11-108326175-C-T
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7
The NM_000051.4(ATM):c.6925C>T(p.Leu2309Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,613,922 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. L2309L) 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 -11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6925C>T | p.Leu2309Leu | synonymous_variant | Exon 47 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152066Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251354 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.0000164 AC: 24AN: 1461856Hom.: 0 Cov.: 32 AF XY: 0.0000193 AC XY: 14AN XY: 727230 show subpopulations
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152066Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74268 show subpopulations
ClinVar
Submissions by phenotype
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. -
not specified Benign:2
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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. -
Ataxia-telangiectasia syndrome Benign:1
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not provided Benign:1
The ATM p.Leu2309= variant was not identified in the literature nor was it identified in the LOVD 3.0 database. The variant was identified in dbSNP (ID: rs763839047) “With Likely benign allele” and ClinVar (classified likely benign by Ambry Genetics, Invitae, GeneDx and Color). The variant was also identified in control databases in 4 of 277074 chromosomes at a frequency of 0.00001 (Genome Aggregation Database Feb 27, 2017), observed in the Ashkenazi Jewish population in 4 of 10150 chromosomes (freq: 0.0004), while not observed in the African, Other, Latino, European Non-Finnish, East Asian, European Finnish, or South Asian populations. The p.Leu2309= 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