as likely benign by Invitae, Ambry Genetics, Color Genomics, and Integrated Genetics/Laboratory Corporation of America), and in LOVD 3.0 (1x as likely benign). The variant was not identified in COGR, or Cosmic databases. The variant was identified in control databases in 124 of 275644 chromosomes at a frequency of 0.0005 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 5 of 23944 chromosomes (freq: 0.0002), Other in 1 of 6422 chromosomes (freq: 0.0002), Latino in 5 of 34318 chromosomes (freq: 0.0002), European in 113 of 125504 chromosomes (freq: 0.0009), while the variant was not observed in the Ashkenazi Jewish, East Asian, European Finnish, or South Asian populations. The p.Tyr2864= 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) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
Familial cancer of breast Benign:1
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at