ClinVar Miner

Submissions for variant NM_000051.3(ATM):c.8549T>A (p.Leu2850Ter) (rs876658716)

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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000215215 SCV000274337 pathogenic Hereditary cancer-predisposing syndrome 2018-01-19 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Alterations resulting in premature truncation (e.g.reading frame shift, nonsense)
GeneDx RCV000519674 SCV000617954 pathogenic not provided 2017-10-06 criteria provided, single submitter clinical testing This variant is denoted ATM c.8549T>A at the cDNA level and p.Leu2850Ter (L2850X) at the proteinlevel. The substitution creates a nonsense variant, which changes a Leucine to a premature stop codon (TTG>TAG),and is predicted to cause loss of normal protein function through either protein truncation or nonsense-mediated mRNAdecay. Although this variant has not, to our knowledge, been reported in the literature, it is considered pathogenic
Invitae RCV000526852 SCV000622827 pathogenic Ataxia-telangiectasia syndrome 2018-12-12 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Leu2850*) in the ATM gene. It is expected to result in an absent or disrupted protein product. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with ATM-related disease. ClinVar contains an entry for this variant (Variation ID: 230697). Loss-of-function variants in ATM are known to be pathogenic (PMID: 25614872, 23807571). For these reasons, this variant has been classified as Pathogenic.
Color RCV000215215 SCV000682495 pathogenic Hereditary cancer-predisposing syndrome 2017-06-02 criteria provided, single submitter clinical testing
Integrated Genetics/Laboratory Corporation of America RCV000526852 SCV000916549 likely pathogenic Ataxia-telangiectasia syndrome 2018-02-09 criteria provided, single submitter clinical testing Variant summary: ATM c.8549T>A (p.Leu2850X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. A truncation downstream of this position, c.8977C>T (p.Arg2993X) have been classified as pathogenic by our laboratory. To our knowledge, no occurrence of c.8549T>A in individuals affected with Ataxia-Telangiectasia and no experimental evidence demonstrating its impact on protein function have been reported. Multiple clinical diagnostic laboratories via ClinVar (evaluation after 2014) classified the variant as "pathogenic." Based on the evidence outlined above, the variant was classified as likely pathogenic.

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