chr11-108326138-A-T
Variant summary
Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000051.4(ATM):c.6888A>T(p.Ala2296Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,614,064 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A2296A) has been classified as Likely benign.
Frequency
Consequence
NM_000051.4 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -13 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6888A>T | p.Ala2296Ala | synonymous_variant | Exon 47 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152222Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000239 AC: 6AN: 251284Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135810
GnomAD4 exome AF: 0.0000623 AC: 91AN: 1461842Hom.: 0 Cov.: 32 AF XY: 0.0000550 AC XY: 40AN XY: 727226
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152222Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74388
ClinVar
Submissions by phenotype
not provided Benign:4
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ATM: BP4, BP7 -
Ataxia-telangiectasia syndrome Uncertain:1Benign:2
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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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not specified 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.Ala2296= variant was not identified in the literature nor was it identified in the LOVD 3.0 database. The variant was identified in dbSNP (ID: rs200735689) as "With Uncertain significance allele", ClinVar (classified as likely benign by Invitae, Ambry Genetics, Color and Counsyl; and as uncertain significance by Integrated Genetics/Laboratory Corporation of America). The variant was identified in control databases in 7 of 277030 chromosomes at a frequency of 0.00003 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the European population in 7 of 126558 chromosomes (freq: 0.00006), while the variant was not observed in the African, Other, Latino, Ashkenazi Jewish, East Asian, Finnish, or South Asian populations. The p.Ala2296= 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